CN112583046A - Remote control electric power regulation and control system - Google Patents
Remote control electric power regulation and control system Download PDFInfo
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- CN112583046A CN112583046A CN202011310696.XA CN202011310696A CN112583046A CN 112583046 A CN112583046 A CN 112583046A CN 202011310696 A CN202011310696 A CN 202011310696A CN 112583046 A CN112583046 A CN 112583046A
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- photovoltaic
- remote control
- storage battery
- wind power
- grid
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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
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
- H02J3/381—Dispersed generators
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H1/00—Buildings or groups of buildings for dwelling or office purposes; General layout, e.g. modular co-ordination or staggered storeys
- E04H1/12—Small buildings or other erections for limited occupation, erected in the open air or arranged in buildings, e.g. kiosks, waiting shelters for bus stops or for filling stations, roofs for railway platforms, watchmen's huts or dressing cubicles
- E04H1/1205—Small buildings erected in the open air
- E04H1/1238—Shelters for engines, e.g. electrical meter housings
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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
- H02J13/00006—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
- H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
- H02J2300/20—The dispersed energy generation being of renewable origin
- H02J2300/22—The renewable source being solar energy
- H02J2300/24—The renewable source being solar energy of photovoltaic origin
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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
- H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
- H02J2300/20—The dispersed energy generation being of renewable origin
- H02J2300/28—The renewable source being wind energy
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/76—Power conversion electric or electronic aspects
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/70—Smart grids as climate change mitigation technology in the energy generation sector
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
-
- 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
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/12—Monitoring or controlling equipment for energy generation units, e.g. distributed energy generation [DER] or load-side generation
- Y04S10/123—Monitoring or controlling equipment for energy generation units, e.g. distributed energy generation [DER] or load-side generation the energy generation units being or involving renewable energy sources
-
- 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
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/16—Electric power substations
-
- 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
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/126—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wireless data transmission
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Power Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The invention relates to a remote control power regulation and control system, which comprises: the power transmission line is connected to a user load end through a load access executing mechanism; the power transmission line is connected to a wind power inverter through a wind power access execution mechanism, the wind power inverter is connected to a wind power storage battery, and the wind power storage battery is connected to a wind driven generator; the power transmission line is connected to a photovoltaic inverter through a photovoltaic access execution mechanism, the photovoltaic inverter is connected to a photovoltaic storage battery pack, and the photovoltaic storage battery pack is connected to the solar panel array; the transmission line is connected to a distribution network transformer substation through a distribution network access actuating mechanism; the load access executing mechanism, the wind access executing mechanism, the photovoltaic access executing mechanism and the distribution network access executing mechanism are all connected to the grid-connected switch controller; the wind power storage battery pack is connected to the grid-connected switch controller through a wind power electric quantity sensor, and the photovoltaic storage battery pack is connected to the grid-connected switch controller through a photovoltaic electric quantity sensor.
Description
Technical Field
The invention belongs to the technical field of power control, and relates to a remote control power regulation and control system.
Background
With the continuous expansion and perfection of national infrastructure, the coverage range of a power grid is more and more extensive; various new energy power supply systems derived from the method are also favored.
In the prior art, no technical scheme is provided for solving the problem of how to realize switching of power supply of various new energy sources into a power supply grid through a remote end; therefore, the switching of the power supply of various new energy sources can be performed only at the local end; the switching mode of the local end has certain dangerous factors; and it is extremely inconvenient to control the handover process. This is a disadvantage of the prior art.
In view of the above, the present invention provides a remote control power regulation system; to solve the above-mentioned drawbacks existing in the prior art; is very necessary.
Disclosure of Invention
The present invention is directed to a remote control power regulation system, which is designed to solve the above technical problems.
In order to achieve the purpose, the invention provides the following technical scheme:
a remote control power conditioning system comprising:
the power transmission line is connected to a user load end through a load access executing mechanism;
the power transmission line is connected to a wind power inverter through a wind power access execution mechanism, the wind power inverter is connected to a wind power storage battery, and the wind power storage battery is connected to a wind driven generator;
the power transmission line is connected to a photovoltaic inverter through a photovoltaic access actuating mechanism, the photovoltaic inverter is connected to a photovoltaic storage battery pack, and the photovoltaic storage battery pack is connected to a solar panel array;
the transmission line is connected to a distribution network transformer substation through a distribution network access actuating mechanism;
the load access executing mechanism, the wind access executing mechanism, the photovoltaic access executing mechanism and the distribution network access executing mechanism are all connected to the grid-connected switch controller;
the wind power storage battery pack is connected to a grid-connected switch controller through a wind power electric quantity sensor, and the photovoltaic storage battery pack is connected to the grid-connected switch controller through a photovoltaic electric quantity sensor;
the grid-connected switch controller is communicated with the remote control center through the wireless communication module, sends data information to the remote control center through the wireless communication module, and receives a control instruction sent by the remote control center through the wireless communication module.
Preferably, the wind power inverter, the photovoltaic inverter and the grid-connected switch controller are arranged in a control box in a centralized manner; the wind power inverter, the photovoltaic inverter and the grid-connected switch controller are prevented from being exposed in the external natural environment, so that the service life is shortened.
Preferably, the wireless communication module is communicated with a remote control center through a GPRS wireless network; the GPRS wireless network has wide coverage area and safe and reliable data transmission.
Preferably, the grid-connected switch controller is a single chip microcomputer controller, and is simple to develop and low in cost.
Preferably, the box body of the control box sequentially comprises a concrete base layer wall body and a heat insulation board from inside to outside; the box body structure formed by the concrete base layer wall body and the heat insulation board can play a role in enhancing the strength of the whole control box as much as possible, and can play a good heat insulation effect.
Preferably, a main frame steel bar structure is arranged in the concrete base layer wall body and used for enhancing the strength of the concrete integrated wall body.
Preferably, a steel wire mesh frame is further arranged in the concrete foundation wall body, and the steel wire mesh frame is connected to the heat insulation and heat preservation plate through obliquely inserted steel bars.
Preferably, the outer side of the heat insulation board is also bonded with a reflective coating through a binder layer; the solar energy storage box is used for reflecting solar illumination and avoiding the over-high temperature inside the box body caused by the fact that the box body absorbs excessive light.
The invention has the advantages that the technical means for supplying power to user loads by various energy sources is provided, solar energy and wind energy are converted into electric energy to be stored in the corresponding storage battery packs, the residual electric quantity of each storage battery pack is detected, the detected residual electric quantity data information is transmitted to the grid-connected switch controller, and the access execution mechanism of the object controlled by the grid-connected switch controller is switched among various power supply modes; meanwhile, the data information is transmitted to a remote control center, and the remote control center realizes control at a remote end.
In addition, the invention has reliable design principle, simple structure and very wide application prospect.
Therefore, compared with the prior art, the invention has prominent substantive features and remarkable progress, and the beneficial effects of the implementation are also obvious.
Drawings
Fig. 1 is a control schematic diagram of a remote control power conditioning system provided by the invention.
Fig. 2 is a schematic structural view of the control box.
Wherein, 1-a power transmission line, 2-a load access execution mechanism, 3-a user load end, 4-a wind power access execution mechanism, 5-a wind power inverter, 6-a wind power storage battery, 7-a wind power generator, 8-a photovoltaic access execution mechanism, 9-a photovoltaic inverter, 10-a photovoltaic storage battery, 11-a solar panel array, 12-a distribution network access execution mechanism, 13-a distribution network transformer substation, 14-a grid-connected switch controller, 15-a wind power sensor, 16-a photovoltaic electric quantity sensor, 17-a wireless communication module, 18-a remote control center, 19-a control box, 20-a concrete base layer wall body, 21-a heat insulation board, 22-a main frame steel bar structure and 23-a steel wire frame, 24-oblique inserted steel bars, 25-adhesive layers and 26-reflective coatings.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings by way of specific examples, which are illustrative of the present invention and are not limited to the following embodiments.
As shown in fig. 1 and 2, the present embodiment provides a remote control power conditioning system, including:
the power transmission line 1 is connected to a user load end 3 through a load access executing mechanism 2;
the power transmission line 1 is connected to a wind power inverter 5 through a wind power access execution mechanism 4, the wind power inverter 5 is connected to a wind power storage battery 6, and the wind power storage battery 6 is connected to a wind power generator 7;
the power transmission line 1 is connected to a photovoltaic inverter 9 through a photovoltaic access actuating mechanism 8, the photovoltaic inverter 9 is connected to a photovoltaic storage battery pack 10, and the photovoltaic storage battery pack 10 is connected to a solar panel array 11;
the power transmission line 1 is connected to a distribution network transformer substation 13 through a distribution network access executing mechanism 12;
the load access executing mechanism 2, the wind access executing mechanism 4, the photovoltaic access executing mechanism 8 and the distribution network access executing mechanism 12 are all connected to a grid-connected switch controller 14;
the wind power storage battery pack 6 is connected to a grid-connected switch controller 14 through a wind power electric quantity sensor 15, and the photovoltaic storage battery pack 10 is connected to the grid-connected switch controller 14 through a photovoltaic electric quantity sensor 16; the grid-connected switch controller 14 is a single chip microcomputer controller, and is simple in development and low in cost.
The grid-connected switch controller 14 is communicated with a remote control center 18 through a wireless communication module 17, and the wireless communication module 17 is communicated with the remote control center 18 through a GPRS wireless network; the GPRS wireless network has wide coverage area and safe and reliable data transmission. The grid-connected switch controller sends data information to the remote control center through the wireless communication module and receives a control instruction sent by the remote control center through the wireless communication module.
The wind power inverter 5, the photovoltaic inverter 9 and the grid-connected switch controller 14 are arranged in the control box 19 in a centralized manner; the box body of the control box 19 is sequentially provided with a concrete base layer wall body 20 and a heat insulation board 21 from inside to outside; the concrete base wall 20 is internally provided with a main frame steel bar structure 22 for enhancing the strength of the concrete integrated wall. A steel wire mesh frame 23 is further arranged in the concrete base layer wall body 20, and the steel wire mesh frame 23 is connected to the heat insulation and heat preservation plate through an inclined inserted steel bar 24. The outer side of the heat insulation board 21 is also bonded with a reflective coating 26 through a bonding agent layer 25; the solar energy storage box is used for reflecting solar illumination and avoiding the over-high temperature inside the box body caused by the fact that the box body absorbs excessive light. The box structure made of the concrete base wall 20 and the heat insulation board 21 can play a role in enhancing the strength of the whole control box as much as possible, and can play a good heat insulation effect. The wind power inverter, the photovoltaic inverter and the grid-connected switch controller are prevented from being exposed in the external natural environment, so that the service life is shortened.
The above disclosure is only for the preferred embodiments of the present invention, but the present invention is not limited thereto, and any non-inventive changes that can be made by those skilled in the art and several modifications and amendments made without departing from the principle of the present invention shall fall within the protection scope of the present invention.
Claims (8)
1. A remote control power conditioning system, comprising:
the power transmission line is connected to a user load end through a load access executing mechanism;
the power transmission line is connected to a wind power inverter through a wind power access execution mechanism, the wind power inverter is connected to a wind power storage battery, and the wind power storage battery is connected to a wind driven generator;
the power transmission line is connected to a photovoltaic inverter through a photovoltaic access actuating mechanism, the photovoltaic inverter is connected to a photovoltaic storage battery pack, and the photovoltaic storage battery pack is connected to a solar panel array;
the transmission line is connected to a distribution network transformer substation through a distribution network access actuating mechanism;
the load access executing mechanism, the wind access executing mechanism, the photovoltaic access executing mechanism and the distribution network access executing mechanism are all connected to the grid-connected switch controller;
the wind power storage battery pack is connected to a grid-connected switch controller through a wind power electric quantity sensor, and the photovoltaic storage battery pack is connected to the grid-connected switch controller through a photovoltaic electric quantity sensor;
the grid-connected switch controller is communicated with the remote control center through the wireless communication module, sends data information to the remote control center through the wireless communication module, and receives a control instruction sent by the remote control center through the wireless communication module.
2. The remote control power conditioning system according to claim 1, wherein the wind inverter, the photovoltaic inverter and the grid-connected switch controller are collectively disposed in a control box.
3. The remote control power conditioning system according to claim 2, wherein the wireless communication module communicates with the remote control center via a GPRS wireless network.
4. The remote control power conditioning system according to claim 3, wherein the grid-connected switch controller is a single chip controller.
5. The remote control power conditioning system according to claim 4, wherein the box body of the control box comprises a concrete base wall and a heat insulation board from inside to outside.
6. The remote control power conditioning system according to claim 5, wherein a main frame steel bar structure is arranged in the concrete-based wall.
7. The remote control power regulation and control system of claim 6, wherein a steel wire mesh frame is further arranged in the concrete foundation wall body, and the steel wire mesh frame is connected to the heat insulation and heat preservation plate through oblique inserted steel bars.
8. The remote control power conditioning system according to claim 7, wherein the outer side of the heat insulation board is further bonded with a reflective coating through an adhesive layer.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011310696.XA CN112583046A (en) | 2020-11-20 | 2020-11-20 | Remote control electric power regulation and control system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011310696.XA CN112583046A (en) | 2020-11-20 | 2020-11-20 | Remote control electric power regulation and control system |
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| CN112583046A true CN112583046A (en) | 2021-03-30 |
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| CN202011310696.XA Pending CN112583046A (en) | 2020-11-20 | 2020-11-20 | Remote control electric power regulation and control system |
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| CN101144267A (en) * | 2007-09-28 | 2008-03-19 | 浙江省电力设计院 | Reinforced concrete flood-proof wall system for transformer substation |
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| CN203690940U (en) * | 2013-11-28 | 2014-07-02 | 国家电网公司 | Nested-type microgrid system |
| CN204230930U (en) * | 2014-11-07 | 2015-03-25 | 国家电网公司 | Intelligent residential district wind light mutual complementing distribution system |
| CN106356888A (en) * | 2016-09-28 | 2017-01-25 | 华中科技大学 | High-rise building pumped storage scenery intelligent micro-grid system and control method |
| CN206164431U (en) * | 2016-09-21 | 2017-05-10 | 天津百利机械装备集团有限公司中央研究院 | From complementary compound power generation system of net type scene firewood |
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2020
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101144267A (en) * | 2007-09-28 | 2008-03-19 | 浙江省电力设计院 | Reinforced concrete flood-proof wall system for transformer substation |
| CN202651785U (en) * | 2012-04-28 | 2013-01-02 | 中国电力科学研究院 | AC/DC mixed type micro-grid system |
| CN203690940U (en) * | 2013-11-28 | 2014-07-02 | 国家电网公司 | Nested-type microgrid system |
| CN204230930U (en) * | 2014-11-07 | 2015-03-25 | 国家电网公司 | Intelligent residential district wind light mutual complementing distribution system |
| CN206164431U (en) * | 2016-09-21 | 2017-05-10 | 天津百利机械装备集团有限公司中央研究院 | From complementary compound power generation system of net type scene firewood |
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Application publication date: 20210330 |
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