Energy storage combined power generation system

Abstract

The application provides an energy storage combined power generation system, which comprises a gas turbine generator set, the gas turbine generator set is used for supplying power to a target load, and the combined energy storage power generation system further comprises: an energy storage assembly connected with the gas turbine generator set; a gas power generation loop connected with the gas turbine generator set; a temperature adjusting assembly, at least part of the temperature adjusting assembly is respectively attached to the energy storage assembly and the gas turbine generator set; and an auxiliary power generation assembly connected with the temperature adjusting assembly. The application solves the problem that the industrial container type energy storage in the prior art cannot work in a low temperature environment.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of lithium battery energy storage combined power supply, in particular to a combined energy storage power generation system. BACKGROUND

[0002] The storage of electric quantity generally has pumped storage, compressed air energy storage, flywheel energy storage and chemical energy storage. The excess electric quantity is stored according to the peak and valley period of power generation to be used in the peak of electric quantity. The lithium battery in the chemical energy storage is widely used in civil and industrial fields due to the characteristics of large energy density of the battery cell, high charge and discharge rate, good safety performance, stable technology and low maintenance cost.

[0003] The lithium battery cannot be discharged in a low temperature environment, has a poor discharge rate and a small number of charge and discharge times, and cannot work normally when the temperature is below 0 DEG C, and must rely on external heat supply to meet its own needs. The common box-type energy storage heating and cooling system generally has a liquid circulation or an air conditioner, and an external power supply is provided to make the compressor and the circulating pump work to achieve the purpose of heating and cooling. Some use a hybrid battery method to solve the problem, that is, most of the box-type energy storage uses ordinary lithium batteries and a small part uses low-temperature lithium batteries, and the low-temperature batteries are used to solve the problem of low-temperature resistance. When the temperature is above-45 DEG C, the low-temperature battery is discharged at a low rate to make the air conditioner work, and when the temperature reaches the normal temperature, the ordinary lithium battery starts to work. However, there is no good solution to the problem of how the box-type energy storage works when the temperature is below-45 DEG C and there is no external power supply. SUMMARY

[0004] The main purpose of the present application is to provide a combined energy storage power generation system to solve the problem that the industrial container-type energy storage in the prior art cannot work in a low temperature environment.

[0005] In order to achieve the above purpose, the present application provides a combined energy storage power generation system, which comprises a gas turbine generator set, the gas turbine generator set is used for supplying power to a target load, the combined energy storage power generation system further comprises: an energy storage assembly connected with the gas turbine generator set; a gas power generation loop connected with the gas turbine generator set; a temperature adjusting assembly, at least part of the temperature adjusting assembly is attached to the energy storage assembly and the gas turbine generator set respectively; and an auxiliary power generation assembly connected with the temperature adjusting assembly.

[0006] Further, the combined energy storage power generation system further comprises an expander, and the auxiliary power generation assembly comprises: a gas tank, an exhaust port of the gas tank is communicated with the expander, and the power gas in the gas tank is transported to the expander through the gas tank; and an auxiliary generator, the expander is connected with the auxiliary generator, the auxiliary generator is driven to rotate by the expander, and the auxiliary generator is connected with the temperature adjusting assembly.

[0007] Further, the combined energy storage power generation system further comprises a first heat exchanger, and the auxiliary power generation assembly further comprises a compressor set, an outlet port of the compressor set being communicated with the gas storage tank, and the first heat exchanger being communicated with the compressor set and the gas storage tank respectively.

[0008] Further, the first heat exchanger is provided with a first gas inlet, a first gas outlet, a second gas inlet and a second gas outlet, the first gas inlet being communicated with the compressor set, the first gas outlet being communicated with the inlet of the gas storage tank, the second gas inlet being communicated with the gas outlet of the gas storage tank, and the second gas outlet being communicated with the expander.

[0009] Further, the combined energy storage power generation system further comprises a gas storage component communicated with the gas inlet of the expander, and a buffer tank communicated with the gas outlet of the expander, the buffer tank being provided with a first gas outlet and a second gas outlet, and the first gas outlet being communicated with the gas power generation loop.

[0010] Further, the combined energy storage power generation system further comprises a gas boiler, the second gas outlet of the buffer tank being communicated with the gas boiler, and the gas boiler being connected with the energy storage assembly to heat the energy storage assembly through the gas boiler.

[0011] Further, the temperature adjusting assembly comprises a medium circulation pipeline abutting against the energy storage assembly, the medium circulation pipeline being arranged around the energy storage assembly, and the medium circulation pipeline being used for circulating a regulating medium.

[0012] Further, the temperature adjusting assembly further comprises a first circulation pipeline communicated with the medium circulation pipeline, at least a part of the first circulation pipeline abutting against the gas turbine generator set, and a second heat exchanger arranged on the first circulation pipeline and communicated with the first circulation pipeline.

[0013] Further, the temperature adjusting assembly further comprises a temperature adjusting component communicated with the medium circulation pipeline through a second circulation pipeline, the temperature adjusting component being used for adjusting the temperature of the regulating medium, and the auxiliary power generation assembly being connected with the temperature adjusting component.

[0014] Further, the combined energy storage power generation system further comprises a controller, and the energy storage assembly comprises a box body, at least a part of the temperature adjusting assembly abutting against the box body, a storage battery and a relay switch being arranged in the box body, the relay switch being connected with the storage battery, a temperature control switch being arranged in the box body, and the relay switch and the temperature control switch being connected with the controller respectively.

[0015] The combined energy storage power generation system according to the application comprises a gas turbine generator set, the gas turbine generator set is used for supplying power to a target load, wherein the combined energy storage power generation system further comprises an energy storage assembly, a gas power generation loop, a temperature adjusting assembly and an auxiliary power generation assembly, the energy storage assembly is connected with the gas turbine generator set; the gas power generation loop is connected with the gas turbine generator set, at least part of the temperature adjusting assembly is attached to the energy storage assembly and the gas turbine generator set respectively; and the auxiliary power generation assembly is connected with the temperature adjusting assembly. In this way, in actual use, when the ambient temperature is low and the energy storage assembly cannot provide power for the gas turbine generator set, the auxiliary power generation assembly is used for supplying power to the temperature adjusting assembly, the temperature adjusting assembly is used for heating the energy storage assembly, the energy storage assembly is used for supplying power for the gas turbine generator set, the gas turbine generator set is started normally, and then the gas power generation loop can be operated normally to supply power to the target load. In this way, even in a low-temperature environment, the energy storage assembly can provide power for the gas turbine generator set, the combined energy storage power generation system is stable, and the problem that the combined energy storage power generation system cannot operate normally in a low-temperature environment is solved. BRIEF DESCRIPTION OF DRAWINGS

[0016] The accompanying drawings, which form a part of the present application, are used to provide further understanding of the application, and are incorporated herein for explanatory purposes. The illustrative embodiments of the present application and their description serve the purpose of explanations and are not limiting on the present application. In the drawings:

[0017] Figure 1 A structure schematic diagram of an embodiment of the combined energy storage power generation system according to the application is shown; and

[0018] Figure 2 A control flowchart of the combined energy storage power generation system according to the application is shown.

[0019] In the above drawings, the following reference signs are used:

[0020] 100, gas turbine generator set; 110, target load; 120, expander; 130, first heat exchanger; 200, energy storage assembly; 210, box body; 300, gas power generation loop; 310, gas storage component; 311, control valve; 320, buffer tank; 330, pressure regulating valve; 400, temperature adjusting assembly; 410, medium circulation pipeline; 420, first circulation pipeline; 430, second heat exchanger; 440, temperature adjusting component; 450, second circulation pipeline; 460, third circulation pipeline; 470, fourth circulation pipeline; 500, auxiliary power generation assembly; 510, gas storage tank; 520, clutch; 530, auxiliary generator; 540, compressor set; 550, electric motor; 600, gas boiler; 700, controller; 800, lighting device. DETAILED DESCRIPTION

[0021] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0022] Please refer to Figure 1 and Figure 2 The present application provides a combined energy storage power generation system, comprising a gas turbine generator set 100, the gas turbine generator set 100 is used for supplying power to a target load 110, the combined energy storage power generation system further comprises: an energy storage assembly 200 connected with the gas turbine generator set 100; a gas power generation loop 300 connected with the gas turbine generator set 100; a temperature adjusting assembly 400, at least part of the temperature adjusting assembly 400 is respectively attached to the energy storage assembly 200 and the gas turbine generator set 100; an auxiliary power generation assembly 500 connected with the temperature adjusting assembly 400.

[0023] According to the combined energy storage power generation system provided by the present application, comprising a gas turbine generator set 100, the gas turbine generator set 100 is used for supplying power to a target load 110, wherein the combined energy storage power generation system further comprises an energy storage assembly 200, a gas power generation loop 300, a temperature adjusting assembly 400 and an auxiliary power generation assembly 500, the energy storage assembly 200 is connected with the gas turbine generator set 100; the gas power generation loop 300 is connected with the gas turbine generator set 100, at least part of the temperature adjusting assembly 400 is respectively attached to the energy storage assembly 200 and the gas turbine generator set 100; the auxiliary power generation assembly 500 is connected with the temperature adjusting assembly 400. In this way, in the actual use process, when the ambient temperature is low and the energy storage assembly 200 cannot provide power for the gas turbine generator set 100, the auxiliary power generation assembly 500 is used to supply power to the temperature adjusting assembly 400, the temperature adjusting assembly 400 is used to heat the energy storage assembly 200, the energy storage assembly 200 is used to supply energy for the gas turbine generator set 100, the gas turbine generator set 100 is started normally, and then the gas power generation loop 300 can be normally operated to supply power for the target load 110. In this way, even in a low temperature environment, the energy storage assembly 200 can provide power for the gas turbine generator set 100, ensure the stability of the combined energy storage power generation system, and solve the problem that the combined energy storage power generation system cannot normally operate in a low temperature environment.

[0024] Specifically, the combined energy storage power generation system further comprises an expander 120, and the auxiliary power generation assembly 500 comprises: a gas storage tank 510, an exhaust port of the gas storage tank 510 being communicated with the expander 120, and power gas in the gas storage tank 510 being delivered to the expander 120 through the gas storage tank 510; an auxiliary generator 530, the expander 120 being connected with the auxiliary generator 530, the auxiliary generator 530 being driven to rotate by the expander 120, and the auxiliary generator 530 being connected with the temperature adjusting assembly 400. Wherein, the air is stored in the gas storage tank 510, when the energy storage assembly 200 cannot be normally started due to low ambient temperature, the air in the gas storage tank 510 is released into the expander 120 to make the expander 120 work, so that the expander 120 drives the auxiliary generator 530 to start and supply power to the temperature adjusting assembly 400.

[0025] Further, the combined energy storage power generation system further comprises a first heat exchanger 130, and the auxiliary power generation assembly 500 further comprises: a compressor set 540, an air outlet port of the compressor set 540 being communicated with the gas storage tank 510, and the first heat exchanger 130 being communicated with the compressor set 540 and the gas storage tank 510 respectively. Wherein, the auxiliary power generation assembly 500 further comprises an electric motor 550, the electric motor 550 being drivingly connected with the compressor set 540, the compressor set 540 being driven by the electric motor 550 to compress air and output the air to the gas storage tank 510 for storage, and the air in the gas storage tank 510 being released into the expander 120 when the system is in an emergency state.

[0026] In the process of specific implementation, the first heat exchanger 130 is provided with a first air inlet, a first air outlet, a second air inlet and a second air outlet; the first air inlet is communicated with the compressor set 540, the first air outlet is communicated with an inlet of the gas storage tank 510, the second air inlet is communicated with an exhaust port of the gas storage tank 510, and the second air outlet is communicated with the expander 120. In this way, in the process of delivering the air in the compressor set 540 to the gas storage tank 510, the air is heat-exchanged with the first heat exchanger 130 to be heated or cooled.

[0027] In the present application, the combined energy storage power generation system further comprises: a gas storage component 310, communicated with an air inlet of the expander 120; a buffer tank 320, communicated with a gas outlet of the expander 120, the buffer tank 320 being provided with a first exhaust port and a second exhaust port, and the first exhaust port being communicated with the gas power generation loop 300. Wherein, the gas storage component 310 is a CNG tank truck, the gas storage component 310 is directly connected with the expander 120 without needing to be provided with a pressure reducing component, thereby reducing the structural complexity of the system, when the gas in the gas storage component 310 is delivered to the expander 120, the air therein is discharged from an air exhaust port of the expander 120, and the gas therein is discharged from a gas outlet of the expander 120 to the buffer tank 320.

[0028] Further, in order to heat the energy storage assembly 200 during normal operation, the combined energy storage power generation system further comprises a gas boiler 600, the second exhaust port of the buffer tank 320 is in communication with the gas boiler 600, the gas boiler 600 is connected with the energy storage assembly 200, and the energy storage assembly 200 is heated by the gas boiler 600. A part of the natural gas stored in the buffer tank 320 is delivered to the gas turbine generator set 100 through the gas power generation circuit 300 to burn and supply power to the target load 110, and another part is delivered to the gas boiler 600 to burn and heat the energy storage assembly 200. Preferably, the gas boiler 600 is connected with the energy storage assembly 200 through a third circulating pipeline 460, at least a part of the third circulating pipeline 460 is attached to the energy storage assembly 200, the third circulating pipeline 460 has a regulating medium therein, the gas boiler 600 heats the regulating medium in the third circulating pipeline 460, so that the regulating medium exchanges heat with the energy storage assembly 200 to heat the energy storage assembly 200.

[0029] In the embodiment provided by the application, the exhaust port of the gas storage tank 510 is in communication with the second gas inlet of the first heat exchanger 130 through a first connecting pipeline, the gas storage component 310 is in communication with the first connecting pipeline through a second connecting pipeline, the second connecting pipeline is provided with a control valve 311, the control valve 311 is an interlocking valve, when the control valve 311 is opened, the exhaust port of the gas storage tank 510 is closed, and the gas in the gas storage component 310 is delivered into the expander 120. The CNG tank truck (gas storage component 310) is connected with the first heat exchanger 130 through the control valve and the gas storage tank 510, and the gas with pressure drives the expander 120 to generate power. The gas storage tank 510 and the CNG tank truck (gas storage component 310) form an interlocking structure through the energy management controller, and cannot work at the same time. The air after decompression of the expander 120 is discharged outward, and the CNG gas (gas) is stored through the buffer tank.

[0030] In specific implementation, the temperature adjusting assembly 400 comprises a medium circulating pipeline 410, which is attached to the energy storage assembly 200, the medium circulating pipeline 410 is arranged around the energy storage assembly 200, and the medium circulating pipeline 410 is used to circulate the regulating medium therein. The regulating medium is preferably ethylene glycol, which has the effects of lubrication and anti-freezing.

[0031] The temperature adjusting assembly 400 further comprises a first circulation pipeline 420 in communication with the medium circulation pipeline 410, at least a part of the first circulation pipeline 420 being attached to the gas turbine generator set 100; and a second heat exchanger 430 arranged on the first circulation pipeline 420 and in communication with the first circulation pipeline 420. The second heat exchanger 430 exchanges heat with the adjusting medium in the first circulation pipeline 420 to adjust the temperature of the adjusting medium. The temperature adjusting assembly 400 further comprises a temperature adjusting component 440 in communication with the medium circulation pipeline 410 through a second circulation pipeline 450, the temperature of the adjusting medium being adjusted by the temperature adjusting component 440, and the auxiliary generator 530 being connected to the temperature adjusting component 440. Preferably, the temperature adjusting component 440 is an electric heater, and the temperature adjusting component 440 is powered by the auxiliary generator 530.

[0032] Specifically, the third circulation pipeline 460 is in communication with the medium circulation pipeline 410, and the temperature adjusting assembly 400 further comprises a fourth circulation pipeline 470 in communication with the medium circulation pipeline 410, at least a part of the fourth circulation pipeline 470 being attached to the electric motor 550 to cool or heat the electric motor 550.

[0033] In the embodiments provided in the present application, the combined energy storage power generation system further comprises a controller 700, and the energy storage assembly 200 comprises a box body 210, at least a part of the temperature adjusting assembly 400 being attached to the box body 210, the box body 210 being provided with a storage battery and a relay switch, the relay switch being connected to the storage battery; a temperature control switch being arranged in the box body 210; and the relay switch and the temperature control switch being connected to the controller 700 respectively. The temperature control switch inside the storage battery feeds back the temperature to the controller in real time. When temperature abnormality or fire occurs, the relay switch is completely disconnected in the road transportation map. The purpose of not expanding the fire accident and facilitating road transportation is achieved. The controller 700 is an energy management controller.

[0034] The combined energy storage power generation system further comprises a lighting device 800, the lighting device 800 being connected to the energy storage assembly 200 and the auxiliary generator 530 respectively, and the auxiliary generator 530 supplies power to the lighting device 800 to start the lighting device 800 to provide light in an emergency state.

[0035] In actual use, the auxiliary power generation assembly 500 further comprises a clutch 520, the controller 700 is electrically connected to the clutch 520, the clutch 520 is connected to the expander 120 and the auxiliary generator 530 respectively, the clutch 520 is controlled to be in an open state when the system is normally operated, at this time the expander 120 does not work on the clutch 520, and the clutch 520 is controlled to be in a locked state when the system is in an emergency state, at this time the expander 120 works on the clutch 520.

[0036] The gas power generation circuit 300 is further provided with a pressure regulating valve 330 between the buffer tank 320 and the gas turbine generator set 100. The buffer tank 320 is connected with the gas boiler 600 and the pressure regulating valve 330, and the pressure regulating valve 330 is connected with the gas turbine generator set 100. The CNG gas (gas) in the buffer tank 320 is delivered to the gas turbine generator set 100 at a constant pressure by the pressure regulating valve 330, and then mixed with air to burn and generate power for the user load. The excess CNG gas (gas) generates heat by the combustion furnace to start the energy storage lithium battery (energy storage assembly 200) in a low temperature environment.

[0037] Specifically, the operator understands the running state and parameter condition of each device on site through the energy management system, and the outdoor temperature is lower than 0℃. The electric valve is opened, the CNG gas pushes the expander to move the clutch to open, the emergency generator does not work, and the CNG gas pressure is maintained at about 2Mpa after pressure reduction. The CNG gas is heated by the gas boiler to circulate the medium ethylene glycol, when the temperature reaches 25℃-30℃, the box-type energy storage lithium battery starts to work to provide black start power for the gas turbine generator set, the auxiliary system starts to work, the gas turbine generator set ignites, the gas is delivered to the gas turbine generator set 100 at a constant gas pressure of 1.2Mpa by the pressure regulating valve 330, and then mixed with air to burn and generate power, the energy management controller controls the energy storage assembly 200 to achieve the effect of peak clipping and valley filling according to the size of the target load 110. The remaining energy is absorbed by the motor to drive the compressor set 540 to work, and the compressed air is stored in the gas storage tank for standby start in the next time.

[0038] The gas turbine generator set 100 and the motor 550 generate heat during the running process, which is recycled through the medium circulation pipeline 410 to heat the box-type energy storage (energy storage assembly 200), and when the temperature reaches a certain temperature, the energy management controller stops the gas boiler 600 and the temperature adjusting part 440 according to the set temperature. When the temperature of the gas generator rises greater than 75℃, the temperature cannot be reduced simply by the second heat exchanger 430. The energy management controller starts the temperature adjusting part 440 through the temperature sensor on the medium circulation pipeline to gasify the adjusting medium to dissipate heat and achieve the purpose of cooling, so as to ensure that the gas turbine generator set 100 runs at the maximum power output.

[0039] When the CNG tank truck (gas storage part 310) or the gas turbine generator set 100 fails to run, the energy management controller issues an instruction, the compressed air of the gas storage tank 510 is released to drive the expander 120 to work, the clutch locks the emergency generator to start generating power, ensures the operation of the important load of the user and opens the emergency lighting device on site, and maximizes the continuous output stability of the power system.

[0040] In the present application, the CNG tank truck (gas storage component 310) itself gas with 12-20Mpa, through the first heat exchanger 130 to drive the expander 120 auxiliary generator 530 work to issue power energy storage air conditioning power supply and emergency power. Realize the energy storage lithium battery (energy storage components 200) in the extremely low temperature environment, avoid emergency generator by diesel engine driven atmospheric pollution. Energy storage lithium battery (energy storage components 200) for low temperature high energy storage battery. CNG gas tank truck (gas storage component 310) directly on the expander, without using pressure reducing equipment, reduces the complexity of the equipment, improves the transmission efficiency of the equipment. In the gas turbine generator set 100 operation motor 550 drive compressor set 540 compressed air energy storage, without CNG gas tank truck (gas storage component 310) when the energy storage in low temperature environment to provide power. Both form a redundant structure, improve the stability of the equipment. Lithium battery in the transport link, disconnect the combination of lithium batteries between the DC contactor cut off the current loop to ensure safety, but also reduce the process of manual disassembly and installation of soft wire or copper, improve the work efficiency. Motor 550 and gas turbine generator set 100 and energy storage battery (gas storage component 310), gas boiler heating cycle pipeline (third cycle pipeline 460) connection together form the waste heat recovery in the use, reduce the cost.

[0041] From the above description, it can be seen that the above-mentioned embodiments of the present application achieve the following technical effects:

[0042] According to the application, the combined energy storage power generation system comprises a gas turbine generator set 100 for supplying power to a target load 110, wherein the combined energy storage power generation system further comprises an energy storage assembly 200, a gas power generation loop 300, a temperature adjusting assembly 400 and an auxiliary power generation assembly 500, the energy storage assembly 200 is connected with the gas turbine generator set 100; the gas power generation loop 300 is connected with the gas turbine generator set 100, at least part of the temperature adjusting assembly 400 is attached to the energy storage assembly 200 and the gas turbine generator set 100 respectively; and the auxiliary power generation assembly 500 is connected with the temperature adjusting assembly 400. In actual use, when the ambient temperature is low and the energy storage assembly 200 cannot provide power for the gas turbine generator set 100, the auxiliary power generation assembly 500 is used to supply power to the temperature adjusting assembly 400, the temperature adjusting assembly 400 is used to heat the energy storage assembly 200, the energy storage assembly 200 is used to supply power for the gas turbine generator set 100, the gas turbine generator set 100 is started normally, and the gas power generation loop 300 can operate normally to supply power for the target load 110. Thus, even in a low-temperature environment, the energy storage assembly 200 can provide power for the gas turbine generator set 100, the combined energy storage power generation system is stable, and the problem that the combined energy storage power generation system cannot operate normally in a low-temperature environment is solved.

[0043] The preferred embodiments of the application have been described above with the preferred embodiments of the application. However, for those skilled in the art, the application can have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the application shall be included in the protection scope of the application.

Claims

1. A combined energy storage and power generation system, comprising a gas turbine generator set (100) for supplying power to a target load (110), characterized in that, The combined energy storage and power generation system also includes: An energy storage component (200) is connected to the gas turbine generator set (100); A gas-fired power generation circuit (300) is connected to the gas turbine generator set (100); Temperature regulation assembly (400), at least a portion of which is attached to the energy storage assembly (200) and the gas turbine generator set (100), respectively; An auxiliary power generation component (500) is connected to the temperature regulation component (400); The combined energy storage and power generation system also includes an expander (120), and the auxiliary power generation component (500) includes: An air storage tank (510) is provided, the exhaust port of which is connected to the expander (120). The power gas in the air storage tank (510) is transported to the expander (120) through the air storage tank (510). An auxiliary generator (530) is provided, and the expander (120) is connected to the auxiliary generator (530). The expander (120) drives the auxiliary generator (530) to rotate. The auxiliary generator (530) is connected to the temperature regulating component (400). The temperature regulation component (400) includes: a medium circulation pipeline (410) which is attached to the energy storage component (200), the medium circulation pipeline (410) is arranged around the energy storage component (200), and the medium circulation pipeline (410) is used for circulating the regulation medium; The temperature regulating assembly (400) further includes: a first circulation pipeline (420) connected to the medium circulation pipeline (410), at least a portion of the first circulation pipeline (420) being in contact with the gas turbine generator set (100); and a second heat exchanger (430) disposed on the first circulation pipeline (420) and connected to the first circulation pipeline (420). The temperature regulation component (400) further includes: a temperature regulating component (440), which is connected to the medium circulation pipeline (410) through a second circulation pipeline (450), and the temperature of the regulating medium is regulated by the temperature regulating component (440). The auxiliary power generation component (500) is connected to the temperature regulating component (440). The combined energy storage and power generation system also includes a controller (700), and the energy storage component (200) includes: a housing (210), at least a portion of the temperature regulation component (400) is attached to the housing (210), and the housing (210) is provided with a battery and a relay switch, the relay switch being connected to the battery.

2. The combined energy storage and power generation system according to claim 1, characterized in that, The combined energy storage and power generation system also includes a first heat exchanger (130), and the auxiliary power generation component (500) also includes: The compressor unit (540) has an outlet port connected to the gas storage tank (510), and the first heat exchanger (130) is connected to both the compressor unit (540) and the gas storage tank (510).

3. The combined energy storage and power generation system according to claim 2, characterized in that, The first heat exchanger (130) is provided with a first air inlet, a first air outlet, a second air inlet, and a second air outlet; The first air inlet is connected to the compressor unit (540), the first air outlet is connected to the inlet of the air storage tank (510), the second air inlet is connected to the exhaust port of the air storage tank (510), and the second air outlet is connected to the expander (120).

4. The combined energy storage and power generation system according to claim 1, characterized in that, The combined energy storage and power generation system also includes: The gas storage component (310) is connected to the air inlet of the expander (120); The buffer tank (320) is connected to the gas outlet of the expander (120). The buffer tank (320) is provided with a first exhaust port and a second exhaust port. The first exhaust port is connected to the gas power generation circuit (300).

5. The combined energy storage and power generation system according to claim 4, characterized in that, The combined energy storage and power generation system also includes: A gas boiler (600) is provided, and the second exhaust port of the buffer tank (320) is connected to the gas boiler (600). The gas boiler (600) is connected to the energy storage component (200), and the energy storage component (200) is heated by the gas boiler (600).

6. The combined energy storage and power generation system according to claim 1, characterized in that, The energy storage component (200) includes: A temperature control switch is installed inside the enclosure (210); The relay switch and the temperature control switch are respectively connected to the controller (700).

Images