CN114708762A - Secondary fusion training system of power system - Google Patents
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- CN114708762A CN114708762A CN202111432684.9A CN202111432684A CN114708762A CN 114708762 A CN114708762 A CN 114708762A CN 202111432684 A CN202111432684 A CN 202111432684A CN 114708762 A CN114708762 A CN 114708762A
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Abstract
The invention provides a secondary fusion practical training system of an electric power system, which comprises a main station practical training module, a plant station practical training module and an electric power monitoring system network safety practical training module, wherein the plant station practical training module comprises a relay protection practical training unit and a transformer station automatic practical training unit, the main station practical training module comprises a dispatching automation main station practical training unit, the electric power monitoring system network safety practical training module comprises a plant station information receiving unit and an information monitoring unit, the relay protection practical training unit and the transformer station automatic practical training unit are both in communication connection with the plant station information receiving unit, the dispatching automation main station practical training unit is in wired communication connection with the information monitoring unit, and the plant station information receiving unit is in communication connection with the information monitoring unit. The invention can restore the complete circulation process of the secondary information of the electric power, realize the integral training and the linkage training, improve the understanding and mastering of the secondary specialty of the electric power system, and improve the training efficiency and the training quality.
Description
Technical Field
The invention relates to the technical field of power system training, in particular to a secondary fusion training system of a power system.
Background
With the continuous innovation of the power system, more and more emerging technologies are gradually applied to the operation process of the power system, the faults or operation problems faced by the power system in the operation and maintenance process become more and more complex, and technicians in the power system cannot adapt to the more and more complex operation and maintenance requirements of the power system. In order to guarantee the operation and maintenance capability of the electric power system maintenance operating personnel and the technical operation standardization in the operation and maintenance process, the electric power system maintenance operating personnel need to be trained on time. At present, secondary specialties of an electric power system, including a relay protection specialty, a plant automation specialty, a main station automation specialty and an electric power monitoring system network safety protection specialty, have mature training bases, but the training bases operate independently and cannot be linked. With the convergence development of the secondary specialties of the power system, the maintenance operators of the power system are required to be capable of communicating with the secondary specialties of the power system, and particularly grasp the mutual supporting relation and information linkage process among relay protection, automatic maintenance of a plant station, automatic scheduling of a main station and network safety protection of a power monitoring system. The existing practical training base only has a single training function, cannot restore the complete circulation process of the secondary power information, cannot completely reproduce the working environment and the working process of regulation and control-maintenance, and cannot effectively improve the comprehensive quality of power maintenance operators.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a secondary fusion practical training system of a power system.
The purpose of the invention is realized by the following technical scheme:
a secondary fusion practical training system of an electric power system is divided into a main station practical training module, a plant station practical training module and an electric power monitoring system network safety practical training module, wherein the plant station practical training module comprises a relay protection practical training unit and a transformer station automatic practical training unit, the main station practical training module comprises a dispatching automation main station practical training unit, the electric power monitoring system network safety practical training module comprises a plant station information receiving unit and an information supervision unit, the relay protection practical training unit and the transformer station automatic practical training unit are both in communication connection with the plant station information receiving unit, the dispatching automation main station practical training unit is in wired communication connection with the information supervision unit, the plant station information receiving unit is in communication connection with the information supervision unit, the relay protection practical training unit is used for providing relay protection maintenance training, and the transformer station automatic practical training unit is used for providing transformer station maintenance training, the dispatching automation master station training unit is used for providing master station operation and regulation training, and the relay protection training unit, the substation automation training unit and the dispatching automation master station training unit all transmit training data generated in training to the power monitoring system network safety training unit in real time.
Furthermore, the network safety practical training module of the power monitoring system further comprises a simulation control unit and a transverse isolation device, wherein the simulation control unit is used for simulating and generating power system service data, and the simulation control unit is in transverse communication with the information supervision unit through the transverse isolation device.
Further, the information monitoring unit is provided with a simulated dispatching data network plane router and a main station longitudinal encryption device connected with the simulated dispatching data network plane router, the plant station information receiving unit is provided with a simulated dispatching data network access network router and a plant station longitudinal encryption device connected with the simulated dispatching data network access network router, the simulated dispatching data network plane router is in communication connection with the simulated dispatching data network access network router, the plant station information receiving unit uploads plant station information through the plant station longitudinal encryption device, the simulated dispatching data network access network router forwards the plant station information to the simulated dispatching data network plane router, the simulated dispatching data network plane router and the simulated dispatching data network access network router are both provided with a real-time VPN and a non-real-time VPN, and the real-time VPN and the non-real-time VPN respectively transmit real-time information and non-real-time information between the main station and the plant station, the real-time VPN and the non-real-time VPN are logically isolated, the information monitoring unit receives the station information through the main station longitudinal encryption device, and the main station longitudinal encryption device and the station longitudinal encryption device are used for encrypting and transmitting the information between the main station and the station.
Further, the information supervision unit is further provided with a real-time switch SW1, the station information receiving unit comprises a real-time switch SW2, the real training unit of the automatic dispatching main station is connected with the vertical encryption device of the main station through the real-time switch SW1, the real training unit of the relay protection and the real training unit of the automation of the transformer station are connected with the vertical encryption device of the station through the real-time switch SW 2.
Further, the substation automatic training unit comprises a training device, an operating device and a substation switch, the operating device comprises a monitoring host and a simulation host, the training device comprises a data communication gateway machine, a line monitoring and control device, an intelligent terminal, a merging unit and a simulation line, the simulation host is connected with the intelligent terminal through the substation switch, substation automatic training personnel formulates and outputs configuration information corresponding to maintenance training of the substation through the simulation host, the intelligent terminal is used for adjusting the simulation line according to the configuration information, the simulation line is connected to the intelligent terminal at a corresponding interval, the simulation line is configured with the merging unit at intervals, the merging unit is used for acquiring electric power data of secondary equipment in the simulation line, the line monitoring and control device is connected with the merging unit, the line monitoring and control device is used for acquiring substation telemetering data according to the electric power data of the secondary equipment in the simulation line, the line measurement and control device is connected with the data communication gateway machine through the substation switch, the data communication gateway machine is in communication connection with the monitoring host machine, the data communication gateway machine is used for forwarding substation telemetering data to the monitoring host machine, and the monitoring host machine is connected with the station longitudinal encryption device through the real-time switch SW2 and uploads the telemetering data.
Further, real standard unit of transformer substation automation still includes clock equipment, clock equipment is connected with merging cells, intelligent terminal, circuit measurement and control device and data communication net shutdown machine simultaneously, clock equipment is used for providing the time to merging cells, intelligent terminal, circuit measurement and control device and data communication net shutdown machine, merging cells and intelligent terminal carry out the time to light B sign indicating number through ST optical fiber interface, circuit measurement and control device and data communication gateway machine adopt the time to electric B sign indicating number, the monitoring host computer passes through SNTP network message to the time.
Further, real standard unit of dispatch automation master station includes dispatch server, the host computer of installing RTU analog software, dispatch database and main website interchanger, dispatch server carries out communication connection through main website interchanger and the host computer of installing RTU analog software, dispatch server still is connected with the dispatch database through main website interchanger, the host computer of installing RTU analog software is used for simulating output terminal operation data according to RTU analog software, dispatch server is used for exporting main website dispatch data and upload to the dispatch database according to terminal operation data, dispatch server still is connected and uploads main website dispatch data through real-time interchanger SW1 and the vertical encryption device of main website.
Further, real standard unit of relay protection includes analog line, protective apparatus, telemechanical and relay protection switch, protective apparatus includes main transformer protective apparatus, line protective apparatus and bus protection equipment, protective apparatus disposes on the analog line according to the interval, telemechanical and protective apparatus are connected, telemechanical is used for gathering protective apparatus's operational data, telemechanical passes through real-time switch SW2 and is connected and upload protective apparatus's operational data with the vertical encryption equipment of station.
The beneficial effects of the invention are:
the relay protection, substation automation, dispatching master station and power monitoring system network safety training can be fused, and the fused secondary training system can restore the complete circulation process of power secondary information, so that the understanding and mastering of secondary specialties of a power system are improved. The system can realize the whole training or the linkage training in the respective fields of relay protection, substation automation, scheduling master station and power monitoring system network safety, thereby improving the practical training efficiency and the practical training quality.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present invention;
fig. 2 is a practical training environment topology diagram of a practical training module for network security of the power monitoring system according to the embodiment of the invention;
fig. 3 is a topological diagram of a training environment of a substation automation training unit according to an embodiment of the present invention;
FIG. 4 is a topological diagram of a training environment of a scheduling automation master training unit according to an embodiment of the present invention;
fig. 5 is a schematic diagram of an interconnection topology of a secondary fusion system according to an embodiment of the present invention;
wherein: 1. a master station training module, 2, a plant station training module, 3, a power monitoring system network safety training module, 31, a plant station information receiving unit, 311, a simulation scheduling data network access network router, 312, a plant station longitudinal encryption device, 313, a II type safety monitoring device, 314, a firewall, 32, an information supervision unit, 321, a simulation scheduling data network plane router, 322, a master station longitudinal encryption device, 323, an intranet safety supervision platform, 324, an intranet safety supervision platform network shutdown device, 33, a simulation control unit, 34, a transverse isolation device, 341, a forward isolation device FID, 342, a reverse isolation device BID, 35, a maintenance workstation, 4, a relay protection unit, 41, a telemechanical system, 42, a relay protection switch, 5, a substation automation training unit, 51, training equipment, 511, a data communication network shutdown device, 512, a measurement and control circuit device, 513. the intelligent terminal comprises 514, a merging unit, 515, a simulation line, 52, operating equipment, 521, a monitoring host, 522 a simulation host, 53, a substation switch, 54, a simulation breaker, 55, a simulation switch, 6, a dispatching automation master station training unit, 61, a dispatching server, 62, a host provided with RTU simulation software, 63, a dispatching database, 64, a master station exchanger, 7 and a front-end server.
Detailed Description
The invention is further described below with reference to the figures and examples.
Example (b):
a secondary fusion practical training system of an electric power system is disclosed, as shown in FIG. 1, the secondary fusion practical training system is divided into a main station practical training module 1, a plant station practical training module 2 and an electric power monitoring system network safety practical training module 3, the plant station practical training module 2 comprises a relay protection practical training unit 4 and a substation automation practical training unit 5, the main station module 1 comprises a dispatching automation main station practical training unit 6, the electric power monitoring system network safety practical training module 3 comprises a plant station information receiving unit 31 and an information supervision unit 32, the relay protection practical training unit 4 and the substation automation practical training unit 5 are both in communication connection with the plant station information receiving unit 31, the dispatching automation main station practical training unit 6 is in wired communication connection with the information supervision unit 32, the plant station information receiving unit 31 is in communication connection with the information supervision unit 32, the relay protection unit 4 is used for providing relay protection training and maintenance, the automatic practical training unit 5 of the transformer substation is used for providing transformer substation overhaul training, the automatic main dispatching station practical training unit is used for providing main station operation and regulation training, and practical training data generated by the relay protection practical training unit 4, the automatic practical training unit 5 of the transformer substation and the automatic main dispatching station practical training unit during training are transmitted to the electric power monitoring system network safety practical training unit in real time.
The power monitoring system network safety practical training module 3 further comprises a simulation control unit 33 and a transverse isolation device 34, the simulation control unit 33 is used for simulating and generating power system service data, and the simulation control unit 33 is in transverse communication with the information supervision unit 32 through the transverse isolation device 34. The lateral isolation device 34 includes a forward isolation device FID341 and a reverse isolation device BID 342. The analog control unit 33 is specifically a power monitoring system network safety practical training workstation.
The information monitoring unit 32 is provided with a simulated dispatching data network plane router 321 and a master station longitudinal encryption device 322 connected with the simulated dispatching data network plane router 321, the plant station information receiving unit 31 is provided with a simulated dispatching data network access network router 311 and a plant station longitudinal encryption device 312 connected with the simulated dispatching data network access network router 311, the simulated dispatching data network plane router 321 is in communication connection with the simulated dispatching data network access network router 311, the plant station information receiving unit 31 uploads plant station information through the plant station longitudinal encryption device 312, the simulated dispatching data network access network router 311 forwards the plant station information to the simulated dispatching data network plane router 321, the simulated dispatching data network plane router 321 and the simulated dispatching data network access network router 311 are both provided with real-time information and non-real-time information, and the real-time VPN and the non-real-time VPN respectively transmit real-time information and non-real-time information between the master station and the plant station, the real-time VPN and the non-real-time VPN are logically isolated, the information monitoring unit 32 receives the station information through the primary station longitudinal encryption device 322, and the primary station longitudinal encryption device 322 and the station longitudinal encryption device 312 are used for encrypting and transmitting the information between the primary station and the station.
The information monitoring unit further comprises an intranet security monitoring platform 323, a switch SW3, an intranet security monitoring platform network shutdown machine 324, a non-real-time switch SW4 and a switch SW 5. Intranet safety supervision and switch SW3 are connected, intranet safety supervision platform net machine 324 is connected with switch SW3, intranet safety supervision platform net machine 324 still is connected with the vertical encryption device 322 of main website through non-real-time switch SW4, the real standard workstation of electric power monitoring system network safety then is connected with switch SW5, and switch SW5 then is connected with switch SW3 through forward isolating device FID341 and reverse isolating device BID 342.
The information supervision unit 32 is still provided with real-time switch SW1, the station information receiving unit 31 includes real-time switch SW2, the real unit of instructing of automatic master station of dispatch is connected with the vertical encryption device 322 of main website through real-time switch SW1, real unit of instructing of relay protection 4 and the real unit of instructing of transformer substation automation 5 all are connected with the vertical encryption device 312 of station through real-time switch SW 2.
The station information receiving unit 31 further comprises a type II security monitoring device 313 and a firewall 314, one end of the type II security monitoring device 313 is connected with the station longitudinal encryption device 312, and an access network non-real-time switch SW6 is further arranged between the type II security monitoring device 313 and the station longitudinal encryption device 312. The other end of the type II security monitoring device 313 is connected to the firewall 314, and the firewall 314 is further connected to the real-time switch SW 2. The type II security monitoring device 313 is specifically a network security monitoring device DCD.
Meanwhile, the power monitoring system network security practical training module 3 further comprises a maintenance workstation 35 for vulnerability scanning and practical training configuration, and the maintenance workstation 35 configures the transverse isolation device 34, the switch SW5, the simulated dispatching data network access network router 311 and the type II security monitoring device 313.
A practical training environment topological diagram of the practical training module 3 for the network security of the power monitoring system is shown in fig. 2.
The substation automation training unit 5 comprises training equipment 51, operating equipment 52 and a substation switch 53, wherein the operating equipment 52 comprises a monitoring host 521 and a simulation host 522, the training equipment 51 comprises a data communication gateway machine 511, a line measurement and control device 512, an intelligent terminal 513, a merging unit 514 and a simulation line 515, the simulation host 522 is connected with the intelligent terminal 513 through the substation switch 53, substation automation training personnel formulate and output configuration information corresponding to substation maintenance training through the simulation host 522, the intelligent terminal 513 is used for adjusting the simulation line 515 according to the configuration information, the simulation line 515 is connected with the intelligent terminal 513 at a corresponding interval, the simulation line 515 configures the merging unit 514 according to the interval, the merging unit 514 is used for collecting electric power data of secondary equipment in the simulation line 515, and the line measurement and control device 512 is connected with the merging unit 514, the line measurement and control device 512 is used for acquiring substation telemetry data according to power data of secondary equipment in the analog line 515, the line measurement and control device 512 is connected with the data communication gateway machine 511 through the substation switch 53, the data communication gateway machine 511 is in communication connection with the monitoring host machine 521, the data communication gateway machine 511 is used for forwarding the substation telemetry data to the monitoring host machine 521, and the monitoring host machine 521 is connected with the longitudinal encryption device 312 of the station through the real-time switch SW2 and uploads the telemetry data. The practical training environment topological diagram of the substation automation practical training unit 5 is shown in fig. 3.
The intelligent equipment in the substation automation practical training unit 5 is also connected with a simulation breaker 54 and a simulation disconnecting link 55, and the simulation processing process training of the substation faults is realized through the simulation breaker 54 and the simulation disconnecting link 55. The tester is also provided with debugging instruments, such as an analog tester, a digital tester, a multimeter, a screwdriver, a short wire and the like.
In this embodiment, 2 dispatch servers 61 are adopted, and the dispatch servers 61 are SCADA servers and PAS servers.
The real standard unit 4 of relay protection includes relay protection analog line, protective apparatus, telemechanical 41 and relay protection switch 42, protective apparatus includes main transformer protective apparatus, line protection equipment and bus protection equipment, protective apparatus configures on relay protection analog line according to the interval, telemechanical 41 is connected with protective apparatus, telemechanical 41 is used for gathering protective apparatus's operational data, telemechanical 41 is connected and is uploaded protective apparatus's operational data through vertical encryption equipment of real-time switch SW2 with the station.
And the relay protection practical training unit 4, the dispatching automation main station practical training unit 6, the transformer station automation practical training unit 5 and the power monitoring system network safety practical training module 3 are all provided with a plurality of sets of practical training systems, so that when secondary fusion practical training is carried out, the internal training systems of the relay protection practical training unit 4, the dispatching automation main station practical training unit 6, the transformer station automation practical training unit 5 and the power monitoring system network safety practical training module 3 can be freely combined and linked.
The practical training unit 4 for the relay protection, the practical training unit 6 for the dispatching automation main station, the practical training unit 5 for the transformer substation and one set of practical training system in the practical training module 3 for the network safety of the power monitoring system are selected respectively to be interconnected to form a secondary fusion practical training system, an interconnection topological diagram of the secondary fusion practical training system is shown in fig. 5, the simulation circuit 515 adopted by the practical training unit 4 for the relay protection and the practical training unit 5 for the transformer substation automation are the same, the telemechanical devices 41 adopted by the practical training unit 4 for the relay protection and the practical training unit for the transformer substation are the same, the switch 42 for the relay protection and the switch 53 for the transformer substation are combined, and the same switch is used for realizing the functions of the relay protection and the practical training unit. In order to ensure that the main station data can be transmitted safely and smoothly, the front-end server 7 is connected through a real-time switch SW 1.
And after the fusion interconnection of the practical training system is realized, address allocation needs to be carried out on each device after the fusion interconnection.
The above-described embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention in any way, and other variations and modifications may be made without departing from the spirit of the invention as set forth in the claims.
Claims (8)
1. A secondary fusion practical training system of an electric power system is characterized in that the secondary fusion practical training system is divided into a main station practical training module, a plant station practical training module and an electric power monitoring system network safety practical training module, the plant station practical training module comprises a relay protection practical training unit and a substation automation practical training unit, the main station practical training module comprises a dispatching automation main station practical training unit, the electric power monitoring system network safety practical training module comprises a plant station information receiving unit and an information supervision unit, the relay protection practical training unit and the substation automation practical training unit are both in communication connection with the plant station information receiving unit, the dispatching automation main station practical training unit is in wired communication connection with the information supervision unit, the plant station information receiving unit is in communication connection with the information supervision unit, and the relay protection unit is used for providing relay protection maintenance training, the automatic training unit of the transformer substation is used for providing transformer substation overhaul training, the automatic main dispatching station training unit is used for providing main station operation and regulation training, and training data generated by the relay protection training unit, the automatic training unit of the transformer substation and the automatic main dispatching station training unit during training are transmitted to the electric power monitoring system network safety training unit in real time.
2. The practical training system for the secondary fusion of the power system according to claim 1, wherein the practical training module for the network security of the power monitoring system further comprises a simulation control unit and a lateral isolation device, the simulation control unit is used for simulating and generating the service data of the power system, and the simulation control unit is in lateral communication with the information monitoring unit through the lateral isolation device.
3. The practical training system for the secondary fusion of the electric power system as claimed in claim 1, wherein the information monitoring unit is provided with a simulated dispatching data network plane router and a main station longitudinal encryption device connected with the simulated dispatching data network plane router, the plant station information receiving unit is provided with a simulated dispatching data network access network router and a plant station longitudinal encryption device connected with the simulated dispatching data network access network router, the simulated dispatching data network plane router is in communication connection with the simulated dispatching data network access network router, the plant station information receiving unit uploads plant station information through the plant station longitudinal encryption device, the simulated dispatching data network access network router forwards the plant station information to the simulated dispatching data network plane router, both the simulated dispatching data network plane router and the simulated dispatching data network access network router are provided with a real-time VPN and a non-real-time VPN, the real-time VPN and the non-real-time VPN respectively transmit real-time information and non-real-time information between the main station and the plant station, the real-time VPN and the non-real-time VPN are logically isolated, the information monitoring unit receives the plant station information through the main station longitudinal encryption device, and the main station longitudinal encryption device and the plant station longitudinal encryption device are used for encrypting and transmitting the information between the main station and the plant station.
4. The practical training system for secondary fusion of the electric power system as claimed in claim 3, wherein the information supervision unit is further provided with a real-time switch SW1, the plant station information receiving unit comprises a real-time switch SW2, the practical training unit for dispatching the automatic main station is connected with the longitudinal encryption device of the main station through the real-time switch SW1, and the practical training unit for relay protection and the practical training unit for substation automation are both connected with the longitudinal encryption device of the plant station through the real-time switch SW 2.
5. The practical training system for the secondary fusion of the electric power system according to claim 4, wherein the practical training unit for the substation automation comprises a practical training device, an operating device and a substation switch, the operating device comprises a monitoring host and a simulation host, the practical training device comprises a data communication network shutdown device, a line monitoring and control device, an intelligent terminal, a merging unit and a simulation line, the simulation host is connected with the intelligent terminal through the substation switch, a training staff for the substation automation formulates and outputs configuration information corresponding to the maintenance training of the substation through the simulation host, the intelligent terminal is used for adjusting the simulation line according to the configuration information, the simulation line is connected to the intelligent terminal at a corresponding interval, the simulation line is configured with the merging unit at intervals, the merging unit is used for collecting electric power data of secondary devices in the simulation line, the line measurement and control device is connected with the merging unit, the line measurement and control device is used for obtaining substation telemetering data according to the electric power data of secondary equipment in the simulation line, the line measurement and control device is connected with the data communication gateway machine through a substation switch, the data communication gateway machine is in communication connection with the monitoring host machine, the data communication gateway machine is used for forwarding the substation telemetering data to the monitoring host machine, and the monitoring host machine is connected with the station longitudinal encryption device through the real-time switch SW2 and uploads the telemetering data.
6. The practical training system for secondary fusion of the electric power system according to claim 5, characterized in that the substation automation practical training unit further comprises a clock device, the clock device is simultaneously connected with the merging unit, the intelligent terminal, the line measurement and control device and the data communication gateway machine, the clock device is used for providing time synchronization for the merging unit, the intelligent terminal, the line measurement and control device and the data communication gateway machine, the merging unit and the intelligent terminal perform optical B code time synchronization through an ST optical fiber interface, the line measurement and control device and the data communication gateway machine adopt electric B code time synchronization, and the monitoring host machine performs SNTP network message time synchronization through an SNTP.
7. The practical training system for the secondary fusion of the electric power system as claimed in claim 4, wherein the practical training unit for the dispatching automation master station comprises a dispatching server, a host machine with RTU simulation software, a dispatching database and a master station exchanger, the dispatching server is in communication connection with the host machine with RTU simulation software through the master station exchanger, the dispatching server is further connected with the dispatching database through the master station exchanger, the host machine with RTU simulation software is used for simulating and outputting terminal operation data according to the RTU simulation software, the dispatching server is used for outputting master station dispatching data according to the terminal operation data and uploading the master station dispatching data to the dispatching database, and the dispatching server is further connected with the master station longitudinal encryption device through a real-time exchanger SW1 and uploads the master station dispatching data.
8. The practical training system of secondary fusion of electric power system of claim 4, characterized in that, the practical training unit of relay protection includes simulation circuit, protection device, telemechanical and relay protection switch, the protection device includes main transformer protection device, line protection device and bus protection device, the protection device disposes on simulation circuit according to the interval, telemechanical and protection device are connected, telemechanical is used for gathering the operating data of protection device, telemechanical passes through real-time switch SW2 and is connected and upload the operating data of protection device with the vertical encryption equipment of station.
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| CN104505941A (en) * | 2014-12-18 | 2015-04-08 | 国网浙江省电力公司培训中心 | Monitoring system and simulating running system for intelligent substation network |
| CN205029694U (en) * | 2015-10-14 | 2016-02-10 | 国网浙江省电力公司培训中心 | Electric power dispatching data network training system |
| CN207765959U (en) * | 2018-01-30 | 2018-08-24 | 国网浙江省电力有限公司培训中心 | A kind of intelligent grid scheduling controlling comprehensive training system |
| CN112711841A (en) * | 2020-12-23 | 2021-04-27 | 湖南依中紫光电气科技有限公司 | Micro-grid intelligent substation is innovation platform device in coordination |
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