Wind, light and diesel storage integrated energy system

Abstract

The invention relates to the technical field of power supply, and discloses a wind, light and diesel storage integrated energy system which comprises an energy storage cabinet, and an energy storage battery pack is arranged in a first cavity of the energy storage cabinet; the energy storage cabinet is provided with a fire extinguishing device; a fire-fighting fan is arranged on the inner wall of the first cavity; a detector is arranged in the first cavity and used for detecting the temperature in the first cavity to obtain a first temperature value and transmitting the first temperature value to the controller, and the controller compares the first temperature value with a first standard temperature value and a second standard temperature value. When the first temperature value is larger than the first standard temperature value, a first adjusting instruction is output, and according to the first adjusting instruction, a fire fighting draught fan is controlled to be started to discharge combustible gas in the energy storage cabinet; when the first temperature value is larger than the second standard temperature value, a second adjusting instruction is output, and the fire extinguishing device is controlled to be started according to the second adjusting instruction; according to the invention, the permanent damage to the energy storage battery pack when the temperature rise of the energy storage battery pack is small is effectively avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of power supply, and in particular to a wind, solar, storage and diesel integrated energy system. Background Art

[0002] In order to meet the normal electricity needs of off-grid scenarios such as Gobi oil fields, mines, islands, farms, and villages without or lacking electricity at home and abroad, where there is no mains electricity and the power supply is unstable, photovoltaic, diesel and wind power are usually used to charge the energy storage system's energy storage batteries, and then the energy storage batteries are used to discharge for external loads; the energy storage batteries of traditional energy storage systems are usually installed in energy storage cabinets. When the temperature of most energy storage systems rises abnormally due to thermal runaway of the energy storage batteries, water firefighting is usually the mainstream. However, water firefighting is a destructive solution. After it is started, all energy storage batteries will be scrapped as a whole due to water ingress. If water firefighting is started only due to a small temperature rise or a small number of battery failures, it is easy to lose the big picture, which not only causes economic losses, but also affects the continuous operation of the energy storage system. Summary of the invention

[0003] In view of this, the present invention provides a wind, solar, energy storage and diesel integrated energy system to solve the problem that the fire-fighting method of the existing energy storage system is prone to cause economic losses and affect the continuous operation of the energy storage system.

[0004] The present invention provides a wind, solar, and fuel-storage integrated energy system, comprising:

[0005] An energy storage cabinet is provided with a partition frame therein, the partition frame is used to divide the interior of the energy storage cabinet into a first cavity and a second cavity, and a partition is provided in the second cavity, the partition is used to divide the second cavity into a first part and a second part from top to bottom in sequence;

[0006] An energy storage battery pack is arranged in the first cavity;

[0007] An electrical compartment, disposed in the first part and electrically connected to the energy storage battery pack;

[0008] a power distribution room, disposed in the second part and electrically connected to the electrical compartment;

[0009] An electrical load electrically connected to the power distribution room;

[0010] A fire extinguishing device, arranged in the energy storage cabinet;

[0011] A fire-fighting fan, arranged on the inner wall of the first cavity;

[0012] A detector is arranged in the first cavity, the detector is used to detect the temperature inside the first cavity to obtain a first temperature value, and transmit the first temperature value to a controller, the controller compares the first temperature value with a first standard temperature value, and outputs a first adjustment instruction when the first temperature value is greater than the first standard temperature value, and controls the fire extinguishing device to start according to the first adjustment instruction, and controls the fire fan to start to discharge the combustible gas in the energy storage cabinet.

[0013] The wind, solar, storage and diesel integrated energy system according to the present invention has at least the following beneficial effects:

[0014] 1. By setting a fire extinguishing device and setting a fire fan on the inner wall of the first cavity, when the controller receives the first temperature value detected by the detector and determines that the temperature value in the first cavity is abnormal, it can accurately determine that at least part of the cells in the energy storage battery pack in the first cavity are faulty and generate abnormal heat, and timely control the fire fan to start to discharge the combustible gas in the energy storage cabinet in the first stage of the abnormality, which can reduce the concentration of the combustible gas in the energy storage cabinet and reduce the risk of combustion, and dissipate the heat in the first cavity to the outside to cool the inside of the first cavity; at the same time, it can continuously detect the temperature in the first cavity entering the first stage of the abnormality in real time. When the temperature rise cannot be effectively slowed down by starting the fire fan for exhaust and heat dissipation, and the temperature value in the first cavity rises to greater than the second standard temperature and a flame appears, the fire extinguishing device is timely controlled to start spraying the fire extinguishing agent into the first cavity to extinguish the fire and cool down; effectively avoiding permanent damage to the energy storage battery pack; thereby reducing the economic loss caused by a small temperature rise.

[0015] 2. By arranging the energy storage battery pack at one end of the energy storage cabinet, and arranging the electrical cabin and the distribution room at the other end of the energy storage cabinet, and the electrical cabin is located directly above the distribution room, the space of the energy storage cabinet is utilized for design to integrate the energy storage battery pack, the distribution room and the electrical cabin into the same energy storage cabinet. Under the premise of ensuring stable and efficient electrical connection between the energy storage battery pack, the distribution room and the electrical cabin, the length of the required wires and the space occupied by the wiring of the wires are greatly reduced. The wiring arrangement is simpler and easier to maintain, and the overall layout is relatively compact, requiring less installation space, which is conducive to adaptation to installation in narrow spaces in off-grid use scenarios and is conducive to promotion and use.

[0016] In an optional embodiment, the detector is further used to detect the smoke concentration inside the first cavity to obtain a first smoke concentration value, and compare the first smoke concentration value with a standard smoke concentration value, and output the first adjustment instruction and the second adjustment instruction when the first smoke concentration value is greater than the standard smoke concentration value;

[0017] And / or, the detector is also used to detect the carbon monoxide concentration inside the first cavity to obtain a first carbon monoxide concentration value, and compare the first carbon monoxide concentration value with a standard carbon monoxide concentration value, and output the first adjustment instruction when the first carbon monoxide concentration value is greater than the standard carbon monoxide concentration value.

[0018] In an optional embodiment, it also includes a fire-fighting liquid tank for storing a coolant that is easily endothermic and vaporized and insulating. The liquid outlet of the fire-fighting liquid tank is detachably connected to a fire-fighting liquid inlet via a fire-fighting pipe. The fire-fighting liquid inlet is arranged on the side wall of the first cavity and is connected to the first cavity. A valve is arranged on the fire-fighting pipe.

[0019] In an optional embodiment, the controller is further used to compare the first temperature value with a third standard temperature value, output a third adjustment instruction when the first temperature value is greater than the third standard temperature value, and control the valve to open according to the third adjustment instruction.

[0020] In an optional embodiment, the energy storage cabinet is provided with a first cabinet door that is opened and closed at the position corresponding to the second cavity, a first illuminating lamp is provided on the inner side wall of the first cabinet door, and the first illuminating lamp is electrically connected to a first manual switch;

[0021] And / or, the energy storage cabinet is provided with a second cabinet door that opens and closes at the position corresponding to the first cavity, a second lighting lamp is provided on the inner side wall of the second cabinet door, and the second lighting lamp is electrically connected to a second manual switch.

[0022] In an optional embodiment, an insertion frame is provided on the inner side wall of the first cabinet door, and the insertion frame is used to place maintenance record files;

[0023] And / or, an explosion relief plate is provided at the top of the energy storage cabinet corresponding to the position of the energy storage battery pack;

[0024] And / or, a display screen is embedded in the side wall of the first cabinet door.

[0025] In an optional implementation, a bracket is provided on the outer side wall of the energy storage cabinet, a camera is provided on the bracket, and the camera is communicatively connected to a background monitoring device.

[0026] In an optional embodiment, it also includes wind power generation equipment, photovoltaic power generation equipment and a diesel generator, the first output end of the wind power generation equipment is electrically connected to the electrical cabin, and the second output end of the wind power generation equipment is electrically connected to the distribution room; the first output end of the photovoltaic power generation equipment is electrically connected to the electrical cabin, and the second output end of the photovoltaic power generation equipment is electrically connected to the distribution room; the first output end of the diesel generator is electrically connected to the electrical cabin, and the second output end of the diesel generator is electrically connected to the distribution room.

[0027] In an optional implementation, the controller is further configured to:

[0028] Obtaining the power generation of the wind power generation equipment and the photovoltaic power generation equipment, the power load of the power load, and the energy storage capacity of the energy storage battery pack;

[0029] When the power generation of the wind power generation equipment and the photovoltaic power generation equipment meets the power load of the power load, controlling the wind power generation equipment and the photovoltaic power generation equipment to jointly provide power load for the power load;

[0030] When the power generation of the wind power generation equipment and the photovoltaic power generation equipment exceeds the power load of the power load, and there is surplus energy storage capacity of the energy storage battery pack, the wind power generation equipment and the photovoltaic power generation equipment are controlled to charge the energy storage battery pack with the surplus power generated;

[0031] When the power generation of the wind power generation equipment and the photovoltaic power generation equipment does not meet the power load of the power load, and the energy storage capacity of the energy storage battery pack is greater than the minimum capacity, controlling the wind power generation equipment, the photovoltaic power generation equipment and the energy storage battery pack to jointly provide the power load for the power load;

[0032] When the power generation of the wind power generation equipment and the photovoltaic power generation equipment, and the energy storage capacity of the energy storage battery pack do not meet the power load of the power load, the diesel generator is started to provide power for the power load, and the power generation of the diesel generator is obtained in real time. When the power generation of the diesel generator exceeds the power load of the power load, the diesel generator is controlled to charge the energy storage battery pack with the excess power generated.

[0033] In an optional implementation, the photovoltaic power generation equipment includes a plurality of photovoltaic panels, and a single-phase diode is provided on the input circuit of each photovoltaic panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0035] Figure 1 This is a structural block diagram of a wind, solar, storage and diesel integrated energy system according to an embodiment of the present invention;

[0036] Figure 2This is a schematic diagram of the structure of an energy storage cabinet in a wind, solar, storage and diesel integrated energy system according to an embodiment of the present invention.

[0037] Description of reference numerals:

[0038] 100-energy storage cabinet, 110-partition frame, 120-fire liquid inlet, 130-first cabinet door, 131-insertion frame, 140-first lighting, 150-second cabinet door, 151-air inlet, 160-second lighting, 170-explosion venting panel, 180-display screen, 191-bracket, 192-camera, 200-energy storage battery pack, 300-electrical compartment, 400-distribution room, 510-fire fan, 600-fan controller, 700-air conditioner. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are 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 those skilled in the art without creative work are within the scope of protection of the present invention.

[0040] In the description of this embodiment, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing this embodiment and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting this embodiment. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0041] In the description of this embodiment, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this embodiment can be understood according to specific circumstances.

[0042] Combine the following Figure 1 and Figure 2 , describing an embodiment of the present invention.

[0043] According to an embodiment of the present invention, a wind, solar, storage and diesel integrated energy system is provided, including an energy storage cabinet 100, wherein a partition frame 110 is provided in the energy storage cabinet 100, wherein the partition frame 110 is used to separate the interior of the energy storage cabinet 100 into a first chamber and a second chamber, wherein a partition is provided in the second chamber, wherein the partition is used to separate the second chamber into a first part and a second part from top to bottom in sequence; wherein an energy storage battery pack 200 is provided in the first chamber, wherein an electrical compartment 300 electrically connected to the energy storage battery pack 200 is provided in the first part, wherein a power distribution room 400 electrically connected to the electrical compartment 300 is provided in the second part, wherein the power distribution room 400 is electrically connected to a useful electrical load; wherein the energy storage cabinet 100 is provided with a fire extinguishing device ; A fire-fighting fan 510 is provided on the inner wall of the first cavity; a detector is provided in the first cavity, and the detector is used to detect the temperature inside the first cavity to obtain a first temperature value, and transmit the first temperature value to a controller, and the controller compares the first temperature value with a first standard temperature value and a second standard temperature value respectively, and outputs a first adjustment instruction when the first temperature value is greater than the first standard temperature value, and controls the fire-fighting fan 510 to start and discharge the combustible gas in the energy storage cabinet 100 according to the first adjustment instruction; and outputs a second adjustment instruction when the first temperature value is greater than the second standard temperature value, and controls the fire-fighting device to start according to the second adjustment instruction.

[0044] The wind-solar-energy-storage-diesel integrated energy system of this embodiment is provided with a fire extinguishing device, and a fire-fighting fan 510 is provided on the inner wall of the first cavity. When the controller receives the first temperature value detected by the detector and determines that the temperature value in the first cavity is abnormal, it can accurately determine that at least part of the cells in the energy storage battery pack 200 in the first cavity are faulty (for example, thermal runaway occurs) and generate abnormal heat, and promptly control the fire-fighting fan 510 to start and discharge the combustible gas in the energy storage cabinet 100 at the first stage of the abnormality, which can reduce the concentration of the combustible gas in the energy storage cabinet 100 and reduce the risk of combustion, and can also discharge the combustible gas in the first cavity. The heat is dissipated to the outside to cool the inside of the first cavity; at the same time, the temperature in the first cavity entering the first abnormal stage can be continuously detected in real time. When the temperature rise cannot be effectively slowed down by starting the fire-fighting fan 510 for exhaust and heat dissipation, and the temperature value in the first cavity rises to greater than the second standard temperature and a flame appears, the fire-fighting extinguishing device is promptly controlled to start spraying a fire extinguishing agent (specifically, aerosol or perfluorohexanone) into the first cavity to extinguish the fire and cool down the temperature; effectively avoiding permanent damage to the energy storage battery pack 200 when a small temperature rise occurs in the energy storage battery pack 200; thereby reducing the economic losses caused by a small temperature rise. At the same time, by arranging the energy storage battery pack 200 at one end of the energy storage cabinet 100, and arranging the electrical cabin 300 and the power distribution room 400 at the other end of the energy storage cabinet 100, and the electrical cabin 300 is located directly above the power distribution room 400, the space of the energy storage cabinet 100 is utilized for design to realize the integration of the energy storage battery pack 200, the power distribution room 400 and the electrical cabin 300 in the same energy storage cabinet 100. On the premise of ensuring stable and efficient electrical connection between the energy storage battery pack 200, the power distribution room 400 and the electrical cabin 300, the length of the required wires and the space required for arranging the wires are greatly reduced, the wire arrangement is simpler and easier to maintain, and the overall layout is relatively compact, the installation space required is small, which is conducive to adaptation to installation in narrow spaces in off-grid use scenarios and is conducive to promotion and use.

[0045] It should be noted that, in specific applications, the energy storage cabinet 100 can adopt a standard container, which is conducive to promoting standardized production of products while reducing development costs.

[0046] In specific applications, the fire extinguishing device can be an aerosol fire extinguishing device or a perfluorohexanone fire extinguishing device.

[0047] It is understandable that the energy storage cabinet 100 is provided with an air conditioner 700 to cool the energy storage battery pack 200, control the temperature and temperature rise of the energy storage battery pack 200 during charging and discharging, and make the energy storage battery pack 200 always work within a suitable temperature range, effectively extending the service life of the energy storage battery pack 200 and the system of this embodiment. When at least part of the cells in the energy storage battery pack 200 fail and generate abnormal heat, the air conditioner 700 alone cannot cool down, so the fire fan 510 and the fire extinguishing device are needed.

[0048] It can be understood that the first standard temperature value refers to the abnormal heat generated by the failure of some cells in the energy storage battery pack 200, which causes the temperature value in the first cavity to exceed the upper limit of the temperature range of normal use. The second standard temperature value refers to the temperature in the first cavity exceeding the first standard temperature value and continuing to rise to the temperature at which the energy storage battery pack 200 can produce combustion after the fire-fighting fan 510 is started for heat dissipation, for example, the second standard temperature value is set to 170°C.

[0049] In some embodiments, the detector is also used to detect the smoke concentration inside the first cavity to obtain a first smoke concentration value, and compare the first smoke concentration value with a standard smoke concentration value, and output the first adjustment instruction and the second adjustment instruction when the first smoke concentration value is greater than the standard smoke concentration value. When the battery cells in the energy storage battery pack 200 have thermal runaway and cause fire, the smoke concentration in the first cavity rises, and the smoke concentration in the first cavity is detected in real time by the detector, so that when the smoke concentration in the first cavity is abnormal, it is convenient to accurately judge that at least part of the battery cells in the energy storage battery pack 200 in the first cavity have thermal runaway and combustion occurs, and after starting the fire-fighting fan 510 to discharge the generated thick smoke and combustible gas to the outside to slow down the spread of the fire, the fire-fighting extinguishing device is controlled to start spraying the fire-extinguishing agent into the first cavity to extinguish the fire and reduce the temperature, so as to further improve the safety of the use of this embodiment.

[0050] It can be understood that the standard smoke concentration value refers to the smoke concentration value inside the first cavity when the battery cells in the energy storage battery pack 200 enter the fire stage.

[0051] Specifically, the detector is also used to detect the carbon monoxide concentration inside the first cavity to obtain a first carbon monoxide concentration value, and compare the first carbon monoxide concentration value with a standard carbon monoxide concentration value, and output the first adjustment instruction when the first carbon monoxide concentration value is greater than the standard carbon monoxide concentration value. When the battery cells in the energy storage battery pack 200 are in a thermal runaway state, the carbon monoxide concentration in the first cavity will rise. The detector is used to detect the carbon monoxide concentration in the first cavity in real time, so that when the carbon monoxide concentration in the first cavity is abnormal, it is convenient to accurately judge that at least part of the battery cells in the energy storage battery pack 200 in the first cavity are in a thermal runaway state, and promptly start the fire-fighting fan 510 to discharge the carbon monoxide gas to the outside, reduce the concentration of the combustible gas in the first cavity, reduce the risk of combustion, and further improve the safety of use of this embodiment.

[0052] It can be understood that the standard carbon monoxide concentration value refers to the carbon monoxide concentration value inside the first cavity when at least part of the battery cells in the energy storage battery pack 200 enter a stage where thermal runaway occurs.

[0053] Specifically, the detector is also used to detect the concentration of the VOC gas inside the first cavity to obtain a first VOC gas concentration value, and compare the first VOC gas concentration value with a standard VOC gas concentration value, and output the first adjustment instruction when the first VOC gas concentration value is greater than the standard VOC gas concentration value; when the battery cells in the energy storage battery pack 200 are in a thermal runaway state, the concentration of the VOC gas in the first cavity will increase, and the concentration of the VOC gas in the first cavity is detected in real time by the detector, so as to accurately judge that at least part of the battery cells in the energy storage battery pack 200 in the first cavity are in a thermal runaway state when an abnormal VOC gas concentration value in the first cavity is detected, and promptly start the fire-fighting fan 510 to discharge the VOC gas to the outside, thereby reducing the concentration of the VOC gas in the first cavity, reducing the risk of combustion and reducing the risk of damage to the operation and maintenance personnel when the operation and maintenance personnel open the cabinet door for operation and maintenance, further improving the safety of use of this embodiment.

[0054] It is understandable that the standard VOC gas concentration value refers to the VOC gas concentration value inside the first cavity when at least part of the cells in the energy storage battery pack 200 enter a stage where thermal runaway occurs. VOC gas refers to volatile organic compounds.

[0055] Specifically, the fire-fighting fan 510 is electrically connected to a manual start-stop switch, and the fire-fighting fan 510 is manually turned on or off by the manual start-stop switch. On the one hand, when accepting the reliability of use of this embodiment, it is convenient to test whether the fire-fighting fan 510 can be used normally; on the other hand, when the fire-fighting extinguishing device is started to spray the fire extinguishing agent into the first cavity to extinguish the fire and the controller's start-stop control of the fire-fighting fan 510 fails, the fire-fighting fan 510 can be manually shut down.

[0056] Specifically, an exhaust port is provided on the inner wall of the first cavity, the fire-fighting fan 510 is arranged in the exhaust port, and an air inlet 151 is provided at the lower end of the inner wall of the first cavity.

[0057] In some embodiments, the energy system also includes a fire-fighting liquid tank for storing a heat-absorbing, vaporizing and insulating coolant. The liquid outlet of the fire-fighting liquid tank is detachably connected to a fire-fighting liquid inlet 120 through a fire-fighting pipe. The fire-fighting liquid inlet 120 is arranged on the side wall of the first cavity and is connected to the first cavity. A valve is provided on the fire-fighting pipe. When the fire extinguishing device is started to spray the fire extinguishing agent to extinguish the fire and cool down the energy storage battery pack 200, and the thermal runaway of the battery cell further spreads, the fire hose can be connected to the fire liquid inlet 120, and the valve can be opened to allow the coolant in the anti-liquid tank to be transported to the first cavity. At this time, the coolant submerges the conductive metal pole pieces of the battery cell of the energy storage battery pack 200, and contacts the conductive metal pole pieces and absorbs heat to produce a gasification phase change, which can quickly block the heat conduction of the conductive metal pole pieces of each battery cell in the energy storage battery pack 200, and actively take away the heat generated by the battery thermal runaway process, effectively cool down the energy storage battery pack 200, thereby effectively blocking the occurrence and development of "thermal runaway spread" and effectively preventing re-ignition, thereby ensuring the safety of the battery energy storage system. In specific applications, the coolant can be a fluorinated liquid.

[0058] Specifically, the controller is also used to compare the first temperature value with the third standard temperature value, output a third adjustment instruction when the first temperature value is greater than the third standard temperature value, and control the valve to open according to the third adjustment instruction. After the fire extinguishing device is started to spray the fire extinguishing agent to extinguish the fire and cool down, when the temperature in the first cavity continues to rise and exceeds the second standard temperature value and reaches the third standard temperature value, it can be accurately judged that the energy storage battery pack 200 has reignited and the thermal runaway of the battery cell has further spread, and the valve can be controlled to open the valve in time to transport the coolant in the anti-liquid tank to the first cavity, actively take away the heat generated by the battery thermal runaway process, and effectively cool down the energy storage battery pack 200, thereby effectively blocking the occurrence and development of "thermal runaway spread" and effectively preventing reignition.

[0059] It can be understood that the third standard temperature value refers to the temperature value in the first cavity when the energy storage battery pack 200 re-ignites and the thermal runaway of the battery cell further spreads.

[0060] It should be noted that when there is no need to open the door of the energy storage cabinet 100 for operation and maintenance (ie, the present embodiment is in a normal power supply use state), the fire-fighting pipe is connected to the fire-fighting liquid inlet 120 and communicates with the first cavity.

[0061] In some embodiments, the energy storage cabinet 100 is provided with a first cabinet door 130 that opens and closes at the position corresponding to the second cavity, and a first lighting lamp 140 is provided on the inner wall of the first cabinet door 130, and the first lighting lamp 140 is electrically connected to a first manual switch; relative to the structure in which the first lighting lamp 140 is automatically turned on when the first cabinet door 130 is opened, this embodiment controls the opening and closing of the first lighting lamp 140 through the first manual switch, and there is no need to turn on the first lighting lamp 140 during daytime operation and maintenance, which can reduce the energy consumption of the system of this embodiment.

[0062] Specifically, the energy storage cabinet 100 is provided with a second cabinet door 150 that opens and closes corresponding to the position of the first cavity, and a second lighting lamp 160 is provided on the inner wall of the second cabinet door 150, and the second lighting lamp 160 is electrically connected to a second manual switch; relative to the structure in which the second lighting lamp 160 is automatically turned on when the second cabinet door 150 is opened, this embodiment controls the opening and closing of the second lighting lamp 160 through the second manual switch, and there is no need to turn on the second lighting lamp 160 during daytime operation and maintenance, which can reduce the energy consumption of the system of this embodiment.

[0063] Specifically, an insertion frame 131 is provided on the inner wall of the first cabinet door 130, and the insertion frame 131 is used to place maintenance record files; so that different operation and maintenance personnel can obtain historical maintenance data by reading the maintenance record files during operation and maintenance at different stages.

[0064] Specifically, an explosion relief plate 170 is provided at the top of the energy storage cabinet 100 corresponding to the position of the energy storage battery pack 200. Considering that the pressure in the first cavity will increase sharply when the battery cell of the energy storage battery pack 200 is in a thermal runaway state, the explosion relief plate 170 can be opened quickly when the pressure exceeds the safe range to release the pressure in the first cavity and effectively prevent explosion.

[0065] Specifically, a display screen 180 is embedded in the side wall of the first cabinet door 130; the energy storage capacity of the energy storage battery pack 200, the temperature value inside the first cavity and other operating data are visualized on the display screen 180 for easy observation.

[0066] Specifically, a bracket 191 is provided on the outer wall of the energy storage cabinet 100, and a camera 192 is provided on the bracket 191. The camera 192 is connected to a background monitoring device; the staff can observe the on-site environment through the video images captured by the camera 192 and transmitted to the background monitoring device, thereby realizing the function of remote monitoring. In specific applications, the background monitoring device can be a computer, a mobile phone, etc.

[0067] In some embodiments, the energy system further includes a wind power generation device, a photovoltaic power generation device and a diesel generator. The first output end of the wind power generation device is electrically connected to the electrical cabin 300, and the second output end of the wind power generation device is electrically connected to the power distribution room 400; the first output end of the photovoltaic power generation device is electrically connected to the electrical cabin 300, and the second output end of the photovoltaic power generation device is electrically connected to the power distribution room 400; the first output end of the diesel generator is electrically connected to the electrical cabin 300, and the second output end of the diesel generator is electrically connected to the power distribution room 400. The power generated by the wind power generation device, the photovoltaic power generation device and the diesel generator is preferentially provided to the power load, and when there is surplus power generation, the surplus power generated is used to charge the energy storage battery pack 200, so that when the power generation of the wind power generation device, the photovoltaic power generation device and the diesel generator cannot meet the use requirements of the power load on the basis of the complementary use of wind, solar and diesel, the energy storage battery pack 200 is used to supply power to the power load, so as to meet the off-grid use scenario requiring uninterrupted power supply.

[0068] Specifically, a first energy storage inverter and a second energy storage inverter are provided in the electrical compartment 300, and the first output end of the wind power generation equipment, the first output end of the photovoltaic power generation equipment and the first output end of the diesel generator are all connected to the first energy storage inverter; the first energy storage inverter is used to convert the input alternating current into direct current and transmit it to the energy storage battery pack 200 for charging; the second energy storage inverter is used to convert the direct current output by the energy storage battery pack 200 into alternating current and transmit it to the distribution room 400.

[0069] Specifically, the wind turbine generator includes at least one wind turbine generator currently available on the market.

[0070] Specifically, the controller is also used for:

[0071] Obtaining the power generation of the wind power generation equipment and the photovoltaic power generation equipment, the power load of the power load, and the energy storage capacity of the energy storage battery pack 200;

[0072] When the power generation of the wind power generation equipment and the photovoltaic power generation equipment meets the power load of the power load, controlling the wind power generation equipment and the photovoltaic power generation equipment to jointly provide power load for the power load;

[0073] When the power generation of the wind power generation equipment and the photovoltaic power generation equipment exceeds the power load of the power load, and the energy storage capacity of the energy storage battery pack 200 is surplus, the wind power generation equipment and the photovoltaic power generation equipment are controlled to charge the energy storage battery pack 200 with the surplus power generated;

[0074] When the power generation of the wind power generation equipment and the photovoltaic power generation equipment does not meet the power load of the power load, and the energy storage capacity of the energy storage battery pack 200 is greater than the minimum capacity, control the wind power generation equipment, the photovoltaic power generation equipment and the energy storage battery pack 200 to jointly provide power for the power load;

[0075] When the power generation of the wind power generation equipment and the photovoltaic power generation equipment, and the energy storage capacity of the energy storage battery pack 200 do not meet the power load of the power load, the diesel generator is started to provide power for the power load, and the power generation of the diesel generator is obtained in real time. When the power generation of the diesel generator exceeds the power load of the power load, the diesel generator is controlled to charge the energy storage battery pack 200 with the excess power generated.

[0076] The energy system of this embodiment gives priority to using the electric energy converted from renewable resources (specifically wind energy and solar energy) to jointly provide the electric load, and stores the generated excess electricity in the energy storage battery pack 200, so that when the power generation of wind power generation equipment and photovoltaic power generation equipment is insufficient, the energy storage battery pack 200 is preferentially used for discharge to complement the wind power generation equipment and photovoltaic power generation equipment to provide the electric load; when the power generation of the wind power generation equipment and the photovoltaic power generation equipment and the discharge of the energy storage battery pack 200 cannot meet the power load of the power load, the diesel generator is started to convert non-renewable resources (specifically diesel) into electric energy to provide the power load, and the generated excess electricity is stored in the energy storage battery pack 200; it can reduce the waste of electric energy, and reduce the use of diesel on the basis of meeting the power load of the power load under off-grid conditions; it is particularly suitable for off-grid use scenarios in remote mountainous areas where it is not conducive to transporting diesel.

[0077] It is understandable that the minimum capacity refers to the capacity corresponding to when the energy storage battery pack 200 cannot discharge normally.

[0078] In a specific application, the controller may be an energy management system (EMS for short).

[0079] In some embodiments, the photovoltaic power generation equipment includes a plurality of photovoltaic panels, and a single-phase diode is provided on the input circuit of each photovoltaic panel. Considering that there is a voltage difference between the two strings of the same MPPT when the input circuit of the photovoltaic panel is input, the circulating current may cause the photovoltaic input to fail to be normal and even damage the photovoltaic panel. This embodiment can solve the above problem by adding a single-phase diode to the input circuit of each photovoltaic panel; and the number of photovoltaic panels directly connected to each string can be flexibly selected according to actual application requirements, which makes the application more flexible and friendly.

[0080] Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended invention.

Claims

1. A wind, solar, and diesel storage integrated energy system, characterized in that: include: An energy storage cabinet (100) is provided with a partition frame (110) therein, the partition frame (110) being used to partition the interior of the energy storage cabinet (100) into a first chamber and a second chamber, a partition being provided in the second chamber, the partition being used to partition the second chamber into a first part and a second part in sequence from top to bottom; An energy storage battery pack (200) is arranged in the first cavity; An electrical compartment (300) disposed in the first part and electrically connected to the energy storage battery pack (200); A power distribution room (400), arranged in the second part and electrically connected to the electrical compartment (300); An electrical load electrically connected to the power distribution room (400); A fire extinguishing device, arranged in the energy storage cabinet (100); A fire-fighting fan (510), arranged on the inner wall of the first chamber; a detector, arranged in the first cavity, the detector being used to detect the temperature inside the first cavity to obtain a first temperature value, and transmit the first temperature value to a controller, the controller comparing the first temperature value with a first standard temperature value and a second standard temperature value respectively, outputting a first adjustment instruction when the first temperature value is greater than the first standard temperature value, and controlling the fire-fighting fan (510) to start according to the first adjustment instruction to discharge the combustible gas in the energy storage cabinet (100); And when the first temperature value is greater than the second standard temperature value, a second adjustment instruction is output, and the fire extinguishing device is controlled to start according to the second adjustment instruction.

2. The wind, solar, storage and diesel integrated energy system according to claim 1 is characterized in that: The detector is also used to detect the smoke concentration inside the first cavity to obtain a first smoke concentration value, and compare the first smoke concentration value with a standard smoke concentration value, and output the first adjustment instruction and the second adjustment instruction when the first smoke concentration value is greater than the standard smoke concentration value; And / or, the detector is also used to detect the carbon monoxide concentration inside the first cavity to obtain a first carbon monoxide concentration value, and compare the first carbon monoxide concentration value with a standard carbon monoxide concentration value, and output the first adjustment instruction when the first carbon monoxide concentration value is greater than the standard carbon monoxide concentration value.

3. The wind, solar, storage and diesel integrated energy system according to claim 1 is characterized in that: It also includes a fire-fighting liquid tank for storing a heat-absorbing and vaporizing insulating coolant. The liquid outlet of the fire-fighting liquid tank is detachably connected to a fire-fighting liquid inlet (120) via a fire-fighting pipe. The fire-fighting liquid inlet (120) is arranged on the side wall of the first cavity and communicates with the first cavity. A valve is arranged on the fire-fighting pipe.

4. The wind, solar, storage and diesel integrated energy system according to claim 3 is characterized in that: The controller is further configured to compare the first temperature value with a third standard temperature value, output a third adjustment instruction when the first temperature value is greater than the third standard temperature value, and control the valve to open according to the third adjustment instruction.

5. The wind, solar, storage and diesel integrated energy system according to claim 1 is characterized in that: The energy storage cabinet (100) is provided with a first cabinet door (130) that is opened and closed corresponding to the position of the second cavity, a first illuminating lamp (140) is provided on the inner side wall of the first cabinet door (130), and the first illuminating lamp (140) is electrically connected to a first manual switch; And / or, the energy storage cabinet (100) is provided with a second cabinet door (150) that opens and closes corresponding to the position of the first cavity, a second lighting lamp (160) is provided on the inner side wall of the second cabinet door (150), and the second lighting lamp (160) is electrically connected to a second manual switch.

6. The wind, solar, storage and diesel integrated energy system according to claim 5 is characterized in that: An insertion frame (131) is provided on the inner side wall of the first cabinet door (130), and the insertion frame (131) is used to place maintenance record files; And / or, an explosion relief plate (170) is provided at a position on the top of the energy storage cabinet (100) corresponding to the energy storage battery pack (200); And / or, a display screen (180) is embedded in the side wall of the first cabinet door (130).

7. The wind, solar, storage and diesel integrated energy system according to claim 1 is characterized in that: The outer side wall of the energy storage cabinet (100) is provided with a bracket (191), and a camera (192) is provided on the bracket (191), and the camera (192) is communicatively connected to a background monitoring device.

8. The wind, solar, storage and diesel integrated energy system according to claim 1 is characterized in that: It also includes wind power generation equipment, photovoltaic power generation equipment and a diesel generator, wherein the first output end of the wind power generation equipment is electrically connected to the electrical cabin (300), and the second output end of the wind power generation equipment is electrically connected to the power distribution room (400); the first output end of the photovoltaic power generation equipment is electrically connected to the electrical cabin (300), and the second output end of the photovoltaic power generation equipment is electrically connected to the power distribution room (400); the first output end of the diesel generator is electrically connected to the electrical cabin (300), and the second output end of the diesel generator is electrically connected to the power distribution room (400).

9. The wind, solar, storage and diesel integrated energy system according to claim 8 is characterized in that: The controller is also used for: Obtaining the power generation of the wind power generation equipment and the photovoltaic power generation equipment, the power load of the power load, and the energy storage capacity of the energy storage battery pack (200); When the power generation of the wind power generation equipment and the photovoltaic power generation equipment meets the power load of the power load, controlling the wind power generation equipment and the photovoltaic power generation equipment to jointly provide power load for the power load; When the power generation of the wind power generation equipment and the photovoltaic power generation equipment exceeds the power load of the power load, and the energy storage battery pack (200) has surplus energy storage capacity, controlling the wind power generation equipment and the photovoltaic power generation equipment to charge the energy storage battery pack (200) with the surplus power generated; When the power generation of the wind power generation equipment and the photovoltaic power generation equipment does not meet the power load of the power load, and the energy storage capacity of the energy storage battery pack (200) is greater than the minimum capacity, controlling the wind power generation equipment, the photovoltaic power generation equipment and the energy storage battery pack (200) to jointly provide power for the power load; When the power generation of the wind power generation equipment and the photovoltaic power generation equipment, and the energy storage capacity of the energy storage battery pack (200) do not meet the power load of the power load, the diesel generator is started to provide power for the power load, and the power generation of the diesel generator is obtained in real time. When the power generation of the diesel generator exceeds the power load of the power load, the diesel generator is controlled to charge the energy storage battery pack (200) with the surplus power generated.

10. A wind, solar, storage and diesel integrated energy system according to claim 8 or 9, characterized in that: The photovoltaic power generation equipment comprises a plurality of photovoltaic panels, and a single-phase diode is arranged on the input circuit of each photovoltaic panel.

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