CN114759610B - Wind-light combustion comprehensive energy system based on wind-light virtual synchronous machine - Google Patents
Wind-light combustion comprehensive energy system based on wind-light virtual synchronous machine Download PDFInfo
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- 230000001360 synchronised effect Effects 0.000 title claims abstract description 60
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- 238000010248 power generation Methods 0.000 claims abstract description 64
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- 239000003345 natural gas Substances 0.000 claims abstract description 22
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
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Classifications
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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
- H02J3/46—Controlling of the sharing of output between the generators, converters, or transformers
- H02J3/466—Scheduling the operation of the generators, e.g. connecting or disconnecting generators to meet a given demand
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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
- H02J3/28—Arrangements for balancing of the load in a network by storage of energy
- H02J3/32—Arrangements for balancing of the load in a network by storage of energy using batteries with converting means
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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
- H02J3/40—Synchronising a generator for connection to a network or to another generator
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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
- H02J2203/00—Indexing scheme relating to details of circuit arrangements for AC mains or AC distribution networks
- H02J2203/10—Power transmission or distribution systems management focussing at grid-level, e.g. load flow analysis, node profile computation, meshed network optimisation, active network management or spinning reserve management
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Abstract
The invention discloses a wind-light combustion integrated energy system based on a wind-light virtual synchronous machine, which relates to the technical field of integrated energy system design, solves the problems that electric, cold and heat supply and demand balance and electric power flexible regulation in a park are difficult to realize, and comprises an energy supply system, a dispatching control system and an energy user, wherein the energy supply system comprises a wind-light power generation virtual synchronous machine subsystem, an electric storage device, a cold/heat storage subsystem and a natural gas distributed energy supply subsystem, and the dispatching control system comprises an integrated energy system control center, an information database, an electric power network, a heat supply/cold supply network and an information network.
Description
Technical Field
The invention relates to the technical field of comprehensive energy system design, in particular to a wind-light combustion comprehensive energy system based on a wind-light virtual synchronous machine.
Background
The industrial park has the characteristics of developed industrial users and complex load demands, but the problems of unreasonable energy structure, low energy utilization rate, large load peak-valley difference, environmental pollution and the like generally exist. The industrial park contains loads in different forms of cold, heat and electricity, so that multiple energy sources such as wind, light, combustion, storage and the like need to be comprehensively considered during energy source configuration, and the optimal combination of the energy sources is realized. Through carrying out reasonable capacity configuration to wind, light, fire, energy storage source, not only can satisfy garden load demand, can also reduce system cost, guarantee that the garden is reliably, economically operates.
The China patent with the application number 202010381872.2 discloses an urban energy Internet system, which comprises an energy interconnection physical network layer, an energy information fusion supporting layer and an energy operation management service layer, wherein the energy information fusion supporting layer comprises an intelligent meter and a physical information system which are sequentially connected, the energy operation management service layer comprises an energy service provider, an energy service platform and an energy user, the energy service provider and the energy user perform bidirectional interaction through the energy service platform, and the energy service provider and the energy are used for being in communication connection with the energy information fusion supporting layer; the energy interconnection physical network layer comprises an energy conversion system, and the energy conversion system comprises a fuel gas network, an electric power network and a thermal network which are connected in pairs. Compared with the prior art, the invention realizes the deep fusion and optimized sharing of energy information on the basis of the fusion of multiple types of energy systems, provides a common energy exchange and sharing platform for energy suppliers and consumers, but fails to deeply realize the deep fusion of multiple renewable energy technologies and energy Internet technologies.
The China patent with the application number 202010441142.7 discloses a renewable energy power generation and waste heat recycling integrated energy system oriented to a data center, which comprises an external power grid, a geothermal power generation system, a data center, a CO 2 air conditioning system, a three-way valve, a cooling tower, an energy utilization building, a micro-grid system and a controller. The invention applies renewable energy (geothermal energy) power generation to the data center, on one hand, reduces the problems of environmental pollution, fossil energy consumption and the like caused by thermal power generation, and on the other hand, improves the reliability and stability of the renewable energy power generation system. In addition, waste heat generated by the data center is recovered through the CO 2 air conditioning system, so that the energy-saving building is heated, the overall energy utilization efficiency of the data center is improved, but the user layer, the dispatching control layer and the energy supply layer cannot be deeply interconnected in the aspects of energy production, manufacturing, storage, transportation and the like.
The China patent with the application number 201910070197.9 discloses an energy Internet system based on natural gas, hydrogen and electric power and a working method, wherein the energy Internet system comprises a hydrogen system, a gas system, a renewable energy power generation system and a waste heat utilization system, the renewable energy power generation system is connected with the hydrogen system, the hydrogen system is respectively connected with the gas system and the waste heat utilization system, and the gas system is connected with the waste heat utilization system; the hydrogen system, the gas burning system and the renewable energy power generation system are also connected with the power grid system, and the gas burning system is also connected with a gas burning pipeline; the hydrogen system is also connected with an on-site user and a hydrogen user side of the fuel cell, and the waste heat utilization system is also connected with a hot user side and a cold/hot user side. The invention preferentially utilizes renewable energy sources to produce hydrogen by electrolysis of water, organically combines a hydrogen energy source utilization system with a fuel gas distributed type and a power grid, overcomes the defects in the existing energy network, not only solves the problem of natural gas shortage, but also has the function of power grid peak regulation, has great energy saving and environmental protection benefits, but fails to solve the problem of insufficient power generation and consumption of renewable energy sources due to self intermittence and instability in a comprehensive energy source system.
The technical scheme disclosed above cannot realize the maximum utilization of renewable energy sources in a park, balance of electricity, cold and heat supply and demand and electric power flexible regulation in the park, and cannot realize comprehensive utilization of distributed clean energy sources and interconnection of production, manufacture, storage, transportation and the like of the energy sources, so that the emission of harmful gases such as carbon monoxide, carbon dioxide, sulfide, nitride and the like is difficult to be effectively inhibited.
For the problems in the related art, no effective solution has been proposed at present.
Disclosure of Invention
The invention aims to provide a wind-light combustion comprehensive energy system based on a wind-light virtual synchronous machine, which aims to solve the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions: the wind-light combustion storage comprehensive energy system based on the wind-light virtual synchronous machine comprises an energy supply system, a dispatching control system and an energy user, wherein the energy supply system comprises a wind-light power generation virtual synchronous machine subsystem, an electric storage device, a cold/heat storage subsystem and a natural gas distributed energy supply subsystem, the dispatching control system comprises a comprehensive energy system control center, an information database, an electric power network, a heat supply/cold supply network and an information network, the energy supply system is connected with the dispatching control system through the electric power network, the heat supply/cold supply network and the information network, the energy user is connected with the dispatching control system through the electric power network, the heat supply/cold supply network and the information network, the power generation virtual synchronous machine subsystem is connected with the electric power network and the electric storage device, the natural gas distributed energy supply subsystem is connected with an electric power network and a heat supply/cold supply network, the cold accumulation/heat accumulation subsystem is interconnected with the heat supply/cold supply network to realize bidirectional flow of heat energy and cold energy, the electric power storage device is interconnected with the electric power network to realize power multidirectional transmission, the electric power network and the heat supply/cold supply network are both connected with energy users, the information network is interconnected with the energy users, the integrated energy system control center is interconnected with the information network, the integrated energy system control center is interconnected with an information database, the information database is interconnected with the information network, and the heat supply/cold supply network and the electric power network are both interconnected with the information network.
Further, the natural gas distributed energy supply subsystem comprises a gas turbine power generation device, a waste heat boiler, an afterburning boiler, a steam type refrigerator and an electric refrigerator, wherein the input end of the gas turbine power generation device is connected with a natural gas pipeline, the output end of the gas turbine power generation device is connected with the waste heat boiler through a flue gas pipeline, the waste heat boiler is connected with the steam type refrigerator through a steam pipeline, the waste heat boiler and the afterburning boiler are connected with a water supply system, the afterburning boiler is connected with the natural gas pipeline, the output ends of the waste heat boiler and the afterburning boiler are connected with the input end of the steam type refrigerator through a steam pipeline, the electric refrigerator is connected with an electric power network, and the gas turbine power generation device, the waste heat boiler, the afterburning boiler, the steam type refrigerator and the electric refrigerator are connected with a heat supply/cooling network.
Further, the wind-solar power generation virtual synchronous machine subsystem comprises a wind power generation device, a photovoltaic power generation device and a virtual synchronous machine, wherein the wind power generation device and the photovoltaic power generation device are connected with the virtual synchronous machine through a direct current bus.
Further, the wind power generation device comprises a wind power generator set and a rectifier AC/DC, wherein the output end of the wind power generator set is connected with the input end of the rectifier AC/DC, and the output end of the rectifier AC/DC is connected with a direct current bus.
Further, the photovoltaic power generation device comprises a solar photovoltaic panel and a first direct current chopper DC/DC, wherein the output end of the photovoltaic power generation device is connected with the input end of the first direct current chopper DC/DC, and the output end of the direct current chopper DC/DC is connected with a direct current bus.
Further, the virtual synchronous machine comprises a power electronic converter, a second direct current chopper DC/DC and a wind-light virtual synchronous control system, wherein the power electronic converter is connected with a direct current bus, the second direct current chopper DC/DC is interconnected with the direct current bus, the power storage device is interconnected with the second direct current chopper DC/DC, the power electronic converter is connected with a power network and the wind-light virtual synchronous control system, and the wind-light virtual synchronous control system is connected with the power electronic converter.
Further, the electrical storage device is a battery, which is DC/DC interconnected with the second direct current chopper.
Compared with the prior art, the invention has the following beneficial effects:
1. The wind-light combustion comprehensive energy system based on the wind-light virtual synchronous machine can meet various energy requirements of users, realize multi-energy coupling operation, greatly improve energy utilization rate and economy, can realize integrated information service of production, purchase and sale based on an energy information physical fusion platform, provides participating energy interconnection operation channel facilities for various subjects such as enterprises, electricity selling companies, users and distributed resource owners, unblocks fund circulation in the energy field range, can improve energy structures in the area, and lays an important energy foundation for future economic development of the area;
2. The invention is based on the wind-solar power generation virtual synchronous machine technology, furthest utilizes renewable energy sources in the region, plays a good role in inhibiting the emission of harmful gases such as carbon monoxide, carbon dioxide, sulfides, nitrides and the like, and simultaneously, the electromagnetic pollution caused by the wind-solar power generation virtual synchronous machine is far smaller than that caused by the traditional centralized power generation mode because the wind-solar power generation virtual synchronous machine has relatively low voltage level in the power generation mode by taking energy nearby and supplying power.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a block diagram of a wind-solar energy storage integrated energy system based on a wind-solar virtual synchronous machine according to an embodiment of the invention;
FIG. 2 is a block diagram of a distributed natural gas energy supply subsystem in a wind-solar-fuel-storage integrated energy system based on a wind-solar virtual synchronous machine according to an embodiment of the invention;
FIG. 3 is a block diagram of a wind-solar energy storage integrated energy system wind-solar power generation virtual synchronous machine subsystem based on a wind-solar virtual synchronous machine according to an embodiment of the invention;
fig. 4 is a graph of typical solar, thermal, and electrical load distribution for a particular area in a case;
Fig. 5 is a graph of a typical daily solar resource distribution at a location in a case;
Fig. 6 is a graph of a typical solar wind speed profile for a particular area in a case;
FIG. 7 is a three-phase voltage waveform diagram of a virtual synchronous machine in the case;
Fig. 8 is a frequency waveform diagram of a virtual synchronous machine in the case.
Reference numerals:
1. An energy supply system; 2. a dispatch control system; 3. an energy user; 4. a wind-light power generation virtual synchronous machine subsystem; 5. an electric storage device; 6. a cold/heat storage subsystem; 7. a natural gas distributed energy supply subsystem; 8. a comprehensive energy system control center; 9. an information database; 10. a power network; 11. a heating/cooling network; 12. an information network; 13. a gas turbine power plant; 14. a waste heat boiler; 15. afterburning boiler; 16. a steam type refrigerator; 17. an electric refrigerator; 18. a water supply system; 19. a wind power generation device; 20. a photovoltaic power generation device; 21. a virtual synchronous machine; 22. a direct current bus; 23. a wind power generator set; 24. a rectifier AC/DC; 25. a solar photovoltaic panel; 26. a first direct current chopper DC/DC; 27. a power electronic converter; 28. a second direct current chopper DC/DC; 29. a wind-light virtual synchronous control system.
Detailed Description
The invention is further described below with reference to the accompanying drawings and detailed description:
Examples:
Referring to fig. 1-3, a wind-solar-fuel storage integrated energy system based on a wind-solar virtual synchronous machine according to an embodiment of the present invention includes an energy supply system 1, a dispatching control system 2 and an energy user 3, wherein the energy supply system 1 includes a wind-solar power generation virtual synchronous machine subsystem 4, an electric storage device 5, a cold/heat accumulation subsystem 6 and a natural gas distributed energy supply subsystem 7, the dispatching control system 2 includes an integrated energy system control center 8, an information database 9, an electric power network 10, a heat supply/cold supply network 11 and an information network 12, the energy supply system 1 is connected with the dispatching control system 2 through the electric power network 10, the heat supply/cold supply network 11 and the information network 12, the energy user 3 is connected with the dispatching control system 2 through the electric power network 10, the heat supply/cold supply network 11 and the information network 12, the wind-solar power generation virtual synchronous machine subsystem 4 is connected with the electric power network 10 and the electric storage device 5, renewable energy power is processed by the virtual synchronous machine 21 and then supplied to the integrated energy micro-grid composed of the electric power network 10, the heat supply network 11 and the information network 12, the natural gas distributed sub-air supply subsystem 7 is connected with the electric power supply network 10, the heat/cold supply network 11 and the information network 12, the natural gas distributed sub-air supply network 7 is connected with the heat supply network 11, the heat supply network 3 is connected with the heat supply network 11, the heat supply user is connected with the energy user 3 through the electric power network 10, the heat supply/cold supply network 11 and the information network 12, the heat supply network is connected with the energy user 3 is connected with the energy supply network through the electric power network 5, the heat supply network 5 and the heat supply network is connected with the energy supply network 1, the comprehensive energy system control center 8 is interconnected with the information network 12, the comprehensive energy system control center 8 is interconnected with the information database 9, the information database 9 is interconnected with the information network 12, the heat supply/cold supply network 11 and the electric power network 10 are both interconnected with the information network 12 so as to realize collaborative optimization scheduling of various energy sources in an area, wherein the energy source user 3 comprises resident users, office users and the like, the energy supply system 1 aims to provide the energy source user 3 and the electricity consumption/heat/cold energy of the comprehensive energy system, the scheduling control system 2 realizes interaction and scheduling of information flow and electricity/heat/cold energy by combining an optimized scheduling algorithm through the comprehensive energy system control center 8 and the information database 9, thereby meeting various energy source requirements of users, realizing multi-energy coupling operation, greatly improving the energy source utilization rate and economy, and providing information services integrating production, purchasing-selling and the like for various main bodies such as enterprises, electric power companies, users, distributed resource owners and the like, providing energy source interconnection facilities for the important areas in the future energy source development areas, and laying important energy source development areas in the future.
In a further embodiment, the natural gas distributed energy supply subsystem 7 comprises a gas turbine power generation device 13, a waste heat boiler 14, an afterburner 15, a steam type refrigerator 16 and an electric refrigerator 17, the natural gas distributed energy supply subsystem 7 aims at providing electricity/heat/cold energy for energy users 3 and integrated energy systems, the input end of the gas turbine power generation device 13 is connected with a natural gas pipeline, the output end of the gas turbine power generation device 13 is connected with the waste heat boiler 14 through a flue gas pipeline, the waste heat boiler 14 is connected with the steam type refrigerator 16 through a steam pipeline, the waste heat boiler 14 and the afterburner 15 are connected with a water supply system 18, the afterburner 15 is connected with a natural gas pipeline, the waste heat boiler 14 and the output end of the afterburner 15 are connected with the input end of the steam type refrigerator 16 through a steam pipeline, the electric refrigerator 17 is connected with the electric power network 10, the waste heat boiler 14, the afterburner 15, the steam type refrigerator 16 and the electric power supply network 11 and the gas turbine power generation device 13, the gas turbine power generation device 16 and the electric power supply network 11, the steam type refrigerator 17 are connected with the heat/cold energy supply network 11, and the electric power supply network 11 and the electric energy/cold energy supply network 11 are provided for the two heat/cold energy supply networks 11.
In a further embodiment, the wind-solar power generation virtual synchronous machine subsystem 4 comprises a wind power generation device 19, a photovoltaic power generation device 20 and a virtual synchronous machine 21, wherein the wind power generation device 19 and the photovoltaic power generation device 20 are connected with the virtual synchronous machine 21 through a direct current bus 22, and the virtual synchronous machine 21 can realize the regulation of the voltage and the frequency of the micro-grid through an active power-frequency control loop and a reactive power-voltage control loop.
In a further embodiment, the wind power plant 19 comprises a wind power plant 23 and a rectifier AC/DC24, the output of the wind power plant 23 being connected to the input of the rectifier AC/DC24, the output of the rectifier AC/DC24 being connected to the direct current bus 22.
In a further embodiment, the photovoltaic power plant 20 comprises a solar photovoltaic panel 25 and a first DC chopper DC/DC26, the output of the photovoltaic power plant 20 being connected to the input of the first DC chopper DC/DC26, the output of the DC chopper DC/DC being connected to the DC bus 22.
In a further embodiment, the virtual synchronous machine 21 comprises a power electronic converter 27, a second direct current chopper DC/DC28 and a wind-solar virtual synchronous control system 29, the power electronic converter 27 being connected to the direct current bus 22, the second direct current chopper DC/DC28 being interconnected to the direct current bus 22, the electrical storage device 5 being interconnected to the second direct current chopper DC/DC28, the power electronic converter 27 being connected to the power network 10 and the wind-solar virtual synchronous control system 29, the wind-solar virtual synchronous control system 29 being connected to the power electronic converter 27, wherein the electrical storage device 5 provides electrical support for the frequency modulation link of the virtual synchronous machine 21.
In a further embodiment, the electrical storage device 5 is a battery, which is interconnected with a second direct current chopper DC/DC 28.
The invention is based on wind-light power generation virtual synchronous machine technology, furthest utilizes renewable energy sources in a region, plays a good role in inhibiting emission of harmful gases such as carbon monoxide, carbon dioxide, sulfide, nitride and the like, and simultaneously, because the mode of nearby energy taking and power supply enables the voltage level to be relatively low during power generation, the electromagnetic pollution is far less than that of the traditional centralized power generation mode
In order to facilitate understanding of the above technical solutions of the present invention, the following details are given for the case of the present invention in the practical application process.
As shown in fig. 4, the peak electricity consumption period from 8 am to 11 am is known as typical solar cooling, heating and electric load distribution in a certain place, and the electric load is maintained at 4000 to 5000kW in the time zone from fig. 4. The electricity consumption is low from 23 to 8 am on the next day, the electricity load is kept at about 2500kW in the time interval, about 50% of the peak value of the electricity consumption, the peak value of the electricity consumption is about 9 am to 19 pm, and the peak value of the cold load is kept between 10000kW and 11500 kW; the night cold load is relatively low, the minimum is about 3000kW, the hot water load is mainly used for washing clothes and other domestic water, the consumption amount and resident work and rest time are greatly related, the heat load demand amount is extremely low in the period from 24 am to 6 am, and the heat peak period occurs in two time periods from 7 am to 10 am and from 18 pm to 23 pm.
The solar energy resource distribution for this ground is shown in FIG. 5, where the sun is present at about peak at 12 noon, about 652W/m 2, from 6 am to 18 pm.
The typical daily wind speed profile for this area is shown in FIG. 6, where the daily wind speed fluctuates in the range of about 6.6m/s to 7.5m/s, peaking at about 17 pm, about 7.48m/s.
After renewable energy is networked through direct current, the renewable energy is connected into the power network 10 through a virtual synchronous machine 21 (VSG), the virtual synchronous machine 21 can realize the regulation of micro-grid voltage and frequency through an active power-frequency control loop and a reactive power-voltage control loop, the voltage of a renewable energy power direct current bus 22 can be controlled through a power electronic converter 27, and when the voltage of the direct current bus 22 is constant, the virtual synchronous machine 21 is connected with the grid voltage and frequency as shown in fig. 7 and 8.
According to the kind of the ground load, a Centaur 50 type gas turbine is selected as a motive power device, the rated power of the Centaur 50 is 4600kW, a waste heat boiler, a lithium bromide absorption refrigerator and electric refrigerating capacity are selected according to the maximum heat and cold load quantity of a demand side and the heat carried by exhaust gas of the gas turbine, the maximum heat and cold load quantity are 8000kW and 10000kW respectively, the electric refrigerating capacity is 2000kW, the installed solar photovoltaic energy is 1000kW, the fan is 1000kW, the total storage battery is 26500kWh, and the data of each device under the load are shown in the following table:
Annotation: the negative sign "-" in the above table indicates the battery charging time.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The wind-solar-fuel-storage comprehensive energy system based on the wind-solar virtual synchronous machine is characterized by comprising an energy supply system (1), a dispatching control system (2) and an energy user (3), wherein the energy supply system (1) comprises a wind-solar-power-generation virtual synchronous machine subsystem (4), an electric storage device (5), a cold accumulation/heat accumulation subsystem (6) and a natural gas distributed energy supply subsystem (7), the dispatching control system (2) comprises a comprehensive energy system control center (8), an information database (9), an electric power network (10), a heat supply/cold supply network (11) and an information network (12), the energy supply system (1) is connected with the dispatching control system (2) through the electric power network (10), the heat supply/cold supply network (11) and the information network (12), the energy user (3) is connected with the dispatching control system (2) through the electric power network (10), the heat supply/cold supply network (11) and the information network (12), the wind-solar-power-generation virtual synchronous machine subsystem (4) is connected with the electric power network (10) and the electric storage device (5), the natural gas distributed energy supply subsystem (7) is connected with the electric power supply network (10) and the heat supply network (11), the cold accumulation/heat storage subsystem (6) is interconnected with the heat supply/cold supply network (11) to realize bidirectional flow of heat energy and cold energy, the electric power storage device (5) is interconnected with the electric power network (10) to realize electric power multi-directional transmission, the electric power network (10) and the heat supply/cold supply network (11) are both connected with the energy user (3), the information network (12) is interconnected with the energy user (3), the comprehensive energy system control center (8) is interconnected with the information network (12), the comprehensive energy system control center (8) is interconnected with the information database (9), the information database (9) is interconnected with the information network (12), and the heat supply/cold supply network (11) and the electric power network (10) are both interconnected with the information network (12);
The natural gas distributed energy supply subsystem (7) comprises a gas turbine power generation device (13), a waste heat boiler (14), an afterburner (15), a steam type refrigerator (16) and an electric refrigerator (17), wherein the input end of the gas turbine power generation device (13) is connected with a natural gas pipeline, the output end of the gas turbine power generation device (13) is connected with the waste heat boiler (14) through a flue gas pipeline, the waste heat boiler (14) is connected with the steam type refrigerator (16) through a steam pipeline, the waste heat boiler (14) and the afterburner (15) are connected with a water supply system (18), the afterburner (15) is connected with the natural gas pipeline, the waste heat boiler (14) and the output end of the afterburner (15) are connected with the input end of the steam type refrigerator (16) through the steam pipeline, the electric refrigerator (17) is connected with an electric power network (10), the gas turbine power generation device (13) and the waste heat boiler (14) are connected with the afterburner (15), and the steam type refrigerator (16) and the electric refrigerator (17) are connected with the cooling network (11).
2. The wind-light-fuel storage integrated energy system based on the wind-light virtual synchronous machine according to claim 1, wherein the wind-light power generation virtual synchronous machine subsystem (4) comprises a wind power generation device (19), a photovoltaic power generation device (20) and a virtual synchronous machine (21), and the wind power generation device (19) and the photovoltaic power generation device (20) are connected with the virtual synchronous machine (21) through a direct current bus (22).
3. A wind-light-combustion integrated energy system based on a wind-light virtual synchronous machine according to claim 2, characterized in that the wind power generation device (19) comprises a wind power generation unit (23) and a rectifier AC/DC (24), wherein the output end of the wind power generation unit (23) is connected with the input end of the rectifier AC/DC (24), and the output end of the rectifier AC/DC (24) is connected with a direct current bus (22).
4. A wind-solar hybrid energy storage system based on a wind-solar virtual synchronous machine according to claim 3, wherein the photovoltaic power generation device (20) comprises a solar photovoltaic panel (25) and a first direct current chopper DC/DC (26), the output end of the photovoltaic power generation device (20) is connected with the input end of the first direct current chopper DC/DC (26), and the output end of the direct current chopper DC/DC is connected with a direct current bus (22).
5. A wind-solar energy-storage integrated energy system based on a wind-solar virtual synchronous machine according to claim 4, characterized in that the virtual synchronous machine (21) comprises a power electronic converter (27), a second direct current chopper DC/DC (28) and a wind-solar virtual synchronous control system (29), the power electronic converter (27) being connected to a direct current bus (22), the second direct current chopper DC/DC (28) being interconnected to the direct current bus (22), the electrical storage device (5) being interconnected to the second direct current chopper DC/DC (28), the power electronic converter (27) being connected to a power network (10) and the wind-solar virtual synchronous control system (29), the virtual synchronous control system (29) being connected to the power electronic converter (27).
6. A wind-solar hybrid energy storage system based on a virtual synchrotron of wind-solar energy according to claim 5, characterized in that the electric storage device (5) is a battery, which is interconnected with a second direct current chopper DC/DC (28).
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