CN111900803A - Recursive remote backup power automatic switching method and device based on GOOSE communication - Google Patents
Recursive remote backup power automatic switching method and device based on GOOSE communication Download PDFInfo
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00001—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by the display of information or by user interaction, e.g. supervisory control and data acquisition systems [SCADA] or graphical user interfaces [GUI]
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
- H02J13/00022—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using wireless data transmission
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00032—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for
- H02J13/00034—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for the elements or equipment being or involving an electric power substation
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/068—Electronic means for switching from one power supply to another power supply, e.g. to avoid parallel connection
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Computer Networks & Wireless Communication (AREA)
- Human Computer Interaction (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The invention provides a recursive remote backup power automatic switching method based on GOOSE communication, which comprises the following steps: s1, configuring a special GOOSE communication board card for carrying out GOOSE communication with an adjacent device; s2, the GOOSE channel information only transmits necessary remote spare power automatic switching information; and S3, intelligently recognizing the open-loop point position and the main supply switch position before charging and fully charging the backup switching mode meeting the operation mode according to the switching value information transmitted by the GOOSE channel and the information acquired by the station device, and preparing for the next backup switching device action. According to the invention, the switching value information of adjacent stations transmitted by the GOOSE channel and the logic of the backup power automatic switching software adopt a recursive principle, so that the function that a plurality of power supplies under the power supply of a series-supply section are mutually standby can be realized, the voltage loss risk of a transformer substation is reduced, the power supply reliability is provided, and in use, by applying a new technology, the communication is reliable, the wiring is simple, the power supply reliability is improved, the market prospect is wide, and the popularization value is high.
Description
Technical Field
The invention relates to the technical field of secondary equipment of intelligent substations, in particular to a recursive remote spare power automatic switching method and a recursive remote spare power automatic switching device based on GOOSE communication.
Background
With the popularization and application of the IEC61850 communication protocol technology, the appearance, application and development of remote spare power automatic switching equipment are promoted. Because the requirement on the reliability of power supply is higher and higher, the power supply system is provided with a multi-loop power supply circuit with two or more loops, and a standby incoming line automatic switching device is installed to improve the reliability. The automatic spare power switching device is used for automatic switching of spare incoming lines, and the remote automatic spare power switching device realizes communication between the automatic spare power switching devices and intelligently judges and coordinates automatic switching of the incoming lines.
The communication in the intelligent substation mostly adopts DL/T860 standard, and the information of the protection analog quantity (analog quantity collected by protection and analog quantity for protecting the online monitoring state of the intelligent substation), the switching value, the pressing plate state, the alarm, the action event, the fault quantity, the recording file, the fixed value and the like can be obtained through the standard DL/T860 communication, and the information is mostly contained in an MMS message. An IEC61850 protocol is uniformly used among protection equipment of the intelligent substation, signals are transmitted in a digital signal form based on network transmission, SV messages mainly transmit sampling values, and GOOSE messages mainly transmit data such as switching values, integer values and floating point values. The remote spare power automatic switching device transmits current switching value information through GOOSE communication between the devices, and the function of completing the remote spare power automatic switching of the section by matching with the adjacent side device is achieved.
With the change of a power supply mode of a power grid, a power grid substation with a voltage level of 110kV and 35kV generally adopts a two-station, three-station or even multi-station series power supply mode, as shown in fig. 1, under the series power supply mode shown in fig. 1, if each station is configured with a conventional backup automatic switching device, if a permanent fault occurs at point K3, circuit breakers at two sides of an L3 tie line will be tripped, power of the substations 1 and 2 is lost, the conventional incoming backup switching scheme only trips 2DL to 1DL, and finally the substation 1 can recover power supply, but the substation 2 cannot recover power supply. Through the analysis, the conventional backup power automatic switching device cannot solve the problem of multi-station power loss, and the logic scheme and the configuration of the backup power automatic switching device in the serial supply mode are considered from the whole situation of a power grid, so that a device with a remote backup power automatic switching function scheme needs to be configured.
Disclosure of Invention
The invention aims to provide a recursive remote backup power automatic switching method and a recursive remote backup power automatic switching device based on GOOSE communication.
In order to achieve the purpose, the invention is realized by the following technical scheme: a recursive remote backup power automatic switching method based on GOOSE communication comprises the following steps:
and S1, configuring a special GOOSE communication board card for carrying out GOOSE communication with an adjacent device.
And S2, GOOSE channel information only transmits necessary remote spare power automatic switching information.
And S3, intelligently recognizing the open-loop point position and the main supply switch position before charging and fully charging the backup switching mode meeting the operation mode according to the switching value information transmitted by the GOOSE channel and the information acquired by the station device, and preparing for the next backup switching device action.
And S4, when the voltage of the fault station is lost, the fault station operates in a mode of fully charging the spare power switching device of S3, and the fault station gradually transmits a 'distant spare power switching starting signal' to the open-loop point device according to a pushing principle.
And S5, sequentially recurringly opening the ring point switches by the ring point opening device according to the voltage loss condition of the station, and closing the main supply switch which is just opened after receiving the 'standby signal from the beginning'.
And S6, after the device of the non-open loop point receives the 'standby signal from the beginning of the distance', closing the main power supply switch which is just opened, and recovering power supply step by step until the last-stage station.
Further, in the operation step according to S1, networking or "peer-to-peer" transmission is supported over the communication transmission means.
Further, in the operation step according to S2, both sides open the ring spot information, the start-up backup information.
A push-type remote automatic backup power switching device based on GOOSE communication comprises a three-terminal automatic backup power switching configuration system, wherein the three-terminal automatic backup power switching configuration system comprises a first automatic backup power switching device, a second automatic backup power switching device and a third automatic backup power switching device.
Further, the first backup power automatic switching device comprises a TX connector module and an RX connector module, the second backup power automatic switching device comprises two TX connector modules and two RX connector modules, and the third backup power automatic switching device comprises a TX connector module and an RX connector module.
Further, the output end of the first spare power automatic switching device is in bidirectional connection with the input end of the second spare power automatic switching device through a wireless area network, and the output end of the second spare power automatic switching device is in bidirectional connection with the input end of the third spare power automatic switching device through the wireless area network.
The invention provides a recursive remote backup power automatic switching method and device based on GOOSE communication. The method has the following beneficial effects:
in the invention: according to the technical scheme, switching value information of adjacent stations transmitted through the GOOSE channel and the logic of the spare power automatic switching software adopt a recursive principle, the function that a plurality of power supplies under the power supply of a series supply section are mutually standby can be realized, the voltage loss risk of a transformer substation is reduced, the power supply reliability is provided, in use, by applying a new technology, the communication is reliable, the wiring is simple, the power supply reliability is improved, the market prospect is wide, and the popularization value is high.
Description of the drawings:
fig. 1 is a standby power supply diagram of the series power supply system of the present invention;
FIG. 2 is a schematic diagram of the recursive principle of the present invention;
FIG. 3 is a GOOSE message exchange diagram of the present invention;
FIG. 4 is a general flow chart of the present invention;
fig. 5 is a block diagram of the system of the present invention.
Detailed Description
The invention is illustrated below with reference to specific examples. It will be understood by those skilled in the art that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention in any way.
Example 1: referring to FIGS. 2-5: a recursive remote backup power automatic switching method based on GOOSE communication comprises the following steps:
the method comprises the following steps: each device in the scheme is provided with a special GOOSE communication board card for GOOSE communication with an adjacent device, and networking or point-to-point transmission is supported in a communication transmission mode.
Step two: the GOOSE channel information only transmits necessary remote spare power automatic switching information: information of open loop points at two sides and information of starting remote backup switch.
Step three: according to the switching value information transmitted by the GOOSE channel and the information collected by the station device, the device intelligently identifies the position of an open-loop point and the position of a main power supply switch before charging, fully charges a standby switching mode meeting the operation mode, and prepares for the action of the standby switching device on the next step.
Step four: and when the fault station is in voltage loss, the fault station acts in the mode of full charging of the spare power switching device in the step three, and sends a 'starting remote spare power switching signal' to the open-loop point device step by step according to the recursive principle.
Step five: the open loop point device sequentially recurs open loop point switches according to the voltage loss condition of the station, and closes the main supply switch which is just opened after receiving the 'standby signal from the remote place'.
Step six: and after the device of the non-open loop point receives the 'standby signal at the beginning of the distance', the main power supply switch which is just opened is closed, and power supply is recovered step by step until the last station.
And finally finishing the action process of the whole remote spare power automatic switching scheme according to the condition of the step six.
A push-type remote spare power automatic switching device based on GOOSE communication comprises a three-terminal spare power automatic switching configuration system, wherein the three-terminal spare power automatic switching configuration system comprises a first spare power automatic switching device, a second spare power automatic switching device and a third spare power automatic switching device, 5 spare power automatic switching modes are designed in the scheme, each spare power automatic switching mode comprises a local spare power automatic switching function and a remote spare power automatic switching function, the device is compatible with the traditional spare power automatic switching function and has an intelligent identification function, the position of an open loop point and the position of a main power supply switch of each station can be identified by the device before charging, and the device can be flexibly identified according to the operation mode; the cable can adapt to various main wiring forms under a series supply section, and has a segmented acceleration protection function, a series cutting function, an overload load shedding function and the like.
Specifically, the first spare power automatic switching device comprises a TX connector module and an RX connector module, the second spare power automatic switching device comprises two TX connector modules and two RX connector modules, the third spare power automatic switching device comprises a TX connector module and an RX connector module, a hardware system of the scheme is a special GOOSE board card, communication with an adjacent side device is achieved, and GOOSE information can be displayed on a device liquid crystal.
Specifically, the output end of the first backup power automatic switching device is in bidirectional connection with the input end of the second backup power automatic switching device through a wireless local area network, the output end of the second backup power automatic switching device is in bidirectional connection with the input end of the third backup power automatic switching device through the wireless local area network, and the action process of the backup power automatic switching software logic scheme under the serial supply section is an action mode of carrying out recursive step-by-step information transmission and recursive step-by-step combination based on GOOSE communication.
Simulating various faults, wherein the action conditions of the backup power automatic switching devices of all stations are as follows:
according to the characteristic of a power supply mode under a series supply section and the research on the function of a remote spare power automatic switching scheme, the invention provides a push-type remote spare power automatic switching device based on GOOSE communication, so that the function that a plurality of power supplies under the power supply of the series supply section are mutually standby is realized, the voltage loss risk of a transformer substation is reduced, the power supply reliability is improved, the communication is reliable by applying a new technology, the wiring is simple, the power supply reliability is improved, the market prospect is wide, and the popularization value is high.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various changes and modifications can be made without departing from the inventive concept of the present invention, and these changes and modifications are all within the scope of the present invention.
Claims (6)
1. A recursive remote backup power automatic switching method based on GOOSE communication is characterized by comprising the following steps:
s1, configuring a special GOOSE communication board card for carrying out GOOSE communication with an adjacent device;
s2, the GOOSE channel information only transmits necessary remote spare power automatic switching information;
s3, intelligently recognizing the open-loop point position and the main supply switch position before charging and fully charging the backup switching mode meeting the operation mode according to the switching value information transmitted by the GOOSE channel and the information acquired by the station device, and preparing for the next backup switching device action;
s4, when the fault station is in voltage loss, the fault station acts in a manner of S3 that the backup switching is fully charged, and gradually sends a 'distant backup switching signal' to the open-loop point device according to the recursive principle;
s5, sequentially recurrently opening the ring point switches by the ring point opening device according to the voltage loss condition of the station, and closing the main supply switch which is just opened after receiving the 'standby signal from the beginning of the station';
and S6, after the device of the non-open loop point receives the 'standby signal from the beginning of the distance', closing the main power supply switch which is just opened, and recovering power supply step by step until the last-stage station.
2. The recursive remote automatic power switching method based on GOOSE communication as claimed in claim 1, wherein in the operation step according to S1, networking or "peer-to-peer" transmission is supported on communication transmission mode.
3. The recursive remote backup automatic switching method based on GOOSE communication as claimed in claim 1, wherein in step S2, the two sides open loop point information and the remote backup automatic switching information are obtained.
4. A recursive remote automatic backup power switching device based on GOOSE communication is characterized by comprising a three-terminal automatic backup power switching configuration system, wherein the three-terminal automatic backup power switching configuration system comprises a first automatic backup power switching device, a second automatic backup power switching device and a third automatic backup power switching device.
5. The push-to-go remote automatic backup power switching device based on GOOSE communication as claimed in claim 4, wherein said first automatic backup power switching device comprises two TX and RX connector modules, said second automatic backup power switching device comprises two TX and RX connector modules, and said third automatic backup power switching device comprises two TX and RX connector modules.
6. The push-to-go remote automatic backup power switching device according to claim 5, wherein an output terminal of the first automatic backup power switching device is bidirectionally connected to an input terminal of the second automatic backup power switching device through a wireless local area network, and an output terminal of the second automatic backup power switching device is bidirectionally connected to an input terminal of the third automatic backup power switching device through a wireless local area network.
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| CN202010788180.XA CN111900803A (en) | 2020-08-07 | 2020-08-07 | Recursive remote backup power automatic switching method and device based on GOOSE communication |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112636452A (en) * | 2020-12-14 | 2021-04-09 | 北京四方继保工程技术有限公司 | Wide-area spare power automatic switching implementation method based on GOOSE communication |
| CN113964930A (en) * | 2021-11-08 | 2022-01-21 | 国网湖南省电力有限公司 | Automatic standby power supply switching cooperative control method and system for series power supply transformer substation |
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2020
- 2020-08-07 CN CN202010788180.XA patent/CN111900803A/en active Pending
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| CN112636452A (en) * | 2020-12-14 | 2021-04-09 | 北京四方继保工程技术有限公司 | Wide-area spare power automatic switching implementation method based on GOOSE communication |
| CN113964930A (en) * | 2021-11-08 | 2022-01-21 | 国网湖南省电力有限公司 | Automatic standby power supply switching cooperative control method and system for series power supply transformer substation |
| CN113964930B (en) * | 2021-11-08 | 2023-06-27 | 国网湖南省电力有限公司 | Automatic cooperative control method and system for standby power supply of series power supply transformer substation |
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