CN211428996U

CN211428996U - Information, networking and intelligent power control system

Info

Publication number: CN211428996U
Application number: CN201922000958.1U
Authority: CN
Inventors: 周雄
Original assignee: Wuhan Xigao Electric Appliance Co ltd
Current assignee: Wuhan Xigao Electric Appliance Co ltd
Priority date: 2019-11-19
Filing date: 2019-11-19
Publication date: 2020-09-04
Anticipated expiration: 2029-11-19

Abstract

The utility model discloses a based on informationization, networking and intelligent power control system relates to transformer substation technical field, including transformer substation layer, wall and process layer, the transformer substation layer includes that system server holds concurrently operation panel one, system server holds concurrently two, workstation one, workstation two, monitor terminal, information management terminal and linkage server. The informationized, networked and intelligent power control system adopts a centralized screen assembly mode, high-low voltage switch equipment, a distribution transformer and a power distribution device are provided with a protection monitoring device according to requirements, the protection monitoring device is installed on a protection screen in a centralized mode, the protection screen is provided with a computer to complete man-machine interaction, meanwhile, a communication system is connected with a regional dispatching center, remote centralized control and monitoring are conducted on equipment in a station, remote monitoring is achieved, and functions of automatic positioning of a fault section, fault removal, load transfer, network reconfiguration and the like can be completed under the cooperation of specific autonomous software.

Description

Information, networking and intelligent power control system

Technical Field

The utility model relates to a transformer substation technical field specifically is a based on informationization, networking and intelligent power control system.

Background

The intellectualization of an electric power system is being vigorously developed in China, the high-voltage transformer substation is used as an important ring of power transmission and distribution, and the comprehensive performances of safety, reliability, intellectualization, operation maintenance and the like are particularly important for improving the overall technical indexes of the electric power system. However, it is difficult for the existing information, networking and intelligent power control system to perform intelligent management on the power equipment and intelligent operation of the power system, and for this reason, an information, networking and intelligent power control system capable of performing intelligent management on the power equipment is provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a based on informationization, networking and intelligent power control system, can carry out intelligent management to power equipment, guaranteed power system's normal operating.

The utility model discloses a solve above-mentioned technical problem, provide following technical scheme: the utility model provides a based on informationization, networking and intelligent electric control system, includes transformer substation layer, wall and process layer, transformer substation layer includes that system server holds concurrently and operates platform one, system server holds concurrently and operates two, workstation one, workstation two, monitoring terminal, information management terminal and linkage server, transformer substation layer carries out network interactive connection through transformer substation layer network and wall, transformer substation layer equipment includes transformer substation's local operation backstage system, external data interaction interface (control center data forwarding, protection information management system data interface, equipment management system) and general function service etc. general function service module realizes transformer substation level cross compartment's control service through the information that wall equipment conveys, like prevent mistake transformer substation's blocking function, voltage reactive power control, also can receive the order that comes from the control center and realize regional system prevents mistake operation, prevent mistake operation, the transformer substation level cross compartment's control service, The system comprises a spacer layer, a spacer layer bus, a spacer layer, a primary device, a secondary device and a power supply, wherein the spacer layer comprises protection measurement and control, fault recording, electric energy metering and other intelligent devices, the spacer layer is in network interactive connection with a process layer through the process layer network, the spacer layer mainly realizes protection and monitoring functions and realizes related man-machine interaction functions of control locking and spacer level information, the spacer layer device can realize mutual conversation mechanism among devices through the spacer layer bus, the spacer layer device can be intensively assembled or locally released, the process layer comprises a merging unit, an electronic transformer, an intelligent unit and a switch device, the layer is directly connected with a sensor signal, a state signal interface and an actuator of the primary device, the device can be locally installed together with the primary device, and digitalization of the working state and the device attribute of the primary device of electric power is realized through the merging unit and, the process layer equipment is connected with the spacer layer equipment through a process layer bus, a system synchronous clock signal is generated through a GPS time signal, and the process layer equipment, the spacer layer equipment and the transformer substation layer equipment are connected through a process layer network and a transformer substation layer network based on an informationized, networked and intelligent electric control system.

Furthermore, the monitoring terminal comprises a signal sensor, a state signal interface, an actuator and a measurement and control device.

Further, the substation level includes background and advanced applications.

Furthermore, the substation layer network comprises an MMS/GOOSE network, the functions and the structure of the substation layer network are basically similar to those of a monitoring network of a traditional substation, and the functions of gathering information of the whole substation, preventing misoperation and locking and the like are realized by communication through the MMS/GOOSE network.

Further, the process layer network is divided into an SMV sampling value network and a GOOSE network, the process layer network is divided into the SMV sampling value network and the GOOSE network, the main function of the SMV sampling value network is to upload current and voltage alternating current, the main function of the SMV sampling value network is to upload switching value and downlink switching-on and switching-off control quantity, and data flow on the process layer communication network can be divided into the following parts according to different functions: the merging unit periodically sends sampling value messages to the intelligent electronic equipment; the intelligent switch cabinet periodically sends a transformer substation event message facing a general object, namely a switching value input message, to the IED; GOOSE messages, namely switching value output messages, sent by the IED to the ISG comprise switching on and switching off of a switch, switching on and off of equipment, adjustment of a tap, gear switching and the like; simple network time protocol or IEEE1588 time synchronization message.

Furthermore, the protection measurement and control comprises a measurement and control device and a protection device, and the fault recording comprises fault recording and network analysis.

Furthermore, the process layer specifically refers to an electronic transformer, high-low voltage equipment, an intelligent terminal and a merging unit.

Compared with the prior art, the information, networking and intelligent power control system has the following beneficial effects:

1. the utility model discloses "two nets" based on informationization, networking and intelligent electric control system all adopt two star topology, realize the redundancy of network through two star structures, stability and the security with this assurance system, simultaneously do not lose information transfer's rapidity again, the not enough of star topology has been remedied, based on informationization, networking and intelligent electric control system adopt concentrated group screen mode, with high-low voltage switchgear, distribution transformer and distribution device are equipped with protection monitoring device as required, install on the protection screen in a centralized manner, protection screen is equipped with the computer and is accomplished man-machine interaction, possess communication system simultaneously and be connected with regional dispatch center, carry out distant centralized control and control to the station interior equipment, realize remote monitoring, under specific autonomic software cooperation, can accomplish trouble district section automatic positioning, the trouble excision, load changes area, The intelligent power control system can also be provided with an energy consumption monitoring system to detect regional power distribution energy consumption based on informatization, networking and intelligent power control systems, and uploads the energy consumption to a regional dispatching center in a data set, so that the energy consumption of each position in a region can be conveniently and intensively analyzed, and the electric energy and the energy can be reasonably configured.

Drawings

FIG. 1 is a flow chart of the power control system based on informatization, networking and intelligence;

fig. 2 is the utility model discloses based on informationization, networking and intelligent power control system structure chart.

In the figure: 1-an electronic transformer; 2-high and low voltage equipment; 3, an intelligent terminal; 4-a merging unit; 5-a measurement and control device; 6-a protection device; 7-fault recording and network analysis; 8-background; 9-advanced applications.

Detailed Description

Referring to fig. 1-2, the present invention provides a technical solution: a power control system based on informatization, networking and intelligence comprises a transformer substation layer, a spacer layer and a process layer, wherein the transformer substation layer comprises a system server and a first operation platform, a system server and a second operation platform, a first work station, a second work station, a monitoring terminal, an information management terminal and a linkage server, the monitoring terminal comprises a signal sensor, a state signal interface, an actuator and a measurement and control device, the transformer substation layer is in network interactive connection with the spacer layer through a transformer substation layer network, the transformer substation layer comprises a background and a high-level application, transformer substation layer equipment comprises a transformer substation on-site operation background system, an external data interaction interface (control center data forwarding, protection information management system data interface, equipment management system) and a universal function service, and the like, the universal function service module realizes the control service of the transformer substation level across the spacer through the information transmitted by the spacer layer equipment, if transformer substation prevents mistake blocking function, voltage reactive control, also can receive the order that comes from control center and realize functions such as regional system prevents maloperation, regional safety and stability control and regional voltage reactive optimization control, the wall includes protection measurement and control, trouble record ripples, electric energy measurement and other smart machine, the wall carries out network interactive connection through process layer network and process layer, and protection measurement and control includes measurement and control device 5 and protection device 6, because intelligent terminal has undertaken the function of part measurement and control, like the processing of on-off state information for measurement and control device 5 has taken place some changes in the function: leading in the linkage/locking logic of the process layer equipment through a configuration tool to realize the logic locking of the process layer equipment by the spacer layer; and adding a network module. Information exchange between a station control layer and a process layer is completed through different network modules, a protection principle is firstly kept unchanged by the protection device 6, and because intelligent devices in an information, networking and intelligent power control system are connected through optical fibers and current/voltage is sampled through the electronic transformer 1, the protection device 6 can realize protection logic connection through sharing and exchanging process layer data, thereby replacing an electric loop in a traditional transformer substation, fault recording comprises fault recording and network analysis 7 which are based on equipment unique to the information, networking and intelligent power control system, analysis records combining network analysis and fault recording are generated by extending functions of the fault recording device, and the protection device is different from a recording device in the traditional transformer substation and only records waveforms before and after the fault occurs, the network analysis and fault recording device in the intelligent substation can monitor and analyze network messages in real time, the network, equipment information and fault reasons at present or during fault can be known more thoroughly and intuitively through a human-computer interface, the state information and waveforms are recorded by utilizing the function of the wave recording device to form the basis required by analyzing the accident of the substation, the spacer layer equipment mainly realizes the protection and monitoring functions and the related human-computer interaction functions of controlling locking and spacing level information, the spacer layer equipment can realize a mutual interaction mechanism among the equipment through a spacer layer bus, the spacer layer equipment can be intensively assembled into a screen or put down on the spot, the process layer comprises a merging unit, an electronic transformer, an intelligent unit and a switch device, the process layer specifically comprises the electronic transformer 1, high-low voltage equipment 2, an intelligent terminal 3 and the merging unit 4, and the application of the electronic transformer 1 is an important mark of the intelligent substation, the appearance of the technology promotes the engineering of an intelligent substation, the high-voltage side part and the medium-voltage side part of the system adopt an electronic current transformer/an electronic voltage transformer which are formed by Rogowski coil and capacitance voltage division principle, the transformer outputs millivolt-level analog signals to a remote end module, the remote end module carries out analog quantity/digital quantity conversion, an IEC61850-44-8 protocol is applied to output optical signals to a merging unit 4, a miniature current transformer with a core is adopted at the low-voltage side, 150mV protection signals and 4V measurement signals are output to a collector, the optical signals are output to the low-voltage side merging unit through an acquisition card integrated in the collector, the merging unit 4 is mainly used for connecting an electronic transformer 1 (remote end module) with intelligent output, a protection device 6 and a measurement and control device 5, the main function is to synchronously acquire multi-path ECT/EVT output digital signals, the sampling measurement information is sent to intelligent electronic equipment such as a protection device 6, a measurement and control device 5 and the like according to a specified format, and a merging unit 4 mainly needs to meet 3 functional requirements during design: synchronization, multi-path data processing and communication, the system performs unified time synchronization on the merging unit 4 through a time synchronization network, and transmits sampling measurement values by adopting an Ethernet communication mode according to an IEC61850-9-2 protocol. Because the sampling information needs to be sent in real time and in a circulating way, in order to ensure the correctness and the effectiveness of the sampling measurement information, the protection device 6 and the measurement and control device 5 directly carry out sampling through the merging unit 4, a mode of network transmission of the sampling measurement value is not adopted, the remote module, the merging unit 4, the protection device 6 and the measurement and control device 5 are subjected to redundant configuration in corresponding intervals to realize information redundancy and ensure the integrity and the effectiveness of the sampling measurement information, the layer is directly connected with a sensor signal and a state signal interface of primary equipment, the layer of equipment can be installed on site together with the primary equipment, the digitization of the working state and the equipment attribute of the primary equipment of electric power is realized through the merging unit and the intelligent unit, the process layer of equipment is connected with the interlayer of equipment through a process layer bus and generates a system synchronous clock signal through a GPS time service signal, based on the informationization, networking and intelligent power control system, the process layer network and the transformer substation layer network are connected with the process layer, the bay layer and the transformer substation layer equipment, and the intelligent terminal 3 is designed and manufactured by adopting a modularized microprocessor, has the functions of a traditional operation box, and also has the capabilities of processing and sending I/O information, so the intelligent operation box is also called as an intelligent operation box. The intelligent terminal 3 and the control cubicle form an intelligent component cubicle in a switch yard, the intelligent terminal 3 collects the switching value, processes and completes the operation control of the high-low voltage equipment 2 at the interval layer, and because the network transmission quality problems such as network delay and the like exist in the process of transmitting the trip message through the network, the system adopts a 'direct-jump' mode, namely, the trip information is protected from being transmitted through the network, and the protection device 6 directly sends a command signal to the intelligent terminal 3. And information with low real-time performance, such as remote control operation, alarm, on-off state and the like, is exchanged through the network.

The transformer substation level network includes MMS/GOOSE network, function and structure are similar basically with the monitoring network of traditional transformer substation, rely on MMS/GOOSE to communicate, realize functions such as the gathering of total station information and prevent mistake shutting, the process level network divide into SMV sampling value network and GOOSE network, the main function of the former is to realize the upload of electric current, voltage traffic volume, the latter's main function is to realize the upload of switching value and divide-shut brake control volume down, the dataflow on the process level communication network can divide into according to the difference of function: the merging unit 4 periodically sends sampling value messages to the intelligent electronic equipment; the intelligent switch cabinet periodically sends a transformer substation event message facing a general object, namely a switching value input message, to the IED; GOOSE messages, namely switching value output messages, sent by the IED to the ISG comprise switching on and switching off of a switch, switching on and off of equipment, adjustment of a tap, gear switching and the like; simple network time protocol or IEEE1588 time synchronization message.

Process layer functions refer to all functions of a process interface, devices are typically input/output, smart sensors and controllers connected to a remote process interface, such as a process bus, and the process layer is developed with the development of primary and secondary device technologies and network technologies, and this logical layering is not available in conventional stations. The process layer equipment mainly comprises an unconventional mutual inductor, an intelligent unit, gas totally-enclosed combined electric device, high-low voltage switch equipment and the like, wherein the spacer layer mainly has the functions of: summarizing the real-time data information of the interval process layer; implementing a protection control function for the primary equipment; implementing the interval operation locking function; implementing operational synchronization and other control functions; the priority control is provided for the data acquisition, the statistical operation and the control command; the method comprises the following steps of executing a data communication transmission function of starting and stopping, and simultaneously telling that the network communication function with a process layer and a transformer substation layer is completed, wherein the station control layer has two types of functions: "process-related" substation level functions, i.e. using data from a plurality of bays or total stations, and monitoring and controlling primary equipment from a plurality of bays or total stations; the interface is related to the function of a substation layer, which represents the interface between an automatic system of the substation and an operator of the substation, the interface between the automatic system of the substation and a remote control center, the interface between the automatic system of the substation and a remote engineering management interface for monitoring and maintaining, the device in the substation layer comprises a station level computer provided with a database, an operation place, a remote communication interface and the like, the configuration of a station control layer device is similar to that of a traditional station, wherein advanced applications 9 are newly appeared, and the interface mainly comprises the functions of sequential control and the like integrated in a background 8, and the functions of state maintenance and the like integrated in an online monitoring system.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The utility model provides a based on informationization, networking and intelligent electric control system, includes transformer substation layer, wall and process layer, its characterized in that: the transformer substation layer comprises a system server and an operation platform I, a system server and an operation platform II, a working station I, a working station II, a monitoring terminal, an information management terminal and a linkage server, the transformer substation layer is in network interactive connection with the spacer layer through a transformer substation layer network, the spacer layer comprises protection measurement and control, fault recording and electric energy metering, the spacer layer is in network interactive connection with the process layer through a process layer network, and the process layer comprises a merging unit, an electronic transformer, an intelligent unit and a switch device.

2. The informatization-based, networked, and intelligent power control system of claim 1, wherein: the monitoring terminal comprises a signal sensor, a state signal interface, an actuator and a measurement and control device.

3. The informatization-based, networked, and intelligent power control system of claim 1, wherein: the substation layer network comprises an MMS/GOOSE network.

4. The informatization-based, networked, and intelligent power control system of claim 1, wherein: the process layer network is divided into an SMV sampling value network and a GOOSE network.

5. The informatization-based, networked, and intelligent power control system of claim 1, wherein: the protection measurement and control device comprises a measurement and control device (5) and a protection device (6), and the fault recording comprises fault recording and network analysis (7).

6. The informatization-based, networked, and intelligent power control system of claim 1, wherein: the process layer specifically refers to an electronic transformer (1), high-low voltage equipment (2), an intelligent terminal (3) and a merging unit (4).