Comprehensive energy control method based on multi-platform hydrogen fuel cell synchronous test

Abstract

The invention discloses a comprehensive energy control method based on a multi-platform hydrogen fuel cell synchronous test, and relates to the technical field of fuel cell system tests, comprising the following steps: inputting a loading and unloading test plan which is predetermined to be performed by each hydrogen fuel cell test board into an upper computer; respectively and correspondingly generating a test time plan curve in (t) of current and time in the upper computer; a test plan curve I (t) of the hydrogen fuel cell testboard is obtained by correcting the deviation value of the current parameters of the same or different hydrogen fuel cell testboards in actual operation; and finally, the test time plan curve of the current and the time of all the hydrogen fuel cell test benches is input to a comprehensive management controller, and a comprehensive energy management task of the multi-platform hydrogen fuel cell synchronous test is executed. Dynamic management of energy is achieved, different working conditions are adapted, and it is guaranteed that testing work is conducted stably.

Description

Technical Field

[0001] The present invention relates to the technical field of fuel cell system testing, and in particular to a comprehensive energy control method based on multi-platform hydrogen fuel cell synchronous testing. Background Art

[0002] Due to the rapid development of hydrogen energy, hydrogen fuel cell test equipment has developed rapidly, and more and more hydrogen fuel cell test laboratories have purchased a large number of test equipment to meet the needs of research and production. Hydrogen fuel cells are currently being used in a variety of application scenarios, including hydrogen fuel cell engines, combined heat and power, mobile backup power supplies, multi-energy complementary platforms, etc. In the face of various different applications of hydrogen energy, R&D personnel are required to conduct targeted testing to match the corresponding performance parameters of the adjustment. Therefore, the comprehensive test of hydrogen fuel cells on multiple platforms is a key test platform for the development of hydrogen energy technology. Since each test equipment needs to be equipped with an electronic load to consume the power of the hydrogen fuel cell test equipment, hydrogen fuel cell test laboratories often face the situation where the maximum power of the electronic load cannot meet the actual needs. Increasing equipment procurement obviously causes redundancy and waste of equipment, which is not conducive to the R&D management of small and medium-sized enterprises. Therefore, an energy management strategy for hydrogen fuel cell system testing is urgently needed to achieve maximum compatibility of multiple test equipment for synchronization and reasonable use of limited electronic load maximum power. In particular, during the synchronous testing of multiple hydrogen fuel cell systems or stacks, multiple hydrogen fuel cell products are loaded at maximum power at the same time, which exceeds the maximum working power of the electronic load and cannot meet the needs of test production.

[0003] Therefore, the present application proposes a control method based on multi-platform comprehensive testing of hydrogen fuel cell systems to meet the needs of research and production. Summary of the invention

[0004] In view of the defects existing in the prior art, the purpose of the present invention is to provide a comprehensive energy control method based on multi-platform hydrogen fuel cell synchronous testing, aiming to solve the technical problems in the related technology to a certain extent.

[0005] In order to achieve the above purpose, the technical solution adopted by the present invention is: The comprehensive energy control method based on multi-platform hydrogen fuel cell synchronous testing includes inputting the load increase and decrease test plan scheduled for each hydrogen fuel cell test station into the host computer, and generating the test time plan curve i of current and time in the host computer respectively. n (t) = A n f An (t)+B n f Bn (t)+C n f Cn (t)+D n , n≥1 and is a positive integer, t is the test time, in (t) is the corresponding output current value of each hydrogen fuel cell during the test process, f An (t) is the first current demand curve, f Bn (t) is the second current demand curve, f Cn (t) is the third current demand curve, A n , B n , C n , D n are the coupling loading correction factors; An (t) is the first current demand curve, f Bn (t) is the second current demand curve, f Cn (t) is the third current demand curve, which represents different types of current demand curves. According to the function and design of the fuel cell system, the fourth, fifth and even nth current demand curves can be added in sequence, and then the final fitting is performed. Taking into account the deviation between actual operation and theoretical calculation, the above values ​​need to be corrected or compensated by empirical values ​​or proportional coefficients, and a certain margin must be maintained.

[0006] Then, by correcting the deviation values ​​of the same or different current parameters of each hydrogen fuel cell test bench in actual operation, the actual total hydrogen fuel cell test bench test plan curve I(t)=α1i1(t)+α2i2(t)+α3i3(t)+...+α n i n (t)+β; α1, α2, α3,...,α n is the current correction coefficient, β is the comprehensive current compensation value; all hydrogen fuel cell test i n (t) is used for comprehensive calculation. Due to the real-time fluctuation and interference of current or power, and the synchronous change of loss, it is necessary to use different α1, α2, α3, ..., α n The current correction coefficient is fitted to the actual value of the total current, and a certain margin must be maintained.

[0007] Finally, the test time plan curves of current and time of all hydrogen fuel cell test benches are input into the integrated management controller, which is responsible for receiving real-time signals and sending various instructions to perform comprehensive energy management tasks for multi-platform hydrogen fuel cell synchronous testing.

[0008] On the basis of the above technical solution, there is also an auxiliary equipment consumption time planning curve i α (t) = A α f Aα (t)+B α f Bα (t)+C α f Cα (t)+D α , Aα , B α , C α , D α are the correction factors for coupling loading of auxiliary equipment, f Aα (t) is the first current demand curve of auxiliary equipment, f Bα (t) is the second current demand curve of auxiliary equipment, f Cα (t) is the third current demand curve of the auxiliary equipment, and the auxiliary equipment consumption time plan curve is input into the integrated management controller. Similarly, the technical solution in this application has multiple auxiliary equipment with different current demands. The fourth, fifth and even nth current demand curves of the auxiliary equipment can be added in sequence according to the auxiliary equipment of the fuel cell system, and then the final fitting is performed and a certain margin must be maintained.

[0009] On the basis of the above technical solution, a combined energy storage device charging and discharging time plan curve is provided as i Battery (t) = A β f Aβ (t)+B β f Bβ (t)+C β f Cβ (t)+D β , A β , B β , C β , D β are the correction factors for the coupling loading of the combined energy storage device, f Aβ (t) is the first current demand curve of the combined energy storage device, f Bβ (t) is the second current demand curve of the combined energy storage device, f Cβ (t) is the third current demand curve of the combined energy storage device, and the charge and discharge time plan curve of the combined energy storage device is input into the integrated management controller. The energy storage device can be composed of one or more types of devices such as lithium batteries, lead-acid batteries, supercapacitors, flow batteries, etc. According to the actual situation, the fourth, fifth and even nth current demand curves of the combined energy storage device can be added in sequence, and then the final fitting is performed, and a certain margin must be maintained.

[0010] On the basis of the above technical solution, it also includes a normal test mode and a peak-shift test mode. The peak-shift test mode is when the current is too large during the test and exceeds the maximum current I of the energy feedback electronic load Mload , by adjusting different fuel cell test benches to perform test tasks separately to achieve continuous testing. The integrated management controller determines the integrated current value I at any time t 综 (t) = I (t) + i α (t)+i Battery (t) Is it less than or equal to the maximum current I of the energy feedback electronic load? Mload, if I 综 (t)≤I Mload If the test is established, the normal test mode is entered, and all test work is completed according to the test time plan curve content in the normal test mode; if I 综 (t)>I Mload , then further determine the comprehensive current value I 综 (t) and the maximum current value of the energy feedback electronic load I Mload Whether the time length Δt and the preset value Nτ satisfy Δt≤Nτ; if Δt≤Nτ is true, and the hydrogen fuel cell test bench lithium battery SOC meets the condition α%<SOC≤β%, α and β are the preset battery power values, then the lithium battery temporary load mode is entered; if Δt≤Nτ is not true, the peak-shifting test mode is entered.

[0011] Based on the above technical solution, the peak-shifting test mode is to arrange the test in the order of the hydrogen fuel cell test bench. i1 , t i2 , t i3 ...t in ], t in The serial number of the hydrogen fuel cell test bench. ε Moment I 综 (t ε ) is greater than the maximum current of the high-power energy feedback electronic load, it is determined that all hydrogen fuel cell test benches are at the time (t ε +t τ ) time and t ε Whether the hydrogen fuel cell test bench output current value difference i is met at the moment n (t ε +t τ )-i n (t ε )≤Nω, and [i n (t ε +t τ )-i n (t ε )] / t τ ≤Nφ, Nω is the preset fluctuation current threshold, Nφ is the preset current deviation rate threshold, and judge whether it meets I 综 (t ε )-I Mload <N allow , N allow It is a preset comprehensive threshold. If all of them are met, the off-peak test mode is executed until the test is completed. If not, the normal test mode is executed.

[0012] Based on the above technical solution, the temporary load mode of the lithium battery is: ε Time starts 综 (tε ) is greater than the maximum current of the high-power energy feedback electronic load, the lithium battery is actively charged and the excess current, I 综 (t ε )-I Mload The difference is completely absorbed and acts as a temporary load.

[0013] On the basis of the above technical solution, a comprehensive energy management device for synchronous testing of hydrogen fuel cells on multiple platforms is provided. The device is provided with a comprehensive management controller, including at least one hydrogen fuel cell test bench, an electrical cabinet, and a large electronic load connected in sequence, wherein the electrical cabinet is connected with test bench auxiliary equipment and a combined energy storage device.

[0014] On the basis of the above technical solution, the combined energy storage device in the present application includes an energy storage battery and a supercapacitor. If conditions permit, different energy storage devices can be added, and the large electronic load is an energy feedback electronic load.

[0015] On the basis of the above technical solutions, the energy storage batteries in this application can be further subdivided into lithium batteries and / or lead-acid batteries and / or sodium batteries.

[0016] Based on the above technical solution, the test bench auxiliary equipment includes an air supply device, a thermal management device, a humidification control device, a liquid level monitoring and automatic water replenishment device and other related electrical equipment.

[0017] Compared with the prior art, the advantages of the present invention are: Compared with the prior art, the comprehensive energy control method based on multi-platform hydrogen fuel cell synchronous testing in the present invention dynamically manages the fuel cell energy of each test platform and can execute different control strategies under different working conditions, while avoiding excessive reliance on large electronic load devices, saving equipment costs, and is conducive to improving the management level of fuel cell testing equipment and improving the safety of testing work; during the synchronous testing of multiple hydrogen fuel cell systems or stacks, if multiple hydrogen fuel cell products are loaded at maximum power at the same time, resulting in exceeding the maximum working power of the electronic load at this time, the technical solution in the present application can meet the energy management needs during the testing process, realize dynamic management of energy and adapt to different working conditions, and ensure that the testing work proceeds steadily. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a flow chart of a comprehensive energy control method based on multi-platform hydrogen fuel cell synchronous testing in an embodiment of the present invention; Figure 2 Schematic diagram of the structure of a comprehensive energy management device for synchronous testing of multi-platform hydrogen fuel cells in an embodiment of the present invention. DETAILED DESCRIPTION

[0019] The embodiments of the present invention are further described in detail below with reference to the accompanying drawings.

[0020] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of devices and methods consistent with some aspects of the present disclosure as detailed in the appended claims.

[0021] In the description of the present application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" 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 a connection between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements that are not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "including one..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0022] See also Figure 1 The flowchart of the comprehensive energy control method based on the synchronous test of multi-platform hydrogen fuel cells in the embodiment of the present invention is shown. In the present application, the load addition and reduction test plan scheduled for each hydrogen fuel cell test station is first input into the host computer, and the test time plan curve of current and time is generated in the host computer respectively. The test time plan curve of the hydrogen fuel cell test station in the present application is i n (t) = A n f An (t)+B n f Bn (t)+C n f Cn (t)+D n , n≥1 and is a positive integer, t is the test time, i n (t) is the corresponding output current value of each hydrogen fuel cell during the test process, f An (t) is the first current demand curve, f Bn (t) is the second current demand curve, f Cn(t) is the third current demand curve, A n , B n , C n , D n Both are coupling loading correction factors.

[0023] Then, by correcting the deviation values ​​of the same or different current parameters of each hydrogen fuel cell test bench in actual operation, the actual total hydrogen fuel cell test bench test plan curve I(t)=α1i1(t)+α2i2(t)+α3i3(t)+...+α n i n (t)+β; α1, α2, α3,...,α n is the current correction coefficient, β is the comprehensive current compensation value; Finally, the test time plan curves of current and time of all hydrogen fuel cell test benches are input into the integrated management controller to execute the integrated energy management task of multi-platform hydrogen fuel cell synchronous testing.

[0024] At the beginning of the test, the test operator inputs the load increase and decrease test plan scheduled for each hydrogen fuel cell test bench into the host computer, and the host computer generates the test time plan curve of current and time respectively, as follows: The test time plan curve of No. 1 hydrogen fuel cell test bench is i1(t)=A1f A1 (t)+B1f B1 (t)+C1f C1 (t)+D1; The test time plan curve of No. 2 hydrogen fuel cell test bench is i2(t)=A2f A2 (t)+B2f B2 (t)+C2f C2 (t)+D2; The test time plan curve of No. 3 hydrogen fuel cell test bench is i3(t)=A3f A3 (t)+B3f B3 (t)+C3f C3 (t)+D3; ...... The test time plan curve of hydrogen fuel cell test bench No. n is i n (t) = A n f An (t)+B n f Bn (t)+C n f Cn (t)+D n , n≥1 and is a positive integer, i n (t) is the corresponding output current value of each hydrogen fuel cell during the test process, f An(t) is the first current demand curve, f Bn (t) is the second current demand curve, f Cn (t) is the third current demand curve, A n , B n , C n , D n Both are coupling loading correction factors.

[0025] Furthermore, by correcting the differences in the actual operation of the same or different current parameters of each hydrogen fuel cell test bench, the test plan curve of the hydrogen fuel cell test bench is obtained as follows: I(t)=α1i1(t)+α2i2(t)+α3i3(t)+...+α n i n (t)+β; α1, α2, α3,...,α n is the current correction coefficient, β is the comprehensive current compensation value, which is a function of the relationship between current and time.

[0026] For any time t α The corresponding current point of the test bench test plan curve at that moment, that is, I (t α ).

[0027] The auxiliary equipment consumption time planning curve is i α (t) = A α f Aα (t)+B α f Bα (t)+C α f Cα (t)+D α . A α , B α , C α , D α are the correction factors for coupling loading of auxiliary equipment, f Aα (t) is the first current demand curve of auxiliary equipment, f Bα (t) is the second current demand curve of auxiliary equipment, f Cα (t) is the third current demand curve of the auxiliary equipment, and the auxiliary equipment consumption time plan curve is input into the integrated management controller.

[0028] The charging and discharging time planning curve of lithium battery is i Battery (t) = A β f Aβ (t)+B β f Bβ (t)+C β f Cβ (t)+D β . A β , B β , C β, D β are the correction factors for the coupling loading of the combined energy storage device, f Aβ (t) is the first current demand curve of the combined energy storage device, f Bβ (t) is the second current demand curve of the combined energy storage device, f Cβ (t) is the third current demand curve of the combined energy storage device, and the charging and discharging time plan curve of the combined energy storage device is input into the integrated management controller.

[0029] The test time plan curves of current and time of all hydrogen fuel cell test benches, the auxiliary equipment consumption time plan curves and the lithium battery charge and discharge time plan curves are input into the integrated management controller.

[0030] Determine the comprehensive current value I at any time t 综 (t) = I (t) + i α (t)+i Battery (t) Is it less than or equal to the maximum current (power) of the energy feedback electronic load I Mload , if I 综 (t)≤I Mload If the test is established, the normal test mode is entered, and all test work is completed according to the test time plan curve content in the normal test mode; if I 综 (t)>I Mload , then further determine the comprehensive current value I 综 (t) and the maximum current value of the energy feedback electronic load I Mload The time length Δt of the preset value Nτ satisfies Δt≤Nτ. If Δt≤Nτ is established, and the SOC of the lithium battery of the hydrogen fuel cell test bench meets the condition α%<SOC≤β%, the lithium battery temporary load charging mode is entered; if Δt≤Nτ is not established, the peak-shifting test mode is entered.

[0031] Among them, the staggered test mode is: the staggered test mode is to arrange the test in the order of the hydrogen fuel cell test bench [t i1 , t i2 , t i3 ...t in ], t in The serial number of the hydrogen fuel cell test bench. ε Moment I 综 (t ε ) is greater than the maximum current of the high-power energy feedback electronic load, it is determined that all hydrogen fuel cell test benches are at the time (t ε +t τ ) time and t ε Whether the hydrogen fuel cell test bench output current value difference i is met at the moment n (t ε +tτ )-i n (t ε )≤Nω, and [i n (t ε +t τ )-i n (t ε )] / t τ ≤Nφ, Nω is the preset fluctuation current threshold, Nφ is the preset current deviation rate threshold, and judge whether it meets I 综 (t ε )-I Mload <N allow , N allow It is a preset comprehensive threshold. If all of them are met, the off-peak test mode is executed until the test is completed. If not, the normal test mode is executed.

[0032] Among them, the temporary load mode of lithium battery is: when it is calculated at t ε Time starts 综 (t ε ) is greater than the maximum current (power) of the high-power energy feedback electronic load, the lithium battery is actively charged and the excess current (or power) I 余 =I 综 (t ε )-I Mload All absorb the function of acting as a temporary load.

[0033] See Figure 2 The figure shows a schematic diagram of the structure of a comprehensive energy management device for synchronous testing of hydrogen fuel cells on multiple platforms in an embodiment of the present invention. The device is provided with a comprehensive management controller and also includes at least one hydrogen fuel cell test bench, an electrical cabinet, and a large electronic load connected in sequence, wherein the electrical cabinet is connected with test bench auxiliary equipment and a combined energy storage device.

[0034] In this embodiment, the combined energy storage device includes an energy storage battery and a supercapacitor, and the large electronic load is an energy feedback electronic load.

[0035] In this embodiment, the energy storage battery is a lithium battery and / or a lead-acid battery and / or a sodium battery.

[0036] In this embodiment, the test bench auxiliary equipment includes an air supply device, a thermal management device, a humidification control device, and a liquid level monitoring and automatic water replenishment device.

[0037] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application may adopt the form of a computer program product implemented in one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) that include computer-usable program code.

[0038] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0039] The present invention is not limited to the above-mentioned embodiments. For ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications are also considered to be within the scope of protection of the present invention. The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

Claims

1. A comprehensive energy control method based on multi-platform hydrogen fuel cell synchronous testing, characterized by: The method includes inputting the load increase and decrease test plan scheduled for each hydrogen fuel cell test bench into the host computer, and generating the test time plan curve i of current and time in the host computer respectively. n (t) = A n f An (t)+B n f Bn (t)+C n f Cn (t)+D n , n≥1 and is a positive integer, t is the test time, i n (t) is the corresponding output current value of each hydrogen fuel cell during the test process, f An (t) is the first current demand curve, f Bn (t) is the second current demand curve, f Cn (t) is the third current demand curve, A n , B n , C n , D n All of them are coupling loading correction coefficients; then by correcting the deviation values ​​of the same or different current parameters of each hydrogen fuel cell test bench in actual operation, the actual total hydrogen fuel cell test bench test plan curve I (t) = α1i1 (t) + α2i2 (t) + α3i3 (t) + ... + α n i n (t)+β; α1, α2, α3,...,α n is the current correction coefficient, and β is the comprehensive current compensation value; finally, the test time plan curve of current and time of all hydrogen fuel cell test benches is input into the integrated management controller to execute the comprehensive energy management task of multi-platform hydrogen fuel cell synchronous testing.

2. The comprehensive energy control method based on multi-platform hydrogen fuel cell synchronous testing according to claim 1 is characterized in that: There is also an auxiliary equipment consumption time planning curve i α (t) = A α f Aα (t)+B α f Bα (t)+C α f Cα (t)+D α , A α , B α , C α , D α are the correction factors for coupling loading of auxiliary equipment, f Aα (t) is the first current demand curve of auxiliary equipment, f Bα (t) is the second current demand curve of auxiliary equipment, f Cα (t) is the third current demand curve of the auxiliary equipment, and the auxiliary equipment consumption time plan curve is input into the integrated management controller.

3. The comprehensive energy control method based on multi-platform hydrogen fuel cell synchronous testing according to claim 1 is characterized in that: There is also a combined energy storage device charging and discharging time plan curve i Battery (t) = A β f Aβ (t)+B β f Bβ (t)+C β f Cβ (t)+D β , A β , B β , C β , D β are the correction factors for the coupling loading of the combined energy storage device, f Aβ (t) is the first current demand curve of the combined energy storage device, f Bβ (t) is the second current demand curve of the combined energy storage device, f Cβ (t) is the third current demand curve of the combined energy storage device, and the charging and discharging time plan curve of the combined energy storage device is input into the integrated management controller.

4. The comprehensive energy control method based on multi-platform hydrogen fuel cell synchronous testing according to claim 2 or 3, characterized in that: It also includes normal test mode and peak-shift test mode. The integrated management controller determines the integrated current value I at any time t 综 (t) = I (t) + i α (t)+i Battery (t) Is it less than or equal to the maximum current I of the energy feedback electronic load? Mload , if I 综 (t)≤I Mload If established, it enters the normal test mode, in which all test work is completed according to the test time plan curve content; if I 综 (t)>I Mload , then further determine the comprehensive current value I 综 (t) and the maximum current value of the energy feedback electronic load I Mload Whether the time length Δt and the preset value Nτ satisfy Δt≤Nτ; if Δt≤Nτ is true, and the hydrogen fuel cell test bench lithium battery SOC meets the condition α%<SOC≤β%, α and β are the preset battery power values, then the lithium battery temporary load mode is entered; if Δt≤Nτ is not true, the peak-shifting test mode is entered.

5. The comprehensive energy control method based on multi-platform hydrogen fuel cell synchronous testing according to claim 4 is characterized in that: The staggered test mode is to arrange the test in the order of the hydrogen fuel cell test bench. i1 , t i2 , t i3 ...t in ], t in is the serial number of the hydrogen fuel cell test bench. ε Moment I 综 (t ε ) is greater than the maximum current of the high-power energy feedback electronic load, it is determined that all hydrogen fuel cell test benches are at the time (t ε +t τ ) time and t ε Whether the hydrogen fuel cell test bench output current value difference i is met at the moment n (t ε +t τ )-i n (t ε )≤Nω, and [i n (t ε +t τ )-i n (t ε )] / t τ ≤Nφ, Nω is the preset fluctuation current threshold, Nφ is the preset current deviation rate threshold, and judge whether it meets I 综 (t ε )-I Mload <N allow , N allow It is a preset comprehensive threshold. If all of them are met, the off-peak test mode is executed until the test is completed. If not, the normal test mode is executed.

6. The comprehensive energy control method based on multi-platform hydrogen fuel cell synchronous testing according to claim 4 is characterized in that: The temporary load mode of the lithium battery is: ε Time starts 综 (t ε ) is greater than the maximum current of the high-power energy feedback electronic load, the lithium battery is actively charged and the excess current, I 综 (t ε )-I Mload The difference is completely absorbed and acts as a temporary load.

7. A comprehensive energy management device for synchronous testing of multi-platform hydrogen fuel cells according to the comprehensive energy control method of any one of claims 1 to 6, the device is provided with a comprehensive management controller, characterized in that: It includes at least one hydrogen fuel cell test bench, an electrical cabinet, and a large electronic load connected in sequence, wherein the electrical cabinet is connected with test bench auxiliary equipment and a combined energy storage device.

8. The integrated energy management device for synchronous testing of multi-platform hydrogen fuel cells according to claim 7, characterized in that: The combined energy storage device includes an energy storage battery and a super capacitor, and the large electronic load is an energy feedback electronic load.

9. The integrated energy management device for synchronous testing of multi-platform hydrogen fuel cells according to claim 8, characterized in that: The energy storage battery is a lithium battery and / or a lead-acid battery and / or a sodium battery.

10. The integrated energy management device for synchronous testing of multi-platform hydrogen fuel cells according to claim 8, characterized in that: The test bench auxiliary equipment includes an air supply device, a thermal management device, a humidification control device, a liquid level monitoring and automatic water replenishment device.

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