Energy storage emergency power supply system carrying fuel cell

Abstract

The utility model provides an energy storage emergency power supply system carrying a fuel cell, comprising a fuel cell, a cell energy storage module, a first PCS inversion module, a second PCS inversion module, a first DC / DC conversion module, a second DC / DC conversion module and an energy management module, the fuel cell is respectively in circuit connection with the first PCS inversion module and the first DC / DC conversion module, and the cell energy storage module is in circuit connection with the second PCS inversion module and the second DC / DC conversion module. The battery energy storage module is respectively in circuit connection with the first DC / DC conversion module, the second DC / DC conversion module and the second PCS inversion module, the battery energy storage module is in communication connection with the fuel battery, and the energy management module is respectively in communication connection with the first PCS inversion module, the second PCS inversion module, the first DC / DC conversion module, the second DC / DC conversion module and the fuel battery. The self-generating and self-using functions of the energy storage emergency power supply system can be realized based on self-generating of the fuel cell, self-charging and electricity storage of the cell energy storage module and alternating current and direct current hybrid conversion between the PCS inversion module and the DC / DC conversion module, and redundant electric energy can be stored.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of power supply especially relates to a kind of energy storage emergency power supply system of carrying fuel cell. BACKGROUND

[0002] With the maturity of energy storage technology and emergency power supply technology and the rapid development of renewable energy, the emergency power supply system using renewable energy has become the focus of attention.In recent years, battery energy storage emergency power supply system has been widely used and developed, such as diesel emergency power supply, PCS emergency power supply equipped with power battery, charging power supply equipped with power battery and other emergency power supply systems with various functions.And it is widely used, which solves many scenes without power supply, insufficient power supply and temporary power supply, such as charging station, emergency repair, mountainous area, island, exhibition, power failure and power supply requirements in disaster relief environment.

[0003] However, in the existing emergency power supply system, it is often impossible to generate and use electricity on its own and store excess electricity, thus it is impossible to solve the problem of power capacity increase in power shortage areas, and the existing emergency power supply system also needs to rely on additional power resources to detect and protect emergency power supply of load in real time, thus it cannot be completely off-grid, reducing the independence and mobility of emergency power supply system. UTILITY MODEL CONTENT

[0004] The utility model aims to solve one of the technical problems in the prior art, provide an energy storage emergency power supply system carrying fuel cell, which can generate electricity based on fuel cell, charge and store electricity based on battery energy storage module, and realize the function of self-generation and self-use of energy storage emergency power supply system through AC / DC hybrid conversion between PCS inverter module and DC / DC conversion module, and can also store excess electricity, and can detect and protect emergency power supply of load without relying on additional power resources, improving the independence and mobility of energy storage emergency power supply system.

[0005] To achieve the above purpose, the utility model embodiment proposes an energy storage emergency power supply system carrying fuel cell, comprising:

[0006] Fuel cell, fuel cell is used for generating electricity to supply energy to load;

[0007] Battery energy storage module, battery energy storage module is in communication connection with fuel cell, and battery energy storage module is used for load energy supply or storing power generation energy of fuel cell;

[0008] First PCS inverter module and second PCS inverter module, first PCS inverter module and second PCS inverter module are used for converting direct current into alternating current suitable for load;

[0009] a first DC / DC conversion module for converting direct current generated by the fuel cell into direct current suitable for the load, and a second DC / DC conversion module for converting direct current generated by the fuel cell into direct current suitable for the battery energy storage module or direct current suitable for the load;

[0010] an energy management module for performing power supply management on the fuel cell or the battery energy storage module;

[0011] The fuel cell is respectively connected with the first PCS inverter module and the first DC / DC conversion module in circuit.

[0012] The fuel cell is respectively connected with the first PCS inverter module and the first DC / DC conversion module in circuit, and the battery energy storage module is respectively connected with the first DC / DC conversion module, the second DC / DC conversion module and the second PCS inverter module in circuit.

[0013] The energy management module is respectively connected with the first PCS inverter module, the second PCS inverter module, the first DC / DC conversion module, the second DC / DC conversion module and the fuel cell in communication.

[0014] Further, in some embodiments, the energy storage emergency power supply system further comprises:

[0015] a first DC / DC boost module connected in series between the fuel cell and the first PCS inverter module, and connected with the energy management module in communication;

[0016] a second DC / DC boost module connected in series between the fuel cell and the first DC / DC conversion module, and connected with the energy management module in communication

[0017] The first DC / DC boost module and the second DC / DC boost module are both used for boosting direct current generated by the fuel cell.

[0018] Further, in some embodiments, the energy storage emergency power supply system further comprises:

[0019] a first control switch connected in series between the fuel cell and the first DC / DC boost module;

[0020] a second control switch connected in series between the fuel cell and the second DC / DC boost module;

[0021] a third control switch connected in series between the first DC / DC boost module and the first PCS inverter module;

[0022] A fourth control switch is connected in series between the second DC / DC boost module and the first DC / DC conversion module.

[0023] Further, in some embodiments, the energy storage emergency power supply system further comprises:

[0024] A fifth control switch is connected in series between the battery energy storage module and the second DC / DC conversion module.

[0025] A sixth control switch is connected in series between the battery energy storage module and the second PCS inverter module.

[0026] A seventh control switch is connected in series between the battery energy storage module and the first DC / DC conversion module.

[0027] Further, in some embodiments, the energy storage emergency power supply system further comprises:

[0028] A low-voltage auxiliary power supply is connected in circuit with the first PCS inverter module, and is connected in communication with the energy management module, and is used to keep the voltage of the energy storage emergency power supply system constant.

[0029] Further, in some embodiments, the energy storage emergency power supply system further comprises:

[0030] An eighth control switch is connected in series between the first PCS inverter module and the low-voltage auxiliary power supply.

[0031] Further, in some embodiments, the energy storage emergency power supply system further comprises:

[0032] A first AC power supply module is connected in circuit with the first PCS inverter module, and is connected in communication with the energy management module.

[0033] A second AC power supply module is connected in circuit with the second PCS inverter module, and is connected in communication with the energy management module.

[0034] A first DC power supply module is connected in circuit with the first DC / DC conversion module, and is connected in communication with the energy management module.

[0035] A second DC power supply module is connected in circuit with the second DC / DC conversion module, and is connected in communication with the energy management module.

[0036] The first AC power supply module, the second AC power supply module, the first DC power supply module, and the second DC power supply module are all used as power supply ports for loads.

[0037] Further, in some embodiments, the energy storage emergency power supply system further comprises:

[0038] a ninth control switch, the ninth control switch being connected in series between the fuel cell and the first DC / DC boost module;

[0039] a tenth control switch, the tenth control switch being connected in series between the fuel cell and the second DC / DC boost module;

[0040] an eleventh control switch, the eleventh control switch being connected in series between the first DC / DC boost module and the first PCS inverter module;

[0041] a twelfth control switch, the twelfth control switch being connected in series between the second DC / DC boost module and the first DC / DC conversion module.

[0042] Further, in some embodiments, the energy storage emergency power supply system further comprises:

[0043] a battery management module, the battery management module being used for real-time operation detection of the fuel cell and the battery energy storage module, and the battery management module being communicatively connected between the fuel cell and the energy management module.

[0044] Further, in some embodiments, the energy storage emergency power supply system further comprises:

[0045] a detection management platform, the detection management platform being communicatively connected with the energy management module, and the detection management platform being used as an operation terminal of the energy management module;

[0046] a detection display, the detection display being communicatively connected with the energy management module, and the detection display being used for displaying internal data of the energy management module.

[0047] The energy storage emergency power supply system according to some embodiments of the present application has the following beneficial effects: the fuel cell, the battery energy storage module, the first PCS inverter module, the second PCS inverter module, the first DC / DC conversion module, the second DC / DC conversion module and the energy management module are arranged, the fuel cell is connected with the first PCS inverter module and the first DC / DC conversion module in circuit, the battery energy storage module is connected with the first DC / DC conversion module, the second DC / DC conversion module and the second PCS inverter module in circuit, the battery energy storage module is connected with the fuel cell in communication, the energy management module is connected with the first PCS inverter module, the second PCS inverter module, the first DC / DC conversion module, the second DC / DC conversion module and the fuel cell in communication, the self-power generation of the fuel cell, the self-charging of the battery energy storage module and the AC / DC hybrid conversion between the PCS inverter module and the DC / DC conversion module are combined, the self-power generation and self-use function of the energy storage emergency power supply system is realized, the excess power can be stored, the emergency power supply detection and protection of the load can be realized without relying on additional power resources, and the independence and mobility of the emergency power supply system are improved.

[0048] Other features and advantages of the present application will be set forth in the following description of the application, and in part will become apparent to those skilled in the art upon examination of the following or can be learned by practice of the application. The objects and other advantages of the application can be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings. BRIEF DESCRIPTION OF DRAWINGS

[0049] The accompanying drawings are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and serve to explain the principles of the application, and should not be considered limiting of the application's scope.

[0050] The present application will be further described by reference to the following drawings and embodiments.

[0051] Figure 1 is the overall framework diagram of the energy storage emergency power supply system according to some embodiments of the present application.

[0052] Reference numerals: Energy storage emergency power system 100, fuel cell 101, battery energy storage module 102, first PCS inverter module 103, second PCS inverter module 104, first DC / DC converter module 105, second DC / DC converter module 106, energy management module 107, first DC / DC boost module 108, second DC / DC boost module 109, low-voltage auxiliary power supply 110, first AC power supply module 111, second AC power supply module 112, first DC power supply module 113, second DC power supply module 114, battery management module 115, detection management platform 116, detection display 117;

[0053] First control switch QF1, second control switch QF2, third control switch QF3, fourth control switch QF4, fifth control switch QF5, sixth control switch QF6, seventh control switch QF7, eighth control switch QF8, ninth control switch QF9, tenth control switch QF10, eleventh control switch QF11, twelfth control switch QF12. Detailed Implementation

[0054] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0055] In the description of this utility model, the use of "first" and "second" is for the purpose of distinguishing technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the order of the indicated technical features. It should be understood that such data can be interchanged where appropriate so that the embodiments of the utility model described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0056] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0057] In the existing emergency power supply system, it is often unable to generate electricity for self-use and store the excess power, thereby unable to solve the problem of power capacity increase in power shortage areas, and the existing emergency power supply system also needs to rely on additional power resources to detect and protect the emergency power supply of the load in real time, thereby unable to completely operate off-grid, reducing the independence and mobility of the emergency power supply system.

[0058] Based on this, the utility model embodiment provides a kind of energy storage emergency power supply system of carrying fuel cell, by being equipped with fuel cell, battery energy storage module, first PCS inverter module, second PCS inverter module, first DC / DC conversion module, second DC / DC conversion module and energy management module, wherein, fuel cell is respectively connected with first PCS inverter module, first DC / DC conversion module circuit, battery energy storage module is respectively connected with first DC / DC conversion module, second DC / DC conversion module, second PCS inverter module circuit, battery energy storage module is connected with fuel cell communication, energy management module is respectively connected with first PCS inverter module, second PCS inverter module, first DC / DC conversion module, second DC / DC conversion module and fuel cell communication, it can be based on the self-generation of fuel cell, the self-charging of battery energy storage module and the AC-DC hybrid conversion between PCS inverter module and DC / DC conversion module, realize the self-generation of energy storage emergency power supply system and use function, and still excess power can be stored, simultaneously, it is also unnecessary to rely on additional power resources to realize the emergency power supply detection protection of load, improve the independence and mobility of energy storage emergency power supply system.

[0059] Therefore, the utility model embodiment is further described below with reference to the drawings.

[0060] Referring to Figure 1 As shown in Figure 1The overall framework of the energy storage emergency power supply system carrying a fuel cell is provided by some embodiments of the utility model, and the energy storage emergency power supply system carrying a fuel cell 1000 includes fuel cell 101, battery energy storage module 102, first PCS inverter module 103, second PCS inverter module 104, first DC / DC conversion module 105, second DC / DC conversion module 106 and energy management module 107, wherein fuel cell 101 is connected with first PCS inverter module 103 and first DC / DC conversion module 105 in circuit respectively, battery energy storage module 102 is connected with first DC / DC conversion module 105, second DC / DC conversion module 106 and second PCS inverter module 104 in circuit respectively, battery energy storage module 102 is connected with fuel cell 101 in communication, and energy management module 107 is connected with first PCS inverter module 103, second PCS inverter module 104, first DC / DC conversion module 105, second DC / DC conversion module 106 and fuel cell 101 in communication respectively.

[0061] It should be noted that fuel cell 101 is used for generating electricity to supply energy to the load, battery energy storage module 102 is used for supplying energy to the load or storing the generating energy of fuel cell 101, first PCS inverter module 103 and second PCS inverter module 104 are both used for converting direct current into alternating current suitable for the load, first DC / DC conversion module 105 is used for converting the direct current generated by fuel cell 101 into direct current suitable for the load, second DC / DC conversion module 106 is used for converting the direct current generated by fuel cell 101 into direct current suitable for battery energy storage module 102 or direct current suitable for the load, and based on the self-generating of fuel cell 101, the self-charging of battery energy storage module 102 and the AC / DC hybrid conversion between the PCS inverter module and the DC / DC conversion module, the self-generating and self-using function of the energy storage emergency power supply system 100 can be realized, and the excess electric energy can be stored, at the same time, the load can be supplied with emergency power detection protection without relying on additional power resources, thereby improving the independence and mobility of the emergency power supply system.

[0062] At the same time, the energy storage emergency power supply system 100 adopts intelligent energy management module 107 to accurately and reasonably control the electricity generation of fuel cell 101, the charging and discharging of the energy storage battery, the alternating current load and the direct current load, thereby ensuring the stable operation of the system.

[0063] Among them, the fuel supply of fuel cell 101 is renewable energy, which can provide a high-tech green power supply mode for the energy storage emergency power supply system 100.

[0064] Further, the energy storage emergency power supply system 100 further comprises a first DC / DC boost module 108 and a second DC / DC boost module 109, wherein the first DC / DC boost module 108 is connected in series between the fuel cell 101 and the first PCS inverter module 103, the first DC / DC boost module 108 is connected in communication with the energy management module 107, the second DC / DC boost module 109 is connected in series between the fuel cell 101 and the first DC / DC conversion module 105, and the second DC / DC boost module 109 is connected in communication with the energy management module 107.

[0065] It should be noted that the first DC / DC boost module 108 and the second DC / DC boost module 109 are both used to boost the direct current voltage generated by the fuel cell 101.

[0066] Further, the energy storage emergency power supply system 100 further comprises a first control switch QF1, a second control switch QF2, a third control switch QF3, and a fourth control switch QF4, a fifth control switch QF5, a sixth control switch QF6, and a seventh control switch QF7.

[0067] Among them, the first control switch QF1 is connected in series between the fuel cell 101 and the first DC / DC boost module 108, the second control switch QF2 is connected in series between the fuel cell 101 and the second DC / DC boost module 109, the third control switch QF3 is connected in series between the first DC / DC boost module 108 and the first PCS inverter module 103, the fourth control switch QF4 is connected in series between the second DC / DC boost module 109 and the first DC / DC conversion module 105, the fifth control switch QF5 is connected in series between the battery energy storage module 102 and the second DC / DC conversion module 106, the sixth control switch QF6 is connected in series between the battery energy storage module 102 and the second PCS inverter module 104, and the seventh control switch QF7 is connected in series between the battery energy storage module 102 and the first DC / DC conversion module 105.

[0068] Further, the energy storage emergency power supply system 100 further comprises a low-voltage auxiliary power supply 110 and an eighth control switch QF8, the low-voltage auxiliary power supply 110 is used to keep the voltage of the energy storage emergency power supply system 100 constant, the low-voltage auxiliary power supply 110 is connected in circuit with the first PCS inverter module 103, the low-voltage auxiliary power supply 110 is connected in communication with the energy management module 107, and the eighth control switch QF8 is connected in series between the first PCS inverter module 103 and the low-voltage auxiliary power supply 110.

[0069] It should be noted that when the energy storage emergency power supply system 100 is idle, if the battery energy storage module 102 is insufficient, the fuel cell 101 will generate electricity to supply power, and then through the closing of the first control switch QF1, the second control switch QF2, the third control switch QF3, the fourth control switch QF4, the seventh control switch QF7, the eighth control switch QF8, and through the control of the second DC / DC boost module 109 and the first DC / DC conversion module 105 to work to charge the battery energy storage module 102, when the battery energy storage module 102 is full, the seventh control switch QF7 is disconnected, at this time, the energy storage emergency power supply system 100 is in standby state.

[0070] Further, the energy storage emergency power supply system 100 further comprises a first AC power supply module 111, a second AC power supply module 112, a first DC power supply module 113 and a second DC power supply module 114, wherein the first AC power supply module 111 is connected with the first PCS inverter module 103 in circuit, the second AC power supply module 112 is connected with the second PCS inverter module 104 in circuit, the first DC power supply module 113 is connected with the first DC / DC conversion module 105 in circuit, and the second DC power supply module 114 is connected with the second DC / DC conversion module 106 in circuit, and the energy management module 107 is connected with the first AC power supply module 111, the second AC power supply module 112, the first DC power supply module 113 and the second DC power supply module 114 in communication.

[0071] Among them, the first AC power supply module 111, the second AC power supply module 112, the first DC power supply module 113 and the second DC power supply module 114 are used as power supply ports of the load.

[0072] Further, in some embodiments, the energy storage emergency power supply system 100 further comprises a ninth control switch QF9, a tenth control switch QF10, an eleventh control switch QF11 and a twelfth control switch QF12, wherein the ninth control switch QF9 is connected in series between the fuel cell 101 and the first DC / DC boost module 108, the tenth control switch QF10 is connected in series between the fuel cell 101 and the second DC / DC boost module 109, the eleventh control switch QF11 is connected in series between the first DC / DC boost module 108 and the first PCS inverter module 103, and the twelfth control switch QF12 is connected in series between the second DC / DC boost module 109 and the first DC / DC conversion module 105.

[0073] It should be noted that when the AC load needs to work and the load demand is small, and the DC load is in an idle state, the first control switch QF1, the third control switch QF3, the eighth control switch QF8 and the ninth control switch QF9 are closed, and then the fuel cell 101 generates power and supplies power to the required AC load through the first DC / DC boost module 108 and the first PCS inverter module 103. When the AC load demand increases, the fuel cell 101 is insufficient to meet the load requirement, at which time the sixth control switch QF6 and the eleventh control switch QF11 are closed, and then the energy storage battery is started to discharge and the second PCS inverter module 104 is controlled to work, so as to increase the power supply capacity of the AC load.

[0074] It should be noted that when the DC load needs to work and the load demand is small, and the AC load is in an idle state, the capacity management module closes the second control switch QF2, the fourth control switch QF4, the eighth control switch QF8 and the tenth control switch QF10, and then the fuel cell 101 generates power and supplies power to the required DC load through the second DC / DC boost module 109 and the second PCS inverter module 104. When the AC load demand increases, the fuel cell 101 is insufficient to meet the load requirement, at which time the seventh control switch QF7 and the twelfth control switch QF12 are closed, and then the energy storage battery is started to discharge and the second DC / DC conversion module 106 is controlled to work, so as to increase the power supply capacity of the DC load.

[0075] It should be further noted that when the application scenario is to simultaneously require AC and DC power supply, the capacity management module closes the first control switch QF1, the second control switch QF2, the third control switch QF3, the fourth control switch QF4, the eighth control switch QF8, the ninth control switch QF9 and the tenth control switch QF10, the fuel cell 101 generates power and is boosted through the first DC / DC boost module 108 and the second DC / DC boost module 109, and then AC power supply and DC power supply are simultaneously provided through the first PCS inverter module 103 and the first DC / DC conversion module 105.

[0076] Since the fuel cell 101 has small power generation and can generate power for a long time, the power generated by the fuel cell 101 is preferentially used for load use. If the power generated by the fuel cell cannot meet the load use, the sixth control switch QF6, the seventh control switch QF7, the eleventh control switch QF11 and the twelfth control switch QF12 are closed in the case that the battery energy storage module 102 has surplus power, and then the battery energy storage module 102 is started to discharge and AC power supply and DC power supply are simultaneously provided for the load through the second PCS inverter module 104 and the second DC / DC conversion module 106.

[0077] Therefore, the whole energy storage emergency power supply system 100 uses the fuel cell 101 as the main energy supply, and uses the battery energy storage module 102 as the energy complement, and continuously provides energy supply to the load requiring power supply at the same time or alternately, thereby improving the energy utilization rate of the energy storage emergency power supply system 100.

[0078] Further, the energy storage emergency power supply system 100 further comprises a battery management module 115, the battery management module 115 is used for real-time operation detection of the fuel cell 101 and the battery energy storage module 102, and the battery management module 115 is communicatively connected between the fuel cell 101 and the energy management module 107.

[0079] It should be noted that, by the battery management module 115 and the energy management module 107, the power generation state of the fuel cell 101 is detected in real time, and the battery operation state is monitored in real time during the charging and discharging process of the battery energy storage module 102, so that the system safety is greatly improved, and the charging and discharging functions of the battery energy storage module 102 can be switched and adjusted according to the load demand.

[0080] Further, the energy storage emergency power supply system 100 further comprises a detection management platform 116, the detection management platform 116 is communicatively connected with the energy management module 107, and the detection management platform 116 is used as an operation terminal of the energy management module 107.

[0081] Further, the energy storage emergency power supply system 100 further comprises a detection display 117, the detection display 117 is communicatively connected with the energy management module 107, and the detection display 117 is used for displaying internal data of the energy management module 107.

[0082] In general, by adopting the emergency power supply technology of the fuel cell 101 and the battery energy storage module 102 of renewable energy, compared with increasing the capacity of the transformer and redeploying the high-power power line, the application has the advantages of obvious low cost and long operation life.

[0083] It should be understood that, in the utility model, "at least one" refers to one or more, and "multiple" refers to two or more than two. And / or is used to describe the association relationship of associated objects, which means that there can be three kinds of relationships, for example, "A and / or B" can mean: only A, only B and A and B exist simultaneously, wherein A and B can be singular or plural. The character " / " generally represents that the associated objects before and after are an "or" relationship. "At least one of the following" or similar expressions means any combination of these items, including any combination of single or multiple items. For example, at least one of a, b or c can mean: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", wherein a, b and c can be single or multiple.

[0084] In several embodiments provided by the utility model, it should be understood that the disclosed system and principle method can be realized by other ways. For example, the system embodiments described above are only illustrative, for example, the division of the above units is only a logical function division, and another division mode can be realized in actual implementation, for example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the displayed or discussed each other can be indirect coupling or communication connection through some interfaces, devices or units, and can be electrical, mechanical or other forms.

[0085] The units described above as separate components can or can not be physically separated, and the components shown as units can or can not be physical units, that is, they can be located in one place, or they can be distributed on multiple network units. According to actual needs, part or all of the units can be selected to realize the purpose of the embodiment scheme.

[0086] In addition, the functional units in each embodiment of the utility model can be integrated in one processing unit, or each unit can exist physically, or two or more units can be integrated in one unit. The integrated unit can be realized in the form of hardware or in the form of software functional unit.

[0087] The integrated unit, if implemented in the form of a software function unit and sold or used as an independent product, can be stored in a computer-readable storage medium. Based on such understanding, the technical solutions of the present application essentially or in other words the part that contributes to the prior art or the whole or part of the technical solutions can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes multiple instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method of each embodiment of the present application.

[0088] The embodiments of the present application are described in detail above in combination with the drawings, but the present application is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present application.

Claims

1. An energy storage emergency power supply system with a fuel cell mounted thereon, characterized by comprising: Comprise: a fuel cell for generating electricity to power a load; a battery energy storage module connected in communication with the fuel cell, the battery energy storage module for powering the load or storing the electricity generated by the fuel cell; a first PCS inverter module and a second PCS inverter module, each for converting direct current into alternating current suitable for the load; a first DC / DC conversion module for converting direct current generated by the fuel cell into direct current suitable for the load, and a second DC / DC conversion module for converting direct current generated by the fuel cell into direct current suitable for the battery energy storage module or direct current suitable for the load; an energy management module for power management of the fuel cell or the battery energy storage module; the fuel cell is connected in circuit with the first PCS inverter module, the first DC / DC conversion module respectively; wherein the fuel cell is connected in circuit with the first PCS inverter module, the first DC / DC conversion module respectively, and the battery energy storage module is connected in circuit with the first DC / DC conversion module, the second DC / DC conversion module, the second PCS inverter module respectively; the energy management module is connected in communication with the first PCS inverter module, the second PCS inverter module, the first DC / DC conversion module, the second DC / DC conversion module and the fuel cell respectively.

2. The energy storage emergency power supply system of claim 1, wherein, Further comprise: a first DC / DC boost module connected in series between the fuel cell and the first PCS inverter module, the first DC / DC boost module being connected in communication with the energy management module; a second DC / DC boost module connected in series between the fuel cell and the first DC / DC conversion module, the second DC / DC boost module being connected in communication with the energy management module; wherein the first DC / DC boost module and the second DC / DC boost module are each for boosting the direct current voltage generated by the fuel cell.

3. The energy storage emergency power supply system of claim 2, wherein, Further comprise: a first control switch connected in series between the fuel cell and the first DC / DC boost module; a second control switch connected in series between the fuel cell and the second DC / DC boost module; a third control switch connected in series between the first DC / DC boost module and the first PCS inverter module; a fourth control switch connected in series between the second DC / DC boost module and the first DC / DC conversion module.

4. The energy storage emergency power supply system of claim 1, wherein, Further comprise: a fifth control switch connected in series between the battery energy storage module and the second DC / DC conversion module; a sixth control switch connected in series between the battery energy storage module and the second PCS inverter module; A seventh control switch is connected in series between the battery energy storage module and the first DC / DC conversion module.

5. The energy storage emergency power supply system of claim 1, wherein, Further comprising: A low-voltage auxiliary power supply connected in circuit with the first PCS inverter module, and in communication with the energy management module, for maintaining a constant voltage of the energy storage emergency power supply system.

6. The energy storage emergency power supply system of claim 5, wherein, Further comprising: An eighth control switch connected in series between the first PCS inverter module and the low-voltage auxiliary power supply.

7. The energy storage emergency power supply system of claim 1, wherein, Further comprising: A first AC power supply module connected in circuit with the first PCS inverter module, and in communication with the energy management module; A second AC power supply module connected in circuit with the second PCS inverter module, and in communication with the energy management module; A first DC power supply module connected in circuit with the first DC / DC conversion module, and in communication with the energy management module; A second DC power supply module connected in circuit with the second DC / DC conversion module, and in communication with the energy management module; The first AC power supply module, the second AC power supply module, the first DC power supply module, and the second DC power supply module are all used as power supply ports of the load.

8. The energy storage emergency power supply system of claim 7, wherein, Further comprising: A ninth control switch connected in series between the fuel cell and the first DC / DC boost module; A tenth control switch connected in series between the fuel cell and the second DC / DC boost module; An eleventh control switch connected in series between the first DC / DC boost module and the first PCS inverter module; A twelfth control switch connected in series between the second DC / DC boost module and the first DC / DC conversion module.

9. The energy storage emergency power supply system of claim 1, wherein, Further comprising: A battery management module for real-time operation detection of the fuel cell and the battery energy storage module, and in communication between the fuel cell and the energy management module.

10. The energy storage emergency power supply system of claim 1, wherein, Further comprising: A detection management platform in communication with the energy management module, and used as an operation terminal of the energy management module; A detection display in communication with the energy management module, and used for displaying internal data of the energy management module.

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