Comprehensive energy system and control method

Abstract

The invention discloses a comprehensive energy system and a control method, the comprehensive energy system comprises a hydrogen production system and a hydrogen storage and use system, and the operation mode is a first operation mode and a second operation mode; the first operation mode is that the photovoltaic cell panel and the wind power generation device are kept to operate continuously, the total electric quantity generated by the integrated energy system is obtained, and first judgment is conducted on the total electric quantity generated by the integrated energy system; the second operation mode is that the photovoltaic cell panel, the wind power generation device, the biomass gasification system, the two-stage organic Rankine cycle system, the absorption type refrigeration system and the tubular seawater desalination system are kept to operate continuously, the total electric quantity generated by the comprehensive energy system is obtained, and second judgment is conducted on the total electric quantity generated by the comprehensive energy system; according to the comprehensive energy system, renewable energy sources can be efficiently consumed, peak load shifting of power grid power is achieved on the time scale through hydrogen energy storage, and meanwhile waste heat is fully recycled so that the efficiency of the system can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of energy systems, and in particular to an integrated energy system and a control method. Background Art

[0002] With the rapid economic development and accelerated pace of industrialization worldwide, energy shortages, global warming and other problems are becoming increasingly severe, and the development and utilization of new energy sources are imminent. Solar energy and wind energy are clean, pollution-free, resource-rich and widely distributed renewable energy sources. Making full use of renewable energy sources such as solar energy and wind energy for power generation and hydrogen production can greatly reduce the consumption of fossil energy and improve the utilization rate and absorption capacity of renewable energy. In addition, integrating solar energy and wind energy into the energy system can diversify the energy structure, create a more resilient and flexible grid infrastructure, reduce the impact of fossil fuel price fluctuations and unstable power supply, and reduce carbon emissions, which will inevitably become an important choice for the sustainable development of human society. According to a survey by the International Energy Agency, renewable energy power generation is expected to increase by 52% by 2026, reaching 11,300TWh, of which solar energy and wind power generation will account for the majority; at the same time, the thermal utilization of renewable energy such as biomass has also received widespread attention, and is expected to grow by 25% by 2026. Biomass is the most widely used non-fossil fuel. It produces a large amount of solid or liquid waste in the agricultural and food industries. If it is not properly managed, it will cause serious pollution problems to the environment and will also lose a lot of heat. It is worth noting that during the gasification process, biomass fuel is converted from a low-heat state to a high-heat synthesis gas, which can be used in various power generation cycles. Due to the large randomness and volatility of solar energy and wind energy, the combination of solar energy, wind energy and biomass energy can improve the stability and energy efficiency of the system and reduce greenhouse gas emissions.

[0003] In recent years, energy storage has played a key role in overcoming the intermittent and volatile nature of renewable energy generation. Among all energy storage methods, hydrogen energy storage, as a new type of efficient and feasible energy storage method, can improve the system's rapid response capability through renewable energy hydrogen production and storage, so as to smooth the fluctuating output of renewable energy and enable renewable energy to be more efficiently integrated into the power grid. At the same time, hydrogen fuel cells can be flexibly deployed in power systems of different geographical locations and scales. They can be used as part of a distributed energy system, allowing power generation closer to consumers and reducing transmission losses. In summary, in the current domestic and international energy context, it is particularly necessary to propose an integrated energy system and control method based on renewable energy complementary power generation and hydrogen production, storage and use. Summary of the invention

[0004] In view of the above-mentioned problems, the present invention is proposed.

[0005] Therefore, the technical problem solved by the present invention is: the present invention solves the problems of price fluctuations of fossil fuels and unstable power supply, large randomness and volatility of renewable energy, and emission of greenhouse gases that pollute the environment.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0007] In a first aspect, the present invention provides an integrated energy system, including: a photovoltaic panel, a wind power generation device, a biomass gasification system, a two-stage organic Rankine cycle system, an absorption refrigeration system, a tubular seawater desalination system, a proton exchange membrane electrolyzer system, a hydrogen gas storage device, and a proton exchange membrane fuel cell system;

[0008] The electricity generated by the photovoltaic panels, the wind power generation device, the two-stage organic Rankine cycle system and the proton exchange membrane fuel cell system is transmitted to the power bus and delivered to the power grid, and the power grid supplies the electricity to users;

[0009] The waste heat of the high-temperature tail gas generated by the biomass gasification system is sequentially absorbed by the first evaporator of the two-stage organic Rankine cycle system, the generator of the absorption refrigeration system, and the seawater tubular distiller of the tubular seawater desalination system;

[0010] The hydrogen gas storage device is connected to the proton exchange membrane electrolyzer system and the proton exchange membrane fuel cell system respectively.

[0011] As a preferred solution of the comprehensive energy system described in the present invention, the absorption refrigeration system includes:

[0012] A preset portion of the cooling capacity generated by the third evaporator in the absorption refrigeration system is introduced into the second condenser of the two-stage organic Rankine cycle system to provide all the cooling capacity required by the second condenser of the two-stage organic Rankine cycle and to reduce the condensing pressure and condensing temperature of the two-stage organic Rankine cycle system to generate high power generation, and the remaining preset portion of cooling capacity is supplied to the user.

[0013] In a second aspect, the present invention provides a control method for an integrated energy system, including: a first operation mode and a second operation mode;

[0014] The first operation mode is: keep the photovoltaic panels and the wind power generation device in continuous operation, obtain the total amount of electricity generated by the integrated energy system, and make a first judgment on the total amount of electricity generated by the integrated energy system;

[0015] The second operating mode is: keep the photovoltaic panels, wind power generation equipment, biomass gasification system, two-stage organic Rankine cycle system, absorption refrigeration system and tubular seawater desalination system in continuous operation, obtain the total amount of electricity generated by the integrated energy system, and make a second judgment on the total amount of electricity generated by the integrated energy system.

[0016] As a preferred solution of the control method of the integrated energy system of the present invention, the first judgment includes:

[0017] When the total amount of electricity generated by the integrated energy system is greater than the user's electricity demand, the biomass gasification system, the two-stage organic Rankine cycle system, the absorption refrigeration system, the tubular seawater desalination system and the proton exchange membrane fuel cell system stop working, and the proton exchange membrane electrolyzer system is started;

[0018] Obtain water sources outside the integrated energy system, transport the water to the proton exchange membrane electrolyzer system, provide excess electricity in the power grid to the proton exchange membrane electrolyzer system to electrolyze the water to produce hydrogen and store energy, and convert excess electricity in the power grid into hydrogen and store it in a hydrogen storage device.

[0019] As a preferred solution of the control method of the integrated energy system of the present invention, the first judgment further includes:

[0020] When the total amount of electricity generated by the integrated energy system is less than the user's electricity demand, the proton exchange membrane electrolyzer system stops working and the biomass gasification system, two-stage organic Rankine cycle system, absorption refrigeration system, tubular seawater desalination system and proton exchange membrane fuel cell system are started;

[0021] The supplementary electricity generated by the first turbine, the second turbine and the proton exchange membrane fuel cell system of the two-stage organic Rankine cycle system is transmitted to the power grid and supplied to users together with the electricity generated by the photovoltaic panels and wind power generation devices.

[0022] As a preferred solution of the control method of the integrated energy system of the present invention, the second judgment includes:

[0023] When the total amount of electricity generated by the integrated energy system is greater than the user's electricity demand, the proton exchange membrane fuel cell system stops working and the proton exchange membrane electrolyzer system starts;

[0024] The water supplied by tubular seawater desalination is used for electrolysis, and the excess electricity generated by the integrated energy system is provided to the proton exchange membrane electrolyzer system for electrolytic hydrogen production and energy storage. The excess electricity in the power grid is converted into hydrogen, and the tail gas generated by the biomass gasification system is removed by a separator and transmitted to the hydrogen storage device together with the hydrogen generated by the proton exchange membrane electrolyzer system.

[0025] As a preferred solution of the control method of the integrated energy system of the present invention, wherein: utilizing tubular seawater desalination to supply water for electrolysis comprises:

[0026] Obtain seawater, introduce the seawater into the tubular seawater desalination system through a seawater pump, mix it with the seawater recovered after the throttle valve reduces the pressure, pressurize the mixed seawater through a seawater pump, and enter the seawater tubular distiller;

[0027] The seawater in the seawater tube distiller is heated by the synthesis gas produced by biomass gasification, so that the seawater evaporates, and the evaporated water vapor condenses on the inner surface of the tube shell to obtain fresh water, which flows into the fresh water tank for storage;

[0028] When the proton exchange membrane electrolyzer system is in operation, the fresh water in the fresh water pool is preheated by a heat exchanger, and the preheated fresh water is transmitted to the proton exchange membrane electrolyzer system.

[0029] As a preferred solution of the control method of the integrated energy system of the present invention, the second judgment further includes:

[0030] When the total amount of electricity generated by the integrated energy system is less than the user's electricity demand, the proton exchange membrane electrolyzer system stops working and the proton exchange membrane fuel cell system is started to transmit the supplementary electricity generated by the proton exchange membrane fuel cell system and the electricity generated by the first turbine and second turbine of the two-stage organic Rankine cycle system, photovoltaic panels, and wind power generation equipment to the power grid and supply users.

[0031] In a third aspect, the present invention provides a computing device, comprising:

[0032] Memory and processor;

[0033] The memory is used to store computer-executable instructions, and the processor is used to execute the computer-executable instructions. When the computer-executable instructions are executed by the processor, the steps of the integrated energy system and the control method are implemented.

[0034] In a fourth aspect, the present invention provides a computer-readable storage medium storing computer-executable instructions, which, when executed by a processor, implement the steps of the integrated energy system and control method.

[0035] The beneficial effects of the present invention are as follows: the wind-solar complementary power generation system, the biomass gasification system, the two-stage organic Rankine cycle system, the absorption refrigeration system, the tubular seawater desalination system, the proton exchange membrane electrolyzer system, and the proton exchange membrane fuel cell system are organically combined, renewable energy is efficiently absorbed, and hydrogen energy storage is used to achieve "peak shaving and valley filling" of power grid electricity on a time scale. The system can also provide users with energy and materials such as electricity, heat, cooling, and fresh water. The high-temperature synthesis gas produced by biomass gasification releases heat in turn through the first evaporator of the two-stage organic Rankine cycle, the generator of the absorption refrigeration, and the seawater tubular distiller of the tubular seawater desalination system, thereby realizing the cascade utilization of waste heat and improving the power generation and efficiency of the system. The two integrated energy system operation modes play the role of "valley filling" and "peak shaving" of power grid electricity. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0037] Figure 1 An overall flow chart of a control method for a comprehensive energy system provided by the present invention;

[0038] Figure 2 A schematic diagram of a comprehensive energy system provided by the present invention. DETAILED DESCRIPTION

[0039] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the drawings of the specification. Obviously, the described embodiments are part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary persons in the art without creative work should fall within the scope of protection of the present invention.

[0040] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0041] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0042] The present invention is described in detail with reference to schematic diagrams. When describing the embodiments of the present invention, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0043] At the same time, in the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "upper, lower, inner and outer" are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first, second or third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0044] In the present invention, unless otherwise clearly specified and limited, the terms "install, connect, connect" should be understood in a broad sense, for example: it can be a fixed connection, a detachable connection or an integral connection; it can also be a mechanical connection, an electrical connection or a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0045] Example 1

[0046] Reference Figure 1 , as an embodiment of the present invention, provides a control method for an integrated energy system, comprising:

[0047] S100: The first operation mode is: keep the photovoltaic panels and the wind power generation device in continuous operation, obtain the total amount of electricity generated by the integrated energy system, and make a first judgment on the total amount of electricity generated by the integrated energy system;

[0048] In the embodiment of the present application, when the total amount of electricity generated by the integrated energy system is greater than the electricity demand of the user, the biomass gasification system, the two-stage organic Rankine cycle system, the absorption refrigeration system, the tubular seawater desalination system, and the proton exchange membrane fuel cell system stop working, and the proton exchange membrane electrolyzer system is started;

[0049] Obtain water sources outside the integrated energy system, transport the water to the proton exchange membrane electrolyzer system, provide excess electricity in the power grid to the proton exchange membrane electrolyzer system to electrolyze the water to produce hydrogen and store energy, and convert excess electricity in the power grid into hydrogen and store it in a hydrogen storage device.

[0050] Specifically, photovoltaic panels and wind power generation devices are kept in continuous operation. When the external solar energy and wind energy are very sufficient, the total amount of electricity generated by photovoltaic panels and wind power generation devices is greater than the load demand of users, which causes excess electricity in the power grid. When the total amount of electricity generated by the integrated energy system is greater than the electricity demand of users, the working state of the biomass gasification system, the two-stage organic Rankine cycle system, the absorption refrigeration system and the tubular seawater desalination system, as well as the proton exchange membrane fuel cell system and the proton exchange membrane electrolyzer system can achieve the effect of "peak shaving" of power in the power grid;

[0051] Hydrogen produced by water electrolysis can be used as an efficient energy storage method to convert excess electrical energy into chemical energy for storage, and then convert it back into electrical energy when needed. The external water supply method can ensure that the electrolysis process is not limited by natural water sources, improving the flexibility and reliability of the system. It is preferred to use external water supply for electrolysis, and it can also use recycled water and groundwater extraction for electrolysis;

[0052] It should be noted that recycled water requires additional treatment and storage facilities, which increases costs, while groundwater will have a negative impact on the ecological environment and water resource balance. Externally supplied water is not restricted by natural water sources during the electrolysis process and can be more precisely controlled, which can reduce the cost and environmental impact of wastewater treatment.

[0053] In the embodiment of the present application, when the total amount of electricity generated by the integrated energy system is less than the electricity demand of the user, the proton exchange membrane electrolyzer system stops working, and the biomass gasification system, the two-stage organic Rankine cycle system, the absorption refrigeration system, the tubular seawater desalination system and the proton exchange membrane fuel cell system are started;

[0054] The supplementary electricity generated by the first turbine, the second turbine and the proton exchange membrane fuel cell system of the two-stage organic Rankine cycle system is transmitted to the power grid and supplied to users together with the electricity generated by the photovoltaic panels and wind power generation devices.

[0055] Specifically, when external solar and wind energy is insufficient, the total amount of electricity generated by photovoltaic panels and wind power generation devices is less than the user's load demand, resulting in insufficient power supply in the power grid. The biomass gasification system produces synthesis gas, and the waste heat of the synthesis gas drives the two-stage organic Rankine cycle, absorption refrigeration and tubular seawater desalination system in turn. Finally, pure hydrogen is separated by the separator and supplied to the proton exchange membrane fuel cell for power generation.

[0056] The two-stage organic Rankine cycle system absorbs the heat of high-temperature syngas to generate electricity and transmits it to the power grid for electricity supplementation. The cold energy generated by the absorption refrigeration system is introduced into the two-stage organic Rankine cycle system to generate more electricity and achieve higher system efficiency.

[0057] The fresh water produced by the tubular desalination system will be directly supplied to users, and will provide electrolysis raw materials for the proton exchange membrane electrolyzer system when it is in operation. The proton exchange membrane fuel cell system uses the hydrogen and oxygen produced by the proton exchange membrane electrolyzer and the hydrogen produced by biomass gasification to produce electricity through electrochemical reactions, which is then transmitted to the power grid;

[0058] The electricity generated by the two-stage organic Rankine cycle system and the proton exchange membrane fuel cell system serves as supplementary power when the power grid is insufficient, playing the role of "filling the valley" of power in the grid.

[0059] It should be noted that in the case of insufficient solar and wind energy, supplementary electricity can be generated by operating biomass gasification systems, two-stage organic Rankine cycle systems, absorption refrigeration systems, tubular seawater desalination systems and proton exchange membrane fuel cell systems. This can ensure the stable operation of the power grid, avoid power outages or power restrictions caused by power shortages, use a variety of energy technologies to reduce dependence on a single energy source, and enhance the diversity and risk resistance of the energy system.

[0060] The proton exchange membrane fuel cell system uses hydrogen to generate electricity, integrating the hydrogen produced by biomass gasification and the hydrogen produced by proton exchange membrane electrolyzer into the power grid, promoting the widespread application of renewable energy. The synthesis gas and hydrogen produced by biomass gasification can be used as clean energy, reducing dependence on fossil fuels, reducing greenhouse gas emissions, and helping to achieve carbon neutrality goals.

[0061] S200: The second operation mode is: maintaining the continuous operation of the photovoltaic panels, wind power generation devices, biomass gasification system, two-stage organic Rankine cycle system, absorption refrigeration system and tubular seawater desalination system, obtaining the total amount of electricity generated by the integrated energy system, and performing a second judgment on the total amount of electricity generated by the integrated energy system.

[0062] In the embodiment of the present application, when the total amount of electricity generated by the integrated energy system is greater than the electricity demand of the user, the proton exchange membrane fuel cell system stops working and the proton exchange membrane electrolyzer system is started;

[0063] Using tubular desalination water for electrolysis, the excess electricity generated by the integrated energy system is provided to the proton exchange membrane electrolyzer system for electrolytic hydrogen production and energy storage, and the excess electricity in the power grid is converted into hydrogen. The tail gas generated by the biomass gasification system is removed by a separator and then transmitted to the hydrogen storage device together with the hydrogen generated by the proton exchange membrane electrolyzer system;

[0064] Specifically, the photovoltaic panels, wind power generation devices, biomass gasification system, two-stage organic Rankine cycle system, absorption refrigeration system and tubular seawater desalination system are kept in continuous operation. When the external solar energy and wind energy are very sufficient, the total amount of electricity generated by the photovoltaic panels, wind power generation devices and two-stage organic Rankine cycle system is greater than the user's load demand, which causes excess electricity in the power grid. According to the working status of the proton exchange membrane fuel cell system and the proton exchange membrane electrolyzer system, the "peak shaving" effect of the power grid is achieved;

[0065] In the embodiment of the present application, seawater is obtained, introduced into the tubular seawater desalination system through a seawater pump, and mixed with the seawater recovered after the throttle valve decompresses, and the mixed seawater is pressurized by a seawater pump and enters the seawater tubular distiller;

[0066] The seawater in the seawater tube distiller is heated by the synthesis gas produced by biomass gasification, causing the seawater to evaporate. The evaporated water vapor condenses on the inner surface of the tube shell to obtain fresh water, which flows into the fresh water tank for storage;

[0067] When the proton exchange membrane electrolyzer system is in operation, the fresh water in the fresh water pool is preheated by a heat exchanger, and the preheated fresh water is transmitted to the proton exchange membrane electrolyzer system.

[0068] Specifically, seawater desalination can not only provide fresh water resources, but also serve as a water source for electrolyzed water, thus realizing resource reuse. Through seawater desalination, dependence on fresh water resources can be reduced. It is preferred to use tubular seawater desalination water for electrolysis, and urban water supply systems and distilled water can also be used.

[0069] It should be noted that urban water supply systems are costly, consume energy during water treatment and distribution, and lead to high carbon emissions. The production process of distilled water may waste a lot of energy and water resources. However, the use of tubular seawater desalination to supply water for electrolysis can be adjusted according to different application environments and needs, with multiple effects and excellent water quality.

[0070] In an embodiment of the present application, when the total amount of electricity generated by the integrated energy system is less than the user's electricity demand, the proton exchange membrane electrolyzer system stops working and the proton exchange membrane fuel cell system is started to transmit the supplementary electricity generated by the proton exchange membrane fuel cell system and the electricity generated by the first turbine and the second turbine of the two-stage organic Rankine cycle system, the photovoltaic panels, and the wind power generation device to the power grid and supply the user.

[0071] Specifically, when external solar and wind energy is insufficient, the total amount of electricity generated by photovoltaic panels, wind power generation devices and two-stage organic Rankine cycle systems is less than the user's load demand, resulting in insufficient power supply in the power grid. The proton exchange membrane fuel cell system uses the hydrogen and oxygen generated by the proton exchange membrane electrolyzer system and the hydrogen generated by biomass gasification to produce electricity through electrochemical reactions. The electricity is transmitted to the power grid as supplementary power when the power grid is insufficient, playing the role of "filling the valley" of power in the power grid.

[0072] It should be noted that in the case of insufficient solar and wind energy, the electricity generated by the proton exchange membrane fuel cell system can supplement the power grid in a timely manner, avoid power outages or power restrictions caused by insufficient power, and improve the stability and reliability of the power grid. The proton exchange membrane electrolyzer system stores energy when there is excess power, and the proton exchange membrane fuel cell system releases energy when there is insufficient power, achieving efficient energy storage and release and optimizing the load balance of the power grid.

[0073] The above is a schematic scheme of a control method for an integrated energy system of this embodiment. It should be noted that the technical scheme of the integrated energy system and the technical scheme of the control method of the integrated energy system described above are of the same concept, and the details of the technical scheme of the integrated energy system not described in detail in this embodiment can be referred to the description of the technical scheme of the control method of the integrated energy system described above.

[0074] Reference Figure 2 In this embodiment, a comprehensive energy system is also provided, including: a photovoltaic panel 1, a wind power generation device 2, a biomass gasification system, a two-stage organic Rankine cycle system, an absorption refrigeration system, a tubular seawater desalination system, a proton exchange membrane electrolyzer system, a hydrogen gas storage device and a proton exchange membrane fuel cell system;

[0075] Specifically, the integrated energy system is composed of a hydrogen production system and a hydrogen storage and use system. The hydrogen production system includes a wind power generation device 2, a photovoltaic panel 1, a biomass gasification system, a two-stage organic Rankine cycle system, an absorption refrigeration system, a tubular seawater desalination system and a proton exchange membrane electrolyzer system.

[0076] The hydrogen storage and use system includes a hydrogen storage device 33, an oxygen storage device 34 and a proton exchange membrane fuel cell system.

[0077] The electricity generated by the photovoltaic panels 1, the wind power generation device 2, the two-stage organic Rankine cycle system and the proton exchange membrane fuel cell system is transmitted to the power bus and delivered to the power grid, which supplies the electricity to users;

[0078] Specifically, cooling water is passed through the photovoltaic cell panel 1. When generating electricity, the photovoltaic cell panel 1 transfers the waste heat of the cell to the cooling water on the user side so that the water is converted into hot water for the user to use.

[0079] The waste heat of the high-temperature tail gas generated by the biomass gasification system is successively absorbed by the first evaporator 9 of the two-stage organic Rankine cycle system, the generator 17 of the absorption refrigeration system, and the seawater tubular distiller 25 of the tubular seawater desalination system;

[0080] Specifically, in the biomass gasification system, the outlet of the biomass high-temperature gasifier 8 is connected to the air preheater 7, the air preheater 7 is connected to the first evaporator 9, the first evaporator 9 is connected to the generator 17, the generator 17 is connected to the heat exchanger 5, the heat exchanger 5 is connected to the seawater tube distiller 25, and the seawater tube distiller 25 is connected to the separator 30;

[0081] In the two-stage organic Rankine cycle system, the outlet of the first evaporator 9 is connected to the first turbine 10, the first turbine 10 is connected to the first condenser 11, the first condenser 11 is connected to the first organic working fluid pump 12, the first organic working fluid pump 12 is connected to the inlet of the first evaporator 9, the outlet of the first condenser 11 is connected to the second turbine 13, the second turbine 13 is connected to the heat exchanger 14, the heat exchanger 14 is connected to the second condenser 15, the second condenser 15 is connected to the second organic working fluid pump 16, and the second organic working fluid pump 16 is connected to the inlet of the first condenser 11;

[0082] The first turbine 10 and the second turbine 13 are connected to a generator, and the electric energy generated by the generator is transmitted to a power bus, and then transmitted to a power grid and finally supplied to users;

[0083] In the tubular seawater desalination system, the outlet of the seawater tubular distiller 25 is connected to the concentrated seawater tank 26, the concentrated seawater tank 26 is connected to the throttle valve 27, the throttle valve 27 is connected to the seawater pump 28, the seawater pump 28 is connected to the inlet of the seawater tubular distiller 25, the outlet of the seawater tubular distiller 25 is also connected to the freshwater tank 29, the freshwater tank 29 is connected to the heat exchanger 5, the generated fresh water is temporarily stored in the freshwater tank 29, and when the proton exchange membrane electrolyzer 6 is in operation, it is first preheated by the heat exchanger 5, and then sent to the proton exchange membrane electrolyzer 6 for use as an electrolysis raw material;

[0084] The hydrogen gas storage device 33 is connected to the proton exchange membrane electrolyzer system and the proton exchange membrane fuel cell system respectively;

[0085] In the proton exchange membrane electrolyzer system, the proton exchange membrane electrolyzer 6 is connected to the heat exchanger 5, and the proton exchange membrane electrolyzer 6 is also connected to the first steam-water separator 31 and the second steam-water separator 32, and the first steam-water separator 31 and the second steam-water separator 32 are respectively connected to the hydrogen storage device 33 and the oxygen storage device 34, and the proton exchange membrane electrolyzer 6 is also connected to the power bus. When there is excess power in the power grid, the excess power in the power grid is transmitted to the proton exchange membrane electrolyzer 6 through the power bus to electrolyze and produce hydrogen;

[0086] The inlet of the hydrogen storage device 33 is connected to the first steam-water separator 31 and the separator 30, the outlet of the hydrogen storage device 33 is connected to the proton exchange membrane fuel cell 37, a fuel preheater 36 is added between the hydrogen storage device 33 and the proton exchange membrane fuel cell 37, the outlet of the oxygen storage device 34 is connected to the proton exchange membrane fuel cell 37, and an oxygen preheater 35 is added between the oxygen storage device 34 and the proton exchange membrane fuel cell 37. The proton exchange membrane fuel cell 37 undergoes an electrochemical reaction to generate electricity, which is transmitted to the power bus and supplied to users through the power grid.

[0087] A preset portion of the cooling capacity generated by the third evaporator 20 in the absorption refrigeration system is introduced into the second condenser 15 of the two-stage organic Rankine cycle system, so as to provide all the cooling capacity required by the second condenser 15 of the two-stage organic Rankine cycle and reduce the condensing pressure and condensing temperature of the two-stage organic Rankine cycle system to generate high power generation, and the remaining preset portion of cooling capacity is supplied to the user.

[0088] In the absorption refrigeration cycle system, the generator 17 is connected to the third condenser 18, the third condenser 18 is connected to the expansion valve 19, the expansion valve 19 is connected to the third evaporator 20, the third evaporator 20 is connected to the absorber 21, the absorber 21 is connected to the solution pump 22, the solution pump 22 is connected to the regenerator 23, the regenerator 23 is connected to the generator 17, the regenerator 23 is also connected to the pressure reducing valve 24, and the pressure reducing valve 24 is connected to the absorber 21;

[0089] The absorber 21 exchanges heat with the cooling water from the user side, and then the cooling water is passed into the third condenser 18 for heat exchange, and the cooling water becomes hot water to be supplied to the user;

[0090] The third evaporator 20 is connected to the second condenser 15, and part of the cooling energy generated in the third evaporator 20 is provided to the second condenser 15, so that the two-stage organic Rankine cycle can generate more electricity to be transmitted to the power bus and the power grid, and the remaining cooling energy generated in the third evaporator 20 is supplied to users.

[0091] This embodiment also provides a computing device suitable for comprehensive energy system control, including:

[0092] Memory and processor; the memory is used to store computer executable instructions, and the processor is used to execute computer executable instructions to implement the control method of the integrated energy system proposed in the above embodiment.

[0093] This embodiment also provides a storage medium on which a computer program is stored. When the program is executed by a processor, the control method for realizing the integrated energy system as proposed in the above embodiment is implemented.

[0094] The storage medium proposed in this embodiment and the control method for realizing the integrated energy system proposed in the above embodiment belong to the same inventive concept. The technical details not fully described in this embodiment can be referred to the above embodiment, and this embodiment has the same beneficial effects as the above embodiment.

[0095] Example 2

[0096] Reference Figure 2 , which is an embodiment of the present invention, provides a comprehensive energy system, and verifies the feasibility and effect of the system of the present invention through the specific connection between hardware modules.

[0097] The integrated energy system consists of a hydrogen production system and a hydrogen storage and utilization system;

[0098] The hydrogen production system includes wind power generation devices, photovoltaic panels, biomass gasification (BG) system, two-stage organic Rankine cycle (D-ORC) system, absorption refrigeration (AR) system, tubular desalination (SD) system and proton exchange membrane electrolyzer (PEMEC) system;

[0099] The hydrogen storage and use system includes a hydrogen storage device, an oxygen storage device and a proton exchange membrane fuel cell (PEMFC) system.

[0100] The hydrogen production system includes:

[0101] Photovoltaic panels 1 and wind power generation devices 2 use solar energy and wind energy to generate electricity respectively. The generated electricity is transmitted to the power bus and then to the power grid, which supplies the electricity to users. Photovoltaic panels need to continuously dissipate heat to improve their power generation efficiency during the power generation process. Photovoltaic panels transfer the waste heat of the battery to the cold water from the user side to turn it into hot water for users.

[0102] In the proton exchange membrane electrolyzer system, the proton exchange membrane electrolyzer 6 is connected to the heat exchanger 5, and the proton exchange membrane electrolyzer 6 is also connected to the first steam-water separator 31 and the second steam-water separator 32, and the first steam-water separator 31 and the second steam-water separator 32 are respectively connected to the hydrogen gas storage device 33 and the oxygen gas storage device 34. When there is excess power in the power grid, the proton exchange membrane electrolyzer 6 starts to operate. The water separated by the first steam-water separator 31 and the second steam-water separator 32 is mixed with external supplementary water (when the tubular seawater desalination system is not in operation) or fresh water preheated by the heat exchanger (when the tubular seawater desalination system is in operation), and is sent to the proton exchange membrane electrolyzer 6 as the electrolysis raw material of the proton exchange membrane electrolyzer 6 for electrolysis, and the remaining fresh water generated by the tubular seawater desalination system is supplied to users. The proton exchange membrane electrolyzer 6 uses the excess power of the power grid to electrolyze water, and produces hydrogen at the cathode of the electrolyzer, and the produced hydrogen is temporarily stored in the hydrogen gas storage device 33.

[0103] In the biomass gasification system, the outlet of the biomass high-temperature gasification furnace 8 is connected to the air preheater 7, the air preheater 7 is connected to the first evaporator 9, the first evaporator 9 is connected to the generator 17, the generator 17 is connected to the heat exchanger 5, the heat exchanger 5 is connected to the seawater tubular distiller 25, and the seawater tubular distiller 25 is connected to the separator 30. The gasifying agent air is first preheated by the air preheater and then passed into the biomass high-temperature gasification furnace 8. The biomass is gasified in the biomass high-temperature gasification furnace 8. The produced synthesis gas (temperature is about 700-1000°C) first passes through the air preheater 7 to recover its high-temperature heat (after heat recovery, the synthesis gas temperature is about 200-300°C) and then passes into the first evaporator 9 of the two-stage organic Rankine cycle to release the medium-temperature waste heat (the synthesis gas temperature after heat release is about 100-200°C), and then passes into the absorption refrigeration cycle to generate The low-temperature waste heat is further released in the generator 17 (the temperature of the synthesis gas after heat release is about 80-100°C), and then introduced into the heat exchanger 5 to preheat the electrolytic fresh water raw material of the proton exchange membrane electrolyzer 6 (when electrolysis is carried out using tubular seawater desalination water supply; the temperature of the synthesis gas after heat release is about 70-90°C), and finally introduced into the seawater tubular distiller 25 of the tubular seawater desalination system for further recovery of the low-temperature waste heat. After the synthesis gas is cooled, it is separated into pure hydrogen through the separator 30 and sent to the hydrogen storage device 33.

[0104] In the two-stage organic Rankine cycle system, the outlet of the first evaporator 9 is connected to the first turbine 10, the first turbine 10 is connected to the first condenser 11, the first condenser 11 is connected to the first organic working fluid pump 12, the first organic working fluid pump 12 is connected to the inlet of the first evaporator 9, the outlet of the first condenser 11 is connected to the second turbine 13, the second turbine 13 is connected to the heat exchanger 14, the heat exchanger 14 is connected to the second condenser 15, the second condenser 15 is connected to the second organic working fluid pump 16, and the second organic working fluid pump 16 is connected to the inlet of the first condenser 11. The two-stage organic Rankine cycle is divided into a high-temperature organic Rankine cycle and a low-temperature organic Rankine cycle. In the high-temperature organic Rankine cycle, the organic working fluid used is R123. R123 absorbs the waste heat from the biomass gasification synthesis gas in the first evaporator 9, and becomes a high-temperature and high-pressure organic working fluid, then enters the first turbine 10 to expand and work to drive the generator to generate electricity, and then enters the first condenser 11 to release heat at a constant pressure, and transfers the heat to the working fluid of the low-temperature organic Rankine cycle, and then returns to the first evaporator 9 after the pressure is increased by the first organic working fluid pump 12 to complete the cycle. In the low-temperature organic Rankine cycle, the organic working fluid used is R245fa. R245fa absorbs the condensation heat from the high-temperature organic Rankine cycle in the second evaporator 11 and heats up, then enters the second turbine 13 to expand and work to cool down and reduce the pressure, and drives the generator to generate electricity, and then enters the heat exchanger 14 to transfer the heat to the cold water from the user side, so that it becomes hot water for the user, and R245fa enters the second condenser 15 after heat exchange, absorbs the cold energy generated by the absorption refrigeration and further releases heat at a constant pressure, and then the low-temperature and low-pressure R245fa is pressurized by the second organic working fluid pump 16, and finally flows back to the second evaporator 11 to complete the cycle.

[0105] In the two-stage organic Rankine cycle, the first turbine 10 and the second turbine 13 expand and work to output electrical energy through the generator. The generated electrical energy is transmitted to the power bus, then transmitted to the power grid and finally supplied to users.

[0106] In the absorption refrigeration cycle system, the generator 17 is connected to the third condenser 18, the third condenser 18 is connected to the expansion valve 19, the expansion valve 19 is connected to the third evaporator 20, the third evaporator 20 is connected to the absorber 21, the absorber 21 is connected to the solution pump 22, the solution pump 22 is connected to the regenerator 23, the regenerator 23 is connected to the generator 17, the regenerator 23 is also connected to the pressure reducing valve 24, and the pressure reducing valve 24 is connected to the absorber 21. The absorption refrigeration cycle is divided into a refrigerant cycle and a solution cycle. In the refrigerant cycle, the high-temperature and high-pressure vapor of the refrigerant ammonia coming out of the generator 17 is condensed and releases heat in the third condenser 18 to form a high-pressure saturated liquid, and then throttled to the evaporation pressure by the expansion valve 19 to enter the third evaporator 20, and the constant pressure heat absorption vaporization in the third evaporator 20 becomes a low-pressure refrigerant ammonia vapor, and then enters the absorber 21 and is absorbed by the dilute ammonia water after the pressure reduction of the pressure reducing valve 24 to become concentrated ammonia water. In the solution cycle, the low-pressure refrigerant ammonia vapor introduced from the third evaporator 20 is absorbed by the dilute ammonia water after the pressure reduction valve 24 in the absorber 21 to become concentrated ammonia water. This process has an exothermic effect, and the heat is taken away by the cooling water. After that, the concentrated ammonia water is pressurized by the solution pump 22 and first passes through the regenerator 23 to absorb heat, and then is sent to the generator 17. In the generator 17, the concentrated ammonia water absorbs the heat from the biomass gasification synthesis gas to produce high-temperature and high-pressure ammonia vapor. The generated ammonia vapor enters the third condenser 18 for condensation. The remaining dilute ammonia water in the generator 17 first releases heat to the concentrated ammonia water through the regenerator 23, and then returns to the absorber 21 after reducing the pressure through the pressure reducing valve 24 to complete the solution cycle. The cooling water from the user side first passes into the absorber 21, and then passes into the third condenser 18 to take away the heat in the absorber 21 and the third condenser 18, and becomes hot water to supply users. The cold energy produced in the third evaporator 20 of the absorption refrigeration cycle is passed into the second condenser 15 in the two-stage organic Rankine cycle to reduce its condensation pressure and temperature, so that the two-stage organic Rankine cycle can generate more electricity to be transmitted to the power bus and the power grid, and the remaining cold energy is supplied to users.

[0107] In the tubular seawater desalination system, the outlet of the seawater tubular distiller 25 is connected to the concentrated seawater tank 26, the concentrated seawater tank 26 is connected to the throttle valve 27, the throttle valve 27 is connected to the seawater pump 28, the seawater pump 28 is connected to the inlet of the seawater tubular distiller 25, and the outlet of the seawater tubular distiller 25 is also connected to the freshwater pool 29. The feed seawater and the seawater recovered after the throttle valve is depressurized are pressurized by the seawater inlet pump and enter the seawater tubular distiller 25, and are heated by the biomass gasification synthesis gas, and the seawater is evaporated by heat. The unevaporated overflow seawater, i.e., the concentrated seawater, falls into the overflow tank in time, and then is discharged into the concentrated seawater tank 26. Part of the concentrated seawater is throttled and depressurized by the throttle valve 27, mixed with the feed seawater, and then enters the seawater pump 28 and enters the tubular seawater distiller 25 to complete the cycle. The water vapor generated by the evaporation of seawater condenses on the inner surface of the tube shell, and the condensed water flows downward to the bottom of the tube shell under the action of gravity, and finally discharged into the freshwater pool 29, realizing the entire seawater desalination process. The generated fresh water is temporarily stored in the fresh water tank 29 and is used as an electrolysis raw material when the proton exchange membrane electrolysis cell 6 is in operation. The excess fresh water is supplied to users.

[0108] The hydrogen storage and use system includes:

[0109] The inlet of the hydrogen storage device 33 is connected to the first steam-water separator 31 and the separator 30, the outlet of the hydrogen storage device 33 is connected to the proton exchange membrane fuel cell 37, and a fuel preheater 36 is added between the hydrogen storage device and the proton exchange membrane fuel cell. The outlet of the oxygen storage device 34 is connected to the proton exchange membrane fuel cell 37, and an oxygen preheater 35 is added between the oxygen storage device and the proton exchange membrane fuel cell.

[0110] When the power in the power grid cannot meet the power demand of the user side, the proton exchange membrane fuel cell 37 is started to produce electricity for supplement. The hydrogen from the hydrogen storage device 33 is first preheated by the fuel preheater 36, and the oxygen from the oxygen storage device 34 is first preheated by the oxygen preheater 35. Then the hydrogen and oxygen are simultaneously introduced into the proton exchange membrane fuel cell 37 to undergo an electrochemical reaction to generate electricity that is transmitted to the power bus. The cathode tail gas passes through the oxygen preheater 35 and the fuel preheater 36 in turn and then releases heat before being discharged.

[0111] Through the above description of the implementation methods, the technicians in the relevant field can clearly understand that the present invention can be implemented by means of software and necessary general hardware, and of course can also be implemented by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present invention is essentially or the part that contributes to the prior art can be embodied in the form of a software product, and the computer software product can be stored in a computer-readable storage medium, such as a computer floppy disk, read-only memory (ReadOnly, Memory, ROM), random access memory (RandomAccess Memory, RAM), flash memory (FLASH), hard disk or optical disk, etc., including a number of instructions for a computer device (which can be a personal computer, server, or network device, etc.) to perform the methods of various embodiments of the present invention.

[0112] Example 3

[0113] Based on Example 2, refer to Figure 2 , which is an embodiment of the present invention, provides a control method for an integrated energy system to verify the effect of the present invention.

[0114] Operation mode 1: the photovoltaic panel 1 and the wind power generation device 2 remain in continuous operation;

[0115] When there is a surplus of electricity in the power grid, the total amount of electricity generated by the photovoltaic panels 1 and the wind power generation device 2 is greater than the user's load demand, which causes a surplus of electricity in the power grid. At this time, the biomass gasification system, the two-stage organic Rankine cycle system, the absorption refrigeration system, the tubular seawater desalination system, and the proton exchange membrane fuel cell system stop working, and the proton exchange membrane electrolyzer system starts to start, providing this part of the surplus electricity to the proton exchange membrane electrolyzer 6 for electrolytic hydrogen production and energy storage. In the proton exchange membrane electrolyzer 6, the excess electricity is converted into hydrogen and temporarily stored in the hydrogen storage device 33, which plays the role of "peak shaving" of power in the power grid.

[0116] When the power grid is insufficient, the total amount of electricity generated by the photovoltaic panel 1 and the wind power generation device 2 is less than the user's load demand, which causes insufficient power supply in the power grid. At this time, the biomass gasification system, the two-stage organic Rankine cycle system, the absorption refrigeration system, the tubular seawater desalination system and the proton exchange membrane fuel cell system are started, and the proton exchange membrane electrolyzer system stops running.

[0117] The biomass gasification system produces syngas, which passes through the two-stage organic Rankine cycle, absorption refrigeration and tubular seawater desalination system in sequence, and finally separates the pure hydrogen through the separator 30 to supply the proton exchange membrane fuel cell 37 for power generation. The two-stage organic Rankine cycle absorbs the heat of the syngas to generate electricity and transmits it to the power grid for power supplement. The cold energy produced by the absorption refrigeration system is introduced into the two-stage organic Rankine cycle to generate more electricity and achieve higher system efficiency. The fresh water produced by the tubular seawater desalination system will be directly supplied to users. The proton exchange membrane fuel cell 37 uses the hydrogen and oxygen produced by the proton exchange membrane electrolyzer 6 and the hydrogen produced by the biomass gasification to produce electricity by electrochemical reaction, and the electricity is transmitted to the power grid.

[0118] The electricity generated by the two-stage organic Rankine cycle system and the proton exchange membrane fuel cell system serves as supplementary power when the power grid is insufficient, playing the role of "filling the valley" of power in the grid.

[0119] Operation mode 2: Photovoltaic panels, wind power generation devices, biomass gasification system, two-stage organic Rankine cycle system, absorption refrigeration system and tubular seawater desalination system remain in continuous operation;

[0120] When the power grid has excess electricity, the total amount of electricity generated by the photovoltaic panel 1, the wind power generation device 2 and the two-stage organic Rankine cycle system is greater than the user's load demand, which causes excess electricity in the power grid. At this time, the proton exchange membrane fuel cell system stops working, and the proton exchange membrane electrolyzer system starts to start, providing this part of the excess electricity to the proton exchange membrane electrolyzer 6 for electrolytic hydrogen production and energy storage. The excess electricity in the proton exchange membrane electrolyzer 6 is converted into hydrogen and temporarily stored in the hydrogen storage device 33, which plays the role of "peak shaving" of power in the power grid.

[0121] When the power grid is insufficient, the total amount of electricity generated by the photovoltaic panel 1, the wind power generation device 2 and the two-stage organic Rankine cycle system is less than the user's load demand, which causes insufficient power supply in the power grid. At this time, the proton exchange membrane fuel cell system is started and the proton exchange membrane electrolyzer system stops running. The proton exchange membrane fuel cell 37 uses the hydrogen and oxygen generated by the proton exchange membrane electrolyzer 6 and the hydrogen generated by biomass gasification to produce electricity through electrochemical reactions, and the electricity is transmitted to the power grid as supplementary power when the power grid is insufficient, playing the role of "filling the valley" of the power grid.

[0122] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. An integrated energy system, It is characterized in that include: Photovoltaic panels, wind power generation devices, biomass gasification systems, two-stage organic Rankine cycle systems, absorption refrigeration systems, tubular seawater desalination systems, proton exchange membrane electrolyzer systems, hydrogen gas storage devices and proton exchange membrane fuel cell systems; The electricity generated by the photovoltaic panels, the wind power generation device, the two-stage organic Rankine cycle system and the proton exchange membrane fuel cell system is transmitted to the power bus and delivered to the power grid, and the power grid supplies the electricity to users; The waste heat of the high-temperature tail gas generated by the biomass gasification system is sequentially absorbed by the first evaporator of the two-stage organic Rankine cycle system, the generator of the absorption refrigeration system, and the seawater tubular distiller of the tubular seawater desalination system; The hydrogen gas storage device is connected to the proton exchange membrane electrolyzer system and the proton exchange membrane fuel cell system respectively.

2. The integrated energy system according to claim 1, It is characterized in that The absorption refrigeration system includes: A preset portion of the cooling capacity generated by the third evaporator in the absorption refrigeration system is introduced into the second condenser of the two-stage organic Rankine cycle system to provide all the cooling capacity required by the second condenser of the two-stage organic Rankine cycle and to reduce the condensing pressure and condensing temperature of the two-stage organic Rankine cycle system to generate high power generation, and the remaining preset portion of cooling capacity is supplied to the user.

3. A control method for an integrated energy system, It is characterized in that The operation modes of the integrated energy system include: a first operation mode and a second operation mode; The first operation mode is: keep the photovoltaic panels and the wind power generation device in continuous operation, obtain the total amount of electricity generated by the integrated energy system, and make a first judgment on the total amount of electricity generated by the integrated energy system; The second operating mode is: keep the photovoltaic panels, wind power generation equipment, biomass gasification system, two-stage organic Rankine cycle system, absorption refrigeration system and tubular seawater desalination system in continuous operation, obtain the total amount of electricity generated by the integrated energy system, and make a second judgment on the total amount of electricity generated by the integrated energy system.

4. The control method of the integrated energy system according to claim 3, It is characterized in that The first judgment includes: When the total amount of electricity generated by the integrated energy system is greater than the user's electricity demand, the biomass gasification system, the two-stage organic Rankine cycle system, the absorption refrigeration system, the tubular seawater desalination system and the proton exchange membrane fuel cell system stop working, and the proton exchange membrane electrolyzer system is started; Obtain water sources outside the integrated energy system, transport the water to the proton exchange membrane electrolyzer system, provide excess electricity in the power grid to the proton exchange membrane electrolyzer system to electrolyze the water to produce hydrogen and store energy, and convert excess electricity in the power grid into hydrogen and store it in a hydrogen storage device.

5. The control method of the integrated energy system according to claim 4, It is characterized in that The first judgment also includes: When the total amount of electricity generated by the integrated energy system is less than the user's electricity demand, the proton exchange membrane electrolyzer system stops working and the biomass gasification system, two-stage organic Rankine cycle system, absorption refrigeration system, tubular seawater desalination system and proton exchange membrane fuel cell system are started; The supplementary electricity generated by the first turbine, the second turbine and the proton exchange membrane fuel cell system of the two-stage organic Rankine cycle system is transmitted to the power grid and supplied to users together with the electricity generated by the photovoltaic panels and wind power generation devices.

6. The control method of the integrated energy system according to claim 3, It is characterized in that The second judgment includes: When the total amount of electricity generated by the integrated energy system is greater than the user's electricity demand, the proton exchange membrane fuel cell system stops working and the proton exchange membrane electrolyzer system starts; The water supplied by tubular seawater desalination is used for electrolysis, and the excess electricity generated by the integrated energy system is provided to the proton exchange membrane electrolyzer system for electrolytic hydrogen production and energy storage. The excess electricity in the power grid is converted into hydrogen, and the tail gas generated by the biomass gasification system is removed by a separator and transmitted to the hydrogen storage device together with the hydrogen generated by the proton exchange membrane electrolyzer system.

7. The control method of the integrated energy system according to claim 6, It is characterized in that Electrolysis using tubular desalination feed water includes: Obtain seawater, introduce the seawater into the tubular seawater desalination system through a seawater pump, mix it with the seawater recovered after the throttle valve reduces the pressure, pressurize the mixed seawater through a seawater pump, and enter the seawater tubular distiller; The seawater in the seawater tube distiller is heated by the synthesis gas produced by biomass gasification, so that the seawater evaporates, and the evaporated water vapor condenses on the inner surface of the tube shell to obtain fresh water, which flows into the fresh water tank for storage; When the proton exchange membrane electrolyzer system is in operation, the fresh water in the fresh water pool is preheated by a heat exchanger, and the preheated fresh water is transmitted to the proton exchange membrane electrolyzer system.

8. The control method of the integrated energy system according to claim 6 or 7, It is characterized in that The second judgment also includes: When the total amount of electricity generated by the integrated energy system is less than the user's electricity demand, the proton exchange membrane electrolyzer system stops working and the proton exchange membrane fuel cell system is started to transmit the supplementary electricity generated by the proton exchange membrane fuel cell system and the electricity generated by the first turbine and second turbine of the two-stage organic Rankine cycle system, photovoltaic panels, and wind power generation equipment to the power grid and supply users.

9. An electronic device, It is characterized in that The device comprises: processor; a memory for storing processor-executable instructions; The processor is configured to call the instructions stored in the memory to execute the method according to any one of claims 1 to 8.

10. A computer-readable storage medium having computer program instructions stored thereon, It is characterized in that When the computer program instructions are executed by a processor, the method according to any one of claims 1 to 8 is implemented.

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