A power generation system

Abstract

The present invention provides a power generation system, which relates to the technical field of solar thermal utilization. The power generation system comprises: a heat absorption device, comprising a plurality of heat absorption surfaces, for absorbing light energy of sunlight and converting the light energy into heat energy; a photovoltaic panel, which is arranged around the heat absorption surface of the heat absorption device and is used to convert the light energy into electrical energy; a light reflection mirror field, which is used to reflect the incident light of sunlight to the heat absorption surface and the photovoltaic panel; a heat storage device, which is connected to the heat absorption device and is used to store the heat energy absorbed by the heat absorption device; a thermoelectric conversion device, which is connected to the heat storage device and is used to convert the heat energy stored in the heat storage device into electrical energy; a voltage output structure, which is respectively connected to the thermoelectric conversion device and the photovoltaic panel, and is used to receive the electrical energy output by the photovoltaic panel and the thermoelectric conversion device, and output the electrical energy after converting it into a preset voltage value. The scheme of the present invention combines photovoltaic and photothermal power generation, reduces the overflow loss of solar energy, and increases the power generation.

Description

Technical Field

[0001] The invention belongs to the technical field of solar thermal utilization, and in particular relates to a power generation system. Background Art

[0002] The overflow loss of conventional solar thermal power generation systems is about 8%. In order to prevent the overflowing reflected light from burning the non-heating surface structure of the absorber, a special insulation area needs to be set up, which increases the system investment and increases the cost. High-concentration photovoltaic panels have higher photoelectric conversion efficiency and output per unit area than conventional photovoltaic panels, but they need to design a sufficient reflection area. Generally, they need to set up a dish or line focusing reflector separately, and the investment is higher than that of conventional photovoltaic panels. Existing photovoltaic and solar thermal combined technologies mostly set up photovoltaic and solar thermal systems independently, through parallel connection on the power generation side, or use the heat dissipation to heat hot water to provide heat while the high-concentration photovoltaic panels generate electricity, but the temperature of the cooling water is low and not enough for power generation. Summary of the invention

[0003] The purpose of the embodiments of the present invention is to provide a power generation system to solve the problem of solar energy overflow loss in conventional solar thermal power stations in the prior art.

[0004] In order to achieve the above object, the present invention provides a power generation system, comprising:

[0005] A heat absorbing device, comprising a plurality of heat absorbing surfaces, for absorbing light energy of sunlight and converting the light energy into heat energy;

[0006] A photovoltaic panel is arranged around the heat absorbing surface of the heat absorbing device and is used to convert light energy into electrical energy;

[0007] a field of light reflectors for reflecting incident sunlight to the heat absorbing surface and the photovoltaic panels;

[0008] A heat storage device, connected to the heat absorption device, for storing heat energy absorbed by the heat absorption device;

[0009] a thermoelectric conversion device, connected to the heat storage device, for converting the thermal energy stored in the heat storage device into electrical energy;

[0010] The voltage output structure is connected to the thermoelectric conversion device and the photovoltaic cell panel respectively, and is used to receive the electric energy output by the photovoltaic cell panel and the thermoelectric conversion device, and convert the electric energy into a preset voltage value before outputting it.

[0011] Optionally, the heat absorption device comprises:

[0012] Heat absorbers and heat absorption towers;

[0013] The heat absorber is arranged on the heat absorption tower, the heat absorber comprises a plurality of heat absorption surfaces, and the photovoltaic cell panels are arranged around the heat absorption surfaces of the heat absorber.

[0014] Optionally, the heat absorber is a surface heat absorber or a cavity heat absorber.

[0015] Optionally, the photovoltaic cell panel is a high-concentration photovoltaic cell panel.

[0016] Optionally, the optical reflector field comprises:

[0017] A plurality of heliostats are provided, wherein mirror surfaces of the plurality of heliostats are arranged around the heat absorbing device, and the mirror surfaces of the plurality of heliostats face the heat absorbing device.

[0018] Optionally, the photovoltaic panel is rotatable between a first position and a second position relative to the heat absorbing surface;

[0019] In the first position, the photovoltaic cell panel and the heat absorbing surface of the heat absorbing device form a preset angle, and the light reflector field can reflect incident sunlight to the heat absorbing surface and the photovoltaic cell panel;

[0020] In the second position, the photovoltaic panel covers the heat absorbing surface, and the light reflector field is capable of reflecting incident moonlight to the photovoltaic panel.

[0021] Optionally, the heat storage device comprises:

[0022] A first fluid circuit and a high temperature storage tank;

[0023] The first fluid circuit is provided with a heat-conducting fluid, the outlet of the first fluid circuit is connected to the inlet of the high-temperature storage tank, and at least part of the first fluid circuit is provided in the heat absorption device;

[0024] The heat energy absorbed by the heat absorption device is transferred to the heat transfer fluid through the first fluid circuit, and the high-temperature heat transfer fluid is stored in the high-temperature storage tank.

[0025] Optionally, the thermoelectric conversion device comprises:

[0026] A second fluid circuit, a heat exchange structure, a third fluid circuit, a turbine structure and a power generation structure;

[0027] The inlet of the second fluid circuit is in communication with the heat storage device, and at least part of the second fluid circuit is disposed in the heat exchange structure; the second fluid circuit is provided with a heat-conducting fluid for transferring the thermal energy stored in the heat storage device to the heat exchange structure;

[0028] The outlet of the heat exchange structure is connected to the inlet of the third fluid circuit;

[0029] The turbine structure is arranged on the third fluid circuit near the outlet of the heat exchange structure;

[0030] The turbine structure is connected to the power generation structure;

[0031] Among them, after the power generation medium in the heat exchange structure exchanges heat with the heat transfer fluid, the high-temperature power generation medium passes through the third fluid circuit and performs work in the turbine structure to provide power generation power for the power generation structure.

[0032] Optionally, the turbine structure is at least one of a steam turbine, a gas turbine and a supercritical carbon dioxide turbine system.

[0033] Optionally, the thermoelectric conversion device further comprises:

[0034] Cooling structure;

[0035] The inlet of the heat exchange structure is in communication with the outlet of the third fluid circuit;

[0036] The cooling structure is arranged between the turbine structure and the heat exchange structure, on the third fluid circuit close to the inlet of the heat exchange structure;

[0037] Wherein, after the power-generating medium performs work in the turbine structure, the low-temperature power-generating medium is output to the cooling structure for cooling, and the cooled power-generating medium flows back to the heat exchange structure through the third fluid circuit.

[0038] Optionally, the heat storage device further comprises:

[0039] A low-temperature storage tank, the inlet of which is connected to the outlet of the second fluid circuit; the outlet of which is connected to the inlet of the first fluid circuit, is used to store the low-temperature heat transfer fluid after heat exchange with the heat exchange structure.

[0040] Optionally, the high temperature storage tank and the low temperature storage tank adopt at least one of the following heat storage forms:

[0041] Molten salt heat storage, phase change heat storage and solid heat storage.

[0042] The above technical solution of the present invention has at least the following beneficial effects:

[0043] In the above scheme, the power generation system includes: a heat absorption device, including multiple heat absorption surfaces, for absorbing light energy from sunlight and converting the light energy into heat energy; a photovoltaic panel, which is arranged around the heat absorption surface of the heat absorption device and is used to convert light energy into electrical energy; a light reflection mirror field, which is used to reflect the incident light of sunlight to the heat absorption surface and the photovoltaic panel; a heat storage device, which is connected to the heat absorption device and is used to store the heat energy absorbed by the heat absorption device; a thermoelectric conversion device, which is connected to the heat storage device and is used to convert the heat energy stored in the heat storage device into electrical energy; a voltage output structure, which is respectively connected to the thermoelectric conversion device and the photovoltaic panel, and is used to receive the electrical energy output by the photovoltaic panel and the thermoelectric conversion device, and output the electrical energy after converting it into a preset voltage value, combining photovoltaic and solar thermal power generation to form a coupled system of photovoltaic and solar thermal power generation, which greatly reduces the overflow loss of solar energy and increases the power generation. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 is one of the schematic diagrams of a power generation system according to an embodiment of the present invention;

[0045] Figure 2 This is a second schematic diagram of a power generation system according to an embodiment of the present invention.

[0046] Description of reference numerals:

[0047] 1-photovoltaic panel; 2-light reflector field; 3-heat absorber; 4-heat absorption tower; 5-first fluid loop; 6-high-temperature storage tank; 7-second fluid loop; 8-heat exchange structure; 9-third fluid loop; 10-turbine structure; 11-power generation structure; 12-cooling structure; 13-low-temperature storage tank. DETAILED DESCRIPTION

[0048] In order to make the technical problems, technical solutions and advantages to be solved by the present invention more clear, a detailed description will be given below with reference to the accompanying drawings and specific embodiments.

[0049] The embodiment of the present invention provides a power generation system to solve the problem of solar energy overflow loss in conventional solar thermal power stations in the prior art.

[0050] like Figure 1 to Figure 2 As shown, an embodiment of the present invention provides a power generation system, including:

[0051] A heat absorbing device, comprising a plurality of heat absorbing surfaces, for absorbing light energy of sunlight and converting the light energy into heat energy;

[0052] A photovoltaic cell panel 1 is arranged around the heat absorbing surface of the heat absorbing device and is used to convert light energy into electrical energy;

[0053] A light reflecting mirror field 2, used for reflecting incident sunlight to the heat absorbing surface and the photovoltaic panel 1;

[0054] A heat storage device, connected to the heat absorption device, for storing heat energy absorbed by the heat absorption device;

[0055] a thermoelectric conversion device, connected to the heat storage device, for converting the thermal energy stored in the heat storage device into electrical energy;

[0056] The voltage output structure is connected to the thermoelectric conversion device and the photovoltaic cell panel respectively, and is used to receive the electric energy output by the photovoltaic cell panel 1 and the thermoelectric conversion device, and convert the electric energy into a preset voltage value before outputting it.

[0057] In the embodiment of the present invention, the voltage output structure can be connected to a power grid, and the power of the power generation system can be output through the voltage output structure.

[0058] The embodiment of the present invention includes a heat absorption device, including multiple heat absorption surfaces, which are used to absorb light energy from sunlight and convert the light energy into heat energy; a photovoltaic panel 1, which is arranged around the heat absorption surface of the heat absorption device and is used to convert light energy into electrical energy; a light reflection mirror field 2, which is used to reflect incident sunlight to the heat absorption surface and the photovoltaic panel 1; a heat storage device, which is connected to the heat absorption device and is used to store the heat energy absorbed by the heat absorption device; a thermoelectric conversion device, which is connected to the heat storage device and is used to convert the heat energy stored in the heat storage device into electrical energy; a voltage output structure, which is respectively connected to the thermoelectric conversion device and the photovoltaic panel 1, and is used to receive the electrical energy output by the photovoltaic panel 1 and the thermoelectric conversion device, convert the electrical energy into a preset voltage value and then output it, combining photovoltaic and solar thermal power generation to form a coupled system of photovoltaic and solar thermal power generation, which greatly reduces the overflow loss of solar energy and increases the power generation.

[0059] It should be noted that the power generation system provided in the embodiment of the present invention utilizes the light reflector field 2 to achieve a secondary reflection effect, realizes the combined power generation of photovoltaic and solar thermal energy, and at the same time solves the overflow loss of conventional solar thermal power stations. The sunlight overflowing from the conventional solar thermal power station is irradiated on the photovoltaic panel 1, thereby reducing the overflow loss, improving the efficiency of the system, lowering the error requirements of the light reflector field 2, reducing the investment in reflectors for the photovoltaic panel 1, and increasing the power generation.

[0060] Optionally, the heat absorption device comprises:

[0061] Heat absorber 3 and heat absorption tower 4;

[0062] The heat absorber 3 is disposed on the heat absorption tower 4 . The heat absorber 3 includes a plurality of heat absorption surfaces. The photovoltaic cell panels 1 are disposed around the heat absorption surfaces of the heat absorber 3 .

[0063] In the embodiment of the present invention, Figure 2As shown, the absorber 3 is located at the top of the heat absorption tower 4, and the photovoltaic panels 1 are arranged around the heat absorption surface to receive incident sunlight with different deflection angles, convert light energy into electrical energy, and realize photovoltaic power generation.

[0064] It should be noted that the light that is not completely absorbed by the heat absorbing surface of the absorber 3 and overflows can support the photovoltaic panel 1 to generate electricity without causing losses, and can make the heat flux density of the heat absorbing surface more uniform, thereby extending the operating life of the absorber 3.

[0065] Optionally, the heat absorber 3 is a surface heat absorber or a cavity heat absorber.

[0066] It should be noted that if Figure 2 As shown, here, the heat absorber 3 includes four chamber heat absorbers.

[0067] Optionally, the photovoltaic cell panel 1 is a high-concentration photovoltaic cell panel.

[0068] In an embodiment of the present invention, the concentration ratio of the high-concentration photovoltaic panel is 200 to 1000.

[0069] It should be noted that, since the photoelectric conversion efficiency and output per unit area of ​​the high-concentration photovoltaic cell panels are higher, the use of the high-concentration photovoltaic cell panels can reduce the overflow loss of solar energy and increase the power generation.

[0070] Optionally, the light reflector field 2 comprises:

[0071] A plurality of heliostats are provided, wherein mirror surfaces of the plurality of heliostats are arranged around the heat absorbing device, and the mirror surfaces of the plurality of heliostats face the heat absorbing device.

[0072] It should be noted that the light reflection mirror field 2 is arranged around the heat absorption tower 4 to reflect the direct radiation of sunlight onto the heat absorption surface and the photovoltaic panel 1 through different deflection angles.

[0073] Optionally, the photovoltaic panel 1 is capable of rotating between a first position and a second position relative to the heat absorbing surface;

[0074] In the first position, the photovoltaic cell panel 1 and the heat absorbing surface of the heat absorbing device form a preset angle, and the light reflector field 2 can reflect the incident sunlight to the heat absorbing surface and the photovoltaic cell panel 1;

[0075] In the second position, the photovoltaic panel 1 covers the heat absorbing surface, and the light reflecting mirror field 2 can reflect the incident moonlight to the photovoltaic panel 1 .

[0076] It should be noted that, in practical applications, the working conditions of the light reflector field 2 in the power generation system are as follows:

[0077] The light reflector field 2 can be operated during the sunlight period, the photovoltaic panel 1 is in a first position relative to the heat absorbing surface at a preset angle, and the light reflector field 2 can reflect incident sunlight to the heat absorbing surface and the photovoltaic panel 1;

[0078] The light reflector field 2 can also operate in the moonlight to track the moonlight, wherein the photovoltaic panel 1 located below the heat absorbing surface is in the second position relative to the heat absorbing surface, covering the heat absorbing surface, and the light reflector field 2 can reflect the incident light of the moonlight to the photovoltaic panel 1, so as to realize the additional power generation function of the power generation system in the moonlight at night. At the same time, when the photovoltaic panel 1 is in the second position, the heat dissipation loss of the heat absorbing surface can be reduced, ensuring that the system does not dissipate heat at night or when shut down, thereby reducing the start-up and stop time and energy consumption of the system;

[0079] It should also be noted that when the light reflector field 2 is operated during moonlight hours, the photovoltaic panel 1 may also be in the first position relative to the heat absorbing surface.

[0080] Optionally, the heat storage device comprises:

[0081] A first fluid circuit 5 and a high temperature storage tank 6;

[0082] The first fluid circuit 5 is provided with a heat-conducting fluid, the outlet of the first fluid circuit 5 is connected to the inlet of the high-temperature storage tank 6, and at least part of the first fluid circuit 5 is provided in the heat absorption device;

[0083] The heat energy absorbed by the heat absorption device is transferred to the heat transfer fluid through the first fluid circuit 5 , and the high-temperature heat transfer fluid is stored in the high-temperature storage tank 6 .

[0084] It should be noted that after the heat absorption device absorbs the heat, the heat is transferred to the high-temperature draft 6 through the heat transfer fluid.

[0085] In the embodiment of the present invention, the heat transfer fluid may be water with a large specific heat capacity.

[0086] Optionally, the thermoelectric conversion device comprises:

[0087] A second fluid circuit 7, a heat exchange structure 8, a third fluid circuit 9, a turbine structure 10 and a power generation structure 11;

[0088] The inlet of the second fluid circuit 7 is in communication with the heat storage device, and at least part of the second fluid circuit 7 is disposed in the heat exchange structure 8; the second fluid circuit 7 is provided with a heat-conducting fluid for transferring the thermal energy stored in the heat storage device to the heat exchange structure 8;

[0089] The outlet of the heat exchange structure 8 is connected to the inlet of the third fluid circuit 9;

[0090] The turbine structure 10 is disposed on the third fluid circuit 9 near the outlet of the heat exchange structure 8;

[0091] The turbine structure 10 is connected to the power generation structure 11;

[0092] Among them, after the power generation medium in the heat exchange structure 8 exchanges heat with the heat transfer fluid, the high-temperature power generation medium passes through the third fluid circuit and performs work in the turbine structure 10 to provide power generation power for the power generation structure 11.

[0093] It should be noted that the inlet of the second fluid circuit 7 is connected to the outlet of the high-temperature storage tank 6. The heat-conducting fluid in the high-temperature storage tank 6 passes through the second fluid circuit 7 and enters the heat exchange structure 8 to transfer heat to the power-generating medium. The power-generating medium performs work in the turbine structure 10, driving the power-generating structure 11 to generate electricity. After the light energy is converted into heat energy, it is converted into mechanical energy, and finally the mechanical energy is converted into electrical energy, thereby forming solar thermal power generation.

[0094] In the embodiment of the present invention, the heat exchange structure 8 is an energy-saving device for realizing heat transfer between two or more fluids at different temperatures.

[0095] The power generation structure 11 is a generator.

[0096] Optionally, the turbine structure 10 is at least one of a steam turbine, a gas turbine and a supercritical carbon dioxide turbine system.

[0097] In the embodiment of the present invention, the turbine structure 10 is a steam turbine.

[0098] Optionally, the thermoelectric conversion device further comprises:

[0099] Cooling structure 12;

[0100] The inlet of the heat exchange structure 8 is connected to the outlet of the third fluid circuit 7;

[0101] The cooling structure 12 is disposed between the turbine structure 10 and the heat exchange structure 8, on the third fluid circuit close to the inlet of the heat exchange structure 8;

[0102] After the power-generating medium performs work in the turbine structure 10 , the low-temperature power-generating medium is output to the cooling structure 12 for cooling, and the cooled power-generating medium flows back to the heat exchange structure 8 through the third fluid circuit.

[0103] It should be noted that after doing work, the power-generating medium is cooled and condensed by the cooling structure 12, and then exchanges heat with the high-temperature heat transfer fluid through the heat exchange structure 8. The power-generating medium absorbs heat, thereby forming a closed circulation system, reducing energy loss and improving heat exchange efficiency.

[0104] Optionally, the heat storage device further comprises:

[0105] A low-temperature storage tank 13, the inlet of which is connected to the outlet of the second fluid circuit 7; the outlet of which is connected to the inlet of the first fluid circuit 5, is used to store the low-temperature heat transfer fluid after heat exchange through the heat exchange structure 8.

[0106] It should be noted that after the high-temperature heat transfer fluid passes through the heat exchange structure 8 and exchanges heat with the low-temperature power generation medium, the heat transfer fluid removes heat and flows into the low-temperature storage tank.

[0107] In the embodiment of the present invention, the low-temperature storage tank 13 is arranged below the heat absorption device.

[0108] Optionally, the high temperature storage tank 5 and the low temperature storage tank 13 adopt at least one of the following heat storage forms:

[0109] Molten salt heat storage, phase change heat storage and solid heat storage.

[0110] In the embodiment of the present invention, the low-temperature storage tank 13 adopts a molten salt heat storage form to provide a low-temperature heat transfer fluid for the first fluid circuit 5 .

[0111] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A power generation system, characterized in that: include: A heat absorbing device, comprising a plurality of heat absorbing surfaces, for absorbing light energy of sunlight and converting the light energy into heat energy; A photovoltaic panel is arranged around the heat absorbing surface of the heat absorbing device and is used to convert light energy into electrical energy; a field of light reflectors for reflecting incident sunlight to the heat absorbing surface and the photovoltaic panels; A heat storage device, connected to the heat absorption device, for storing heat energy absorbed by the heat absorption device; a thermoelectric conversion device, connected to the heat storage device, for converting the thermal energy stored in the heat storage device into electrical energy; A voltage output structure, connected to the thermoelectric conversion device and the photovoltaic cell panel, respectively, for receiving the electric energy output by the photovoltaic cell panel and the thermoelectric conversion device, converting the electric energy into a preset voltage value and then outputting it; The photovoltaic panel is capable of rotating between a first position and a second position relative to the heat absorbing surface; When the light reflector field is operated in sunlight, the photovoltaic cell panel is in a first position relative to the heat absorbing surface, and a preset angle is formed between the photovoltaic cell panel and the heat absorbing surface of the heat absorbing device to reduce the overflow loss of sunlight and increase the power generation. The light reflector field can reflect the incident sunlight to the heat absorbing surface and the photovoltaic cell panel; When the light reflector field is operated in the moonlight, the photovoltaic panel located below the heat absorbing surface is in the second position relative to the heat absorbing surface, and the photovoltaic panel covers the heat absorbing surface to reduce the heat dissipation loss of the heat absorbing surface, ensuring that the system does not dissipate heat at night or when shut down, thereby reducing the start-up and stop time of the system and energy consumption; The photovoltaic panels are high-concentration photovoltaic panels to reduce the overflow loss of sunlight and increase power generation; The heat absorption device comprises: Heat absorbers and heat absorption towers; The heat absorber is arranged on the heat absorption tower, and the heat absorber includes multiple heat absorption surfaces. The photovoltaic panel is arranged around the heat absorption surface of the heat absorber, and can receive incident sunlight with different deflection angles. The light that is not completely absorbed by the heat absorption surface of the heat absorber and overflows can support the photovoltaic panel to generate electricity without causing losses, and can make the heat flux density of the heat absorption surface uniform.

2. The power generation system according to claim 1, characterized in that: The heat absorber is a surface heat absorber or a cavity heat absorber.

3. The power generation system according to claim 1, characterized in that: The optical reflector field comprises: A plurality of heliostats are provided, wherein mirror surfaces of the plurality of heliostats are arranged around the heat absorbing device, and the mirror surfaces of the plurality of heliostats face the heat absorbing device.

4. The power generation system according to claim 1, characterized in that: The heat storage device comprises: A first fluid circuit and a high temperature storage tank; The first fluid circuit is provided with a heat-conducting fluid, the outlet of the first fluid circuit is connected to the inlet of the high-temperature storage tank, and at least a part of the first fluid circuit is provided in the heat absorption device; The heat energy absorbed by the heat absorption device is transferred to the heat transfer fluid through the first fluid circuit, and the high-temperature heat transfer fluid is stored in the high-temperature storage tank.

5. The power generation system according to claim 4, characterized in that: The thermoelectric conversion device comprises: A second fluid circuit, a heat exchange structure, a third fluid circuit, a turbine structure and a power generation structure; The inlet of the second fluid circuit is in communication with the heat storage device, and at least part of the second fluid circuit is disposed in the heat exchange structure; the second fluid circuit is provided with a heat-conducting fluid for transferring the thermal energy stored in the heat storage device to the heat exchange structure; The outlet of the heat exchange structure is connected to the inlet of the third fluid circuit; The turbine structure is arranged on the third fluid circuit near the outlet of the heat exchange structure; The turbine structure is connected to the power generation structure; Among them, after the power generation medium in the heat exchange structure exchanges heat with the heat transfer fluid, the high-temperature power generation medium passes through the third fluid circuit and performs work in the turbine structure to provide power generation power for the power generation structure.

6. The power generation system according to claim 5, characterized in that: The turbine structure is at least one of a steam turbine, a gas turbine and a supercritical carbon dioxide turbine system.

7. The power generation system according to claim 5, characterized in that: The thermoelectric conversion device further comprises: Cooling structure; The inlet of the heat exchange structure is in communication with the outlet of the third fluid circuit; The cooling structure is arranged between the turbine structure and the heat exchange structure, on the third fluid circuit close to the inlet of the heat exchange structure; Wherein, after the power-generating medium performs work in the turbine structure, the low-temperature power-generating medium is output to the cooling structure for cooling, and the cooled power-generating medium flows back to the heat exchange structure through the third fluid circuit.

8. The power generation system according to claim 5, characterized in that: The heat storage device also includes: A low-temperature storage tank, the inlet of which is connected to the outlet of the second fluid circuit; the outlet of which is connected to the inlet of the first fluid circuit, is used to store the low-temperature heat transfer fluid after heat exchange with the heat exchange structure.

9. The power generation system according to claim 8, characterized in that: The high temperature storage tank and the low temperature storage tank adopt at least one of the following heat storage forms: Molten salt heat storage, phase change heat storage and solid heat storage.

Images