CN111541300B

CN111541300B - Constant value management system, method, server and medium for intelligent on-site unit

Info

Publication number: CN111541300B
Application number: CN202010331737.7A
Authority: CN
Inventors: 潘荣贞; 黄兵; 薛宇
Original assignee: Kyland Technology Co Ltd
Current assignee: Kyland Technology Co Ltd
Priority date: 2020-04-24
Filing date: 2020-04-24
Publication date: 2022-08-23
Anticipated expiration: 2040-04-24
Also published as: CN111541300A

Abstract

The embodiment of the invention discloses a constant value management system, a method, a server and a medium of an intelligent on-site unit, wherein the system comprises the following components: the system comprises an SCADA background, a power server comprising a plurality of protection modules and a plurality of intelligent local units; the power server is connected with the SCADA background, and a protection module of the power server is in communication connection with the intelligent on-site unit through a preset GOOSE fixed value transceiving virtual terminal; and the SCADA background is used for managing the fixed value of the power server and the fixed value of the intelligent local unit connected with each protection module of the power server according to the fixed value database in the power server and the ICD fixed value data set of the power server. The scheme of the embodiment of the invention realizes the constant value management of the intelligent on-site unit, and the intelligent on-site unit does not need to be connected to equipment except the power server, thereby reducing communication links and hardware expenditure.

Description

Constant value management system, method, server and medium for intelligent on-site unit

Technical Field

The embodiment of the invention relates to the technical field of intelligent substation communication, in particular to a constant value management system, method, server and medium of an intelligent on-site unit.

Background

The constant value management of the protection device is an important component of the protection function of the transformer substation and the distribution station, and the correct constant value management is the premise that the transformer substation and the distribution station realize correct protection. The fixed value management of the protection device mainly comprises the following steps: checking the fixed value, modifying the fixed value, switching the fixed value, checking the fixed value, storing the fixed value and the like.

The intelligent on-site unit of the transformer Substation and the distribution Substation is a special protection device, and plays a role in collecting and uploading each interval GOOSE (Generic Object-Oriented Substation Event) or SV (Sampled Value) on site to the power server, executing a GOOSE tripping and closing command from the power server, and playing a role in on-site backup protection. At present, the fixed value management of the protection device is mainly realized by an HMI (Human Machine Interface) mode, a background mode, a letter protection substation mode or a maintenance software mode.

The prior art is adopted to carry out the defect analysis of constant value management on the intelligent on-site unit: the fixed value of the intelligent on-site unit is managed in an HMI mode and a maintenance software mode, and the on-site operation is needed, which brings great inconvenience to the later maintenance of the transformer substation; the fixed value of the intelligent on-site unit is managed in a background mode and an information protection substation mode, a station control layer network port of the intelligent on-site unit is required to be connected to an information protection substation module of a background or a transformer substation server or a power distribution station server through a network cable, and at least one intelligent on-site unit is required to be installed at each interval, so that a lot of network cables are required to be connected, hardware overhead and communication fault points are increased, and inconvenience is brought to the fixed value management of the intelligent on-site unit.

Disclosure of Invention

The embodiment of the invention provides a constant value management system, a method, a server and a medium of an intelligent on-site unit, which are used for realizing constant value management of the intelligent on-site unit and reducing the management cost.

In a first aspect, an embodiment of the present invention provides a system for value-fixing management of an intelligent local unit, where the system includes: an SCADA (Supervisory Control And Data Acquisition And monitoring Control system) background, an electric power server comprising a plurality of protection modules And a plurality of intelligent on-site units;

the power server is connected with the SCADA background, and the protection module of the power server is in communication connection with the intelligent on-site unit through a preset GOOSE fixed value transceiving virtual terminal;

the SCADA background is used for managing the fixed value of the power server and the fixed value of the Intelligent local unit connected with each protection module of the power server according to a fixed value database in the power server and an ICD fixed value data set (Intelligent Electronic Device Capability Description) of the power server; the fixed value database of the power server and the ICD fixed value data sets of the power server respectively comprise ICD fixed value data sets of intelligent local units connected with the protection modules.

In a second aspect, an embodiment of the present invention further provides a method for modeling a fixed value of an intelligent in-place unit, where the method includes:

respectively adding ICD (interface control document) constant value data sets of intelligent local units connected with the protection modules into a constant value database of the power server and an ICD constant value data set of the power server;

adding GOOSE constant value receiving and transmitting virtual terminals in the ICD file of the power server and the ICD file of each intelligent local unit respectively;

establishing a connection relation between each protection module in the power server and the intelligent on-site unit;

and exporting a CCD (Configured Circuit Description) and a CID (Configured IED Description) of the power server and each intelligent local unit, and downloading the CCD file and the CID file to the power server and each intelligent local unit respectively.

In a third aspect, an embodiment of the present invention further provides a fixed value management method for an intelligent local unit, where a fixed value database of a power server and an ICD fixed value dataset of the power server respectively include ICD fixed value datasets of the intelligent local unit connected to each protection module, and the method includes:

when receiving a constant value modification command sent by an SCADA (supervisory control and data acquisition) background, the power server identifies a constant value modification object matched with the constant value management command according to a constant value database in the power server;

if the fixed value management object is determined to be a target intelligent on-site unit in communication connection, sending a GOOSE fixed value mutation message matched with the fixed value management command to the target intelligent on-site unit through a matched GOOSE fixed value sending virtual terminal;

and the GOOSE fixed value mutation message comprises all fixed values of the target intelligent local unit.

In a fourth aspect, an embodiment of the present invention further provides a method for fixed value management of an intelligent local unit, where a fixed value database of a power server and an ICD fixed value dataset of the power server respectively include ICD fixed value datasets of the intelligent local unit connected to each protection module, and the method includes:

the intelligent local unit receives a GOOSE constant value mutation message sent by a power server in communication connection through a GOOSE constant value receiving virtual terminal;

and executing a constant value management operation corresponding to the GOOSE constant value mutation message according to the GOOSE constant value mutation message.

In a fifth aspect, the present invention further provides a power server, including a memory, a processor, and a computer program stored in the memory and executable on the processor, where the processor implements the method for modeling the fixed value of the intelligent on-site unit or the method for managing the fixed value of the intelligent on-site unit according to any one of the embodiments of the present invention when executing the program.

In a sixth aspect, embodiments of the present invention further provide a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the method for modeling the fixed value of an intelligent in-place unit or the method for managing the fixed value of the intelligent in-place unit according to any of the embodiments of the present invention.

According to the constant value management system of the intelligent substation, the constant value database of the power server and the ICD constant value data set of the power server respectively comprise the ICD constant value data sets of the intelligent local units connected with the protection modules, the SCADA background can describe the ICD constant value data sets according to the constant value database in the power server and the intelligent power device capacity of the power server, and manage the constant value of the power server and the constant value of the intelligent local units connected with the protection modules of the power server, so that the constant value management of the intelligent local units is realized, the intelligent local units do not need to be connected to equipment except the power server, communication links are reduced, and hardware cost is reduced.

Drawings

FIG. 1 is a schematic structural diagram of a constant value management system of an intelligent on-site unit according to a first embodiment of the present invention;

FIG. 2 is a flowchart of a method for modeling a fixed value of an intelligent in-place unit according to a second embodiment of the present invention;

FIG. 3 is a flow chart of a constant value communication process of an intelligent local unit according to a third embodiment of the present invention;

FIG. 4 is a flowchart of a method for value management of an intelligent on-site unit according to a fourth embodiment of the present invention;

fig. 5 is a wiring diagram of a 110KV substation in the fourth embodiment of the present invention;

fig. 6 is a software flowchart of power server protection module value management according to a fourth embodiment of the present invention;

FIG. 7 is a software flow diagram of intelligent in-place unit rating management in a fourth embodiment of the present invention;

FIG. 8 is a schematic structural diagram of a fixed-value modeling apparatus for an intelligent on-site unit according to a fifth embodiment of the present invention;

FIG. 9 is a schematic structural diagram of a constant value management apparatus of an intelligent on-site unit according to a sixth embodiment of the present invention;

FIG. 10 is a schematic diagram illustrating an exemplary configuration of a constant value management apparatus of an intelligent site unit according to a seventh embodiment of the present invention;

fig. 11 is a schematic structural diagram of an electric power server in an eighth embodiment of the present invention.

Detailed Description

The embodiments of the present invention will be described in further detail with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of and not restrictive on the broad invention. It should be further noted that, for convenience of description, only some structures, not all structures, relating to the embodiments of the present invention are shown in the drawings.

Before discussing exemplary embodiments in more detail, it should be noted that some exemplary embodiments are described as processes or methods depicted as flowcharts. Although a flowchart may describe the operations (or steps) as a sequential process, many of the operations can be performed in parallel, concurrently or simultaneously. In addition, the order of the operations may be re-arranged. The process may be terminated when its operations are completed, but may have additional steps not included in the figure. The processes may correspond to methods, functions, procedures, subroutines, and the like.

For ease of understanding, the main inventive concepts of the embodiments of the present invention are briefly described.

In the prior art, the fixed value of the intelligent on-site unit is protected in an HMI mode and a maintenance software mode, and on-site operation is needed, which brings great inconvenience to later maintenance of a transformer substation; the fixed value of the intelligent on-site unit is protected in a background mode and an information protection substation mode, a station control layer network port of the intelligent on-site unit is required to be connected to a background or an information protection substation module of a power server through a network cable, and at least one intelligent on-site unit is required to be installed at each interval, so that a lot of network cables are required to be connected, hardware overhead and communication fault points are increased, and inconvenience is brought to fixed value management of the intelligent on-site unit.

The inventor considers whether the fixed-value management of the intelligent on-site unit and the server protection module of the transformer substation is realized through ICD file modeling and GOOSE communication or not aiming at the problems of inconvenience in later maintenance of the transformer substation and large economic cost and inconvenience in management caused by the fact that a large number of network cables are needed to connect the intelligent on-site unit and the power server in the prior art. The power server may be a substation server or a distribution station server. The intelligent on-site unit is a device integrating the merging unit and the intelligent assembly, and plays a role in locally acquiring and uploading GOOSE/SV at intervals to the power server and executing a GOOSE tripping and closing command from the power server, and also plays a role in on-site backup protection. When GOOSE heartbeat is lost between the intelligent local unit and the protection module of the power server, the local protection function is started besides the functions of the execution merging unit and the intelligent assembly, and the intelligent local unit is used for completing the protection of the local interval fault.

Based on the above thought, the inventor creatively proposes a fixed value management system of intelligent on-site unit, the system includes: the system comprises an SCADA background, a power server comprising a plurality of protection modules and a plurality of intelligent on-site units; the power server is connected with the SCADA background, and a protection module of the power server is in communication connection with the intelligent on-site unit through a preset GOOSE fixed value transceiving virtual terminal; the SCADA background is used for managing the fixed value of the power server and the fixed value of the intelligent local unit connected with each protection module of the power server according to the fixed value database and the ICD fixed value data set in the power server; the ICD fixed value data sets of the intelligent local units connected with the protection modules are respectively contained in the fixed value database of the power server and the ICD fixed value data sets of the power server, and the problems that in the prior art, communication connection between the intelligent local units and the protection modules needs to be carried out through network cables, hardware overhead and communication fault points are increased, and inconvenience is brought to fixed value management of the intelligent local units are solved.

Example one

Fig. 1 is a schematic structural diagram of a valuing management system of an intelligent on-site unit in an embodiment of the present invention, where this embodiment is applicable to a case of managing the valuing of the intelligent on-site unit in an intelligent substation, and for example, the valuing management function of the intelligent on-site unit may include: checking the fixed value, modifying the fixed value, verifying the fixed value, communicating the fixed value, storing the fixed value and the like. Specifically, referring to fig. 1, the system mainly includes: the system comprises a power server 110 comprising a plurality of protection modules, an intelligent on-site unit 120 and an SCADA background 130, wherein the power server 110 is in communication connection with the intelligent on-site unit 120 through a preset GOOSE fixed value receiving and transmitting virtual terminal; the power server 110 is connected to the SCADA backend 130 via an MMS (manufactured Message specification) protocol. It should be noted that, in the embodiment of the present invention, the GOOSE-valued virtual transceiver terminal includes: GOOSE fixed value sending virtual terminal and GOOSE fixed value receiving virtual terminal.

For example, the fixed value of the intelligent in-place unit involved in the embodiment of the present invention may be a control word fixed value, an over-current fixed value, a delay fixed value, a soft pressure plate fixed value, and the like. By setting reasonable fixed values for the power server protection module and the intelligent on-site unit, rapidity, selectivity, sensitivity and reliability of each interval protection of the transformer substation can be realized. It should be noted that, in the embodiment of the present invention, a plurality of fixed values may be set in each of the power server protection module and the intelligent on-site unit.

Specifically, the power server 110 may include a plurality of protection modules, which is not limited in the embodiment of the present invention; the protection modules included in the power server 110 may be protection modules such as a main transformer protection module, a line protection module, a capacitor protection module, or a reactor protection module, each protection module includes data sets such as telemetry, remote signaling, remote control, device parameters, setting values, SV reception, GOOSE reception, and GOOSE transmission, where ICD setting data sets of different protection modules may be distinguished by a module number in an ICD setting data set short address.

It should be noted that the intelligent on-site unit 120 in the substation plays a role of locally acquiring and uploading GOOSE/SV intervals to the power server, executing a GOOSE tripping and closing command from the power server, and plays a role of on-site backup protection. It should be noted that the number of the intelligent site units 120 in the embodiment of the present invention is not fixed, and the specific number is related to the type and the number of the protection modules included in the power server 110. For example, if the protection module included in the power server 110 is a single-interval protection module, the power server 110 is only in communication connection with one intelligent on-site unit through a GOOSE fixed-value transceiving virtual terminal; if the protection module included in the power server 110 is a multi-interval protection module, the power server 110 may be communicatively connected to a plurality of intelligent local units via GOOSE-rated transceiving virtual terminals, for example, one multi-interval power server may be communicatively connected to 16 or 32 intelligent local units via GOOSE-rated transceiving virtual terminals, which is not limited in the embodiment of the present invention.

Specifically, in the embodiment of the present invention, each protection module included in the power server 110 is connected to the intelligent on-site unit through a preconfigured GOOSE fixed value transceiver virtual terminal; the fixed value number of each intelligent local unit is assumed to be n, where n may be any positive integer, which is not limited in the embodiment of the present invention. Configuring the GOOSE fixed value transmitting and receiving virtual terminal of the single-interval protection module according to table 1; configuring GOOSE fixed value transceiving virtual terminals of the multi-interval protection module according to table 2, wherein it is assumed that the number of intelligent local units connected to the multi-interval protection module is m, where m is any positive integer greater than 1, and the embodiments of the present invention are not limited thereto.

Table 1 GOOSE definite value transmitting-receiving virtual terminal configuration table of single interval protection module

Serial number	GOOSE fixed value receiving and sending virtual terminal name	Soft pressing plate for receiving and sending	Data type
				0	Unit definite value modification mark	Is free of	INT32
1～n	Unit constant value 1 to unit constant value n	Is free of	INT32
				n+1	Cell-valued checksum	Is free of	INT32

It should be noted that the name of the GOOSE fixed value transceiving virtual terminal referred to in table 1 is the name of the receive or transmit GOOSE fixed value virtual terminal corresponding to the single interval protection module; as can be seen from table 1, in the embodiment of the present invention, for a receiving or sending GOOSE fixed value virtual terminal corresponding to a single-interval protection module, the receiving or sending GOOSE fixed value virtual terminal does not adopt a soft pressing plate to implement the operation or exit of the GOOSE fixed value receiving/sending function, and the receiving/sending function is default to the operation. Meanwhile, it can be seen from table 1 that the GOOSE fixed value transceiving virtual terminal of the single interval protection module realizes transceiving of the ICD fixed value data set through the 32-bit integer GOOSE data format.

Table 2 GOOSE definite value transmitting-receiving virtual terminal configuration table of multi-interval protection module

Serial number	GOOSE fixed value receiving and sending virtual terminal name	Soft pressing plate for receiving and dispatching	Data type
				0	Unit 1 constant value modification flag	Is free of	INT32
1～n	Cell	1 constant value 1 to cell 1 constant value n	Is free of					INT32
				n+1	Unit 1 constant value checksum	Is free of	INT32
n+2	Unit 2 constant value modify flag	Is free of	INT32
					Cell
2 constant value 1 to cell 1 constant value n	Is free of	INT32
			2n+3	Unit 2 constant value checksum	Is composed of	INT32
…	…	Is free of					INT32
			…	Cell m constant value modification flag	Is free of	INT32
…	Constant value of 1 unit m to constant value of n unit 1	Is free of					INT32
			…	Unit m constant value checksum	Is free of	INT32

It should be noted that the name of GOOSE fixed value receiving/transmitting virtual terminal referred to in table 2 is the name of receiving or transmitting GOOSE fixed value virtual terminal corresponding to the multi-interval protection module; the receiving and sending soft pressing plates are soft pressing plates which correspond to the multi-interval protection modules and receive or send GOOSE fixed value virtual terminals. As can be seen from table 2, in the embodiment of the present invention, for the virtual terminal corresponding to the multi-interval protection module that receives or transmits the GOOSE fixed value, the GOOSE transmitting/receiving function is not switched on or switched off by using the soft pressing plate, and the transmitting/receiving function is default to be switched on. Meanwhile, it can be seen from table 2 that the GOOSE definite value transceiving dummy terminal of the multi-interval protection module realizes transceiving of the ICD definite value data set through the 32-bit integer GOOSE data format.

In a specific example of the embodiment of the present invention, each protection module may be connected to the intelligent on-site unit through the configured GOOSE fixed value transceiving virtual terminal; for example, for a single-interval protection module, a GOOSE fixed-value sending virtual terminal corresponding to the single-interval protection module may be in communication connection with a receiving virtual terminal of an intelligent on-site unit; the receiving virtual terminal corresponding to the single-interval protection module can be in communication connection with the GOOSE fixed value sending virtual terminal of the intelligent local unit. For example, for the multi-interval protection module, the GOOSE fixed-value sending virtual terminal corresponding to the multi-interval protection module may be communicatively connected with the receiving virtual terminals of the m intelligent on-site units; the receiving virtual terminals corresponding to the multi-interval protection module and GOOSE fixed value sending virtual terminals of m intelligent local units can be connected in a communication mode, wherein m can be any positive integer larger than 1.

Specifically, the power server 110 according to the embodiment of the present invention is configured to, when it is determined that the received constant value management command is a constant value modification command, identify a constant value modification object matching the received constant value modification command according to the constant value database; and if the fixed value modification object is determined to be one or more target intelligent local units in communication connection, sending a GOOSE fixed value mutation message matched with the fixed value modification command to the target intelligent local units through the matched GOOSE fixed value sending virtual terminal.

In another specific example of the embodiment of the present invention, the power server 110 may be further configured to, upon determining that the received constant value management command is a constant value query command, extract the constant values of the power server and the intelligent local units from the constant value database, and upload the extracted constant values to the SCADA backend 130.

Specifically, when the power server 110 receives a constant value modification command sent by the SCADA backend 130, the power server 110 first identifies whether a constant value management object matched with the constant value modification command is a power server protection module or an intelligent local unit connected to the power server protection module through a GOOSE constant value virtual terminal. And if the fixed value management object matched with the fixed value modification command is determined to be the target intelligent on-site unit, sending a GOOSE fixed value mutation message matched with the fixed value modification command to the target intelligent on-site unit through a GOOSE fixed value sending virtual terminal of the power server protection module.

It should be noted that, if the power server protection module is a single-interval protection module, the target intelligent on-site unit is an intelligent on-site unit connected to the single-interval protection module through a GOOSE-set value transceiving virtual terminal; if the power server protection module is a multi-interval protection module, the target intelligent on-site unit may be a plurality of intelligent on-site units connected to the multi-interval protection module through GOOSE fixed-value transceiving virtual terminals.

And the fixed value database in the power server and the ICD fixed value data sets of the power server respectively comprise ICD fixed value data sets of the intelligent local units connected with the protection module. Specifically, the fixed value data set of the intelligent on-site unit is added behind the fixed value data set of the corresponding protection module of the server, and is added into a Flash fixed value database locally protected by the server. For single-interval protection modules, such as line protection, variable protection used, capacitor protection, reactor protection and the like, because each single-interval protection module is connected to an intelligent on-site unit through only one optical fiber, the intelligent on-site unit constant value data set can be directly added into the constant value data set of the single-interval protection module; for multi-interval protection modules, such as a main transformer protection module, a bus protection module, a backup power automatic switching protection module, etc., since each multi-interval module is connected to a plurality of intelligent on-site units through a plurality of optical fibers, a plurality of unit constant value data sets need to be merged and then added to the constant value data set of the multi-interval protection module.

Specifically, the intelligent local unit executes a fixed value management operation corresponding to the GOOSE fixed value mutation message when receiving the GOOSE fixed value mutation message through the GOOSE fixed value receiving virtual terminal. Specifically, when the intelligent on-site unit receives a GOOSE fixed value mutation message sent by the power server through the virtual GOOSE fixed value receiving terminal of the intelligent on-site unit, the fixed value corresponding to the intelligent on-site unit is configured locally. It should be noted that, the intelligent local unit is an intelligent local unit when receiving the GOOSE fixed-value mutation message sent by the power server, and is named as the intelligent local unit for better explaining the embodiment of the present invention, and is not limited to the embodiment of the present invention.

The present embodiment provides a constant value management system for intelligent local unit, including: the system comprises an SCADA background, a power server comprising a plurality of protection modules and a plurality of intelligent local units; the fixed value database of the power server and the ICD fixed value data set of the power server respectively comprise ICD fixed value data sets of intelligent local units connected with the protection modules, the SCADA background can describe the ICD fixed value data sets according to the fixed value database in the power server and the intelligent power device capacity of the power server, fixed values of the power server and fixed values of the intelligent local units connected with the protection modules of the power server are managed, fixed value management of the intelligent local units is achieved, the intelligent local units do not need to be connected to equipment except the power server, communication links are reduced, and hardware overhead is reduced.

Example two

Fig. 2 is a flowchart of a method for modeling a fixed-value of an intelligent on-site unit according to a second embodiment of the present invention, where the method is applied to modeling fixed-value management of an intelligent on-site unit in a substation, and the method may be implemented by a fixed-value modeling apparatus of an intelligent on-site unit, and the apparatus may be implemented by software and/or hardware and integrated into a computer device executing the method. Specifically, referring to fig. 2, the method specifically includes the following steps:

and S210, adding the ICD fixed value data sets of the intelligent local units connected with the protection modules into the fixed value database of the power server and the ICD fixed value data sets of the power server respectively.

Specifically, the ICD file of the power server is composed of a plurality of functional modules, and the functional modules include different protection modules and multiple spaced measurement and control modules; the protection module comprises a main transformer protection module, a line protection module, a used transformer (grounding transformer) protection module, a capacitor protection module, a reactor protection module, a spare power automatic switching module and the like, an ICD (interface control device) file corresponding to each protection module is configured to be equivalent to an ICD file of a conventional digital protection device and comprises independent data sets of remote measurement, remote signaling, remote control, equipment parameters, fixed values, SV (space velocity) receiving, GOOSE (global position system operation) sending and the like, and different protection module data sets are distinguished through module numbers in short addresses of the data sets. Therefore, the ICD file of the power server has the advantages of being good in all-station unified configuration and expandability, for the ICD constant value data set, the constant value of one functional module is modified from the background, the protection function of the module is only affected, and the functions of other protection modules are not affected.

Specifically, adding the ICD fixed-value data sets of the intelligent local units connected to the protection modules into the fixed-value database of the power server and the ICD fixed-value data sets of the power server respectively may include: adding an ICD (interface control document) fixed value data set of the intelligent on-site unit behind an ICD fixed value data set of a corresponding protection module of the power server and simultaneously adding the ICD fixed value data set of the intelligent on-site unit into a fixed value database of the power server; the ICD fixed value data set of the protection module is stored in an ICD file, and the fixed value database of the power server is a Flash (Flash memory) fixed value database locally protected by the power server.

It should be noted that, for the single-interval protection module, for example: the single-interval protection module can be a protection module such as a line, a transformer, a capacitor or a reactor; because each protection module is connected to one intelligent local unit through one optical fiber, the ICD (interface control document) fixed value data set of the local unit can be directly added behind the ICD fixed value data set of the protection module; for a multi-interval protection module, for example: protection modules such as a main transformer, a bus or a spare power automatic switching device and the like; since each protection module is connected to a plurality of intelligent local units via a plurality of optical fibers, a plurality of unit ICD constant value data sets need to be merged and then added behind the protection module ICD constant value data set.

And S220, adding GOOSE fixed value transceiving virtual terminals in the ICD file of the power server and the ICD file of each intelligent local unit respectively.

Specifically, after the ICD fixed value data sets of the intelligent local units connected to the protection modules are added to the fixed value database and ICD files of the power server, GOOSE fixed value transceiving virtual terminals may be further added to the ICD files of the power server and ICD files of the intelligent local units, respectively.

For example, a plurality of GOOSE-fixed-value sending virtual terminals and a plurality of GOOSE-fixed-value receiving virtual terminals may be created in an ICD file of the power server; a plurality of GOOSE fixed value sending virtual terminals and a plurality of GOOSE fixed value receiving virtual terminals are established in an ICD file of each intelligent local unit.

And S230, establishing a connection relation between each protection module in the power server and the intelligent local unit, namely a fixed value virtual terminal connection relation.

Specifically, after GOOSE fixed value transceiving virtual terminals are added to ICD files of the power server and the intelligent local units, a connection relationship between each protection module in the power server and the GOOSE fixed value transceiving virtual terminals of the intelligent local units, that is, a connection relationship between the fixed value virtual terminals, may be further created according to the SCD file composed of the ICD files of the power server and the intelligent local units.

For example, for a single-interval protection module, the single-interval protection module is connected to an intelligent on-site unit through only one optical fiber, a GOOSE fixed-value sending virtual terminal of the single-interval protection module is directly connected to a GOOSE fixed-value receiving virtual terminal of the intelligent on-site unit, and the GOOSE fixed-value receiving virtual terminal of the single-interval protection module is connected to the GOOSE fixed-value sending virtual terminal of the intelligent on-site unit; for the multi-interval protection module, the multi-interval protection module is connected to a plurality of intelligent local units through a plurality of optical fibers, the GOOSE constant value transmitting virtual terminals of the multi-interval protection module are sequentially connected to the GOOSE constant value receiving virtual terminals of the m intelligent local units, and the GOOSE constant value receiving virtual terminals of the multi-interval protection module are connected to the GOOSE constant value transmitting virtual terminals of the m intelligent local units, wherein m can be any positive integer larger than 1.

And S240, exporting the CCD file and the CID file of the power server and each intelligent local unit, and downloading the CCD file and the CID file into the power server and each intelligent local unit respectively.

Specifically, after the connection relationship between each protection module in the power server and the intelligent local unit is established, the CCD file and the CID file of the power server and each intelligent local unit may be derived from the SCD file composed of the ICD files of the power server and each intelligent local unit, and the CCD file and the CID file are downloaded to the power server and each intelligent local unit, respectively, and the SCD file is imported to the SCADA background.

In the embodiment, ICD fixed value data sets of intelligent local units connected with all protection modules are added into a fixed value database and an ICD file of a power server; adding GOOSE fixed value transceiving virtual terminals in the ICD file of the power server and the ICD file of each intelligent local unit respectively; establishing a connection relation between each protection module in the power server and the intelligent local unit; the CCD files and CID files of the power server and the intelligent on-site units are exported and downloaded to the power server and the intelligent on-site units respectively, and the SCD files are imported to the SCADA background, so that the constant value modeling of the intelligent on-site units is realized, the connection relation between the protection module in the power server and the intelligent on-site units is established, and a basis is provided for the constant value management of the intelligent on-site units.

EXAMPLE III

Fig. 3 is a flowchart of a method for valuing management of an intelligent on-site unit according to a third embodiment of the present invention, where the method is applied to a case where the valuing management of the intelligent on-site unit in the substation is performed by a valuing management device of the intelligent on-site unit, and the device may be implemented by software and/or hardware and integrated into a computer device executing the method. Specifically, referring to fig. 3, the method specifically includes the following steps:

s310, when the power server receives a constant value modification command sent by the SCADA background, identifying a constant value modification object matched with the constant value modification command according to a constant value database in the power server.

It should be noted that, in the embodiment of the present invention, the fixed-value database of the power server and the ICD fixed-value dataset of the power server respectively include ICD fixed-value datasets of the intelligent local units connected to the protection modules.

Specifically, when the power server receives a constant value modification command sent by the SCADA background through the IEC61850 protocol, the power server first needs to identify a constant value modification object matched with the constant value modification command according to a constant value database in the power server. Note that, the fixed value database in the power server stores fixed values of all the power server protection modules and the intelligent local units connected to the power server via GOOSE fixed value transceiving virtual terminals.

In a specific example of the embodiment of the present invention, when receiving the constant value modification command, the power server identifies a constant value modification object matching the constant value modification command, and may include: comparing the ICD constant value data set contained in the constant value modification command with each ICD constant value data set in a constant value database of the power server to determine a constant value modification object; after identifying the constant value modification object matched with the constant value modification command, the method may further include: and if the fixed value modification object is determined to be the target protection module in the power server, modifying the fixed value of the target protection module and immediately starting. It should be noted that the target protection module may be any one of the protection modules in the power server.

Optionally, when the power server does not receive a fixed value modification command sent by the SCADA background, the GOOSE fixed value of each intelligent local unit is taken out from the fixed value database, and a corresponding GOOSE fixed value heartbeat message is sent to each intelligent local unit; the GOOSE fixed value heartbeat message contains all fixed values of the corresponding intelligent local unit. For example, the power server may send the corresponding GOOSE-valued heartbeat packet to each intelligent local unit at a set time interval period (e.g., 5 seconds).

And S320, if the fixed-value management object is determined to be the target intelligent local unit in communication connection, sending a GOOSE fixed-value mutation message matched with the fixed-value modification command to the target intelligent local unit through the matched GOOSE fixed-value sending virtual terminal.

Specifically, if the power server determines that the constant-value management object is a target intelligent on-site unit in communication connection with the power server protection module, the virtual terminal may be sent according to the GOOSE constant value matching the power server and the target intelligent on-site unit, and a GOOSE constant value mutation message matching the constant value modification command is sent to the target intelligent on-site unit. The GOOSE fixed value mutation message contains all fixed values of the target intelligent local unit. The target intelligent site unit may be any intelligent site unit communicatively connected to any protection module of the power server, which is not limited by the embodiment of the present invention.

In a specific example of the embodiment of the present invention, if it is determined that the fixed-value modification object is a target intelligent local unit in communication connection, sending a GOOSE fixed-value mutation packet matched with the fixed-value modification command to the target intelligent local unit through the GOOSE fixed-value sending virtual terminal may specifically include: if the fixed value modification object is determined to be the target intelligent on-site unit in communication connection, the GOOSE sending data and the fixed value checksum of the target intelligent on-site unit are refreshed, and the fixed value modification identifier matched with the target intelligent on-site unit is set to be in an effective state; and constructing and sending a GOOSE constant value mutation message according to the constant value modification identifier and the new constant value of the data set in the constant value modification command.

Specifically, if the fixed-value modification object is determined to be the target intelligent on-site unit, the power server sets the fixed-value modification identifier matched with the target intelligent on-site unit to be in an effective state, and exemplarily, the fixed-value modification identifier matched with the target intelligent on-site unit may be set to be 1; further, according to the fixed value modification identifier and the new fixed value of the data set in the fixed value modification command, a GOOSE fixed value mutation message is constructed, and the GOOSE fixed value mutation message is sent to the target intelligent local unit.

Optionally, after sending the GOOSE fixed value mutation packet matched with the fixed value modification command to the target intelligent local unit through the GOOSE fixed value sending virtual terminal, the method may further include: receiving a GOOSE constant value message returned by the target intelligent local unit; if the fixed value modification of the target intelligent on-site unit is not successfully completed according to the comparison result of the GOOSE fixed value sending message and the GOOSE fixed value returning message, keeping the fixed value modification identification of the effective state in the sending message, and continuously sending the GOOSE fixed value heartbeat message to the target intelligent on-site unit through a GOOSE fixed value sending virtual terminal; if the target intelligent local unit is determined to not successfully complete the configuration of the fixed value within the set time length, reporting an alarm signal; and if the target intelligent on-site unit successfully completes the configuration of the fixed value according to the comparison result of the GOOSE fixed value sending message and the GOOSE fixed value returning message, setting the fixed value modification identifier of the target intelligent on-site unit to be in an invalid state. Illustratively, the constant value modification flag of the target intelligent in-place unit is set to 0.

In the embodiment, when the power server receives a constant value modification command sent by an SCADA (supervisory control and data acquisition) background, a constant value modification object matched with the constant value management command is identified according to a constant value database in the power server; if the fixed value management object is determined to be a target intelligent on-site unit in communication connection, sending a GOOSE fixed value mutation message matched with the fixed value modification command to the target intelligent on-site unit through the matched GOOSE fixed value sending virtual terminal; the GOOSE fixed value mutation message contains all fixed values of the target intelligent local unit. The intelligent on-site unit constant value management is achieved, the GOOSE constant value mutation message matched with the constant value modification command is sent to the target intelligent on-site unit through the GOOSE constant value sending virtual terminal of the power server, the intelligent on-site unit constant value management is achieved, the intelligent on-site unit does not need to be connected to equipment except the power server, communication links are reduced, and hardware overhead is reduced.

Example four

Fig. 4 is a flowchart of a method for value management of an intelligent local unit according to a fourth embodiment of the present invention, where the method may be applied to a value management system of an intelligent local unit according to any embodiment of the present invention, and the method may be implemented by a value management apparatus of an intelligent local unit, where the apparatus may be implemented by software and/or hardware and is integrated into a computer device executing the method. Specifically, referring to fig. 4, the method specifically includes the following steps:

and S410, the intelligent local unit receives a GOOSE fixed value mutation message sent by the power server in communication connection through the GOOSE fixed value receiving virtual terminal.

Specifically, the intelligent local unit receives, through the GOOSE fixed value receiving virtual terminal, a GOOSE fixed value mutation message sent by a power server communicatively connected to the intelligent local unit. The intelligent local unit is in communication connection with the power server through a GOOSE fixed value virtual terminal.

And S420, executing a fixed value management operation corresponding to the GOOSE fixed value mutation message according to the GOOSE fixed value mutation message.

Specifically, the intelligent on-site unit locally configures a fixed value corresponding to the intelligent on-site unit according to the received GOOSE fixed value mutation message. The fixed value management operation corresponding to the GOOSE fixed value mutation packet may include: fixed value modification, starting new fixed value or storing the fixed value to a local database and the like.

Optionally, the intelligent local unit executes a fixed-value management operation corresponding to the GOOSE fixed-value mutation packet according to the GOOSE fixed-value mutation packet, and the fixed-value management operation may include: identifying a fixed value modification identifier matched with the intelligent local unit in the received message; if the fixed value modification identifier is in an effective state, acquiring a target fixed value matched with the intelligent on-site unit from the GOOSE fixed value mutation message; if the fixed value is inconsistent with the fixed value of the intelligent on-site unit, modifying the fixed value corresponding to the intelligent on-site unit according to the target fixed value, and constructing a GOOSE fixed value mutation message according to a modified configuration result and feeding back the GOOSE fixed value mutation message to a power server in communication connection; and if the target fixed value is consistent with the fixed value of the intelligent local unit, constructing a GOOSE fixed value heartbeat message and transmitting the GOOSE fixed value heartbeat message back to the power server in communication connection.

Specifically, the intelligent on-site unit may identify a fixed value modification identifier matched with the intelligent on-site unit in the received message; if the constant value modification identifier is identified as a valid state, for example, the constant value modification identifier is 1; the intelligent local unit obtains a target fixed value matched with the intelligent local unit from the received GOOSE fixed value mutation message, wherein the target fixed value can be any fixed value, any several fixed values or all fixed values which need to be modified in the GOOSE fixed value mutation message. If the target fixed value is inconsistent with the fixed value of the intelligent on-site unit, modifying the fixed value corresponding to the intelligent on-site unit according to the target fixed value, and constructing a GOOSE fixed value mutation message according to a modified configuration result and feeding back the GOOSE fixed value mutation message to a power server in communication connection; and if the target fixed value is consistent with the intelligent local unit fixed value, constructing a GOOSE fixed value heartbeat message and transmitting the GOOSE fixed value heartbeat message back to the power server in communication connection.

It should be noted that, if the constant value modification flag is identified as an invalid state, for example, the constant value modification flag is 0; constructing a GOOSE heartbeat message with a fixed value and transmitting the GOOSE heartbeat message back to the power server in communication connection.

In this embodiment, the intelligent on-site unit receives, through the GOOSE fixed value receiving virtual terminal, a GOOSE fixed value mutation message sent by the power server in communication connection; according to the GOOSE constant value mutation message, constant value management operation corresponding to the GOOSE constant value mutation message is executed, constant value management of the intelligent on-site unit is achieved, the intelligent on-site unit does not need to be connected to equipment except the power server, communication links are reduced, and hardware overhead is reduced.

Application scenarios

In order to better understand the embodiment of the present invention, the application scenario takes a typical 110KV substation as an example, and the embodiment of the present invention is described in more detail. Fig. 5 is a wiring diagram of a 110KV substation, which mainly includes: the intelligent local unit comprises a main transformer protection module 510, a 110KV incoming line 1 protection module 520, a 110KV incoming line 2 protection module 530, a 35KV line 1 protection module 540, a 35KV line 2 protection module 550, a 10KV line 1 protection module 560, a 10KV line 2 protection module 570 and intelligent local units LU1-LU 9. Specifically, the connection relationship between each protection module of the power server and each intelligent local unit is shown in table 3.

TABLE 3 connection relationship between power server protection module and intelligent local unit

Power server protection module	Intelligent on-site unit
		Main transformer protection module	LU2、LU3、LU4
110KV incoming line 1 protection module	LU1
		110KV incoming line 2 protection module	LU7
35KV line
	1 protection module	LU5
35KV line
	2 protection module	LU8
10KV line
	1 protection module	LU6
10KV line
	2 protection module	LU9

Further, according to table 3, after the ICD fixed value data sets of the three intelligent local units LU2, LU3 and LU4 are added to the ICD fixed value data set of the power server, GOOSE fixed value transceiving virtual terminals of the main protection module and the three intelligent local units are established according to the foregoing method, and then the connection relationship of these GOOSE fixed value transceiving virtual terminals is established in the SCD file; meanwhile, establishing the connection relation between other protection modules and the intelligent on-site unit; and finally, exporting ICD files and CCD (Charge coupled device) files of the main transformer protection device and the 9 intelligent local units, and respectively downloading the ICD files and the CCD files to corresponding devices.

Specifically, fig. 6 is a software flowchart of power server value management, wherein a power server may include any one of the protection modules in fig. 5; specifically, referring to fig. 6, it includes the following steps:

s610, is a background modify-fix command received?

Specifically, firstly, judging whether a power server receives a constant value modification command sent by a transformer substation background; if not, that is, the power server protection module does not receive the fixed value modification command, sending a GOOSE fixed value heartbeat message to an intelligent local unit connected to the power server protection module at a set time interval (for example, 5 seconds), where the GOOSE fixed value heartbeat message includes: a fixed value corresponding to the intelligent on-site unit. If yes, namely the power server protection module receives a fixed value modification command sent by the transformer substation background, the ICD fixed value data set in the local fixed value database is refreshed.

S620, is the intelligent local unit rating modified?

Specifically, if the fixed value of the power server protection module is not modified, the fixed value of the power server protection module is refreshed; if yes, refreshing GOOSE fixed value sending data and fixed value check sums of the intelligent local units, and setting a fixed value modification mark to be 1; and constructing and sending a GOOSE constant value mutation message to the intelligent on-site unit according to the constant value modification identifier and the constant value modification data set included in the constant value modification command.

S630, receiving the GOOSE fixed value message.

Specifically, the power server receives a GOOSE fixed value message fed back by the intelligent local unit.

S640, determine whether the comparison of the received and transmitted data is consistent? Specifically, the power server compares the GOOSE fixed value sending message with the GOOSE fixed value receiving message, and judges whether the two messages are consistent; if yes, namely the intelligent local unit successfully completes the constant value modification, the modification mark of the GOOSE constant value mutation message sent by the power server is set to be 0; if not, namely the intelligent local unit does not successfully finish the fixed value modification, setting a modification mark of a GOOSE fixed value mutation message sent by the power server to be 1; and if the two signals are inconsistent for a long time, reporting an alarm signal.

Specifically, FIG. 7 is a software flow diagram of intelligent in-place unit rating management; specifically, referring to fig. 7, it includes the following steps:

and S710, receiving a GOOSE constant value mutation message. Specifically, the intelligent local unit receives a module constant value mutation message sent by a power server protection module in communication connection with the intelligent local unit.

S720, whether a constant value modification mark is received or not.

Specifically, the intelligent local unit identifies a fixed value modification identifier matched with the intelligent local unit in a received message; if so, namely the fixed value modification identifier is 1, determining the received message as a GOOSE fixed value mutation message, and acquiring a target fixed value matched with the GOOSE fixed value mutation message; if the target fixed value is inconsistent with the fixed value stored in the intelligent on-site unit, locally configuring the fixed value corresponding to the intelligent on-site unit according to the target fixed value, and constructing a GOOSE fixed value mutation message according to a configuration result and transmitting the GOOSE fixed value mutation message back to a power server in communication connection; and if the target fixed value is consistent with the fixed value stored in the intelligent local unit, constructing a GOOSE fixed value heartbeat message and transmitting the GOOSE fixed value heartbeat message back to a power server protection module in communication connection. If not, namely the fixed value modification identifier is 0, constructing a GOOSE fixed value heartbeat message and feeding back the GOOSE fixed value heartbeat message to the power server in communication connection.

In the above example, the connection relationship between the power server and the intelligent on-site unit is introduced, and the power server and the fixed-value management flow of the intelligent on-site unit are explained in detail, so that the fixed-value management of the intelligent on-site unit can be realized, the power server protection module and the intelligent on-site unit do not need to be connected through a network cable, a large amount of cost is saved, and the operation is convenient.

EXAMPLE five

Fig. 8 is a schematic structural diagram of a fixed-value modeling apparatus for an intelligent in-place unit according to a fifth embodiment of the present invention, where the apparatus may perform the fixed-value modeling method for the intelligent in-place unit according to any embodiment of the present invention, and the apparatus may be implemented by software and/or hardware, and the apparatus includes: an ICD constant value data set adding module 810, a GOOSE constant value receiving and sending virtual terminal adding module 820, a connection relationship establishing module 830 and a file downloading module 840.

The ICD fixed value data set adding module 810 is configured to add ICD fixed value data sets of the intelligent local units connected to the protection modules to the fixed value database of the power server and ICD fixed value data sets of the power server respectively;

a GOOSE fixed value receiving and transmitting virtual terminal adding module 820, configured to add GOOSE fixed value receiving and transmitting virtual terminals in ICD files of the power server and each intelligent local unit respectively;

a connection relationship establishing module 830, configured to establish a connection relationship between each protection module in the power server and the intelligent on-site unit;

the file downloading module 840 is configured to export the loop instance configuration files CCD and the intelligent electronic device instance configuration files CID of the power server and each intelligent local unit, download the CCD files and the CID files to the power server and each intelligent local unit, respectively, and import the SCD files to the SCADA background.

In the embodiment, the ICD constant value data sets of the intelligent local units connected with the protection modules are respectively added into the constant value database of the power server and the ICD constant value data sets of the power server through the ICD constant value data set adding module; adding GOOSE fixed value transceiving virtual terminals in an ICD file of the power server and an ICD file of each intelligent local unit through a GOOSE fixed value transceiving virtual terminal adding module; establishing a connection relation between each protection module in the power server and the intelligent on-site unit through a connection relation establishing module; the method comprises the steps of exporting a loop instance configuration file CCD and an intelligent electronic device instance configuration file CID of a power server and each intelligent local unit through a file downloading module, downloading the CCD file and the CID file into the power server and each intelligent local unit respectively, importing the SCD file into an SCADA background, realizing constant value modeling of the intelligent local unit, establishing a connection relation between a protection module in the power server and the intelligent local unit, and preparing for constant value management of the intelligent local unit.

EXAMPLE six

Fig. 9 is a schematic structural diagram of a persistent value management apparatus of an intelligent local unit according to a sixth embodiment of the present invention, which may perform any persistent value management method of the intelligent local unit according to any embodiment of the present invention, and the apparatus may be implemented by software and/or hardware, and includes: a constant value management object recognition module 910 and a GOOSE constant value mutation message sending module 920.

The fixed value management object identification module 910 is configured to identify, when the power server receives a fixed value modification command sent by the SCADA background, a fixed value modification object matched with the fixed value management command according to a fixed value database in the power server.

A GOOSE fixed value mutation message sending module 920, configured to send, if it is determined that the fixed value management object is the target intelligent local unit in communication connection, a GOOSE fixed value mutation message matched with the fixed value modification command to the target intelligent local unit through the matched GOOSE fixed value sending virtual terminal;

the GOOSE fixed value mutation message contains all fixed values of the target intelligent local unit.

According to the scheme of the embodiment, when a fixed value modification command sent by an SCADA background is received through a fixed value management object identification module, a fixed value modification object matched with the fixed value management command is identified according to a fixed value database in an electric power server; and if the fixed-value management object is determined to be the target intelligent local unit in communication connection, transmitting a GOOSE fixed-value mutation message matched with the fixed-value modification command to the target intelligent local unit through a GOOSE fixed-value mutation message transmitting module. The intelligent on-site unit constant value management is realized, the virtual terminal is sent to the target intelligent on-site unit through the GOOSE constant value sending virtual terminal of the power server protection module, the module constant value message matched with the constant value modification command is sent to the target intelligent on-site unit, the intelligent on-site unit constant value management is realized, the intelligent on-site unit is not required to be connected to equipment except the power server, communication links are reduced, and hardware overhead is reduced.

Optionally, the fixed-value management apparatus of the intelligent local unit further includes: the GOOSE fixed value heartbeat message sending module is used for taking the GOOSE fixed value of each intelligent local unit from the fixed value database and sending the corresponding GOOSE fixed value heartbeat message to each intelligent local unit when the power server does not receive the fixed value modification command sent by the SCADA background; the GOOSE fixed value heartbeat message contains all fixed values of the corresponding intelligent local units.

Optionally, the fixed-value management object identifying module 910 is further specifically configured to compare the ICD fixed-value data sets included in the fixed-value modification command with each ICD fixed-value data set in the fixed-value database, and determine a fixed-value modification object.

And if the constant value modification object is determined to be the target protection module in the power server, modifying the constant value of the target protection module and immediately enabling.

Optionally, the GOOSE fixed-value mutation packet sending module 920 is further specifically configured to set a fixed-value modification identifier matched with the target intelligent on-site unit to an active state if it is determined that the fixed-value modification object is the target intelligent on-site unit in communication connection; and constructing and sending a GOOSE constant value mutation message according to the constant value modification identifier and the new constant value of the data set in the constant value modification command.

Optionally, the fixed-value management apparatus of the intelligent local unit further includes a receiving module, configured to receive a GOOSE fixed-value message or a GOOSE fixed-value heartbeat message returned by the target intelligent local unit; if the fixed value modification of the target intelligent on-site unit is determined to be not completed successfully according to the comparison structure of the GOOSE fixed value message and the GOOSE fixed value feedback message, the fixed value modification identification of the effective state is kept, and the GOOSE fixed value heartbeat message is continuously sent to the target intelligent on-site unit through the GOOSE fixed value sending virtual terminal; if the target intelligent local unit is determined to not successfully complete the configuration of the fixed value within the set time length, reporting an alarm signal; and if the target intelligent on-site unit successfully completes the configuration of the fixed value according to the comparison structure of the GOOSE fixed value sending message and the GOOSE fixed value returning message, setting the fixed value modification identifier of the target intelligent on-site unit to be in an invalid state.

The device for managing the fixed value of the intelligent local unit provided by the embodiment of the invention can execute the method for managing the fixed value of the intelligent local unit provided by any embodiment of the invention, and has corresponding functional modules and beneficial effects of the execution method.

EXAMPLE seven

Fig. 10 is a schematic structural diagram of a value-fixing management apparatus for an intelligent local unit according to a fifth embodiment of the present invention, which can execute any value-fixing management method for an intelligent local unit according to any embodiment of the present invention, and the apparatus can be implemented by software and/or hardware, and includes: a GOOSE fixed value message receiving module 110 and an executing module 120.

The GOOSE fixed value message receiving module 110 is configured to receive, through the GOOSE fixed value receiving virtual terminal, a GOOSE fixed value mutation message sent by the power server connected in a communication manner;

the execution module 120 is configured to execute a fixed-value management operation corresponding to the GOOSE fixed-value mutation packet according to the GOOSE fixed-value mutation packet.

According to the scheme of the embodiment, a GOOSE fixed value message receiving module receives a GOOSE fixed value message sent by a power server in communication connection; the execution module executes the constant value management operation corresponding to the GOOSE constant value mutation message according to the GOOSE constant value message, so that the constant value management of the intelligent on-site unit is realized, the intelligent on-site unit does not need to be connected to equipment except a power server, the communication link is reduced, and the hardware overhead is reduced.

Optionally, the executing module 120 is further specifically configured to identify a fixed value modification identifier matched with the intelligent on-site unit in the received message;

if the fixed value modification identifier is in an effective state, acquiring a target fixed value matched with the intelligent on-site unit from the GOOSE fixed value mutation message; if the target fixed value is inconsistent with the fixed value of the intelligent on-site unit, modifying the fixed value corresponding to the intelligent on-site unit according to the target fixed value, and constructing a GOOSE fixed value mutation message according to a modified configuration result and feeding back the GOOSE fixed value mutation message to a power server in communication connection; and if the target fixed value is consistent with the fixed value of the intelligent local unit, constructing a GOOSE fixed value heartbeat message and transmitting the GOOSE fixed value heartbeat message back to the power server in communication connection.

Example eight

Fig. 11 is a schematic structural diagram of a power server according to a sixth embodiment of the present invention, and as shown in fig. 11, the power server includes a processor 110, a memory 111, an input device 112, and an output device 113; the number of the processors 110 in the power server may be one or more, and one processor 110 is taken as an example in fig. 11; the processor 110, the memory 111, the input device 112, and the output device 113 in the power server may be connected by a bus or other means, and the connection by the bus is exemplified in fig. 11.

Memory 111, which is a computer-readable storage medium, may be used to store software programs, computer-executable programs, and modules, such as the program command/module corresponding to the fixed-value modeling method of the intelligent local unit or the fixed-value management method of the intelligent local unit in the embodiments of the present invention (e.g., the fixed-value management object recognition module 710 and the GOOSE fixed-value mutation messaging module 720 in the fixed-value management apparatus of the intelligent local unit), or program commands/modules corresponding to the fixed value management method of the intelligent local unit (for example, the ICD fixed value data set adding module 810, GOOSE fixed value receiving and sending virtual terminal adding module 820, connection relation establishing module 830 and file downloading module 840 in the fixed value modeling device of the intelligent local unit, or the GOOSE fixed value message receiving module 810 and execution module 820 in the fixed value management device of the intelligent local unit) in the embodiment of the present invention. The processor 110 executes various functional applications of the power server and data processing, i.e., implements the above-described constant value modeling method of the intelligent on-site unit or the constant value management method of the intelligent on-site unit, by executing software programs, commands, and modules stored in the memory 111.

The memory 111 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to the use of the terminal, and the like. Further, the memory 111 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device. In some examples, the memory 111 may further include memory located remotely from the processor 110, which may be connected to a power server over a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.

The input device 112 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the power server. The output device 113 may include a display device such as a display screen.

Example nine

An embodiment of the present invention further provides a storage medium containing computer-executable instructions, which when executed by a computer processor, perform a method for fixed value modeling of intelligent in-place units, the method comprising:

adding GOOSE constant value receiving and transmitting virtual terminals in ICD files of the power server and each intelligent local unit respectively;

establishing a connection relation between each protection module in the power server and the intelligent local unit;

and exporting a loop instance configuration file CCD and an intelligent electronic device instance configuration file CID of the power server and each intelligent local unit, downloading the CCD file and the CID file into the power server and each intelligent local unit respectively, and importing the SCD file into an SCADA background.

Or, the fixed value management method of the intelligent local unit comprises the following steps:

when the power server receives a fixed value modification command sent by an SCADA background, identifying a fixed value modification object matched with the fixed value management command according to a fixed value database in the power server;

if the fixed value management object is determined to be a target intelligent on-site unit in communication connection, sending a GOOSE fixed value mutation message matched with the fixed value modification command to the target intelligent on-site unit through the matched GOOSE fixed value sending virtual terminal;

Or the intelligent local unit receives a GOOSE fixed value mutation message sent by a power server in communication connection through the GOOSE fixed value receiving virtual terminal;

and executing the constant value management operation corresponding to the GOOSE constant value mutation message according to the GOOSE constant value mutation message.

Of course, the storage medium containing the computer-executable commands provided by the embodiments of the present invention is not limited to the method operations described above, and may also perform related operations in the method for modeling the fixed value of the intelligent in-place unit or the method for managing the fixed value of the intelligent in-place unit provided by any embodiments of the present invention.

From the above description of the embodiments, it is obvious for those skilled in the art that the present invention can be implemented by software and necessary general hardware, and certainly, can also be implemented by hardware, but the former is a better embodiment in many cases. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which can be stored in a computer-readable storage medium, such as a floppy disk, a ROM (Read-Only Memory), a RAM (Random Access Memory), a FLASH, a hard disk, an optical disk, or the like of a computer, and includes commands for enabling a power server (which may be a personal computer, a server, or a network device) to execute the methods according to the embodiments of the present invention.

It should be noted that, in the above-mentioned embodiment of the fixed-value modeling apparatus for an intelligent local unit or the fixed-value management apparatus for an intelligent local unit, each included unit and module are only divided according to functional logic, but are not limited to the above division as long as the corresponding functions can be implemented; in addition, specific names of the functional units are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present invention.

It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A value management system for an intelligent local unit, comprising: the system comprises a data acquisition and monitoring control System (SCADA) background, a power server comprising a plurality of protection modules and a plurality of intelligent on-site units;

the power server is connected with the SCADA background, and a protection module of the power server is in communication connection with the intelligent on-site unit through a pre-configured generic object-oriented substation event GOOSE fixed value receiving and sending virtual terminal;

the SCADA background is used for describing an ICD (interface control document) constant value data set according to a constant value database in the power server and the intelligent power device capacity of the power server, and managing the constant value of the power server and the constant value of the intelligent local unit connected with each protection module of the power server; the fixed value database of the power server and the ICD fixed value data sets of the power server respectively comprise ICD fixed value data sets of intelligent local units connected with the protection modules.

2. The intelligent on-site unit value management system of claim 1,

the SCADA background is used for sending a fixed value management command to the power server according to a fixed value database in the power server and an ICD fixed value data set of the power server;

the power server is further used for identifying a constant value modification object matched with the received constant value modification command according to the constant value database when the received constant value management command is determined to be the constant value modification command; if the fixed value modification object is determined to be one or more target intelligent local units in communication connection, sending a GOOSE fixed value mutation message matched with the fixed value modification command to the target intelligent local units through the matched GOOSE fixed value sending virtual terminal;

the power server is further used for extracting the fixed values of the power server and the intelligent local units from the fixed value database and uploading the fixed values to the SCADA background when the received fixed value management command is determined to be a fixed value query command;

and the intelligent local unit executes the constant value management operation corresponding to the GOOSE constant value mutation message when receiving the GOOSE constant value mutation message through the GOOSE constant value receiving virtual terminal.

3. A method for fixed value modeling of an intelligent on-site unit, comprising:

adding GOOSE fixed value transceiving virtual terminals in the ICD file of the power server and the ICD file of each intelligent local unit respectively;

and exporting a loop instance configuration file CCD and an intelligent electronic device instance configuration file CID of the power server and each intelligent local unit, and downloading the CCD file and the CID file into the power server and each intelligent local unit respectively.

4. The method of claim 3, wherein adding the ICD rating data sets of the intelligent on-site units connected to the protection modules to the power server's rating database and ICD file comprises:

for a single-interval protection module, adding a constant value data set of the intelligent on-site unit connected with the single-interval protection module into the constant value data set of the single-interval protection module;

and for the multi-interval protection module, merging the constant value data sets of each intelligent local unit connected with the multi-interval protection module and then adding the merged constant value data sets into the constant value data sets of the multi-interval protection module.

5. A method for constant value management of intelligent local units is characterized in that a constant value database of a power server and an ICD constant value data set of the power server respectively comprise ICD constant value data sets of the intelligent local units connected with protection modules, and the method comprises the following steps:

when the power server receives a constant value modification command sent by an SCADA background, identifying a constant value modification object matched with the constant value management command according to a constant value database in the power server;

if the fixed value management object is determined to be a target intelligent local unit in communication connection, sending a GOOSE fixed value mutation message matched with the fixed value modification command to the target intelligent local unit through a matched GOOSE fixed value sending virtual terminal;

6. The method of claim 5, further comprising:

when the power server does not receive a fixed value modification command sent by the SCADA background, the GOOSE fixed value of each intelligent local unit is taken out from the fixed value database, and corresponding GOOSE fixed value heartbeat messages are sent to each intelligent local unit;

the GOOSE fixed value heartbeat message contains all fixed values of corresponding intelligent local units.

7. The method of claim 5, wherein the power server, upon receiving the fixed value modification command, identifies a fixed value modification object matching the fixed value modification command, comprising:

comparing the ICD fixed value data set contained in the fixed value modification command with each ICD fixed value data set in the fixed value database to determine the fixed value modification object.

8. The method according to claim 5, wherein if it is determined that the fixed-value modification object is a target intelligent local unit of a communication connection, sending a GOOSE fixed-value mutation message matching the fixed-value modification command to the target intelligent local unit through a GOOSE fixed-value sending virtual terminal, specifically comprising:

if the fixed value modification object is determined to be a target intelligent on-site unit in communication connection, the GOOSE sending data and the fixed value checksum of the target intelligent on-site unit are refreshed, and a fixed value modification identifier matched with the target intelligent on-site unit is set to be in an effective state;

and constructing and sending the GOOSE constant value mutation message according to the constant value modification identifier and the new constant value of the data set in the constant value modification command.

9. The method of claim 5, wherein after sending a GOOSE-valued mutation message matching the fixed-value modification command to the target intelligent local unit via the matching GOOSE-valued sending virtual terminal, further comprising:

receiving a GOOSE constant value message returned by the target intelligent local unit;

if the target intelligent on-site unit does not successfully finish the fixed value modification according to the comparison result of the GOOSE fixed value sending message and the GOOSE fixed value returning message, keeping the fixed value modification identification of the effective state in the GOOSE fixed value sending message, and continuously sending a GOOSE fixed value heartbeat message to the target intelligent on-site unit through a GOOSE fixed value sending virtual terminal;

if the target intelligent local unit is determined to not successfully complete the configuration of the fixed value within the set time length, reporting an alarm signal;

and if the target intelligent on-site unit successfully completes the configuration of the fixed value according to the comparison result of the GOOSE fixed value sending message and the GOOSE fixed value returning message, setting the fixed value modification identifier of the target intelligent on-site unit to be in an invalid state.

10. A method for value management of an intelligent local unit, wherein a value database of a power server and ICD value datasets of the power server each include an ICD value dataset of the intelligent local unit connected to each protection module, the method comprising:

identifying a fixed value modification identifier matched with the intelligent local unit in the received message;

if the fixed value modification identifier is in an effective state, acquiring a target fixed value matched with the intelligent on-site unit from the GOOSE fixed value mutation message;

if the target fixed value is inconsistent with the fixed value of the intelligent on-site unit, modifying the fixed value corresponding to the intelligent on-site unit according to the target fixed value, and constructing a GOOSE fixed value mutation message according to a modified configuration result and feeding back the GOOSE fixed value mutation message to a power server in communication connection;

and if the target fixed value is consistent with the intelligent local unit fixed value, constructing a GOOSE fixed value heartbeat message and transmitting the GOOSE fixed value heartbeat message back to a power server in communication connection.

11. A power server comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor when executing the program implements the intelligent on-site unit rating modeling method of claim 3 or 4, the intelligent on-site unit rating management method of any of claims 5-9 or 10.

12. A computer-readable storage medium, on which a computer program is stored, which program, when being executed by a processor, is adapted to carry out the intelligent in-place unit rating modeling method of claim 3 or 4, the intelligent in-place unit rating management method of any one of claims 5 to 9 or 10.