TW201939843A - Multifunctional electric energy supply system including at least one natural gas source, a fuel cell power generation device, an energy management control device, and a battery exchange cabinet - Google Patents

Abstract

A multifunctional electric energy supply system includes at least one natural gas source, a fuel cell power generation device, an energy management control device, and a battery exchange cabinet. The natural gas source outputs natural gas to the fuel cell power generation device to enable the fuel cell power generation device to generate and output electricity. The energy management control device is connected to the fuel cell power generation device, the battery exchange cabinet, at least one micro grid, and the mains electricity, in order to control the fuel cell power generation device to supply electricity to the battery exchange cabinet and the micro gird, sell the electricity back to the mains electricity, and control the battery exchange cabinet and the mains electricity as backup power sources. The battery exchange cabinet can provide battery exchange and charging for the electric vehicle, and can be used as the emergency backup power source of the micro grid when the fuel cell power generation device and the mains electricity failure or the micro grid is in short power supply, so as to supply emergency power to the micro grid or provide on-site instant backup charging for the electric vehicle.

Description

Multifunctional power energy supply system

The present invention relates to a multifunctional electric power energy supply system, in particular to a multifunctional electric power with a fuel cell power generation device, an energy management control device and a battery exchange cabinet, which is provided with battery exchange, charging energy storage, microgrid power supply and backup. Energy supply system.

According to the forecast, electric vehicles are expected to become the main transportation vehicles of this century to the next century. In particular, the impact of rising environmental protection awareness on the implementation of green energy policies and the urgent need to improve air pollution. And the number of applications will increase year by year. Therefore, the charging and battery exchange systems of electric batteries, which are the main sources of power in electric vehicles, are relatively important. They will be related to the promotion effect and convenience of electric vehicles in the future.

However, the currently used electric vehicle charging and battery exchange methods are mainly based on fixed charging stations or battery exchange cabinets. However, the main battery charging power source of conventional charging stations or battery exchange cabinets must use city electricity. The power supply, that is, the commercial power supply provided by the electric power company's electricity supplier of AC mains power, in addition to the traditional commercial power supply that must consume more capacity, and the commercial power generators must use more thermal power generating units with air pollution to operate and generate electricity. In addition to reducing the environmental performance of electric vehicles that originally wanted to improve green energy and environmental protection, the charging station or battery exchange cabinet will be restricted to the power company's power generation company of the AC mains power supply when the installation location is selected. The location of the power transmission and distribution network and the capacity of the power supply equipment. If it is necessary to add additional mains power and power supply equipment required for charging at the charging station or the battery exchange cabinet installation site, the power generation operator must additionally set up complex and high costs. Power distribution network and power distribution equipment, making the charging station or battery exchange cabinet difficult to install and It is too high, which causes the installation speed and quantity of the charging station or battery exchange cabinet to be low, and it is excessively concentrated in urban or metropolitan areas. For remote locations, the number and location of installations are more negligible and ignored. ,and The inability to provide charging or battery exchange for most electric vehicles makes it impossible for electric vehicles to be used throughout the country, resulting in the use and growth of the electric vehicles being less than expected. This is a major cause of the fact that electric vehicles are still not widely used as the main means of transportation. the reason.

In addition, the above-mentioned conventional charging station or battery exchange cabinet will be limited by the power supply limit of the mains power supply. If the mains power supply fails for some reason, the charging station or battery exchange cabinet will be immediately disabled and unable to operate. As a result, operators need to install additional expensive diesel auxiliary generators with secondary air pollution problems at the charging station or battery exchange cabinet installation site or use solar panels with small power generation to temporarily assist the charging of the charging station or battery exchange cabinet. Power, but this diesel auxiliary generator or solar panel has a limited power generation capacity and cannot afford the long-term charging power required by the charging station or power exchange cabinet for a long time. The fate of a conventional charging station or battery exchange cabinet due to insufficient charging power must also be eventually shut down. In addition, the conventional charging station or battery exchange cabinet is a heavy and heavy power source in the eyes of the power generators of the city power supply. Power load, and it is not a necessary power load that must not be blacked out. Therefore, power generators of commercial power supply are considering power outages in order During the list, the charging station or battery exchange cabinet will not be included in the non-priority blackout list, not to mention, if the mains power supply is subject to natural disasters or irresistible factors and there is a large and no power outage, the conventional charging station or battery will be known. The exchange cabinet still has a huge risk of loss due to unexpected power outages and shutdowns. This is the main reason for the current charging stations or battery exchange cabinet operators to set up and stop in the field, and it is the traditional reason for charging stations or charging stations for electric vehicles. A problem to be solved in battery exchange cabinets.

In addition, in terms of related prior patent technical documents, such as U.S. Invention Patent No. US9,830,753 "APPARATUS, METHOD AND ARTICLE FOR RESERVING POWER STORAGE DEVICES AT RESERVING POWER STORAGE DEVICE COLLECTION, CHARGING AND DISTRIBUTION MACHINES Device collection, charging, and distribution equipment, methods and articles for ordering power storage devices) '' invention patent case, new patent case of the Republic of China Patent Gazette No. M431494 “Battery Charging Exchange Station”, “Matter Structure of Battery Exchange Station” M425409 The new patent case and the new patent case No. M393453 "Electric Vehicle Battery Exchange System" both reveal a number of typical electric vehicle charging stations or battery exchange cabinet technologies. Similarly, they all rely on a single utility power source as the main Or the only charging power source, and there is still a mains power source like a conventional charging station or battery exchange cabinet To charge energy, it is necessary to consume more thermal power generating units with air pollution problems to generate comprehensive green energy and environmental protection effects, and it is necessary for the generators of the city power supply to set up complex and high-cost power distribution networks and power distribution equipment. As a result, the installation of the charging station or the battery exchange cabinet is difficult and the installation cost is relatively high. As a result, the installation speed of the charging station or the battery exchange cabinet is slow and the number is low. In addition, once the AC mains power fails, the charging station or the battery exchange cabinet will cause problems and shortcomings of a total loss of shutdown and a huge risk of shutdown losses.

In addition, the applicant applied to the Bureau for approval of the invention patent case of the Republic of China Patent Gazette No. I430904 "Mini Battery Exchange System and Method", the new patent case of "Mobile Battery Charging Exchange Device" No. M367510, New patents No. M379269 "fixed-point battery exchange device", No. M385160 "hybrid battery exchange device" new patent case, and No. M398289 "embedded battery exchange device" new patent case, initially revealed multiple batteries Technology and structure of switching system and switching device.

The main purpose of the present invention is to provide a multifunctional electric energy energy supply system to eliminate the conventional charging station or battery exchange cabinet using the mains power source as the main charging power source. The non-green energy environmental protection power source and the need to consume more have air pollution problems. The thermal power generating unit cannot generate comprehensive green energy and environmental protection effects, and requires the complex and high-cost distribution network and power distribution equipment to be set up by the power generation company of the city power supply. This makes the installation of the charging station or battery exchange cabinet difficult and The installation cost is too high, which causes the installation speed and quantity of the charging station or battery exchange cabinet to be slow, and the installation location and quantity penetration rate of the charging station or battery exchange cabinet is not good, and once the AC mains power fails, the charging Stations or battery exchange cabinets will cause the problems and shortcomings of a total disabling shutdown and a huge risk of shutdown losses.

For this reason, the multifunctional electric power energy supply system of the present invention includes: at least one natural gas source; at least one fuel cell power generation device provided with at least one gas source input end and at least one power output end, and the gas source input end is connected to the A natural gas source to enable the power output end of the fuel cell power generation device to output power; at least one energy management control device provided with at least one power input end and at least one power output end, The power input end is connected to the power output end of the fuel cell power generation device to obtain the power generation power output from the power output end of the fuel cell power generation device, and is controlled by the energy management control device to be converted into at least one output power. The power output terminal of the management control device is output; and at least one battery exchange cabinet is connected to the output power output from the power output terminal of the energy management control device to provide the battery exchange cabinet as a battery charging power source.

Furthermore, in the multifunctional electric power energy supply system of the present invention, the natural gas source is formed by a natural gas storage tank.

In the above-mentioned multifunctional electric power energy supply system of the present invention, the natural gas source is constituted by a natural gas supply pipeline.

In the above multifunctional electric power energy supply system of the present invention, the gas source input end of the fuel cell power generation device is connected to at least one micro gasification device, and the micro gasification device is connected to at least one liquid natural gas source (LNGSOURCE), so that the The liquid natural gas source inputs liquid natural gas to the micro-gasification device for gasification and processing into natural gas, and then enters the gas source input end of the fuel cell power generation device.

In the above-mentioned multifunctional electric power energy supply system of the present invention, the liquid natural gas source is constituted by a liquid natural gas tanker.

In the above-mentioned multifunctional electric power energy supply system of the present invention, the liquid natural gas source is constituted by a liquid natural gas storage tank.

In the above-mentioned multi-functional power energy supply system of the present invention, the power output from the power output terminal of the fuel cell power generation device is a DC power source.

In the above-mentioned multifunctional power energy supply system of the present invention, the energy management control device includes: at least one power conversion switching module connected to the power input terminal to input the power output from the power output terminal of the fuel cell power generation device, And convert into at least one output power switching output; at least one AC power conversion module, the AC power conversion module can convert AC power into DC power input or convert DC power into AC power output function, and connect the power conversion switching module , The AC power conversion module is provided with at least one power input terminal, and the power input terminal is connected to at least one mains power supply, so as to be controlled by the power conversion switching module to convert the mains power into DC power and input the power conversion switching mode In the group; and At least one charging power output / input device connected to the power conversion switching module and the power output terminal of the energy management control device to output the charging power to the battery exchange cabinet or be exchanged by the battery under the control of the power conversion switching module. The cabinet reversely inputs the battery power through the power output terminal through the charging power output / input device into the power conversion switching module.

In the above-mentioned multifunctional electric power energy supply system of the present invention, the power conversion switching module of the energy management control device is connected to at least one Internet, and the Internet is connected to at least one remote monitoring station to enable the power conversion switching module. The group is remotely monitored by the remote monitoring station through the Internet.

In the above multifunctional electric power energy supply system of the present invention, the power conversion switching module of the energy management control device is connected to at least one charging post power output unit, and the charging post power output unit is connected to at least one electric vehicle charging post to pass through The charging column power output unit outputs charging power to the electric vehicle charging column.

In the above-mentioned multi-functional power energy supply system of the present invention, the AC power conversion module of the energy management control device is provided with at least one power output terminal, and the power output terminal is connected to a micro-grid to provide AC power through the power output terminal. To the microgrid.

In the above-mentioned multifunctional power energy supply system of the present invention, the AC power conversion module of the energy management control device is provided with at least one power output terminal, the power output terminal is connected to a smart meter, and the smart meter is connected to a mains power supply. The power distribution network outputs AC power through the power output terminal to resell power to the mains power distribution network.

In the above-mentioned multi-functional power energy supply system of the present invention, the power input end of the AC power conversion module of the energy management control device is connected to at least one green power source for the green power source input to be connected in parallel.

The function of the multifunctional electric power energy supply system of the present invention is that the structure of the fuel cell power generation device is simplified and convenient to operate and does not occupy the area of the installation site, and is matched with an energy management control device that can be automatically operated and remotely monitored. Provide at least one battery exchange cabinet with stable and normal power supply for a long time, and it will not be affected by mains power failure or unpredicted power failure. It can maintain the charging and exchange operation stability of the battery exchange cabinet, which can greatly reduce the battery exchange cabinet. Risk of loss and inconvenience caused by the mains power supply shutting down without warning. In addition, the fuel cell power generation device is a low-pollution and high-stability green energy power generation energy source, which can maintain the effectiveness of green energy and environmental protection. another On the one hand, the fuel cell power generation device can be switched to a low-capacity charging of 30% to 40% of the battery exchange cabinet under the control of the energy management control device during the low-volume battery exchange period of the battery exchange cabinet during non-peak or night hours. The excess power generated by the fuel cell power generation device is provided to the power load micro-grid such as a gas station, a supermarket or a passenger service center for power supply, or the power is sold back to a commercial power generator. Green energy's environmental protection benefits are brought to the extreme. In addition, the gas source input end of the fuel cell power generation device can be connected with at least one micro gasification device, such as LNG tanker, to supplement the liquid natural gas by mobile, and the micro gasification device can be used to provide natural gas source for gasification operation. By giving the fuel cell power generation device, the multifunctional power energy supply system of the present invention can be widely installed in remote areas where LNG tank cars can be carried on board, and the number of battery exchange cabinets can be greatly increased and the locations can be set. Popularization and expansion. In addition, when the fuel cell power generation device fails or is repaired, the energy management control device can switch the mains power supply to a temporary backup power supply to provide the battery exchange cabinet continuously and for a long time. The required charging power source can further ensure the use stability and non-stop guarantee of the battery exchange cabinet, and further, the battery exchange cabinets connected to the energy management control device can also pass through the battery exchange cabinet. The energy management control device replaces the battery that has been idle for a long time according to the frequency and use status of the battery Switching control through the energy management control device allows the battery exchange cabinet that has been idle for a long time or has a low battery charging efficiency to be reversed into a DC backup power source, which can be powered off during the fuel cell power generation device and the mains power failure or the microgrid load When the power supply is tight, power is provided to the energy management control device as a backup charging power source for other battery exchange cabinets or as a backup power supply source for the microgrid electrical load at the installation site, which can greatly enhance its industrial utilization efficiency. And industrial utilization value, and then constitute a system that can provide multi-purpose use and power energy supply.

100‧‧‧Multi-functional power energy supply system

10‧‧‧ Natural Gas Source

20‧‧‧ Fuel cell power generation device

21‧‧‧Air source input

22‧‧‧Power output

23‧‧‧Mini Gasification Device

231‧‧‧ Liquid Natural Gas Source

30‧‧‧Energy management control device

31‧‧‧Power input

32‧‧‧Power output

32A‧‧‧Power output

32B‧‧‧Power output

33‧‧‧ Output Power

33A‧‧‧ Output Power

33B‧‧‧ Output Power

34‧‧‧Power Conversion Switching Module

341‧‧‧Internet

342‧‧‧Remote monitoring station

35‧‧‧AC power conversion module

351‧‧‧Power input terminal

352‧‧‧Power input terminal

353‧‧‧Power output

354‧‧‧Power output

355‧‧‧ Smart Meter

36‧‧‧ Charging power output / input device

36A‧‧‧Charge power output / input device

36B‧‧‧Charge power output / input device

37‧‧‧Charging post power output unit

371‧‧‧ Electric Vehicle Charging Post

200‧‧‧ city power supply

210‧‧‧ city power distribution network

300‧‧‧Green Power

400‧‧‧microgrid

500‧‧‧ electric vehicles

40‧‧‧Battery exchange cabinet

40A‧‧‧Battery exchange cabinet

40B‧‧‧Battery exchange cabinet

231‧‧‧ Liquid Natural Gas

600‧‧‧ electric vehicles

The first diagram is a block diagram of a multifunctional power energy supply system according to the first embodiment of the present invention; the second diagram is a diagram of the second embodiment of the multifunctional power energy supply system of the present invention; the third diagram is a multifunction of the multifunctional power energy supply system of the present invention; The third embodiment of the electric energy supply system; the fourth diagram is the reverse of the electricity between the battery exchange cabinets in the third diagram to form a backup power supply Schematic diagram; the fifth diagram is the application diagram of the electric vehicle charging column in the third diagram.

Please refer to the first figure, which is the first implementation of the multifunctional electric energy supply system 100 of the present invention, wherein the multifunctional electric energy supply system 100 includes at least one natural gas source 10, and the type of the electric gas source 10 Without limitation, in the present invention, a series of natural gas storage tanks at a gas station are taken as examples. Other equivalent natural gas supply pipelines, agricultural biogas anaerobic tanks, and other natural gas sources do not depart from the scope of the present invention.

At least one fuel cell power generation device 20 is not limited in its installation location. In the present invention, the fuel cell power generation device 20 is provided at least one gas source input terminal 21 and a gas station with a natural gas filling function. At least one power output terminal 22, the gas source input terminal 21 is connected to the natural gas source 10, so that the power output terminal 22 of the fuel cell power generation device 20 outputs power, and the type of the fuel cell power generation device 20 is not limited. In the present invention, The series takes the BlueGen series of solid oxide fuel cell (SOFC) produced by Australian company Ceramic Fuel Cells (referred to as CFCL) as an example. The power output terminal 22 can output a DC power source.

At least one energy management control device 30 is provided with at least one power input terminal 31 and at least one power output terminal 32. The power input terminal 31 is connected to the power output terminal 22 of the fuel cell power generation device 20 to obtain the fuel cell power generation device 20. The power generation power output from the power output terminal 22 is controlled by the energy management control device 30 to be converted into at least one output power 33 and then output by the power output terminal 32 of the energy management control device 30.

At least one battery exchange cabinet 40 is connected to the output power 33 output from the power output terminal 32 of the energy management control device 30 to provide the battery exchange cabinet 40 as a power source for battery charging. The type of the battery exchange cabinet 40 is not limited. In the series of the present invention, the battery exchange cabinet 40 whose input DC power source is the charging source is taken as an example.

Please cooperate with the second figure as shown in the second embodiment of the multi-functional electrical energy supply system 100 of the present invention, in which the gas source input terminal 21 of the fuel cell power generation device 20 is shown connected to at least one micro gasification device 23, The micro gasification device 23 is connected to at least one liquid natural gas source 231. The liquid natural gas source 231 is used to input liquid natural gas 231A to the micro-gasification device 23 to gasify the natural gas and input it to the gas source input terminal 21 of the fuel cell power generation device 20. The type of the liquid natural gas source 231 is not limited. In the present invention, a series of liquid natural gas tank trucks are used as an example, and other liquid natural gas storage tanks such as equivalent liquid tanks can also be used.

The type of the above-mentioned energy management control device 30 is not limited. In the present invention, the series includes at least one power conversion switching module 34, at least one AC power conversion module 35, and at least one charging power output / input device 36. The power conversion switching module 34 is connected to the power input terminal 31 of the energy management control device 30 to input the power generation power output from the power output terminal 22 of the fuel cell power generation device 20 and is converted into at least one output power supply 33 for switching. Output, the AC power conversion module 35 can convert AC power to DC power input or convert DC power to AC power output, and is connected to the power conversion switching module. The AC power conversion module 35 is provided with at least one power input. Terminal 351, the power input terminal 351 is connected to at least one mains power supply 200, so as to be controlled by the power conversion switching module 35 to convert the mains power 200 into a DC power supply and input the power conversion switching module 34 to make the mains power 200 A backup power source for charging the battery exchange cabinet 40 is formed.

The charging power output / input device 36 is connected to the power conversion switching module 34 and the power output terminal 32 of the energy management control device 30 so as to be controlled by the power conversion switching module 34 to output the output power 33 to the battery exchange. Cabinet 40, or the battery exchange cabinet 40 reversely passes the battery power through the power output terminal 32 into the power conversion switching module 34 through the charging power output / input device 36, so that the battery exchange cabinet 40 reversely forms the fuel A backup power source for the battery power generating device 20.

Please refer to the third figure again, which is the third embodiment of the multi-functional power energy supply system 100 according to the present invention. The power conversion switching module 34 is shown to be connected to at least one Internet 341, and the Internet 341 is connected. At least one remote monitoring station 342 for remote monitoring by the remote monitoring station 342 through the Internet 341. The AC power conversion module 35 is provided with at least one power input terminal 352, power output terminals 353 and 354. The power input terminal 352 is connected to at least one green energy power source 300. The type of the green energy power source 300 is not limited, and may be constituted by a green energy source such as a solar panel or a wind turbine to form the energy management control device 30 for the battery exchange cabinet. 40's another backup power supply.

The power output terminal 353 of the AC power conversion module 35 is connected to a micro grid 400 to provide AC power to the micro grid 400 through the power output terminal 353. The type of the micro grid 400 is not limited. For example, if the power load network of the station is installed at the gas station, other power load networks of the station at the passenger service center of the supermarket or scenic area are also applicable.

In addition, another power output terminal 354 of the AC power conversion module 35 is connected to a smart meter 355, and the smart meter 355 is connected to a mains power distribution network 210 to output AC power for resale through the power output terminal 354 The timing at which electricity is supplied to the generator of the utility power source 200, and the power output terminals 353 and 354 output AC power to the microgrid 400 or to resell electricity to the utility power distribution network 210 of the generator of the utility power source 200, is This control mode can be based on the fact that the battery exchange cabinet 40 is in a non-peak or low battery exchange rate period at night, or that the cost of electricity purchased by the power generator of the commercial power source 200 per degree is greater than the cost of electricity generated by the fuel cell power generation device 20 with natural gas source 10. Control software or program is written into the power conversion switching module 34 in advance, or the remote monitoring station 342 remotely controls the power conversion switching module 34 through the Internet 341 to charge the battery exchange cabinet 40 The power supply load is reduced to 30% ~ 40%, and the excess power is controlled by the power conversion switching module 34 to execute the power output to the AC power conversion module 35. Grid 400 or mains power distribution network 210.

The above-mentioned power conversion switching module 34 is further connected to a plurality of charging power output / input devices 36A and 36B. The charging power output / input devices 36A and 36B are respectively connected to a power output terminal 32A and 32B to be converted into an output power 33A. And 33B, and the power output terminals 32A and 32B are connected to the battery exchange cabinets 40A and 40B, respectively, and the battery exchange cabinets 40, 40A, and 40B represent exchange cabinets with different battery charging power specifications, and the output power supplies 33, 33A, and 33B is a charging power source corresponding to the battery exchange cabinets 40, 40A, and 40B of different charging power specifications. In other words, the power conversion switching module 34 can control the charging of multiple battery exchange cabinets 40, 40A, and 40B of different charging power specifications. Or control to switch at least one of the battery exchange cabinets 40, 40A or 40B as a backup power source and reversely pass through at least one of the power output terminals 32, 32A or 32B via the charging power output / input device 36, 36A or 36B At least one of them supplies power to the power conversion switching module 34 to form a redundant power supply. The detailed operation situation will be shown in the fourth figure below.

Please cooperate with the fourth figure as an example to illustrate the reverse formation between the battery exchange cabinets 40 and 40A in the third diagram as a backup power source. The battery exchange cabinet 40A is assumed to have a low battery exchange rate and The non-priority exchange of the old battery exchange cabinet 40A with poor battery charging efficiency is assumed to be a preferential exchange of the new battery exchange cabinet 40 with a higher exchange frequency and a higher battery charging efficiency. The power conversion switching module 34 of the energy management control device 30 switches the state of the charging power output / input device 36A corresponding to the battery exchange cabinet 40A to a reverse power input state, and the battery exchange cabinet 40A is now formed as a The large DC battery power passes through the corresponding power output terminal 32A in reverse and then provides backup power to the power conversion switching module 34 of the energy management control device 30 through the charging power output / input device 36A, so that the power can be switched. Module 34 receives additional backup power to support other new battery exchange cabinets 40 with higher switching frequency and higher battery charging efficiency, or in the fuel cell When the electric device 20 and the mains power supply 200 fail to stop power supply, or when the load of the microgrid 400 is tight, the backup power of the battery exchange cabinet 40A can be provided to the microgrid 400 at the installation site, and the other battery exchange cabinets mentioned above are used. 40 and 40B can also provide emergency backup power to the micro-grid 400 in this way, so that each of the battery exchange cabinets 40, 40A or 40B of the present invention can be fully switched and used efficiently.

Please refer to FIG. 5 again, the power conversion switching module 34 of the energy management control device 30 in the present invention is connected to at least one charging post power output unit 37, and the charging post power output unit 37 is connected to at least one electric vehicle charging post 371 to output charging power to the electric vehicle charging post 371 through the charging post power output unit 371. The charging power of the electric vehicle charging post 371 can be DC power or AC power, which can be seen as different types of vehicles installed at the gas station. It can be divided into different lanes to provide on-site charging for a plurality of electric vehicles 500 and 600. The electric vehicle charging column 371 is used for the instant charging operation of each electric vehicle 500 and electric vehicle 600, which generates electricity at the fuel cell. The device 20 and the mains power supply 200 are both emergency backup power supply methods when the power supply is stopped, and can also be compared with each of the above battery exchange cabinets 40, 40A, or 40B through the power conversion control module 30 of the energy management control device 30. The operation can obtain the charging power supply without any interruption of charging.

The above-mentioned first to fifth figures of the multifunctional electric energy supply system 100 of the present invention, the relevant descriptions and drawings disclosed therein are only for the convenience of explaining the technology of the present invention. The content and technical means, one of the disclosed preferred embodiments, do not limit its scope, and any modification of the detailed structure of the present invention or the equivalent substitution of elements without departing from the creative spirit and scope of the present invention, Its scope will be defined by the following patent application scope.

Claims (14)

A multifunctional electric power energy supply system includes: at least one natural gas source; at least one fuel cell power generation device provided with at least one gas source input end and at least one electric power output end, the gas source input end is connected to the natural gas source so that The power output end of the fuel cell power generation device outputs power; at least one energy management control device is provided with at least one power input end and at least one power output end, and the power input end is connected to the power output end of the fuel cell power generation device to obtain The power generation power output from the power output end of the fuel cell power generation device is controlled by the energy management control device to be converted into at least one output power, and then output by the power output end of the energy management control device; and at least one battery exchange cabinet, connected The output power output from the power output terminal of the energy management control device is provided to the battery exchange cabinet as a battery charging power source. The multifunctional electric energy supply system according to item 1 of the scope of patent application, wherein the natural gas source is formed by at least one natural gas storage tank of a gas station. The multifunctional electric energy supply system according to item 1 of the scope of patent application, wherein the natural gas source is composed of at least one natural gas supply pipeline. The multifunctional electric energy supply system according to item 1 of the scope of patent application, wherein the gas source input end of the fuel cell power generation device is connected to at least one micro gasification device, and the micro gasification device is connected to at least one liquid natural gas source (LNG SOURCE): The liquid natural gas source is used to input liquid natural gas to the micro-gasification device to gasify the natural gas, and then enter the gas source input terminal of the fuel cell power generation device. The multifunctional electric power energy supply system according to item 4 of the scope of patent application, wherein the liquid natural gas source is constituted by a liquid natural gas tank truck. The multifunctional electric energy supply system according to item 4 of the scope of patent application, wherein the liquid natural gas source is constituted by a liquid natural gas storage tank. The multi-functional power energy supply system according to item 1 of the scope of the patent application, wherein the power output from the power output terminal of the fuel cell power generation device is a DC power source. The multifunctional power energy supply system according to item 1 of the scope of patent application, wherein the energy management control device includes: at least one power conversion switching module connected to the power input terminal to input the power of the fuel cell power generation device The power output from the output end is converted into at least one output power switching output; at least one AC power conversion module, which can convert AC power to DC power input or convert DC power to AC power output function, and connect The power conversion switching module, the AC power conversion module is provided with at least one power input terminal, and the power input terminal is connected to at least one mains power supply, so as to be controlled by the power conversion switching module to convert the mains power to a DC power supply. Input into the power conversion switching module; and at least one charging power output / input device connected to the power conversion switching module and the power output terminal of the energy management control device to output the charging power under the control of the power conversion switching module. To the battery exchange cabinet, or reverse the battery power through the battery exchange cabinet Power output of the charged power output / input device of the switching power conversion module. According to the multifunctional electric power energy supply system described in item 8 of the scope of patent application, wherein the power conversion switching module of the energy management control device is connected to at least one Internet, and the Internet is connected to at least one remote monitoring station, The power conversion switching module is remotely monitored by the remote monitoring station through the Internet. The multifunctional electric energy supply system according to item 8 of the patent application, wherein the power conversion switching module of the energy management control device is connected to at least one charging post power output unit, and the charging post power output unit is connected to at least one electric vehicle. The charging post outputs the charging power to the electric vehicle charging post through the charging post power output unit. According to the multifunctional electric power energy supply system described in the patent application item 8, wherein the AC power conversion module of the energy management control device is provided with at least one power output terminal, the power output terminal is connected to a micro-grid to pass through the The power output provides AC power to the microgrid. The multi-functional power energy supply system described in item 8 of the scope of patent application, wherein the power input end of the AC power conversion module of the energy management control device is connected to at least one green power source for the green power source input to be connected in parallel. . A multifunctional power energy supply system includes: at least one natural gas source; At least one fuel cell power generation device is provided with at least one gas source input end and at least one power output end, the gas source input end is connected to the natural gas source so that the power output end of the fuel cell power generation device outputs power; at least one energy management The control device is provided with at least one power input terminal and at least one power output terminal. The energy management control device further includes at least one power conversion switching module, at least one AC power conversion module, and at least one charging power output / input device. The power conversion switching module is connected to the power input terminal to input the power output from the power output terminal of the fuel cell power generation device and is converted into at least one output power switching output. The AC power conversion module can convert the AC power into DC power input or DC conversion AC power output function, and connected to the power conversion switching module, the AC power conversion module is provided with at least one power output terminal, the power output terminal is connected to a smart meter, and the smart meter is connected To a mains power supply distribution network to sell AC power through the power output to resell electricity Power to the mains power distribution network and the charging power output / input device, connect the power conversion switching module and the power output terminal of the energy management control device to output an output under the control of the power conversion switching module The power source and at least one battery exchange cabinet are connected to the output power output from the power output terminal of the energy management control device to provide the battery exchange cabinet as a battery charging power source. A multifunctional electric power energy supply system includes: at least one natural gas source; at least one fuel cell power generation device provided with at least one gas source input end and at least one electric power output end, the gas source input end is connected to the natural gas source so that The power output terminal of the fuel cell power generation device outputs power; at least one energy management control device is provided with at least one power input terminal and at least one power output terminal. The energy management control device further includes at least one power conversion switching module, at least one AC power conversion module and at least one charging power output / input device, the power conversion switching module is connected to the power input terminal to input the power output from the power output terminal of the fuel cell power generation device and is converted into at least one output power Switching output. The AC power conversion module can convert the AC power into a DC power input or convert the DC power to an AC power output function, and is connected to the power conversion switching module. The AC power conversion module is provided with at least one power supply. The power output terminal is connected to a micro-grid to provide AC power to the micro-grid through the power output, and the charging power output / input device is connected to the power conversion switching module and the energy management control device. The power output terminal outputs an output power under the control of the power conversion switching module, or inputs power to the power conversion switching module through the power output terminal of the energy management control device through the charging power output / input device in the reverse direction, And at least one battery exchange cabinet, which is connected to the output power output from the power output terminal of the energy management control device to provide the battery exchange cabinet as a battery charging power source, and the power conversion control module can be switched by the power management control device The charging power output / input device is controlled to reversely input the power of the battery exchange cabinet through the power output terminal of the energy management control device through the charging power output / input device to the power conversion switching module as a backup power source.