CN210350790U - Wind power, photoelectricity and generator coupled intelligent micro-grid structure with multi-energy complementation - Google Patents
Wind power, photoelectricity and generator coupled intelligent micro-grid structure with multi-energy complementation Download PDFInfo
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- CN210350790U CN210350790U CN201920967960.3U CN201920967960U CN210350790U CN 210350790 U CN210350790 U CN 210350790U CN 201920967960 U CN201920967960 U CN 201920967960U CN 210350790 U CN210350790 U CN 210350790U
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/60—Planning or developing urban green infrastructure
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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
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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
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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
- 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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Abstract
This scheme provides the complementary intelligent microgrid structure of multipotency of coupling wind-powered electricity generation, photoelectricity, generator, and under the normal operating mode, I section generating line owner supplies, II section generating line hot standby, sunday: an intermittent power supply, a controllable power supply and an energy storage system on the I section bus supply power to the electricity utilization load; at night: the energy storage system supplies power to the electric load. An energy storage battery system is used as a main power supply source, the constant voltage and constant frequency of the micro-grid are maintained, and the stability and reliability of the system are ensured; the distributed power supply mainly uses photovoltaic power generation and wind power generation and uses gas power generation as assistance, so that the flexibility and expandability of the system are ensured. Under the fire control operating mode, II section generating line main supplies, I section generating line hot standby, change over switch electrical apparatus switches to the closure, and energy storage system supplies power to the fire control circuit, and wherein, as energy storage system can't supply power to the fire control circuit, emergency power supply's switch is closed, and emergency power supply supplies power to the fire control circuit. The emergency power supply can meet the requirements of secondary load and fire pump starting, and meanwhile, the safety of the system is guaranteed.
Description
Technical Field
The utility model belongs to little electric wire netting field especially relates to a little electric wire netting structure of multipotency complementary intelligence of coupling wind-powered electricity generation, photoelectricity, generator.
Background
In the prior art, the microgrid has a relatively simple structural form and few power types, and only the isolated grid microgrid is coupled with a limited power type similar to wind power and storage battery coupling and photoelectric and storage battery coupling.
However, in the current situation of short electric energy resources, how to further couple power supply forms such as renewable energy sources and differential pressure power generation so as to realize cooperative work of multiple power supply types becomes a problem to be solved urgently.
SUMMERY OF THE UTILITY MODEL
The utility model provides a complementary intelligent microgrid system architecture of multipotency of coupling pressure differential electricity generation combines multiple electricity generation mode, and it is simple to have solved among the prior art microgrid structural style, can't realize the problem of multiple power type collaborative work.
In order to achieve the technical purpose, the technical scheme of the application comprises the following steps: the system comprises a first section of bus, a second section of bus, a transfer switch electric appliance, an intermittent power supply, a controllable power supply, an energy storage system, an emergency standby power supply, an energy management system and a fire-fighting line; the I section of bus is connected with the intermittent power supply, the controllable power supply, the power output end of the intelligent system and the power receiving end of the electric load through switches, the I section of bus is also connected with one end of the fire-fighting line through a node, and a switch is arranged between the I section of bus and the II section of bus; the section II bus is connected with the power output ends of the energy storage system, the emergency standby power supply and the energy management system through switches, and the section II bus is connected with the other end of the fire-fighting line through another node; under normal working conditions, the I section of bus is mainly supplied with power, and the II section of bus is hot-standby, specifically, during the daytime, the intermittent power supply, the controllable power supply and the energy storage system on the I section of bus supply power to the electric load, and during the nighttime, the energy storage system supplies power to the electric load; under the fire control operating mode, II section generating line main supplies, I section generating line hot standby, change over switch electrical apparatus switches to the closure, and energy storage system supplies power to the fire control circuit, and wherein, as energy storage system can't supply power to the fire control circuit, emergency power supply's switch is closed, and emergency power supply supplies power to the fire control circuit.
Preferably, the first section of bus and the second section of bus are respectively provided with a dynamic reactive power compensation circuit.
Preferably, one end of the energy storage system is connected to the second section of bus bar through a node, and the other end of the energy storage system is connected to the first section of bus bar through a node.
Preferably, the intermittent power source includes a photovoltaic power generation power source and a wind power generation power source.
Preferably, the controllable power source includes a gas generator I and a gas generator II.
Preferably, the energy storage system includes a first energy storage battery and a second energy storage battery, the first energy storage battery is connected to the I-section bus via a first energy storage converter, the second energy storage battery is connected to the I-section bus via a second energy storage converter, and the second energy storage battery is connected to the II-section bus via a third energy storage converter.
Preferably, as a preferred option of the above technical solution, the load (standby) of the fire pump room of the fire fighting line is connected to the I-section bus through the node.
Preferably, as a preferred option of the above technical solution, the load (main) of the fire pump room of the fire fighting line is connected to the section II bus through the node.
Preferably, the fire-fighting water pump (main), the fire-fighting water pump (standby) and the fire-fighting water pump are at least arranged on the fire-fighting line.
Preferably, in the above-described aspect, the load is connected to the I-section bus bar through a load switch group.
The utility model provides a coupling pressure difference power generation's intelligent microgrid system architecture of multipotency complementation, under the normal operating mode, I section generating line main power supply, II section generating line hot standby, the day period, intermittent type nature power, controllability power and the energy storage system on I section generating line supply power to the power consumption load, night day period, the energy storage system supplies power to the power consumption load; under the fire control operating mode, II section generating line main supplies, I section generating line hot standby, change over switch electrical apparatus switches to the closure, and energy storage system supplies power to the fire control circuit, and wherein, as energy storage system can't supply power to the fire control circuit, emergency power supply's switch is closed, and emergency power supply supplies power to the fire control circuit.
The utility model has the advantages that: an energy storage battery system is used as a main power supply source, the constant voltage and constant frequency of the micro-grid are maintained, and the stability and reliability of the system are ensured; the distributed power supply mainly adopts photovoltaic power, wind power and power generation, and adopts gas and pressure difference power generation as assistance, so that the flexibility and expandability of the system are ensured; the emergency power supply can meet the requirements of secondary load and fire pump starting, and meanwhile, the safety of the system is guaranteed.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, a brief description will be given below of the drawings required to be used in the description of the embodiments or the prior art, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a structural diagram of a direct-coupled differential-pressure power generation intelligent micro-grid system with complementary multiple energies provided by the embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Fig. 1 is a schematic structural diagram provided in the embodiment of the present invention, as shown in fig. 1, including: i section generating line, II section generating line, intermittent type nature power 1, controllability power 2, energy storage system 3, emergent stand-by power supply 4, energy management system 5, change over switch electrical apparatus ATS and fire control circuit, it is specific:
the I section of bus is connected with the intermittent power source 1, the controllable power source 2, the energy storage system 3 and the electric load 7 through the switch group 6. The intermittent power source 1 includes a differential pressure power generation power source 11, a photovoltaic power generation power source 12, and a wind power generation power source 13. The controllable power source 2 includes a gas generator I and a gas generator II. The I section of the bus is also provided with a dynamic reactive power compensation circuit for reducing the electric energy loss of the I section of the bus caused by transmitting reactive power (generated by electric loads such as a generator, a transformer and the like).
One end of the energy storage system 3 is connected with the section II bus through a node A, and the other end of the energy storage system is connected with the section I bus through a node B.
The energy storage system 3 includes: the System comprises a first Energy Storage battery ESS-1(Energy Storage System) and a second Energy Storage battery ESS-2, wherein the first Energy Storage battery is connected with a node B1 through an Energy Storage converter 1 and a bus of the I section, the second Energy Storage battery is connected with a node B2 through the Energy Storage converter 2 and the bus of the I section, and the second Energy Storage battery is further connected with a node A through an Energy Storage converter 3 and a bus of the II section.
The I section bus is also connected with one end of a fire-fighting line through a node C, and the fire-fighting pump room load (standby) of the fire-fighting line is connected with the I section bus through the node C. The electric load 7 is connected with the I section bus through the load switch group 8.
A switch D is arranged between the section I bus and the section II bus;
the section II bus is connected with the energy storage system 3, the emergency standby power supply 4 and the energy management system 5 through a switch D, and the section II bus is connected with one end of the fire-fighting line through a node E; and the load (main) of a fire pump room of the fire-fighting line is connected with the section II bus through a node E. The bus of the section II is provided with another dynamic reactive power compensation circuit which is used for reducing the electric energy loss caused by the transmission of reactive power (generated by electric loads such as a generator, a transformer and the like) of the bus of the section II. The fire-fighting line is at least provided with a fire-fighting water pump (main), a fire-fighting water pump (standby) and a fire-fighting water pump.
Under a normal working condition, the I section of bus is mainly used for supplying power, and the II section of bus is used for hot standby, specifically, during a daytime period, the intermittent power source 1, the controllable power source 2 and the energy storage system 3 on the I section of bus supply power to an electric load 7, and during a nighttime period, the energy storage system 3 supplies power to the electric load 7;
under the fire control operating mode, II section generating line main supplies, I section generating line hot standby, change over switch electrical apparatus ATS switches to the closure, and energy storage system 3 supplies power to the fire control circuit, and wherein, as energy storage system 3 can't supply power to the fire control circuit, emergency stand-by power supply 4's switch is closed, and emergency stand-by power supply 4 is right the fire control circuit supplies power.
The utility model discloses it is right with concrete implementation scene the utility model discloses explain:
under normal operating conditions: the I section of bus main supply and the II section of bus hot standby. An energy storage system 3 provides voltage support for the I section of bus, and two groups of batteries ESS-1 and ESS-2 are mutually standby and are started in turn.
During the day, each intermittent power source 1, including but not limited to: and power switches connected with the I-section bus of the differential pressure power generation power supply 11, the photovoltaic power generation power supply 12 and the wind power generation power supply 13 are switched to a closed state, and cooperate with the energy storage system 3 to supply power to the electric load 7. Further, the gas generator I and/or the gas generator II in the controllable power supply 2 supplies power to the electric load 7 on the section I bus. Normally, the load switch group of the electric load 7 is in a connected state.
Specifically, the energy storage system 3 comprises a first energy storage battery ESS-1, an energy storage converter PCS1, a second energy storage battery ESS-2, an energy storage converter PCS2 and an energy storage converter PCS 3. The first energy storage battery ESS-1(500kWh) typically has a battery capacity of 20-80% SOC (State of Charge) when it supports the grid via energy storage converter PCS1, and the second energy storage battery ESS-2(1000kWh) typically has a battery capacity of 60-90% SOC when it supports the grid via energy storage converter PCS 2. When the energy storage batteries ESS-1 and ESS-2 have reduced battery capacity due to supporting the power grid and the electric quantity of the energy storage system 3 is lower than 500kWh, the electric quantity of not less than 500kWh needs to be reserved for a long time by the energy storage system 3, and the gas generator I and/or the gas generator II in the controllable power supply 2 are/is charged to the controllable power supply, so that the first energy storage batteries ESS-1 and ESS-2 are charged to 90% SOC before work. Judging the starting operation power of the generator: and judging the generated energy of the generator required before work according to the load of the electric load 7, the intermittent power source 1, the controllable power source 2 and the prediction of the electric quantity output of the energy storage system 3, averagely until the remaining hour, and starting the generator if the power is more than or equal to the power of the generator. And the power of the generator is adjusted in real time according to the actual load and the output of the distributed power supply. Wherein, the basis of the starting of the generator is as follows: the energy storage batteries ESS-1 and ESS-2 in the energy storage system 3 are charged to 80% before work and are guaranteed to be started only once a day as much as possible. Wherein, the starting conditions of the gas generator are as follows: the energy storage batteries ESS-1 and ESS-2 are lower than 20% SOC, or the load of the electric load 7 exceeds a set value. Shutdown conditions of the gas generator: the electric quantity of the energy storage batteries ESS-1 and ESS-2 reaches 90% SOC, and the load is lower than a set value. When the two groups of gas generators are mutually redundant and the load of the electric load 7 exceeds a set value (the set value is undetermined), all the gas generators are started. Further, the high-temperature flue gas of the gas generator adopts the plate heat exchanger to recycle waste heat, and is merged into a boiler system, so that the fuel consumption of a boiler room is reduced.
Further, the intermittent power source 1 is normally full power generating with the highest priority. After the energy storage system 3 is charged to 80%, if the power of the intermittent power source 1 is still larger than the load of the power load 7, the power output amounts of the photovoltaic power generation power source 12 and the wind power generation power source 13 are reduced in the same proportion, and the power output amount of the differential pressure power generation power source 11 is kept unchanged.
At night, the first energy storage battery supplies power to the I-section bus through the energy storage converter PCS1, the ESS-2 supplies power to the I-section bus through the energy storage converter PCS2, the second energy storage battery is the main one, and the first energy storage battery is the auxiliary one.
Further, under normal working conditions, every day, the ems (energy management system) of the energy management system 5 makes an optimal day-ahead plan according to the load of the previous day power load 7, the intermittent power supply, the controllable power supply 2 and the previous day working condition prediction of the energy storage system 3. When the system is actually operated on the same day, the output electric quantities of the differential pressure power generation power supply 11, the photovoltaic power generation power supply 12, the wind power generation power supply 13 and the controllable power supply 2 are controlled according to the actual condition of energy storage and the effective output electric quantity of the intermittent power supply in combination with the day-ahead optimal plan, and the switching action of a switching device connected with the power supplies is controlled. Wherein, the control signal output end of the energy management system 5 respectively corresponds to: the energy storage batteries ESS-1 and ESS-2, the energy storage converters 1, 2 and 3, the diesel generator, the gas generator I, the gas generator II, the wind power generation power supply 13, the photovoltaic power generation power supply 12, the differential pressure power generation power supply 11 and the control signal receiving ends of the two dynamic reactive power compensation circuits are connected through optical cables.
Under the fire-fighting working condition, the second section of bus main supply and the first section of bus hot standby. An energy storage battery ESS-2 in the energy storage system 3 supplies power to the II-section bus through an energy storage converter PCS3, the battery ESS-2 supplies power to the fire pump, and the diesel generator is cold-standby, at the moment, switches connected with the I-section bus are disconnected by the PCS1 and the PCS2, the switch connected with the II-section bus is closed by the PCS3, and the switch connected with the II-section bus is closed by the diesel generator. The switch between the fire pump room load (main) and the II section bus on the fire line is closed, the transfer switch ATS is closed, and the switch between the fire pump room load (standby) and the I section bus is closed, so that the power supply of the electric load 7 is realized.
Further, under the fire-fighting working condition, when the battery system fails or the battery power does not meet the requirements for starting and operating the fire-fighting water pump, the diesel generator of the emergency standby power supply 4 is started to supply power to loads such as an electricity load 7, the fire-fighting water pump, a fire-fighting pump room load (main), a fire-fighting pump room load (standby), a fire-fighting pressure stabilizing pump and the like.
The utility model provides a coupling pressure difference power generation's intelligent microgrid system architecture of multipotency complementation, under the normal operating mode, I section generating line main power supply, II section generating line hot standby, the day period, intermittent type nature power 1, controllability power 2 and energy storage system 3 on the I section generating line supply power to power consumption load 7, night day period, energy storage system 3 supplies power to power consumption load 7; under the fire control operating mode, II section generating line main supply, I section generating line hot standby, change over switch electrical apparatus switches to the closure, and energy storage system 3 supplies power to the fire control line, and wherein, when energy storage system 3 can't supply power to the fire control line, emergency standby power supply 4's switch is closed, and emergency standby power supply 4 supplies power to the fire control line.
The utility model has the advantages that: an energy storage battery system is used as a main power supply source, the constant voltage and constant frequency of the micro-grid are maintained, and the stability and reliability of the system are ensured; the distributed power supply mainly adopts photovoltaic power generation and wind power generation, and adopts gas and differential pressure power generation as assistance, so that the flexibility and expandability of the system are ensured; the emergency power supply can meet the requirements of secondary load and fire pump starting, and meanwhile, the safety of the system is guaranteed.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (10)
1. Wind-powered electricity generation of coupling, photoelectricity, generator's complementary intelligent microgrid structure of multipotency, its characterized in that, it includes: i section bus, II section bus, transfer switch electric appliance, intermittent power supply, controllable power supply, energy storage system, emergency standby power supply, energy management system and fire-fighting line,
the I section of bus is connected with the intermittent power source, the controllable power source, the power output end of the energy storage system and the power receiving end of an electric load through switches, the I section of bus is also connected with one end of the fire fighting line through a node, and a switch is arranged between the I section of bus and the II section of bus;
the section II bus is connected with the energy storage system, the emergency standby power supply and the power output end of the energy management system through switches, and the section II bus is connected with the other end of the fire-fighting line through another node;
under a normal working condition, the I section of bus main supply and the II section of bus hot standby, specifically, during a daytime period, the intermittent power supply, the controllable power supply and the energy storage system on the I section of bus supply power to an electric load, and during a night time period, the energy storage system supplies power to the electric load;
under the fire control operating mode, II section generating lines main supply, I section generating lines heat and are equipped with, change over switch electrical apparatus switches to the closure, energy storage system is right the fire control circuit power supply, wherein, work as energy storage system is unable right the fire control circuit power supply, emergency power supply's switch is closed, emergency power supply is provided the fire control circuit power supply.
2. The intelligent microgrid structure of claim 1 for coupling wind power, photovoltaic and generator with multi-energy complementation, characterized by comprising: and the I section of bus and the II section of bus are respectively provided with a dynamic reactive power compensation circuit.
3. The intelligent microgrid structure of claim 1 for coupling wind power, photovoltaic and generator with multi-energy complementation, characterized by comprising: one end of each of two power output ends of the energy storage system is connected with the corresponding bus of the section II through one node, and the other power output end of the energy storage system is connected with the corresponding bus of the section I through the other node.
4. The intelligent wind power, photovoltaic, and generator coupled multi-energy complementary microgrid structure of claim 1, wherein said intermittent power sources include photovoltaic power generation power sources, wind power generation power sources.
5. The intelligent microgrid structure of coupling wind power, photovoltaic and generator functions of claim 1, characterized in that the controllable power source comprises a gas generator I and a gas generator II.
6. The multi-energy complementary intelligent microgrid structure for coupling wind power, photovoltaic and electric generators, according to claim 1, characterized in that the energy storage system comprises a first energy storage battery and a second energy storage battery, the first energy storage battery is connected with the I section bus bar through a first energy storage converter, the second energy storage battery is connected with the I section bus bar through a second energy storage converter, and the second energy storage battery is connected with the II section bus bar through a third energy storage converter.
7. The intelligent microgrid structure capable of realizing multi-energy complementation and coupling wind power, photoelectricity and power generators of claim 1, wherein a load of a standby fire pump room of the fire fighting line is connected with the I section bus through the node.
8. The wind, photovoltaic and generator coupled multi-energy complementary intelligent microgrid structure of claim 1, characterized in that a main fire pump room load of said fire-fighting line is connected with said section II bus through said node.
9. The intelligent microgrid structure capable of realizing multi-energy complementation and coupling wind power, photoelectricity and power generator according to claim 7 or 8, characterized in that a main fire pump, a standby fire pump and a fire pump are further arranged on the fire-fighting line.
10. The intelligent microgrid structure for coupling wind power, photovoltaic and electric generator of any of claims 1 to 8, characterized by further comprising: and the power input end of the power load is connected with the trunk circuit of the I section bus through the load switch group.
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| CN113765106A (en) * | 2021-09-25 | 2021-12-07 | 中机国能电力工程有限公司 | Self-circulation multi-energy complementary synchronous grid-connected circuit |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113765106A (en) * | 2021-09-25 | 2021-12-07 | 中机国能电力工程有限公司 | Self-circulation multi-energy complementary synchronous grid-connected circuit |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |