An integrated energy power supply unit

Abstract

This application relates to the field of wind and solar power generation technology, and provides an integrated energy supply unit. The integrated energy supply unit includes a coordination unit, a wind-solar-storage power generation unit, a thermal energy unit, and a generator set. The wind-solar-storage power generation unit is used for electrical connection to the power grid, converting at least one of wind energy and solar energy into electrical energy and transmitting it to the grid. The generator set is also used for electrical connection to the power grid, converting the thermal energy from the thermal energy unit into electrical energy and transmitting it to the grid. The coordination unit is used to call upon at least one of the wind-solar-storage power generation unit and the thermal energy unit to generate electricity. Electricity can be supplied to the grid through at least one of wind power, photovoltaic power generation, and thermal energy generation to meet grid demand. When the power supply capacity of the wind-solar-storage power generation unit is insufficient to meet grid load demand, the generator set can convert the thermal energy from the thermal energy unit into electrical energy to supplement power generation and respond to grid demand.

Description

Technical Field

[0001] This application relates to the field of wind and solar power generation technology, and in particular to an integrated energy power supply unit. Background Technology

[0002] Both wind power and photovoltaic power, which are currently widely used and promoted, have their drawbacks. Both wind power and photovoltaic power generation are affected by environmental factors such as weather, time, and season, making it difficult to provide energy continuously and in sufficient quantities, and difficult to guarantee an uninterrupted power supply for a city or industrial park. Utility Model Content

[0003] In view of this, the embodiments of this application aim to provide an integrated energy power supply unit that can convert the thermal energy of the thermal energy unit into electrical energy to supplement power generation when the power supply capacity of the wind, solar and energy storage power generation unit is insufficient and it is difficult to meet the grid load demand.

[0004] To achieve the above objectives, the technical solution of this application embodiment is implemented as follows:

[0005] This application provides an integrated energy power supply unit, including:

[0006] A wind-solar-storage power generation unit is used to connect to the power grid. The wind-solar-storage power generation unit converts at least one of wind energy and solar energy into electrical energy and transmits it to the power grid.

[0007] Thermal energy unit;

[0008] A generator set is used to be electrically connected to the power grid, wherein the generator set converts the thermal energy of the thermal energy unit into electrical energy and transmits it to the power grid;

[0009] A coordination unit is used to call upon at least one of the wind, solar, and energy storage power generation units and the thermal energy unit to generate electricity.

[0010] The integrated energy supply unit provided in this application embodiment can supply power to the grid through wind, solar, and energy storage power generation units, and through a thermal energy unit that drives a generator set to generate electricity and supply power to the grid. A coordination unit can mobilize at least one of the wind, solar, and energy storage power generation units and the thermal energy unit to generate electricity. In other words, it can supply power to the grid through at least one of wind power, photovoltaic power generation, and thermal energy generation to meet grid demand. When the power supply capacity of the wind, solar, and energy storage power generation units is insufficient to meet grid load demands, the generator set can convert the thermal energy from the thermal energy unit into electrical energy to supplement power generation and respond to grid demand.

[0011] In some embodiments, when the energy storage capacity of the wind-solar-storage power generation unit is not lower than a first threshold, the coordination unit calls the wind-solar-storage power generation unit to generate electricity; when the energy storage capacity of the wind-solar-storage power generation unit is lower than the first threshold, the coordination unit calls the thermal energy unit to generate electricity.

[0012] In this embodiment, when the energy storage capacity of the wind-solar-storage power generation unit is not lower than the first threshold, the stored energy is sufficient to provide a stable power supply. In this case, the coordination unit calls upon the wind-solar-storage power generation unit to generate electricity to supplement its energy storage. When the energy storage capacity of the wind-solar-storage power generation unit is lower than the first threshold, the stored energy is insufficient, making a stable power supply difficult. In this situation, the coordination unit calls upon the thermal energy unit to generate electricity to provide a more stable power supply and meet the grid's needs.

[0013] In some embodiments, the integrated energy power supply unit includes a first heat exchange unit and an application unit. Both the application unit and the thermal energy unit are connected to the first heat exchange unit, which is used to realize heat exchange between the application unit and the thermal energy unit.

[0014] In this embodiment, the thermal energy unit acts as the supply side. The temperature of the thermal energy unit may be higher or lower than normal. A first heat exchange unit facilitates heat exchange between the application unit and the thermal energy unit. The application unit is responsible for heat distribution and can directly serve end users. For example, it can raise or lower the temperature of the application unit to provide cooling and / or heating functions, meeting the heating and / or cooling needs of end users. In this way, the integrated energy power supply unit can provide both electricity and heat, realizing multiple energy supply options.

[0015] In some embodiments, the application unit includes a demand module and a temperature control loop. The temperature control loop is connected to the first heat exchange unit and is used to circulate the heat exchange medium. The first heat exchange unit realizes heat exchange between the heat exchange medium and the thermal energy unit. The demand module is disposed in the temperature control loop and is used to provide at least one function of heating and cooling.

[0016] In this embodiment, the first heat exchange unit realizes heat exchange between the heat exchange medium in the temperature regulation circuit and the heat energy unit. After absorbing or releasing heat, the heat exchange medium enters the demand module through the temperature regulation circuit. The heat exchange medium in the demand module can absorb or release heat to the user end, such as the indoor environment or heating equipment at the user end, thereby regulating the temperature at the user end.

[0017] In some embodiments, the thermal energy unit includes:

[0018] The first geothermal well;

[0019] The second geothermal well has a lower temperature than the first geothermal well.

[0020] A geothermal energy main circuit connects the first geothermal energy well and the second geothermal energy well. The geothermal energy main circuit is connected to the generator set, which converts geothermal energy into electrical energy. The geothermal energy main circuit has a first node and a second node, which are located between the first heat exchange unit and the second geothermal energy well.

[0021] A geothermal energy branch connects the first node and the second node, and the geothermal energy branch is connected to the demand module.

[0022] In this embodiment, the thermal energy unit utilizes geothermal energy, a natural form of thermal energy. This means it leverages natural geothermal resources to provide heat. Geothermal energy is renewable and, compared to wind and solar energy, is largely unaffected by weather or seasons, allowing for a more continuous and stable supply. When the power supply from the wind, solar, and energy storage units is insufficient, the generator set can convert geothermal energy into electricity to supplement power generation. Geothermal resources can also be channeled through geothermal branches to the demand module to provide heating for users. This design allows geothermal resources to be used for both power generation and heating, improving resource utilization efficiency.

[0023] In some embodiments, the temperature control loop has a third node and a fourth node, the third node and the fourth node being located at both ends of the first heat exchange unit, and the application unit includes:

[0024] A cooling branch line connects the third node and the fourth node;

[0025] The heating module is located in the cooling branch;

[0026] The third switch module is disposed between the third node and the heating module;

[0027] The fourth switch module is located between the third node and the demand module.

[0028] In this embodiment, the flow path of the heat exchange medium can be controlled by opening and closing the third and fourth switch modules. When the heat exchange medium flows through the demand module, it can absorb or release heat to the demand module; alternatively, closing the fourth switch module can prevent the heat exchange medium from flowing through the demand module. When the heat exchange medium flows through the heating module, it can absorb heat from the heating module; alternatively, closing the third switch module can prevent the heat exchange medium from flowing through the heating module.

[0029] In some embodiments, the thermal energy unit includes:

[0030] The main heat storage circuit is used to circulate the heat storage working fluid;

[0031] A heat storage module is provided, and both the heat storage module and the generator set are installed in the heat storage main circuit. The heat storage module is used to store the heat storage medium, and the generator set converts the thermal energy of the heat storage medium into electrical energy.

[0032] A heat storage branch, the two ends of which are connected to the main heat storage circuit located at both ends of the heat storage module;

[0033] An electric heating module is installed in the heat storage branch, and the electric heating module is used to heat the heat storage medium.

[0034] In this embodiment, a thermal storage module is used to temporarily store thermal energy. When additional power generation is needed, the generator set converts the thermal energy of the thermal storage medium into electrical energy. When additional power generation is not needed, an electric heating module can be used to continuously or intermittently heat the thermal storage medium in the thermal storage branch, so that the temperature of the thermal storage medium in the thermal storage module is basically maintained at the set temperature, thus keeping the temperature of the thermal storage medium stable.

[0035] In some embodiments, when the energy storage capacity of the wind-solar-storage power generation unit is not lower than a first threshold, the coordination unit calls the electric heating module to heat the thermal storage medium; when the energy storage capacity of the wind-solar-storage power generation unit is lower than the first threshold, the electric heating module stops working.

[0036] In this embodiment, when the energy storage capacity of the wind-solar-storage power generation unit is not lower than the first threshold, the stored energy is sufficient to provide a stable power supply, and the electric heating module can draw power from the grid to heat the thermal storage medium. When the energy storage capacity of the wind-solar-storage power generation unit is lower than the first threshold, the stored energy is insufficient and it is difficult to provide a stable power supply. In this case, the electric heating module stops working and does not draw power from the grid, and the temperature of the thermal storage medium may drop. Power can then be drawn from the grid again when the energy storage capacity of the wind-solar-storage power generation unit reaches the first threshold, thereby increasing the temperature of the thermal storage medium.

[0037] In some embodiments, when the energy storage capacity of the wind-solar-storage power generation unit reaches a second threshold, the coordination unit calls the electric heating module to heat the thermal storage medium, where the second threshold is greater than the first threshold.

[0038] In this embodiment, the second threshold is greater than the first threshold. When the energy storage capacity of the wind-solar-storage power generation unit reaches the second threshold, it indicates that the energy storage capacity of the wind-solar-storage power generation unit is too high and may be close to the upper limit of the energy storage capacity of the wind-solar-storage power generation unit. In this case, the coordination unit calls the electric heating module to heat the heat storage medium and converts the excess electricity into the heat energy of the heat storage medium for storage. This can balance the energy storage demand of the wind-solar-storage power generation unit and reduce the waste of the excess capacity.

[0039] In some embodiments, the heat storage module includes an underground heating network.

[0040] In this embodiment, the underground heating network can be an existing urban heating network. The underground heating network can be used as part of the thermal energy unit to achieve supplementary power generation. When the integrated energy power supply unit has an application unit, the underground heating network can be used to meet the heating needs of users such as urban residents. In this way, by using the existing urban heating network to achieve supplementary power generation and heating, the initial investment of the integrated energy power supply unit can be reduced.

[0041] In some embodiments, the heat storage branch has a fifth node and a sixth node located at both ends of the electric heating module, and the integrated energy power supply unit includes:

[0042] A heat storage branch circuit, the two ends of which are connected to the fifth node and the sixth node;

[0043] The second heat exchange unit is located in the heat storage branch;

[0044] The waste heat unit is connected to the second heat exchange unit, which is used to realize heat exchange between the waste heat unit and the heat storage medium in the heat storage branch; the coordination unit can call the waste heat unit to heat the heat storage medium.

[0045] In this embodiment, urban waste heat generated by the waste heat unit is used to heat the heat storage medium, realizing the energy reuse of waste heat. The energy consumption for heating the heat storage medium is reduced by the second heat exchange unit, improving system efficiency. The coordination unit can call the waste heat unit to heat the heat storage medium, so as to facilitate the use of at least one of the waste heat unit and the heat storage module to heat the heat storage medium.

[0046] In some embodiments, the thermal energy unit includes:

[0047] The first geothermal well;

[0048] The second geothermal well has a lower temperature than the first geothermal well.

[0049] The geothermal energy main circuit connects the first geothermal well and the second geothermal well. The geothermal energy main circuit is connected to the generator set, which converts geothermal energy into electrical energy.

[0050] In this embodiment, the thermal energy unit uses geothermal energy, a natural thermal energy source. In other words, it utilizes natural geothermal resources to provide thermal energy. Geothermal energy is renewable and, compared to wind and solar energy, is largely unaffected by weather or seasons, allowing for a more continuous and stable supply. When the power supply from the wind, solar, and energy storage units is insufficient, the generator set can convert geothermal energy into electrical energy to supplement power generation. Attached Figure Description

[0051] Figure 1 This is a schematic diagram of the structure of the first integrated energy power supply unit in some embodiments of this application;

[0052] Figure 2 This is a schematic diagram of the structure of the second type of integrated energy power supply unit in some embodiments of this application;

[0053] Figure 3 This is a schematic diagram of the structure of the third integrated energy power supply unit in some embodiments of this application;

[0054] Figure 4 This is a schematic diagram of the structure of the fourth integrated energy power supply unit in some embodiments of this application;

[0055] Figure 5 This is a structural schematic diagram of the fifth integrated energy power supply unit in some embodiments of this application;

[0056] Figure 6 This is a schematic diagram of the structure of the sixth integrated energy power supply unit in some embodiments of this application;

[0057] Figure 7 This is a schematic diagram of the structure of the seventh integrated energy power supply unit in some embodiments of this application;

[0058] Figure 8 This is a structural schematic diagram of the eighth integrated energy power supply unit in some embodiments of this application.

[0059] Explanation of reference numerals in the attached figures

[0060] 1. Power grid; 2. Wind, solar, and energy storage power generation unit; 3. Thermal energy unit; 31. First geothermal well; 32. Second geothermal well; 33. Geothermal main circuit; 331. First node; 332. Second node; 34. Geothermal branch circuit; 35. First switch module; 36. Second switch module; 301. Thermal storage main circuit; 302. Thermal storage module; 303. Thermal storage branch circuit; 3031. Fifth node; 3032. Sixth node; 304. Electric heating module; 305. First thermal storage drive module; 306. Second thermal storage drive module; 307. Fifth Switch Module; 4. Generator Set; 5. First Heat Exchange Unit; 6. Application Unit; 61. Demand Module; 62. Temperature Control Main Circuit; 621. Third Node; 622. Fourth Node; 63. Heat Exchange Drive Module; 64. Cooling Branch Circuit; 65. Heating Module; 66. Third Switch Module; 67. Fourth Switch Module; 7. Heat Storage Branch Circuit; 8. Second Heat Exchange Unit; 9. Waste Heat Unit; 91. Waste Heat Module; 92. Waste Heat Main Circuit; 10. Sixth Switch Module; 20. Seventh Switch Module; 30. Coordination Unit. Detailed Implementation

[0061] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0062] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit this application.

[0063] In the description of the embodiments of this application, the technical terms "first", "second", etc. are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features.

[0064] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0065] It should be noted that in this application, "multiple" includes two or more.

[0066] In related technologies, with the introduction of carbon emission targets for 2030 and 2060, zero-carbon cities and zero-carbon industrial parks are gradually moving from concept to reality. However, wind power and photovoltaic power generation are affected by environmental factors such as weather, time, and season, making it difficult to provide energy continuously and in sufficient quantities, and difficult to guarantee an uninterrupted power supply for a city or industrial park. To achieve zero carbon, it is necessary to find additional technical solutions to provide energy supplementation when wind and solar energy cannot meet the power supply demand.

[0067] In view of this, this application provides an integrated energy power supply unit, which includes a coordination unit 30, a wind-solar-storage power generation unit, a thermal energy unit, and a generator set. The wind-solar-storage power generation unit is used for electrical connection to the power grid, converting at least one of wind energy and solar energy into electrical energy and transmitting it to the power grid. The generator set is used for electrical connection to the power grid, converting the thermal energy from the thermal energy unit into electrical energy and transmitting it to the power grid. The coordination unit 30 is used to call upon at least one of the wind-solar-storage power generation unit and the thermal energy unit to generate electricity.

[0068] The integrated energy supply unit provided in this application embodiment can supply power to the grid through wind, solar, and energy storage power generation units, and through a thermal energy unit that drives a generator set to generate electricity and supply power to the grid. The coordination unit 30 can call upon at least one of the wind, solar, and energy storage power generation units and the thermal energy unit to generate electricity. In other words, it can supply power to the grid through at least one of wind power, photovoltaic power generation, and thermal energy generation to meet grid demand. When the power supply capacity of the wind, solar, and energy storage power generation units is insufficient to meet grid load demands, the generator set can convert the thermal energy from the thermal energy unit into electrical energy to supplement power generation and respond to grid demand.

[0069] The integrated energy power supply unit provided in the embodiments of this application is further described below with reference to the accompanying drawings. Please refer to the accompanying drawings. Figures 1 to 8 This application provides an integrated energy power supply unit, which includes a coordination unit 30, a wind, solar and energy storage power generation unit 2, a thermal energy unit 3 and a generator set 4.

[0070] The wind-solar-storage power generation unit 2 is used for electrical connection with the power grid 1. The wind-solar-storage power generation unit 2 converts at least one of wind energy and solar energy into electrical energy and transmits it to the power grid 1. The generator set 4 is used for electrical connection with the power grid 1. The generator set 4 converts the thermal energy of the thermal energy unit 3 into electrical energy and transmits it to the power grid 1.

[0071] The coordination unit 30 is used to call upon at least one of the wind-solar-storage power generation unit 2 and the thermal energy unit 3 to generate electricity. For example, the coordination unit 30 may call upon only the wind-solar-storage power generation unit 2 to generate electricity, or the coordination unit 30 may call upon only the thermal energy unit 3 to generate electricity, or the coordination unit 30 may call upon both the wind-solar-storage power generation unit 2 and the thermal energy unit 3 to generate electricity.

[0072] Power Grid 1 is a power network system composed of substations and transmission and distribution lines of various voltages, including transmission, transformation and distribution links. Its core function is to transmit and distribute electrical energy and change voltage.

[0073] Power grid 1 may include a transmission system, a substation system, and a distribution system. The transmission system transmits electricity over long distances via high-voltage lines (e.g., 500kV) to reduce transmission losses. The substation system includes substations and transformers, responsible for voltage adjustments to meet the needs of different stages. The distribution system distributes electrical energy to end users on demand, including residential, industrial, and commercial users. Power grid 1 may employ structures known in the art, which will not be elaborated upon in this application.

[0074] The wind-solar-storage power generation unit 2 converts at least one of wind energy and solar energy into electrical energy, meaning that the wind-solar-storage power generation unit 2 can convert one of wind energy and solar energy into electrical energy, or the wind-solar-storage power generation unit 2 can convert both wind energy and solar energy into electrical energy.

[0075] As an example, the wind-solar-storage power generation unit 2 may include a wind power generation module and / or a photovoltaic power generation module. The wind power generation module converts wind energy into mechanical energy, and then converts the mechanical energy into electrical energy. The photovoltaic power generation module utilizes the photovoltaic effect at the semiconductor interface to directly convert light energy into electrical energy.

[0076] In some embodiments, the wind power generation module may include a windmill and a generator. Wind power drives the blades of the windmill to rotate, and a speed increaser further increases the rotational speed, thereby causing the generator to generate electricity. The wind power generation module can use equipment known in the art to achieve the wind power generation function, which will not be described in detail in this application.

[0077] In some embodiments, the photovoltaic power generation module may include solar cells, a power controller, and an inverter, etc. The solar cells may include multiple sets of cells connected in series and / or parallel for capturing light energy and converting it into direct current (DC). The power controller is used to regulate current and voltage, prevent overcharging or over-discharging, and protect the stable operation of the photovoltaic power generation module. The inverter converts the DC power into alternating current (AC) to adapt to the power grid. The photovoltaic power generation module can use devices known in the art to implement the photovoltaic power generation function, which will not be elaborated further in this application.

[0078] The thermal energy unit 3 is a unit that provides thermal energy. The thermal energy unit 3 may have a carrier that loads the thermal energy. For example, the carrier may be in the form of liquid or gas, etc.

[0079] The carrier is a flowable fluid, and the type of carrier is not limited. For example, the carrier can be a liquid water or an aqueous solution of ethylene glycol, etc. For instance, it can include steam in a gaseous state and / or hot water in a liquid state.

[0080] The generator set 4 converts the thermal energy of the thermal energy unit 3 into electrical energy. Specifically, the carrier of the thermal energy unit 3 drives the rotor of the generator set 4 to rotate, generating electrical energy based on the principle of electromagnetic induction.

[0081] The conversion of thermal energy into mechanical energy includes, but is not limited to, carrier expansion or other mechanical transmission methods driving the rotor of generator set 4 to rotate. Generator set 4 can use equipment known in the art to realize the thermal power generation function, which will not be described in detail in this application.

[0082] The integrated energy supply unit provided in this application embodiment includes a wind-solar-storage power generation unit 2 that can supply power to the grid 1, a thermal energy unit 3 that can drive a generator set 4 to generate electricity and supply power to the grid 1, and a coordination unit 30 that can call upon at least one of the wind-solar-storage power generation unit 2 and the thermal energy unit 3 to generate electricity. In other words, it can provide power to the grid 1 through at least one of wind power, photovoltaic power, and thermal energy generation to meet the grid 1's needs. When the power supply capacity of the wind-solar-storage power generation unit 2 is insufficient to meet the load demand of the grid 1, the generator set 4 can convert the thermal energy of the thermal energy unit 3 into electrical energy to supplement power generation and respond to the grid 1's needs.

[0083] In some embodiments, when the energy storage capacity of the wind-solar-storage power generation unit 2 is not lower than the first threshold, the coordination unit 30 calls the wind-solar-storage power generation unit 2 to generate electricity; when the energy storage capacity of the wind-solar-storage power generation unit 2 is lower than the first threshold, the coordination unit 30 calls the thermal energy unit 3 to generate electricity.

[0084] The wind-solar-storage power generation unit 2 has power generation and energy storage functions. The wind-solar-storage power generation unit 2 can have an energy storage module. The energy storage module can be released when power generation is insufficient or when electricity consumption is at its peak, acting as a "power bank" to achieve peak shaving and valley filling, so as to respond to the needs of the power grid 1 and improve utilization efficiency and power supply stability.

[0085] The energy storage capacity of wind-solar-storage power generation unit 2 refers to the total amount of electricity stored in wind-solar-storage power generation unit 2.

[0086] It should be noted that the size of the first threshold is not limited and can be set according to the energy storage capacity of the wind-solar-storage power generation unit 2 and / or the power consumption of the load end.

[0087] In this embodiment, when the energy storage capacity of the wind-solar-storage power generation unit 2 is not lower than the first threshold, the stored energy in the wind-solar-storage power generation unit 2 is sufficient to provide a stable power supply. In this case, the coordination unit 30 calls upon the wind-solar-storage power generation unit 2 to generate electricity to supplement its stored energy. When the energy storage capacity of the wind-solar-storage power generation unit 2 is lower than the first threshold, the stored energy is insufficient and a stable power supply is difficult to achieve. In this situation, the coordination unit 30 calls upon the thermal energy unit 3 to generate electricity to provide a more stable power supply and meet the needs of the power grid 1.

[0088] In some embodiments, please refer to Figure 2 , Figure 3 , Figure 5 , Figure 6 and Figure 8 The integrated energy power supply unit includes a first heat exchange unit 5 and an application unit 6. Both the application unit 6 and the thermal energy unit 3 are connected to the first heat exchange unit 5. The first heat exchange unit 5 is used to realize heat exchange between the application unit 6 and the thermal energy unit 3.

[0089] Application unit 6 is responsible for heat distribution to adapt to end users. In other words, application unit 6 can be directly connected to the end user's building and / or equipment, and the temperature of application unit 6 can directly meet the end user's temperature requirements.

[0090] It should be noted that end users include, but are not limited to, industrial users, commercial users, or residential users.

[0091] Taking residential users as an example, application unit 6 can include the residential heating network.

[0092] The first heat exchange unit 5 is used to realize heat transfer between the application unit 6 and the thermal energy unit 3. That is, the application unit 6 can release heat to the thermal energy unit 3 through the first heat exchange unit 5, and / or the application unit 6 can absorb heat from the thermal energy unit 3 through the first heat exchange unit 5.

[0093] In this embodiment, the thermal energy unit 3 serves as the supply side. The temperature of the thermal energy unit 3 may be higher or lower than normal. The first heat exchange unit 5 facilitates heat exchange between the application unit 6 and the thermal energy unit 3. The application unit 6 is responsible for heat distribution and can directly serve end users. For example, it can raise or lower the temperature of the application unit 6 to provide cooling and / or heating functions, meeting the heating and / or cooling needs of end users. In this way, the integrated energy power supply unit can provide both electricity and heat, realizing a combination of energy sources.

[0094] In some embodiments, please refer to Figure 2 , Figure 3 , Figure 5 , Figure 6 and Figure 8 Application unit 6 includes demand module 61 and temperature control circuit 62. Temperature control circuit 62 is connected to the first heat exchange unit 5. Temperature control circuit 62 is used to circulate heat exchange medium. The first heat exchange unit 5 realizes heat exchange between heat exchange medium and heat energy unit 3. Demand module 61 is set in temperature control circuit 62. Demand module 61 is used to provide at least one function of heating and cooling.

[0095] Demand module 61 may include multiple parallel pipelines to distribute the heat exchange medium to end users.

[0096] An end user can include multiple user terminals. Multiple user terminals can refer to a large number of users, such as multiple users in a city, a district, or a building.

[0097] The temperature control main loop 62 is the path for the flow of heat exchange medium, and the temperature control main loop 62 can be constructed through pipes.

[0098] The demand module 61 is used to provide at least one function of heating and cooling, which means that the demand module 61 can provide one function of heating and cooling, or the demand module 61 can provide both functions of heating and cooling.

[0099] The heat exchange medium is a flowable fluid used to absorb or release heat. The heat exchange medium can be in liquid or gaseous state. For example, the heat exchange medium can be water, ethylene glycol aqueous solution, or refrigerant, etc. For instance, the heat exchange medium can be hot water or cold water, etc.

[0100] The heat exchange medium can be the same as or different from the carrier of thermal energy unit 3. For ease of description, this embodiment uses an example where both the heat exchange medium and the carrier are liquid water.

[0101] As an example, the heat exchange medium in requirement module 61 can absorb or release heat to the indoor environment at the user end, thereby regulating the temperature of the indoor environment and providing heating or cooling for humans.

[0102] As an example, the heat exchange medium in requirement module 61 can absorb the heat from the user's heat-generating equipment, thereby reducing the temperature of the heat-generating equipment and providing cooling and heat dissipation functions.

[0103] The type of heat-generating equipment is not limited; for example, heat-generating equipment includes, but is not limited to, battery devices and / or computer rooms, etc.

[0104] In this embodiment, the first heat exchange unit 5 realizes heat exchange between the heat exchange medium in the temperature regulation circuit 62 and the heat energy unit 3. After absorbing or releasing heat, the heat exchange medium enters the demand module 61 through the temperature regulation circuit 62. The heat exchange medium in the demand module 61 can absorb or release heat to the user end, such as the indoor environment or heating equipment at the user end, thereby regulating the temperature at the user end.

[0105] In some embodiments, please refer to Figure 2 , Figure 3 , Figure 5 , Figure 6 and Figure 8 Application unit 6 includes a heat exchange drive module 63, which is located in the temperature control circuit 62 to drive the flow of heat exchange working fluid.

[0106] In this embodiment, the heat exchange drive module 63 is used to provide the driving force for the flow of the heat exchange medium, so that the heat exchange medium can circulate between the temperature control circuit 62 and the demand module 61.

[0107] The type of heat exchange drive module 63 is not limited, and the heat exchange drive module 63 includes, but is not limited to, electric-driven liquid pumps or electric-driven air pumps, etc.

[0108] In some embodiments, please refer to Figure 8 The thermal energy unit 3 includes a first geothermal well 31, a second geothermal well 32, a geothermal main circuit 33, and a geothermal branch circuit 34.

[0109] The temperature of the second geothermal well 32 is lower than that of the first geothermal well 31. A geothermal main circuit 33 connects the first geothermal well 31 and the second geothermal well 32. The geothermal main circuit 33 is also connected to a generator set 4, which converts geothermal energy into electrical energy. The geothermal main circuit 33 has a first node 331 and a second node 332, located between the first heat exchange unit 5 and the second geothermal well 32. A geothermal branch circuit 34 connects the first node 331 and the second node 332, and is also connected to the demand module 61.

[0110] The first geothermal well 31 refers to a geothermal resource discharge well at a predetermined depth underground.

[0111] The second geothermal well 32 refers to a geothermal resource recovery well at a predetermined depth underground, which is a low-temperature heat source. It can be understood that the first geothermal well 31 discharges a high-temperature heat source, while the second geothermal well 32 recovers a low-temperature heat source. However, a high-temperature heat source still exists within the second geothermal well 32, and the first geothermal well 31 and the second geothermal well 32 form a circulation underground.

[0112] The geothermal energy main loop 33 is the flow path of geothermal resources. Geothermal resources can circulate between the first geothermal well 31 and the second geothermal well 32 through the geothermal energy main loop 33. The geothermal energy main loop 33 can be composed of pipelines.

[0113] Geothermal resources include, but are not limited to, underground steam, underground hot water (e.g., 40℃~90℃), etc.

[0114] There is no limit to the depth that can be set, and the set depth can vary in different regions. For example, the set depth can be from 3000m to 5000m.

[0115] Geothermal energy branch 34 connects the first node 331 and the second node 332. Geothermal energy branch 34 is connected to the demand module 61. With this design, geothermal resources can enter the geothermal energy branch 34 and flow through the demand module 61. That is, geothermal resources can be distributed to multiple user terminals through the geothermal energy branch 34. In this way, geothermal resources can be used to directly provide heating to user terminals.

[0116] In this embodiment, the thermal energy unit 3 uses geothermal energy, a natural form of thermal energy. This means it utilizes natural geothermal resources to provide heat. Geothermal energy is renewable and, compared to wind and solar energy, is largely unaffected by weather or seasons, allowing for a more continuous and stable supply. When the power supply from the wind-solar-storage power generation unit 2 is insufficient, the generator set 4 can convert geothermal energy into electricity to supplement power generation. Geothermal resources can also enter the demand module 61 through geothermal branches to provide heating for users. This design allows geothermal resources to be used for both power generation and heating, improving resource utilization efficiency.

[0117] In some embodiments, please refer to Figure 8 The thermal energy unit 3 includes a first switch module 35 and a second switch module 36.

[0118] The first switch module 35 is disposed in the geothermal energy main circuit 33 and is located between the first node 331 and the second node 332.

[0119] The second switch module 36 is located in the geothermal energy branch 34, between the first node 331 and the demand module 61.

[0120] The first switch module 35 can be turned on or off, thereby connecting or disconnecting the path between the first node 331 and the second node 332.

[0121] The second switch module 36 can be turned on or off, thereby connecting or disconnecting the path between the first node 331 and the demand module 61.

[0122] In this embodiment, the flow path of geothermal resources can be controlled by opening and closing the first switch module 35 and the second switch module 36. When geothermal resources flow through the demand module 61, they can release heat to the demand module 61, providing a heating function. By closing the second switch module 36, geothermal resources can be prevented from flowing through the demand module 61.

[0123] In some embodiments, please refer to Figure 8 The temperature control circuit 62 has a third node 621 and a fourth node 622, which are located at both ends of the first heat exchange unit 5.

[0124] Application unit 6 includes a cooling branch 64, a heating module 65, a third switch module 66, and a fourth switch module 67. The cooling branch 64 connects the third node 621 and the fourth node 622. The heating module 65 is located in the cooling branch 64, and the third switch module 66 is located between the third node 621 and the heating module 65. The fourth switch module 67 is located between the third node 621 and the demand module 61. Specifically, the third switch module 66 is located in the cooling branch 64, and the fourth switch module 67 is located in the temperature control main circuit 62.

[0125] Cooling branch 64 is the flow path of the heat exchange medium, and cooling branch 64 can be composed of pipes.

[0126] The heating module 65 is a module that generates heat during operation, causing the temperature to rise.

[0127] The heating module 65 is located in the cooling branch 64, which means that the heat exchange medium in the cooling branch 64 will flow through the heating module 65.

[0128] The type of heat dissipation module 65 is not limited. For example, heat dissipation module 65 includes, but is not limited to, battery devices and / or computer rooms, etc.

[0129] The third switch module 66 can be opened or closed, thereby connecting or disconnecting the path between the third node 621 and the heating module 65.

[0130] The fourth switch module 67 can be opened or closed, thereby connecting or disconnecting the path between the third node 621 and the demand module 61.

[0131] In this embodiment, the flow path of the heat exchange medium can be controlled by opening and closing the third switch module 66 and the fourth switch module 67. When the heat exchange medium flows through the demand module 61, it can absorb or release heat to the demand module 61; alternatively, closing the fourth switch module 67 can prevent the heat exchange medium from flowing through the demand module 61. When the heat exchange medium flows through the heating module 65, it can absorb heat from the heating module 65; alternatively, closing the third switch module 66 can prevent the heat exchange medium from flowing through the heating module 65.

[0132] In some embodiments, please refer to Figures 1 to 6 The thermal energy unit 3 includes a thermal storage main circuit 301, a thermal storage module 302, a thermal storage branch circuit 303, and an electric heating module 304.

[0133] The main thermal storage circuit 301 is used to circulate the thermal storage medium. Both the thermal storage module 302 and the generator set 4 are located within the main thermal storage circuit 301. The thermal storage module 302 stores the thermal storage medium, and the generator set 4 converts the thermal energy of the thermal storage medium into electrical energy. The two ends of the thermal storage branch circuit 303 are connected to the main thermal storage circuit 301 at the two ends of the thermal storage module 302. The electric heating module 304 is located in the thermal storage branch circuit 303 and is used to heat the thermal storage medium.

[0134] The thermal storage main circuit 301 is the path for the flow of thermal storage working fluid, and the thermal storage main circuit 301 can be constructed through pipelines.

[0135] The heat storage medium is a flowable fluid, which can be in liquid or gaseous state. For example, the heat storage medium can be water, ethylene glycol aqueous solution, or refrigerant, etc.

[0136] The heat storage medium can be the same as or different from the heat exchange medium. For ease of description, this application uses liquid water as an example of a heat storage medium.

[0137] The heat storage module 302 is used to store the heat storage medium. In this way, the heat storage medium at the set temperature can be temporarily stored to play the role of heat storage and energy storage.

[0138] The set temperature of the heat storage medium in the heat storage module 302 is not limited. For example, the set temperature can be no less than 100°C. Preferably, the set temperature can be from 130°C to 250°C. For example, the set temperature can be 100°C, 110°C, 130°C, 150°C, 170°C, 175°C, 200°C, 220°C, or 250°C, etc.

[0139] The heat storage branch 303 is a path for the flow of heat storage medium, and the heat storage branch 303 can be constructed through pipelines.

[0140] The electric heating module 304 is a module that converts electrical energy into heat energy. The electric heating module 304 is installed in the heat storage branch 303, so that the electric heating module 304 can heat the heat storage medium in the heat storage branch 303.

[0141] In this embodiment, the thermal energy is temporarily stored using the thermal storage module 302. When additional power generation is needed, the generator set 4 converts the thermal energy of the thermal storage medium into electrical energy. When additional power generation is not needed, the thermal storage medium in the thermal storage branch 303 can be continuously or intermittently heated using the electric heating module 304, so that the temperature of the thermal storage medium in the thermal storage module 302 is basically maintained at the set temperature, thus keeping the temperature of the thermal storage medium stable.

[0142] The heating principle of the electric heating module 304 is not limited. For example, the heating principle of the electric heating module 304 includes, but is not limited to, resistance heating or infrared heating.

[0143] As an example, the electric heating module 304 may include a heater and a boiler, the boiler being connected to a heat storage branch 303, the heat storage medium in the heat storage branch 303 being able to enter and exit the boiler, and the heater heating the heat storage medium in the boiler.

[0144] In some embodiments, when the energy storage capacity of the wind-solar-storage power generation unit 2 is not lower than the first threshold, the coordination unit 30 calls the electric heating module 304 to heat the heat storage medium; when the energy storage capacity of the wind-solar-storage power generation unit 2 is lower than the first threshold, the electric heating module 304 stops working.

[0145] The energy storage capacity of the wind-solar-storage power generation unit 2 and the first threshold are as described above and will not be repeated here.

[0146] The electric heating module 304 draws power from the power grid 1 to convert electrical energy into thermal energy of the heat storage medium.

[0147] "Electric heating module 304 stops working" means that the electric heating module 304 is not powered and cannot heat the heat storage medium.

[0148] In this embodiment, when the energy storage capacity of the wind-solar-storage power generation unit 2 is not lower than the first threshold, the stored energy of the wind-solar-storage power generation unit 2 is sufficient to provide a stable power supply, and the electric heating module 304 can draw power from the grid 1 to heat the heat storage medium. When the energy storage capacity of the wind-solar-storage power generation unit 2 is lower than the first threshold, the stored energy of the wind-solar-storage power generation unit 2 is insufficient and it is difficult to provide a stable power supply. In this case, the electric heating module 304 stops working and does not draw power from the grid 1. The temperature of the heat storage medium may drop. Power can be drawn from the grid 1 again when the energy storage capacity of the wind-solar-storage power generation unit 2 reaches the first threshold, thereby increasing the temperature of the heat storage medium.

[0149] In some embodiments, when the energy storage capacity of the wind-solar-storage power generation unit 2 reaches a second threshold, the coordination unit 30 calls the electric heating module 304 to heat the thermal storage medium, and the second threshold is greater than the first threshold.

[0150] In this embodiment, the second threshold is greater than the first threshold. When the energy storage capacity of the wind-solar-storage power generation unit 2 reaches the second threshold, it indicates that the energy storage capacity of the wind-solar-storage power generation unit 2 is too high and may be approaching its energy storage limit. In this case, the coordination unit 30 calls the electric heating module 304 to heat the thermal storage medium, converting the excess electricity into thermal energy of the thermal storage medium for storage. This balances the energy storage demand of the wind-solar-storage power generation unit 2 and reduces the waste of excess capacity. For some embodiments, please refer to [link to relevant documentation]. Figures 1 to 6 The thermal energy unit 3 includes a first thermal energy storage drive module 305 and a second thermal energy storage drive module 306.

[0151] The first heat storage drive module 305 is disposed in the heat storage branch 303 and located between the electric heating module 304 and the heat storage module 302.

[0152] The second thermal storage drive module 306 is installed in the thermal storage main circuit 301 and is located between the thermal storage module 302 and the generator set 4.

[0153] In this embodiment, the first thermal storage drive module 305 provides the driving force for the flow of the thermal storage medium, allowing it to circulate among the electric heating module 304, the thermal storage module 302, and the thermal storage branch 303. This allows the low-temperature thermal storage medium from the thermal storage module 302 to flow more rapidly through the electric heating module 304, improving efficiency. The second thermal storage drive module 306 provides the driving force for the flow of the thermal storage medium, allowing it to circulate among the thermal storage module 302, the generator set 4, and the thermal storage main circuit 301. This allows the high-temperature thermal storage medium from the thermal storage module 302 to flow more rapidly through the generator set 4, improving efficiency.

[0154] It is understandable that the terms "high-temperature heat storage medium" and "low-temperature heat storage medium" are relative, with the temperature of the low-temperature heat storage medium being lower than that of the high-temperature heat storage medium.

[0155] The type of the first heat storage drive module 305 is not limited, and the first heat storage drive module 305 includes, but is not limited to, an electric liquid pump or an electric air pump, etc.

[0156] The type of the second heat storage drive module 306 is not limited, and the second heat storage drive module 306 includes, but is not limited to, an electric liquid pump or an electric air pump, etc.

[0157] In some embodiments, the heat storage module 302 includes an underground heating network.

[0158] Underground heating network refers to a network of pipes buried underground for transmitting heat energy. It can be a pipeline network between a heat source (such as a boiler room or heating center) and the user end, or it can be an existing urban heating network or part of a municipal or district heating system.

[0159] In this embodiment, the underground heating network can be an existing urban heating network. The underground heating network is used as part of the thermal energy unit 3 to achieve supplementary power generation. When the integrated energy power supply unit has an application unit 6, the underground heating network can be used to meet the heating needs of users such as urban residents. In this way, by using the existing urban heating network to achieve supplementary power generation and heating, the initial investment of the integrated energy power supply unit can be reduced.

[0160] In some embodiments, please refer to Figures 1 to 6 The thermal energy unit 3 includes a fifth switch module 307, which is located in the thermal storage main circuit 301.

[0161] The fifth switch module 307 can be opened or closed, thereby connecting or disconnecting the thermal storage main circuit 301.

[0162] For example, please refer to Figures 1 to 6 In an embodiment where a second heat storage drive module 306 is also provided in the heat storage main circuit 301, the fifth switch module 307 may be located between the second heat storage drive module 306 and the heat storage module 302.

[0163] In this embodiment, the flow path of the thermal storage medium can be controlled by opening and closing the fifth switch module 307. When the thermal storage medium flows through the generator set 4 and the thermal storage module 302, the thermal storage medium can be used to generate electricity for the generator set 4. Alternatively, by closing the fifth switch module 307, the thermal storage medium can be prevented from flowing through the generator set 4, thereby stopping power generation.

[0164] In some embodiments, please refer to Figure 2The integrated energy power supply unit includes a first mode. When the integrated energy power supply unit is in the first mode, the generator set 4, the first heat exchange unit 5 and the demand module 61 are all in a shutdown state; the wind-solar-storage power generation unit 2, the heat storage module 302 and the electric heating module 304 are all in a working state.

[0165] As an example, in an embodiment where a first heat storage drive module 305 is provided in the heat storage branch 303 and a heat exchange drive module 63 is provided in the temperature regulation main circuit 62, when the integrated energy power supply unit is in the first mode, the first heat storage drive module 305 is in the working state and the heat exchange drive module 63 is in the shutdown state.

[0166] In this embodiment, when the wind-solar-storage power generation unit 2 can meet the needs of the power grid 1 and the demand module 61 does not require temperature regulation (heating or cooling), the integrated energy power supply unit can be in the first mode. In this way, the generator set 4, the first heat exchange unit 5 and the demand module 61 are all in the shutdown state, and the heat storage circuit 301 and the temperature regulation circuit 62 are in the cut-off state. The wind-solar-storage power generation unit 2 is in the working state and can supply power to the power grid 1 to meet the needs of the power grid 1. The heat storage module 302 and the electric heating module 304 are both in the working state. The electric heating module 304 maintains the energy loss of the heat storage module 302 and keeps the heat storage medium in the heat storage module 302 at the set temperature.

[0167] In some embodiments, please refer to Figure 2 The integrated energy power supply unit includes a second mode. When the integrated energy power supply unit is in the second mode, the generator set 4 is in a shutdown state, while the wind-solar-storage power generation unit 2, the electric heating module 304, the heat storage module 302, the first heat exchange unit 5, and the demand module 61 are all in working state.

[0168] As an example, in an embodiment where a first heat storage drive module 305 is provided in the heat storage branch 303 and a heat exchange drive module 63 is provided in the temperature regulation main circuit 62, when the integrated energy power supply unit is in the second mode, both the first heat storage drive module 305 and the heat exchange drive module 63 are in working condition.

[0169] In this embodiment, when the wind-solar-storage power generation unit 2 can meet the needs of the power grid 1 and the demand module 61 needs temperature regulation, such as for heating, the integrated energy power supply unit can be in the second mode. In this mode, the generator set 4 is in a shutdown state, and the thermal storage main circuit 301 is in a cut-off state; the wind-solar-storage power generation unit 2 is in a working state and can supply power to the power grid 1 to meet its needs; the electric heating module 304, the thermal storage module 302, the first heat exchange unit 5, and the demand module 61 are all in a working state. The thermal storage module 302 needs to meet the heating demand and maintain a set temperature. The electric heating module 304 maintains the energy loss of the thermal storage module 302. The thermal storage branch 303 is in a conducting state to maintain the thermal storage medium in the thermal storage module 302 at a set temperature. The first heat exchange unit 5 and the demand module 61 are in a working state, and the thermal exchange main circuit is in a conducting state to meet the temperature regulation, such as for heating.

[0170] In some embodiments, please refer to Figure 2 The integrated energy power supply unit includes a third mode. When the integrated energy power supply unit is in the third mode, the wind-solar-storage power generation unit 2, the first heat exchange unit 5, the demand module 61 and the electric heating module 304 are all in a shutdown state; the generator set 4 and the heat storage module 302 are both in a working state.

[0171] As an example, in an embodiment where a second thermal storage drive module 306 is provided in the thermal storage main circuit 301, the second thermal storage drive module 306 is in operation when the integrated energy power supply unit is in the third mode.

[0172] In this embodiment, when the wind-solar-storage power generation unit 2 cannot meet the needs of the power grid 1 and the demand module 61 does not require temperature regulation (heating or cooling), the integrated energy power supply unit can be in the third mode. In this mode, the wind-solar-storage power generation unit 2, the first heat exchange unit 5, the demand module 61, and the electric heating module 304 are all in a shutdown state, and the heat storage branch 303 and the temperature regulation main circuit 62 are both in a cut-off state. The generator set 4 and the heat storage module 302 are both in a working state, and the heat storage main circuit 301 is in a conducting state. The heat storage medium provides heat energy to drive the generator set 4 to operate, supplying power to the power grid 1 and meeting its needs. When the power grid 1 is insufficient, the electric heating module 304 can stop drawing power from the power grid 1, and the temperature of the heat storage medium in the heat storage module 302 will decrease.

[0173] In some embodiments, please refer to Figure 2 The integrated energy power supply unit includes a fourth mode. When the integrated energy power supply unit is in the fourth mode, the wind-solar-storage power generation unit 2 and the electric heating module 304 are in a shutdown state, while the generator set 4, the heat storage module 302, the first heat exchange unit 5 and the demand module 61 are all in a working state.

[0174] As an example, in an embodiment where a first heat storage drive module 305 is provided in the heat storage branch 303, a second heat storage drive module 306 is provided in the heat storage main circuit 301, and a heat exchange drive module 63 is provided in the temperature regulation main circuit 62, when the integrated energy power supply unit is in the fourth mode, the first heat storage drive module 305, the second heat storage drive module 306, and the heat exchange drive module 63 are all in working condition.

[0175] In this embodiment, when the wind-solar-storage power generation unit 2 cannot meet the needs of the power grid 1 and the demand module 61 needs temperature regulation (heating or cooling), the integrated energy power supply unit can be in the fourth mode. In this mode, the wind-solar-storage power generation unit 2 and the electric heating module 304 are in a shutdown state. However, the first thermal storage drive module 305 is in a working state. The generator set 4, thermal storage module 302, first heat exchange unit 5 and demand module 61 are all in a working state. The thermal storage main circuit 301 is in a conducting state. The thermal storage medium in the thermal storage module 302 provides energy to drive the generator set to work, supply power to the power grid 1, and meet the needs of the power grid 1. The thermal storage branch 303 and the temperature regulation main circuit 62 are both in a conducting state. The first thermal storage drive module 305 drives the thermal storage medium through the first heat exchange unit 5, and the heat exchange drive module 63 drives the heat exchange medium through the first heat exchange unit 5, realizing heat exchange between the thermal storage medium and the heat exchange medium, regulating the temperature of the demand module 61, and providing heating or cooling to the user end. If the power supply to grid 1 is insufficient, the electric heating module 304 can stop drawing power from grid 1, and the temperature of the heat storage medium in the heat storage module 302 will drop.

[0176] In some embodiments, please refer to Figure 4 , Figure 5 and Figure 6 The heat storage branch 303 has a fifth node 3031 and a sixth node 3032 located at both ends of the electric heating module 304. The integrated energy power supply unit includes a second heat exchange unit 8, a heat storage branch 7, and a waste heat unit 9. The two ends of the heat storage branch 7 are connected to the fifth node 3031 and the sixth node 3032. The second heat exchange unit 8 is located in the heat storage branch 7. The waste heat unit 9 is connected to the second heat exchange unit 8, and the second heat exchange unit 8 is used to realize heat exchange between the waste heat unit 9 and the heat storage medium in the heat storage branch 7. The coordination unit 30 can call the waste heat unit 9 to heat the heat storage medium.

[0177] The second heat exchange unit 8 is used to transfer heat between the waste heat unit 9 and the heat storage medium in the heat storage branch 7. In other words, the waste heat unit 9 can release heat to the heat storage medium in the heat storage branch 7 through the second heat exchange unit 8.

[0178] The heat storage branch 7 is a path for the flow of heat storage working fluid, and the heat storage branch 7 can be constructed through pipelines.

[0179] Waste heat unit 9 refers to the heat energy that is not effectively utilized in urban production and daily life. It mainly includes the heat energy generated by industrial activities, including but not limited to fuel combustion, chemical reactions and / or equipment operation. For example, the heat generated by exothermic reactions in chemical production, the heat generated by friction during the operation of mechanical equipment, etc.

[0180] In this embodiment, urban waste heat generated by waste heat unit 9 is used to heat the heat storage medium, realizing the energy reuse of waste heat. The energy consumption for heating the heat storage medium is reduced by the second heat exchange unit 8, improving system efficiency. The coordination unit 30 can call waste heat unit 9 to heat the heat storage medium, so as to call at least one of waste heat unit 9 and heat storage module 302 to heat the heat storage medium.

[0181] The specific structure of the second heat exchange unit 8 is not limited, and the second heat exchange unit 8 may include a heat pump unit. The heat pump unit includes a compressor, evaporator, condenser, and expansion valve, etc. The heat pump unit realizes heat exchange based on the heat pump principle, and uses waste heat to drive the heat pump unit, thereby improving the overall energy utilization efficiency.

[0182] In some embodiments, please refer to Figure 5 and Figure 6 The waste heat unit 9 may include a waste heat module 91 and a waste heat main circuit 92. The waste heat main circuit 92 is connected to the second heat exchange unit 8, and the waste heat module 91 is disposed in the waste heat main circuit 92.

[0183] Waste heat module 91 is a module that generates waste heat, such as a chemical plant, steel plant or other module.

[0184] The waste heat main loop 92 is used as the path for the flow of waste heat working fluid, and the waste heat main loop 92 can be constructed through pipelines.

[0185] Waste heat working fluid is a fluid that carries waste heat; for example, waste heat working fluid can be in liquid or gaseous state, etc.

[0186] The waste heat working medium is a flowable fluid, and the type of waste heat working medium is not limited. For example, the waste heat working medium can be water or an aqueous solution of ethylene glycol, etc.

[0187] In this embodiment, the waste heat generated by the waste heat unit 9 can be transferred to the heat storage medium through the waste heat working medium.

[0188] In some embodiments, please refer to Figures 4 to 6 The integrated energy power supply unit includes a sixth switch module 10 and a seventh switch module 20.

[0189] The sixth switch module 10 is located in the heat storage branch 7 and between the second heat exchange unit 8 and the sixth node 3032;

[0190] The seventh switch module 20 is located in the heat storage branch 303 and between the electric heating module 304 and the sixth node 3032.

[0191] The sixth switch module 10 can be opened or closed, thereby connecting or disconnecting the path between the second heat exchange unit 8 and the sixth node 3032.

[0192] The seventh switch module 20 can be opened or closed, thereby connecting or disconnecting the path between the electric heating module 304 and the sixth node 3032.

[0193] In this embodiment, the flow path of the heat storage medium can be controlled by opening and closing the sixth switch module 10 and the seventh switch module 20. When the heat storage medium flows through the electric heating module 304, it can be heated by the electric heating module 304. By closing the seventh switch module 20, the heat storage medium can be prevented from flowing through the electric heating module 304. When the heat storage medium flows through the second heat exchange unit 8, it can be heated by the waste heat medium. By closing the sixth switch module 10, the heat storage medium can be prevented from flowing through the second heat exchange unit 8.

[0194] In some embodiments, the first heat storage drive module 305 may be located between the sixth node 3032 and the first heat exchange unit 5.

[0195] In some embodiments, please refer to Figure 5 The integrated energy power supply unit includes a fifth mode. When the integrated energy power supply unit is in the fifth mode, the generator set 4, electric heating module 304, first heat exchange unit 5 and demand module 61 are all in a shutdown state; the wind-solar-storage power generation unit 2, heat storage module 302, waste heat unit 9 and second heat exchange unit 8 are all in a working state.

[0196] As an example, in an embodiment where the heat storage branch 303 is equipped with the first heat storage drive module 305, the first heat storage drive module 305 is also in operation when the integrated energy power supply unit is in the fifth mode.

[0197] In this embodiment, when the wind-solar-storage power generation unit 2 can meet the needs of the power grid 1, has waste heat, and the demand module 61 does not require temperature regulation (heating or cooling), the integrated energy power supply unit can be in the fifth mode. In this way, the generator set 4, the electric heating module 304, the first heat exchange unit 5, and the demand module 61 are all in a shutdown state, and the heat storage main circuit 301 and the temperature regulation main circuit 62 are both in a cut-off state. The wind-solar-storage power generation unit 2 is in a working state and can supply power to the power grid 1 to meet the needs of the power grid 1. The electric heating module 304 is in a shutdown state, and the heat storage branch 303 is in a cut-off state. The heat storage module 302, the waste heat unit 9, and the second heat exchange unit 8 are all in a working state. The waste heat unit 9 maintains the energy loss of the heat storage module 302 and keeps the heat storage medium in the heat storage module 302 at a set temperature.

[0198] In some embodiments, please refer to Figure 5 The integrated energy power supply unit includes a sixth mode. When the integrated energy power supply unit is in the sixth mode, the generator set 4, the second heat exchange unit 8, the waste heat unit 9, the first heat exchange unit 5 and the demand module 61 are all in a shutdown state, while the wind-solar-storage power generation unit 2, the electric heating module 304 and the heat storage module 302 are all in a working state.

[0199] As an example, when the integrated energy power supply unit is in the sixth mode, the first thermal storage drive module 305 is in the working state, while the second thermal storage drive module 306 and the heat exchange drive module 63 can be in the shutdown state.

[0200] In this embodiment, when the wind-solar-storage power generation unit 2 can meet the needs of the power grid 1, the demand module 61 does not need temperature regulation (e.g., for heating), and there is no urban waste heat, the integrated energy power supply unit can be in the sixth mode. In this way, the generator set 4 is in a shutdown state, and the thermal storage main circuit 301 is in a cut-off state; the second heat exchange unit 8 and the waste heat unit 9 are both in a shutdown state, and the waste heat unit 9 does not provide heat to the thermal storage medium; the wind-solar-storage power generation unit 2 is in a working state and can supply power to the power grid 1 to meet the needs of the power grid 1; the electric heating module 304 and the thermal storage module 302 are both in a working state, the thermal storage branch 303 is in a conducting state, the electric heating module 304 maintains the energy loss of the thermal storage module 302, and keeps the thermal storage medium in the thermal storage module 302 at a set temperature.

[0201] In some embodiments, please refer to Figure 5 The integrated energy power supply unit includes a seventh mode. When the integrated energy power supply unit is in the seventh mode, the generator set 4, the second heat exchange unit 8 and the waste heat unit 9 are in a shutdown state, while the wind-solar-storage power generation unit 2, the electric heating module 304, the heat storage module 302, the first heat exchange unit 5 and the demand module 61 are all in a working state.

[0202] As an example, when the integrated energy power supply unit is in the seventh mode, the first thermal storage drive module 305 and the heat exchange drive module 63 are in working condition, while the second thermal storage drive module 306 can be in a shutdown state.

[0203] In this embodiment, when the wind-solar-storage power generation unit 2 can meet the needs of the power grid 1 and the demand module 61 needs temperature regulation, such as for heating, the integrated energy power supply unit can be in the seventh mode. In this way, the generator set 4 is in a shutdown state, and the thermal storage main circuit 301 is in a cut-off state; the second heat exchange unit 8 and the waste heat unit 9 are in a shutdown state, and the waste heat unit 9 does not provide heat to the thermal storage medium; the wind-solar-storage power generation unit 2 is in a working state and can supply power to the power grid 1 to meet the needs of the power grid 1; both the electric heating module 304 and the thermal storage module 302 are in a working state, and the electric heating module 304 maintains the energy loss of the thermal storage module 302 and keeps the thermal storage medium in the thermal storage module 302 at a set temperature; both the first heat exchange unit 5 and the demand module 61 are in a working state to meet the temperature regulation, such as for heating.

[0204] In some embodiments, please refer to Figure 5 The integrated energy power supply unit includes an eighth mode. When the integrated energy power supply unit is in the eighth mode, the wind-solar-storage power generation unit 2, waste heat unit 9, second heat exchange unit 8, first heat exchange unit 5, demand module 61 and electric heating module 304 are all in a shutdown state; the generator set 4 and the heat storage module 302 are both in a working state.

[0205] As an example, when the integrated energy power supply unit is in the eighth mode, the second thermal storage drive module 306 is also in operation, while the first thermal storage drive module 305 and the heat exchange drive module 63 are in shutdown mode.

[0206] In this embodiment, when the wind-solar-storage power generation unit 2 cannot meet the needs of grid 1 and the demand module 61 does not require temperature regulation (heating or cooling), the integrated energy power supply unit can be in the eighth mode. In this mode, the wind-solar-storage power generation unit 2, waste heat unit 9, second heat exchange unit 8, first heat exchange unit 5, demand module 61, and electric heating module 304 are all in a shutdown state, and the heat storage branch 303 and the temperature regulation main circuit 62 are both in a cut-off state. The generator set 4 and the heat storage module 302 are both in a working state, and the heat storage main circuit 301 is in a conducting state. The heat storage medium provides heat energy to drive the generator set 4 to operate, supplying power to grid 1 and meeting the needs of grid 1. If grid 1 has insufficient power, the electric heating module 304 can stop drawing power from grid 1, the second heat exchange unit 8 also stops working, and the temperature of the heat storage medium in the heat storage module 302 will decrease.

[0207] In some embodiments, please refer to Figure 5The integrated energy power supply unit includes a ninth mode. When the integrated energy power supply unit is in the ninth mode, the wind-solar-storage power generation unit 2, waste heat unit 9, second heat exchange unit 8 and electric heating module 304 are all in a shutdown state; the generator set 4, heat storage module 302, first heat exchange unit 5 and demand module 61 are all in a working state.

[0208] As an example, when the integrated energy power supply unit is in the ninth mode, the first thermal storage drive module 305, the second thermal storage drive module 306, and the heat exchange drive module 63 are all in operation.

[0209] In this embodiment, when the wind-solar-storage power generation unit 2 cannot meet the needs of the power grid 1 and the demand module 61 needs temperature regulation (heating or cooling), the integrated energy power supply unit can be in the ninth mode. In this way, the wind-solar-storage power generation unit 2, waste heat unit 9, second heat exchange unit 8, and electric heating module 304 are all in a shutdown state. However, the first thermal storage drive module 305 is in a working state, and the generator set 4, thermal storage module 302, first heat exchange unit 5, and demand module 61 are all in a working state. The thermal storage medium in the thermal storage module 302 provides energy to drive the generator set to work, supplying power to the power grid 1 and meeting the needs of the power grid 1. The first thermal storage drive module 305 drives the thermal storage medium through the first heat exchange unit 5, and the heat exchange drive module 63 drives the heat exchange medium through the first heat exchange unit 5, realizing heat exchange between the thermal storage medium and the heat exchange medium, regulating the temperature of the demand module 61, and providing heating for the user end. If the power supply to grid 1 is insufficient, the electric heating module 304 can stop drawing power from grid 1, the second heat exchange unit 8 will also stop working, and the temperature of the heat storage medium in the heat storage module 302 will drop.

[0210] In some embodiments, please refer to Figures 4 to 6 The thermal energy unit 3 includes a first geothermal well 31, a second geothermal well 32, and a geothermal energy main circuit 33. The temperature of the second geothermal well 32 is lower than that of the first geothermal well 31. The geothermal energy main circuit 33 connects the first geothermal well 31 and the second geothermal well 32. The geothermal energy main circuit 33 is connected to a generator set 4, which converts geothermal energy into electrical energy.

[0211] The first geothermal well 31, the second geothermal well 32, and the geothermal main circuit 33 have been described previously and will not be repeated here.

[0212] In this embodiment, the thermal energy unit 3 uses geothermal energy, a natural thermal energy source. In other words, it uses natural geothermal resources to provide thermal energy. Geothermal energy is renewable. Compared with wind and solar energy, geothermal energy is basically unaffected by weather or seasons and can be supplied more continuously and stably. When the power supply from the wind, solar and energy storage power generation unit 2 is insufficient, the generator set 4 can convert geothermal energy into electrical energy to supplement power generation.

[0213] The first heat exchange unit 5 may include an absorption chiller, which is a refrigeration device driven by thermal energy. It achieves a refrigeration effect through the absorption and desorption cycle of a working fluid pair. The absorption chiller uses thermal energy as its driving force, eliminating the need for a compressor. The refrigeration cycle is completed through a combination of an absorber and a generator. The working fluid pair includes, but is not limited to, ammonia-water or lithium bromide-water, etc., where the low-boiling-point component is the refrigerant (such as water or ammonia), and the high-boiling-point component is the absorbent (such as lithium bromide solution).

[0214] An absorption chiller unit may include a generator, condenser, evaporator, absorber, and auxiliary equipment. The generator heats the solution using an external heat source (such as geothermal resources or a heat storage medium) and separates refrigerant vapor. The condenser condenses the refrigerant vapor into a liquid state, releasing heat to the heat exchange medium. The evaporator absorbs heat as the liquid refrigerant evaporates, producing a cooling effect. The absorber absorbs the refrigerant vapor, forming a concentrated solution and releasing heat. Auxiliary equipment includes a solution pump and a throttling valve; the solution pump is used to deliver the solution, and the throttling valve is used to control the pressure.

[0215] The principle of an absorption chiller includes a cycle consisting of heating and desorption, condensation and evaporation, and absorption and recovery. Heating and desorption refers to the process where a heat source inside the generator heats a dilute solution, separating the refrigerant vapor. Condensation and evaporation refer to the vapor liquefying in the condenser, then entering the evaporator after throttling and absorbing heat to vaporize again. Absorption and recovery refers to the process where the evaporated vapor is absorbed by the concentrated solution in the absorber, releasing heat, and then returned to the generator via a solution pump, completing the cycle.

[0216] In some embodiments, the first heat exchange unit 5 may also have a flow channel for heat exchange between the heat storage medium and the heat exchange medium, so that the heat storage medium and the heat exchange medium can directly exchange heat in the first heat exchange unit 5 without passing through intermediate media such as refrigerant.

[0217] In some embodiments, the first heat exchange unit 5 may include a heat pump unit. The heat pump unit includes a compressor, evaporator, condenser, and expansion valve, etc., and the heat pump unit realizes heat exchange based on the heat pump principle.

[0218] In some embodiments, please refer to Figure 8 The integrated energy power supply unit includes a tenth mode. When the integrated energy power supply unit is in the tenth mode, the wind-solar-storage power generation unit 2, the first geothermal well 31, the second geothermal well 32, the first heat exchange unit 5, and the demand module 61 are in working condition; the generator unit 4 is in shutdown condition.

[0219] As an example, in an embodiment where a heat exchange drive module 63 is provided in the temperature control main circuit 62, the heat exchange drive module 63 is in working state when the integrated energy power supply unit is in the tenth mode.

[0220] In this embodiment, when the wind-solar-storage power generation unit 2 can meet the needs of the power grid 1 and the demand module 61 needs temperature regulation (heating or cooling), the integrated energy power supply unit can be in the tenth mode. In this way, the wind-solar-storage power generation unit 2 supplies power to the power grid 1 and meets the needs of the power grid 1; the generator set 4 is in the shutdown state, and the geothermal resources will not drive the generator set 4 to generate electricity; the first geothermal well 31, the second geothermal well 32, the first heat exchange unit 5 and the demand module 61 are in the working state, that is, the geothermal energy main circuit 33 and the temperature regulation main circuit 62 are in the conducting state, and the geothermal resources exchange heat with the heat exchange medium to provide cooling or heating to the user end.

[0221] It is understandable that a pressurization module can be installed in the first geothermal well 31 to drive geothermal resources into the geothermal energy main circuit 33, and a depressurization module can be installed in the second geothermal well 32 to drive geothermal resources back into the second geothermal well 32.

[0222] In some embodiments, please refer to Figure 8 The integrated energy power supply unit includes an eleventh mode. When the integrated energy power supply unit is in the eleventh mode, the first geothermal well 31, the second geothermal well 32, the generator set 4, the first heat exchange unit 5 and the demand module 61 are in working condition, while the wind, solar and energy storage power generation unit 2 is in shutdown condition.

[0223] As an example, when the integrated energy power supply unit is in mode eleven, the heat exchange drive module 63 is in operation.

[0224] In this embodiment, when the wind-solar-storage power generation unit 2 cannot meet the needs of the power grid 1 and the demand module 61 needs temperature regulation (heating or cooling), the integrated energy power supply unit can be in the eleventh mode. In this way, the wind-solar-storage power generation unit 2 is in a shutdown state and cannot supply power to the power grid 1; the generator set 4 is in a working state, and the geothermal resources drive the generator set 4 to generate electricity; the first geothermal well 31, the second geothermal well 32, the first heat exchange unit 5 and the demand module 61 are in a working state, that is, the geothermal energy main circuit 33 and the temperature regulation main circuit 62 are in a conducting state, and the geothermal resources exchange heat with the heat exchange medium to provide cooling or heating to the user end.

[0225] In some embodiments, please refer to Figure 8 The integrated energy power supply unit includes a twelfth mode. When the integrated energy power supply unit is in the twelfth mode, the first geothermal well 31, the second geothermal well 32, the generator set 4, the first heat exchange unit 5, the heating module 65, and the demand module 61 are in working condition; the wind, solar, and energy storage power generation unit 2 is in shutdown condition.

[0226] As an example, when the integrated energy power supply unit is in the twelfth mode, the heat exchange drive module 63 is in operation.

[0227] In this embodiment, when the wind-solar-storage power generation unit 2 cannot meet the needs of the power grid 1, and the heating module 65 and the demand module 61 require cooling, the integrated energy power supply unit can be in the twelfth mode. In this way, the wind-solar-storage power generation unit 2 is in a shutdown state and cannot supply power to the power grid 1; the generator set 4 is in a working state, and the geothermal resources drive the generator set 4 to generate electricity; the first geothermal well 31, the second geothermal well 32, the first heat exchange unit 5, the heating module 65 and the demand module 61 are in a working state. That is to say, the geothermal energy main circuit 33, the temperature regulation main circuit 62 and the cooling branch circuit 64 are in a conductive state, and the geothermal resources exchange heat with the heat exchange medium to provide cooling for the heating module 65 and the demand module 61.

[0228] In some embodiments, please refer to Figure 8 The integrated energy power supply unit includes a thirteenth mode. When the integrated energy power supply unit is in the thirteenth mode, the first geothermal well 31, the second geothermal well 32, the generator set 4, the first heat exchange unit 5, and the demand module 61 are in working condition, the geothermal branch 34 is in conducting condition, and the temperature regulation main circuit 62 is in cut-off condition; the wind-solar-storage power generation unit 2 and the heat exchange drive module 63 are in shutdown condition.

[0229] In this embodiment, when the wind-solar-storage power generation unit 2 cannot meet the needs of the power grid 1, the heating module 65 does not need cooling, and the demand module 61 needs heating, the integrated energy power supply unit can be in the thirteenth mode. In this way, the wind-solar-storage power generation unit 2 is in a shutdown state and cannot supply power to the power grid 1; the generator set 4 is in a working state, and the geothermal resources drive the generator set 4 to generate electricity; the first geothermal well 31, the second geothermal well 32, the first heat exchange unit 5, and the demand module 61 are in a working state, and the geothermal energy branch 34 is in a conducting state. That is to say, the geothermal energy main circuit 33 and the geothermal energy branch 34 are in a conducting state, the temperature regulation main circuit 62 is in a cut-off state, the geothermal resources do not exchange heat with the heat exchange medium, but instead, the geothermal resources enter the geothermal energy branch 34 to provide heating for the demand module 61.

[0230] In some embodiments, please refer to Figure 8 The integrated energy power supply unit includes the fourteenth mode. When the integrated energy power supply unit is in the fourteenth mode, the first geothermal well 31, the second geothermal well 32, the generator set 4, the first heat exchange unit 5, the heating module 65 and the demand module 61 are in working state, the geothermal branch 34 is in the conducting state, and the wind, solar and energy storage power generation unit 2 is in the shutdown state.

[0231] As an example, when the integrated energy power supply unit is in the fourteenth mode, the heat exchange drive module 63 is in operation.

[0232] In this embodiment, when the wind-solar-storage power generation unit 2 cannot meet the needs of the power grid 1, the demand module 61 needs heating, and the heating module 65 needs cooling, the integrated energy power supply unit can be in the fourteenth mode. In this way, the wind-solar-storage power generation unit 2 is in a shutdown state and cannot supply power to the power grid 1; the generator set 4 is in a working state, and the geothermal resources drive the generator set 4 to generate electricity; the first geothermal well 31, the second geothermal well 32, the first heat exchange unit 5, and the heating module 65 are in a working state, and the geothermal energy branch 34 is in a conducting state. That is to say, the geothermal energy main circuit 33, the geothermal energy branch 34, and the cooling branch 64 are in a conducting state, and the path of the temperature regulation main circuit 62 in the demand module 61 is in a closed state, that is, the path of the temperature regulation main circuit 62 between the third node 621 and the fourth node 622 is in a closed state. The geothermal resources exchange heat with the heat exchange medium, the heating module 65 achieves cooling, and the geothermal resources enter the geothermal energy branch 34 to provide heating for the demand module 61.

[0233] In some embodiments, please refer to Figure 8 The integrated energy power supply unit includes the fifteenth mode. When the integrated energy power supply unit is in the fifteenth mode, the wind-solar-storage power generation unit 2, the first geothermal well 31, the second geothermal well 32, the first heat exchange unit 5, the heating module 65 and the demand module 61 are in working state, the geothermal branch 34 is in the cut-off state, and the generator set 4 is in the shutdown state.

[0234] As an example, when the integrated energy power supply unit is in the fifteenth mode, the heat exchange drive module 63 is in operation.

[0235] In this embodiment, when the wind-solar-storage power generation unit 2 can meet the needs of the power grid 1, and the heating module 65 and the demand module 61 need cooling, the integrated energy power supply unit can be in the fifteenth mode. In this way, the wind-solar-storage power generation unit 2 is in working state, supplying power to the power grid 1 and meeting the needs of the power grid 1; the generator set 4 is in the off state, and the geothermal resources will not drive the generator set 4 to generate electricity; the first geothermal well 31, the second geothermal well 32, the first heat exchange unit 5, the heating module 65 and the demand module 61 are in working state, and the geothermal energy branch 34 is in the off state. That is to say, the geothermal energy main circuit 33, the temperature regulation main circuit 62 and the cooling branch 64 are in the conducting state, and the geothermal resources exchange heat with the heat exchange medium, so that the heating module 65 and the demand module 61 can achieve cooling.

[0236] In some embodiments, please refer to Figure 8The integrated energy power supply unit includes a sixteenth mode. When the integrated energy power supply unit is in the sixteenth mode, the wind-solar-storage power generation unit 2, the first geothermal well 31, the second geothermal well 32, the first heat exchange unit 5 and the demand module 61 are in working condition, and the geothermal branch 34 is in a conducting state; the heating module 65 and the generator set 4 are in a shutdown state.

[0237] As an example, when the integrated energy power supply unit is in the sixteenth mode, the heat exchange drive module 63 is in a shutdown state.

[0238] In this embodiment, when the wind-solar-storage power generation unit 2 can meet the needs of the power grid 1, the heating module 65 has no cooling needs, and the demand module 61 needs heating, the integrated energy power supply unit can be in the sixteenth mode. In this way, the wind-solar-storage power generation unit 2 is in working state, supplying power to the power grid 1 and meeting the needs of the power grid 1; the generator set 4 is in a shutdown state, and geothermal resources will not drive the generator set 4 to generate electricity; the first geothermal well 31, the second geothermal well 32, the first heat exchange unit 5 and the demand module 61 are in working state, the geothermal energy branch 34 is in a conducting state, the geothermal energy main circuit 33 is in a conducting state, the cooling branch 64 and the temperature regulation main circuit 62 are in a cut-off state, the geothermal resources and the heat exchange medium will not exchange heat, and the geothermal resources enter the geothermal energy branch 34 to provide heating for the demand module 61.

[0239] In some embodiments, please refer to Figure 8 The integrated energy power supply unit includes the seventeenth mode. When the integrated energy power supply unit is in the seventeenth mode, the wind-solar-storage power generation unit 2, the first geothermal well 31, the second geothermal well 32, the first heat exchange unit 5, the heating module 65 and the demand module 61 are all in working state, the geothermal energy branch 34 is in the conducting state, and the generator set 4 is in the shutdown state.

[0240] As an example, when the integrated energy power supply unit is in the seventeenth mode, the heat exchange drive module 63 is in operation.

[0241] In this embodiment, when the wind-solar-storage power generation unit 2 can meet the needs of the power grid 1, the demand module 61 needs heating, and the heating module 65 needs cooling, the integrated energy power supply unit can be in the seventeenth mode. In this way, the wind-solar-storage power generation unit 2 is in working state, supplying power to the power grid 1; the generator set 4 is in a shutdown state, and geothermal resources will not drive the generator set 4 to generate electricity; the first geothermal well 31, the second geothermal well 32, the first heat exchange unit 5, the heating module 65, and the demand module 61 are all in working state, the geothermal energy branch 34 is in a conducting state, the geothermal energy main circuit 33, the geothermal energy branch 34, and the cooling branch 64 are in a conducting state, and the path of the temperature regulation main circuit 62 flowing through the demand module 61 is in a closed state, that is, the path of the temperature regulation main circuit 62 between the third node 621 and the fourth node 622 is in a closed state. The geothermal resources exchange heat with the heat exchange medium, the heating module 65 achieves cooling, and the geothermal resources enter the geothermal energy branch 34 to provide heating for the demand module 61.

[0242] It should be noted that the coordination unit 30 can coordinate the integrated energy power supply unit to operate in any one of the following modes: mode 1, mode 2, mode 3, mode 4, mode 5, mode 6, mode 7, mode 8, mode 9, mode 10, mode 11, mode 12, mode 13, mode 14, mode 15, mode 16, and mode 17. Of course, the coordination unit 30 can also coordinate the integrated energy power supply unit to achieve other modes as needed.

[0243] The following specific embodiment further illustrates the integrated energy supply unit provided in this application. Please refer to [link / reference]. Figure 2The integrated energy power supply unit includes a coordination unit 30, a wind-solar-storage power generation unit 2, a thermal energy unit 3, and a generator set 4. The wind-solar-storage power generation unit 2 is electrically connected to the power grid 1, converting at least one of wind energy and solar energy into electrical energy and transmitting it to the power grid 1. The generator set 4 is also electrically connected to the power grid 1, converting the thermal energy from the thermal energy unit 3 into electrical energy and transmitting it to the power grid 1. The coordination unit 30 is used to call upon at least one of the wind-solar-storage power generation unit 2 and the thermal energy unit 3 to generate electricity. Both the application unit 6 and the thermal energy unit 3 are connected to a first heat exchange unit 5, which facilitates heat exchange between the application unit 6 and the thermal energy unit 3. A temperature control circuit 62 is connected to the first heat exchange unit 5, which circulates the heat exchange medium. The first heat exchange unit 5 facilitates heat exchange between the heat exchange medium and the thermal energy unit 3. A demand module 61 is located in the temperature control circuit 62 and is used to provide heating. A heat exchange drive module 63 is located in the temperature control main circuit 62 to drive the flow of the heat exchange medium. A heat storage main circuit 301 is used to circulate the heat storage medium. Both the heat storage module 302 and the generator set 4 are located in the heat storage main circuit 301. The heat storage module 302 stores the heat storage medium, and the generator set 4 converts the thermal energy of the heat storage medium into electrical energy. The two ends of the heat storage branch 303 are connected to the two ends of the heat storage main circuit 301 located at the two ends of the heat storage module 302. An electric heating module 304 is located in the heat storage branch 303 and is used to heat the heat storage medium. A first heat storage drive module 305 is located in the heat storage branch 303, between the electric heating module 304 and the heat storage module 302. A second heat storage drive module 306 is located in the heat storage main circuit 301, between the heat storage module 302 and the generator set 4. The heat storage module 302 includes an underground heating network. The fifth switch module 307 can be located between the second thermal storage drive module 306 and the thermal storage module 302. Both the thermal storage medium and the heat exchange medium are liquid water. The integrated energy power supply unit can have a first mode, a second mode, a third mode, and a fourth mode. These modes are as described above and will not be repeated here.

[0244] In this embodiment, the thermal energy is temporarily stored using the thermal storage module 302. When supplemental power generation is needed, the generator set 4 converts the thermal energy of the thermal storage medium into electrical energy. When supplemental power generation is not needed, the thermal storage medium in the thermal storage branch 303 can be continuously or intermittently heated using the electric heating module 304, so that the temperature of the thermal storage medium in the thermal storage module 302 is basically maintained at the set temperature, thus keeping the temperature of the thermal storage medium stable. The underground heating network can be an existing urban heating network. Using the underground heating network as part of the thermal energy unit 3 can be used to achieve supplemental power generation. When the integrated energy power supply unit has an application unit 6, the underground heating network can be used to meet the heating needs of users, such as urban residents. In this way, by using the existing urban heating network to achieve supplemental power generation and heating, the initial investment of the integrated energy power supply unit can be reduced. The integrated energy power supply unit can meet the heating needs of the demand module 61 and can also supplement the power grid 1 when the power supply from the wind power generation unit is insufficient.

[0245] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit it. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in each embodiment can be combined in any way.

Claims

1. A comprehensive energy supply unit, characterized in that, include: A wind-solar-storage power generation unit is used to connect to the power grid. The wind-solar-storage power generation unit converts at least one of wind energy and solar energy into electrical energy and transmits it to the power grid. The thermal energy unit includes a heat storage module, which is used to store heat storage working fluid; A generator set is used to be electrically connected to the power grid. The generator set converts the thermal energy of the thermal energy unit into electrical energy and transmits it to the power grid. The generator set also converts the thermal energy of the thermal storage medium into electrical energy. A coordination unit, which is used to call at least one of the wind, solar, and energy storage power generation units and the thermal energy unit to generate electricity; The waste heat unit, the coordination unit can call the waste heat unit to heat the heat storage medium.

2. The integrated energy power supply unit according to claim 1, characterized in that, When the energy storage capacity of the wind-solar-storage power generation unit is not lower than the first threshold, the coordination unit calls the wind-solar-storage power generation unit to generate electricity; when the energy storage capacity of the wind-solar-storage power generation unit is lower than the first threshold, the coordination unit calls the thermal energy unit to generate electricity.

3. The integrated energy supply unit according to claim 1, characterized in that, The integrated energy power supply unit includes a first heat exchange unit and an application unit. Both the application unit and the thermal energy unit are connected to the first heat exchange unit, which is used to realize heat exchange between the application unit and the thermal energy unit.

4. The integrated energy supply unit according to claim 3, characterized in that, The application unit includes a demand module and a temperature control main loop. The temperature control main loop is connected to the first heat exchange unit and is used to circulate the heat exchange working fluid. The first heat exchange unit realizes heat exchange between the heat exchange working fluid and the thermal energy unit. The demand module is set in the temperature control main loop and is used to provide at least one function of heating and cooling.

5. The integrated energy supply unit according to claim 4, characterized in that, The thermal energy unit includes: The first geothermal well; The second geothermal well has a lower temperature than the first geothermal well. A geothermal energy main circuit connects the first geothermal energy well and the second geothermal energy well. The geothermal energy main circuit is connected to the generator set, which converts geothermal energy into electrical energy. The geothermal energy main circuit has a first node and a second node, which are located between the first heat exchange unit and the second geothermal energy well. A geothermal energy branch connects the first node and the second node, and the geothermal energy branch is connected to the demand module.

6. The integrated energy supply unit according to claim 4, characterized in that, The temperature control circuit has a third node and a fourth node, which are located at both ends of the first heat exchange unit. The application unit includes: A cooling branch line connects the third node and the fourth node; The heating module is located in the cooling branch; The third switch module is disposed between the third node and the heating module; The fourth switch module is located between the third node and the demand module.

7. The integrated energy supply unit according to any one of claims 1 to 4, characterized in that, The thermal energy unit includes: A thermal storage main circuit is used to circulate the thermal storage working medium, and the thermal storage module and the generator set are both installed in the thermal storage main circuit; A heat storage branch, the two ends of which are connected to the main heat storage circuit located at both ends of the heat storage module; An electric heating module is installed in the heat storage branch, and the electric heating module is used to heat the heat storage medium.

8. The integrated energy supply unit according to claim 7, characterized in that, When the energy storage capacity of the wind-solar-storage power generation unit is not lower than the first threshold, the coordination unit calls the electric heating module to heat the thermal storage medium; when the energy storage capacity of the wind-solar-storage power generation unit is lower than the first threshold, the electric heating module stops working.

9. The integrated energy supply unit according to claim 8, characterized in that, When the energy storage capacity of the wind-solar-storage power generation unit reaches the second threshold, the coordination unit calls the electric heating module to heat the thermal storage medium, where the second threshold is greater than the first threshold.

10. The integrated energy supply unit according to claim 7, characterized in that, The heat storage module includes an underground heating network.

11. The integrated energy supply unit according to claim 7, characterized in that, The thermal storage branch has a fifth node and a sixth node located at both ends of the electric heating module, and the integrated energy power supply unit includes: A heat storage branch circuit, the two ends of which are connected to the fifth node and the sixth node; The second heat exchange unit is disposed in the heat storage branch. The waste heat unit is connected to the second heat exchange unit. The second heat exchange unit is used to realize heat exchange between the waste heat unit and the heat storage working medium in the heat storage branch.

12. The integrated energy supply unit according to any one of claims 1 to 4, characterized in that, The thermal energy unit includes: The first geothermal well; The second geothermal well has a lower temperature than the first geothermal well. The geothermal energy main circuit connects the first geothermal well and the second geothermal well. The geothermal energy main circuit is connected to the generator set, which converts geothermal energy into electrical energy.

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