Energy supply system

Abstract

The invention provides an energy supply system. The energy supply system comprises: a fuel preparation device comprising a liquid fuel preparation device and / or a hydrogen fuel preparation device; the power supply equipment comprises a photovoltaic power generation device and an energy storage device, the photovoltaic power generation device is connected with the energy storage device so as to charge the energy storage device, and the power supply equipment is connected with the electric equipment and the fuel preparation equipment so as to supply power to the electric equipment and the fuel preparation equipment; the energy filling equipment is connected with the power supply equipment and the fuel preparation equipment, the fuel preparation equipment is used for supplying fuel to the energy filling equipment, and the power supply equipment is used for supplying electric energy to the energy filling equipment; and the emergency power generation equipment is connected with the energy filling equipment and the electric equipment, and the emergency power generation equipment is used for supplying power to the energy filling equipment and the electric equipment. According to the invention, the problem that an energy supply station in the prior art cannot be applied to a resource-deficient region is effectively solved.

Description

Technical Field

[0001] The present invention relates to the field of new energy technology, and in particular to an energy supply system. Background Art

[0002] At present, with the continuous development of new energy technologies and the gradual improvement of green environmental protection requirements, some energy supply stations (such as gas stations) have been upgraded to new energy supply stations that can supply various forms of energy (such as refueling, refueling, and charging). The energy acquisition form of the new energy supply stations has also been upgraded based on the traditional form (such as obtaining electricity from the power grid and using tank trucks and gas trucks for regular replenishment). For example, photovoltaic power generation and other modes will be used for auxiliary replenishment to achieve the concept of green and environmental protection.

[0003] With existing technologies, some deserts, Gobi deserts, and wasteland areas far away from cities are facing exploration and development operations, but lack infrastructure for supplementary energy such as charging stations.

[0004] However, the existing new energy supply stations are not actually suitable for deserts, Gobi and wasteland areas far away from cities. This is mainly because although the new energy supply stations can use photovoltaic power generation to supplement electricity, photovoltaic power generation is greatly affected by the weather and the power generation rate is limited. In fact, the traditional new energy supply stations mainly rely on power grid transmission, but whether it is laying power grids in deserts, Gobi and wasteland areas, or laying a large number of photovoltaic power generation modules to increase power generation, they all face the problem of high costs. Summary of the Invention

[0005] The main purpose of the present invention is to provide an energy supply system to solve the problem that energy supply stations in the prior art cannot be used in resource-scarce areas.

[0006] In order to achieve the above-mentioned purpose, according to one aspect of the present invention, there is provided an energy supply system, comprising: fuel production equipment, including a liquid fuel production device and / or a hydrogen fuel production device; power supply equipment, including a photovoltaic power generation device and an energy storage device, the photovoltaic power generation device is connected to the energy storage device to charge the energy storage device, and the power supply equipment is connected to both the power-consuming equipment and the fuel production equipment to supply power to the power-consuming equipment and the fuel production equipment; energy filling equipment, connected to both the power supply equipment and the fuel production equipment, the fuel production equipment is used to supply fuel to the energy filling equipment, and the power supply equipment is used to supply electrical energy to the energy filling equipment; emergency power generation equipment, connected to both the energy filling equipment and the power-consuming equipment, the emergency power generation equipment is used to supply power to the energy filling equipment and the power-consuming equipment.

[0007] Furthermore, the emergency power generation equipment is also connected to the fuel production equipment, and the emergency power generation equipment generates electricity using the fuel produced by the fuel production equipment.

[0008] Furthermore, the fuel production equipment includes a hydrogen fuel production device, which produces hydrogen fuel based on an electrolysis reaction.

[0009] Furthermore, the fuel production equipment also includes a methanol production device, which includes: a carbon dioxide capture device for capturing carbon dioxide from the air; a synthesis device connected to both the hydrogen fuel production device and the carbon dioxide capture device, and the synthesis device is used to synthesize hydrogen fuel and carbon dioxide into liquid hydrocarbon fuel.

[0010] Furthermore, the carbon dioxide capture device captures carbon dioxide from the air based on a chemical adsorption method.

[0011] Furthermore, the energy filling equipment includes a charging pile, a hydrogen fuel filling device and a liquid fuel filling device.

[0012] Furthermore, the power supply device has a first working mode. When the power supply device is in the first working mode, the photovoltaic power generation device charges the energy storage device, the photovoltaic power generation device supplies power to the power-consuming equipment and the hydrogen fuel production device, and the hydrogen fuel production device produces hydrogen fuel.

[0013] Furthermore, the power supply device also has a second working mode. When the power supply device is in the second working mode, the energy storage device supplies power to the power-consuming device and the liquid fuel production device, and the liquid fuel production device produces liquid hydrocarbon fuel.

[0014] Furthermore, the energy supply system also includes: a detection device for detecting the light intensity of the environment in which the energy supply system is located; a control module, connected to the detection device, and the control module switches the power supply equipment to the first working mode or the second working mode according to the detection value of the detection device; wherein, when the detection value of the detection device is less than or equal to the first preset value, the control module switches the power supply equipment to the second working mode; when the detection value of the detection device is greater than the second preset value, the control module switches the power supply equipment to the first working mode.

[0015] Furthermore, the control module is also connected to the emergency power generation equipment. When the remaining power of the energy storage device is less than or equal to a second preset value, the control module controls the emergency power generation equipment to start to supply power to the energy filling equipment and power-consuming equipment.

[0016] Applying the technical solution of the present invention, the fuel preparation equipment of the energy supply system includes a liquid fuel preparation device and / or a hydrogen fuel preparation device, the power supply equipment includes a photovoltaic power generation device and an energy storage device, the photovoltaic power generation device is connected to the energy storage device to charge the energy storage device, the power supply equipment is connected to the power-consuming equipment and the fuel preparation equipment to supply power to the power-consuming equipment and the fuel preparation equipment, the energy filling equipment is connected to the power supply equipment and the fuel preparation equipment, the fuel preparation equipment is used to supply fuel to the energy filling equipment, the power supply equipment is used to supply electric energy to the energy filling equipment, and the emergency power generation equipment is connected to the energy filling equipment and the power-consuming equipment to supply power to the energy filling equipment and the power-consuming equipment. In this way, the energy supply system in this application first realizes the self-sufficient preparation of electric energy by setting up a photovoltaic power generation device, and supplies power to personnel (power-consuming equipment) and fuel preparation equipment through the power supply equipment, then while maintaining the daily operation of the energy supply system, it also realizes the self-sufficient preparation of fuel, and accordingly, the energy filling equipment can realize the filling function of electric energy and fuel. At the same time, the energy storage device can collect and store excess electricity. When facing the energy replenishment process of exploration personnel, if the storage capacity of the energy storage device is insufficient and the power generation power of the photovoltaic power generation module cannot meet the corresponding demand, the emergency power generation device can be used for additional power generation and replenishment to ensure that the energy supply system can meet the energy supply needs of exploration personnel, avoid the laying of power grids, and thus solve the problem that energy supply stations in existing technologies cannot be used in resource-scarce areas. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings, which constitute part of this application, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an undue limitation of the present invention. In the accompanying drawings:

[0018] Figure 1 A schematic diagram of the overall layout of an embodiment of an energy supply system according to the present invention is shown.

[0019] The above drawings include the following reference numerals:

[0020] 1. Electrical equipment;

[0021] 10. Fuel production equipment; 11. Liquid fuel production device; 111. Carbon dioxide capture device; 112. Synthesis device; 12. Hydrogen fuel production device; 20. Power supply equipment; 21. Photovoltaic power generation device; 22. Energy storage device; 30. Energy filling equipment; 31. Charging pile; 32. Hydrogen fuel filling device; 33. Liquid fuel filling device; 40. Emergency power generation equipment; 50. Control module. DETAILED DESCRIPTION

[0022] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0023] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0024] In the present invention, unless otherwise specified, directional words such as "up" and "down" are generally used with respect to the directions shown in the drawings, or with respect to the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "left" and "right" are generally used with respect to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above directional words are not used to limit the present invention.

[0025] In order to solve the problem that energy supply stations in the prior art cannot be used in resource-scarce areas, the present application provides an energy supply system.

[0026] like Figure 1 As shown, the energy supply system includes a fuel production device 10, a power supply device 20, an energy filling device 30, and an emergency power generation device 40. The fuel production device 10 includes a liquid fuel production device 11 and / or a hydrogen fuel production device 12. The power supply device 20 includes a photovoltaic power generation device 21 and an energy storage device 22. The photovoltaic power generation device 21 is connected to the energy storage device 22 to charge the energy storage device 22. The power supply device 20 is connected to both the power consumption device 1 and the fuel production device 10 to supply power to the power consumption device 1 and the fuel production device 10. The energy filling device 30 is connected to both the power supply device 20 and the fuel production device 10. The fuel production device 10 is used to supply fuel to the energy filling device 30, and the power supply device 20 is used to supply electrical energy to the energy filling device 30. The emergency power generation device 40 is connected to both the energy filling device 30 and the power consumption device 1. The emergency power generation device 40 is used to supply power to the energy filling device 30 and the power consumption device 1.

[0027] Applying the technical solution of this embodiment, the fuel production equipment 10 of the energy supply system includes a liquid fuel production device 11 and / or a hydrogen fuel production device 12, the power supply equipment 20 includes a photovoltaic power generation device 21 and an energy storage device 22, the photovoltaic power generation device 21 is connected to the energy storage device 22 to charge the energy storage device 22, the power supply equipment 20 is connected to both the power-consuming equipment 1 and the fuel production equipment 10 to supply power to the power-consuming equipment 1 and the fuel production equipment 10, the energy filling equipment 30 is connected to both the power supply equipment 20 and the fuel production equipment 10, the fuel production equipment 10 is used to supply fuel to the energy filling equipment 30, the power supply equipment 20 is used to supply electric energy to the energy filling equipment 30, and the emergency power generation equipment 40 is connected to the energy filling equipment 30 and the power-consuming equipment 1 to supply power to the energy filling equipment 30 and the power-consuming equipment 1. In this way, the energy supply system in this embodiment first realizes self-sufficiency in the preparation of electric energy by setting up a photovoltaic power generation device 21, and then uses the power supply device 20 to supply electricity to personnel (electrical equipment) and the fuel production equipment 10. Thus, while maintaining the daily operation of the energy supply system, it also realizes self-sufficiency in the preparation of fuel. Accordingly, the energy filling device 30 can realize the filling function of electric energy and fuel. At the same time, the energy storage device 22 can store excess electricity. In the process of energy replenishment for exploration personnel, if the energy storage device 22 has insufficient power and the power generation power of the photovoltaic power generation device 21 cannot meet the corresponding demand, the emergency power generation device 40 can be used to generate additional power and replenish it, ensuring that the energy supply system can meet the energy replenishment needs of exploration personnel, avoiding the laying of power grids, and thus solving the problem that energy supply stations in the prior art cannot be applied to resource-scarce areas.

[0028] In this embodiment, the electrical equipment is mainly the daily electrical equipment used by people in the energy supply system.

[0029] In this embodiment, the emergency power generation device 40 is also connected to the fuel production device 10, and the emergency power generation device 40 generates electricity using the fuel produced by the fuel production device 10. In this way, the above arrangement can further achieve complete self-sufficiency and independent operation of the energy supply system.

[0030] In this embodiment, the photovoltaic power generation device 21 is composed of multiple groups of high-efficiency single-crystal silicon photovoltaic panels, and the tilt angle thereof can be adjusted to adapt to the angle of light.

[0031] Specifically, the emergency power generation equipment 40 is a combustion power generation equipment, which can use the fuel produced by the fuel production equipment 10 to perform combustion power generation.

[0032] Specifically, the energy supply system in this embodiment fully considers the periodic characteristics of fuel supply in resource-scarce areas, that is, the energy supply behavior of development, exploration and other work teams in resource-scarce areas often has periodic characteristics, and it takes a long time to go to the energy supply system to replenish energy, and the single energy supply volume is large. Therefore, this embodiment is additionally provided with an emergency power generation equipment 40 that can use the fuel produced by the fuel production equipment 10 to generate electricity. That is, for the large amount of fuel produced during the interval time, the staff can collect and store it (using professional storage devices or simple storage barrels) to provide it to the emergency power generation equipment 40 for power generation, thereby realizing the complete self-sufficiency and independent operation of the energy supply system.

[0033] It should be noted that the configuration of the emergency power generation equipment 40 is not limited thereto, and a diesel generator may also be additionally configured to generate electricity using the carried diesel fuel.

[0034] In this embodiment, the fuel production equipment 10 includes a hydrogen fuel production device 12 , which produces hydrogen fuel based on an electrolysis reaction.

[0035] In this embodiment, the hydrogen fuel is mainly hydrogen gas, and accordingly, the hydrogen fuel production device 12 is a water electrolysis device.

[0036] It should be noted that the water electrolysis device is a relatively mature existing device, and its specific structure will not be described in detail here.

[0037] In this embodiment, the fuel production equipment 10 also includes a methanol production device, which includes a carbon dioxide capture device 111 and a synthesis device 112. The carbon dioxide capture device 111 is used to capture carbon dioxide from the air. The synthesis device 112 is connected to the hydrogen fuel production device 12 and the carbon dioxide capture device 111. The synthesis device 112 is used to synthesize hydrogen fuel and carbon dioxide into liquid hydrocarbon fuel. In this way, the above-mentioned arrangement can not only realize the automated capture of carbon dioxide and further synthesize liquid hydrocarbon fuel (methanol), but also realize a ring carbon cycle (i.e., using carbon dioxide captured from the air and hydrogen to synthesize fuel to achieve carbon emission reduction and resource regeneration), thereby realizing a "zero-carbon park".

[0038] In this embodiment, the carbon dioxide capture device 111 captures carbon dioxide from the air based on a chemical adsorption method.

[0039] Specifically, the carbon dioxide capture device 111 captures carbon dioxide from the air through an amine liquid absorption method, so that the purity of the carbon dioxide is increased to above 95%, thereby facilitating subsequent synthesis with hydrogen.

[0040] Specifically, the synthesis device 112 uses hydrogen and carbon dioxide gases to synthesize green methanol based on a catalytic reaction (the catalyst is Cu / ZnO / Al2O3), and can also prepare other liquid hydrocarbon fuels based on the Fischer-Tropsch reaction.

[0041] It should be noted that the carbon dioxide capture device 111 and the synthesis device 112 are both relatively mature existing devices, and their specific structures are not described here in detail.

[0042] In this embodiment, the emergency power generation equipment 40 is a methanol combustion generator, which is a relatively mature existing device and its specific structure will not be described in detail here.

[0043] In this embodiment, the energy filling equipment 30 includes a charging pile 31, a hydrogen fuel filling device 32 and a liquid fuel filling device 33, so as to realize the synchronous replenishment of electric energy, hydrogen fuel and methanol fuel.

[0044] In this embodiment, the power supply device 20 has a first working mode. When the power supply device 20 is in the first working mode, the photovoltaic power generation device 21 charges the energy storage device 22, and the photovoltaic power generation device 21 supplies power to the power-consuming device 1 and the hydrogen fuel production device 12, and the hydrogen fuel production device 12 produces hydrogen fuel.

[0045] In this embodiment, the power supply device 20 also has a second working mode. When the power supply device 20 is in the second working mode, the energy storage device 22 supplies power to the power-consuming device 1 and the liquid fuel production device 11, and the liquid fuel production device 11 produces liquid hydrocarbon fuel.

[0046] In this embodiment, the energy replenishment system further includes a detection device and a control module 50. The detection device is configured to detect the light intensity in the environment in which the energy replenishment system is located. The control module 50 is connected to the detection device and switches the power supply device 20 to either the first operating mode or the second operating mode based on the detection value of the detection device. Specifically, if the detection value of the detection device is less than or equal to a first preset value, the control module 50 switches the power supply device 20 to the second operating mode; if the detection value of the detection device is greater than a second preset value, the control module 50 switches the power supply device 20 to the first operating mode.

[0047] Specifically, in this embodiment, the light intensity (i.e., weather conditions, such as nighttime with low light intensity, rainy days, and sunny days with high light intensity) is actually detected by a detection device, so that the automatic working mode switching of the power supply equipment 20 is realized through the control module 50, and the actual working status of the liquid fuel production device 11, the hydrogen fuel production device 12, the photovoltaic power generation device 21 and the energy storage device 22 are adjusted in time, thereby ensuring that the production amount of energy (electricity, fuel) can be maximized.

[0048] Specifically, when the light intensity is high, the photovoltaic power generation device 21 can generate electricity stably, and the hydrogen fuel production device 12 can stably produce hydrogen fuel at this time to provide sufficient fuel for subsequent methanol production, and the excess electricity can be stored by the energy storage device 22, on the one hand, to provide sufficient electricity for subsequent energy replenishment; on the other hand, when the light intensity is low, the energy storage device 22 also provides electricity to the liquid fuel production device 11, so as to use the hydrogen fuel (hydrogen gas) prepared by the hydrogen fuel production device 12 and the carbon dioxide gas captured in the air to prepare methanol fuel.

[0049] Specifically, the detection device is a light intensity detector.

[0050] It should be noted that the detection device may not be provided, that is, the staff may manually adjust the working mode of the power supply equipment 20 according to the actual weather conditions, or set a preset program according to the local actual conditions (sunrise, sunset time and weather conditions) to achieve automatic operation.

[0051] Optionally, the energy storage device 22 is a lithium battery energy storage station.

[0052] In this embodiment, the control module 50 is also connected to the emergency power generation device 40. When the remaining power of the energy storage device 22 is less than or equal to a second preset value, the control module 50 controls the emergency power generation device 40 to start up, thereby supplying power to the energy refueling device 30 and the power-consuming device 1. In this way, the above arrangement can automatically utilize the emergency power generation device 40 to provide additional power when the energy storage device 22 cannot meet the energy refueling demand.

[0053] Specifically, the charging pile 31 is connected to the energy storage device 22, the emergency power generation equipment 40 and the photovoltaic power generation device 21 to realize electricity filling, the hydrogen fuel filling device 32 is connected to the hydrogen fuel filling device 32 to realize hydrogen fuel filling, and the liquid fuel filling device 33 is connected to the synthesis device 112 to realize methanol fuel filling.

[0054] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0055] The fuel preparation equipment of the energy supply system includes a liquid fuel preparation device and / or a hydrogen fuel preparation device, the power supply equipment includes a photovoltaic power generation device and an energy storage device, the photovoltaic power generation device is connected to the energy storage device to charge the energy storage device, the power supply equipment is connected to the power-consuming equipment and the fuel preparation equipment to supply power to the power-consuming equipment and the fuel preparation equipment, the energy filling equipment is connected to the power supply equipment and the fuel preparation equipment, the fuel preparation equipment is used to supply fuel to the energy filling equipment, the power supply equipment is used to supply electric energy to the energy filling equipment, and the emergency power generation equipment is connected to the energy filling equipment and the power-consuming equipment to supply power to the energy filling equipment and the power-consuming equipment. In this way, the energy supply system in this application first realizes the self-sufficient preparation of electric energy by setting up a photovoltaic power generation device, and supplies power to personnel (power-consuming equipment) and fuel preparation equipment through the power supply equipment, then while maintaining the daily operation of the energy supply system, it also realizes the self-sufficient preparation of fuel, and accordingly, the energy filling equipment can realize the filling function of electric energy and fuel. At the same time, the energy storage device can collect and store excess electricity. When facing the energy replenishment process of exploration personnel, if the storage capacity of the energy storage device is insufficient and the power generation power of the photovoltaic power generation module cannot meet the corresponding demand, the emergency power generation device can be used for additional power generation and replenishment to ensure that the energy supply system can meet the energy supply needs of exploration personnel, avoid the laying of power grids, and thus solve the problem that energy supply stations in existing technologies cannot be used in resource-scarce areas.

[0056] Obviously, the embodiments described above are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0057] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, tasks, devices, components and / or combinations thereof.

[0058] It should be noted that the terms "first," "second," and the like in the specification and claims of this application and the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein.

[0059] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. An energy supply system, characterized in that: include: A fuel production device (10) comprising a liquid fuel production device (11) and / or a hydrogen fuel production device (12); A power supply device (20) includes a photovoltaic power generation device (21) and an energy storage device (22), wherein the photovoltaic power generation device (21) is connected to the energy storage device (22) to charge the energy storage device (22), and the power supply device (20) is connected to both the power-consuming device (1) and the fuel production device (10) to supply power to the power-consuming device (1) and the fuel production device (10); an energy filling device (30) connected to both the power supply device (20) and the fuel production device (10), wherein the fuel production device (10) is used to supply fuel to the energy filling device (30), and the power supply device (20) is used to supply electrical energy to the energy filling device (30); An emergency power generation device (40) is connected to both the energy filling device (30) and the power-consuming device (1), and the emergency power generation device (40) is used to supply power to the energy filling device (30) and the power-consuming device (1).

2. The energy supply system according to claim 1, characterized in that: The emergency power generation equipment (40) is also connected to the fuel production equipment (10), and the emergency power generation equipment (40) generates electricity using the fuel produced by the fuel production equipment (10).

3. The energy supply system according to claim 1 or 2, characterized in that: The fuel production equipment (10) comprises a hydrogen fuel production device (12), and the hydrogen fuel production device (12) produces hydrogen fuel based on an electrolysis reaction.

4. The energy supply system according to claim 3, characterized in that: The fuel production equipment (10) further includes a methanol production device, and the methanol production device includes: A carbon dioxide capture device (111) for capturing carbon dioxide from the air; The synthesis device (112) is connected to both the hydrogen fuel production device (12) and the carbon dioxide capture device (111), and the synthesis device (112) is used to synthesize hydrogen fuel and carbon dioxide into liquid hydrocarbon fuel.

5. The energy supply system according to claim 4, characterized in that: The carbon dioxide capture device (111) captures carbon dioxide from the air based on a chemical adsorption method.

6. The energy supply system according to claim 4, characterized in that: The energy filling equipment (30) includes a charging pile (31), a hydrogen fuel filling device (32) and a liquid fuel filling device (33).

7. The energy supply system according to claim 2, characterized in that: The power supply device (20) has a first working mode, When the power supply device (20) is in the first working mode, the photovoltaic power generation device (21) charges the energy storage device (22), the photovoltaic power generation device (21) supplies power to the power-consuming device (1) and the hydrogen fuel production device (12), and the hydrogen fuel production device (12) produces hydrogen fuel.

8. The energy supply system according to claim 7, characterized in that: The power supply device (20) also has a second working mode, When the power supply device (20) is in the second working mode, the energy storage device (22) supplies power to the power-consuming device (1) and the liquid fuel production device (11), and the liquid fuel production device (11) produces liquid hydrocarbon fuel.

9. The energy supply system according to claim 8, characterized in that: The energy supply system further comprises: A detection device for detecting the light intensity of the environment in which the energy supply system is located; A control module (50) is connected to the detection device, and the control module (50) switches the power supply device (20) to a first working mode or a second working mode according to a detection value of the detection device; When the detection value of the detection device is less than or equal to a first preset value, the control module (50) switches the power supply device (20) to the second working mode; when the detection value of the detection device is greater than a second preset value, the control module (50) switches the power supply device (20) to the first working mode.

10. The energy supply system according to claim 9, characterized in that: The control module (50) is also connected to the emergency power generation equipment (40), and when the remaining power of the energy storage device (22) is less than or equal to a second preset value, the control module (50) controls the emergency power generation equipment (40) to start up, so as to supply power to the energy filling equipment (30) and the power-consuming equipment (1).

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