CN116031446B - Dynamic load control method, device and equipment for hydrogen fuel cell - Google Patents
Dynamic load control method, device and equipment for hydrogen fuel cell Download PDFInfo
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- 239000001257 hydrogen Substances 0.000 title claims abstract description 140
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 140
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 139
- 238000000034 method Methods 0.000 title claims abstract description 83
- 239000000446 fuel Substances 0.000 title claims abstract description 51
- 230000008569 process Effects 0.000 claims abstract description 47
- 239000007789 gas Substances 0.000 claims description 37
- 238000002347 injection Methods 0.000 claims description 12
- 239000007924 injection Substances 0.000 claims description 12
- 238000004590 computer program Methods 0.000 claims description 10
- 238000007599 discharging Methods 0.000 claims 2
- 230000008859 change Effects 0.000 abstract description 9
- 230000003111 delayed effect Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 2
- 230000001276 controlling effect Effects 0.000 description 34
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 24
- 229910052757 nitrogen Inorganic materials 0.000 description 12
- 230000007423 decrease Effects 0.000 description 7
- 239000000243 solution Substances 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000004891 communication Methods 0.000 description 4
- 150000002431 hydrogen Chemical class 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 238000011217 control strategy Methods 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 239000012466 permeate Substances 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 230000006870 function Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 230000001105 regulatory effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000000153 supplemental effect Effects 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
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Abstract
The invention provides a dynamic load control method, a device and equipment of a hydrogen fuel cell, which are used for acquiring a load regulation signal, continuously increasing the system load if the load signal is received, synchronously and continuously increasing a pressure target value, a pressure upper limit value and a pressure lower limit value, and entering a dynamic load control process; if the load reducing signal is received, detecting the anode pressure in real time, continuously reducing the system load after the anode pressure is smaller than or equal to the pressure target value, synchronously and continuously reducing the pressure target value, the pressure upper limit value and the pressure lower limit value, and entering a dynamic load control process; wherein the pressure upper limit value is greater than a pressure target value, and the pressure target value is greater than a pressure lower limit value. The invention sets different immediate load changing and delayed load changing strategies to reduce the superposition effect of pressure fluctuation and load changing, fully considers the pressure fluctuation change and prevents the pressure change from being severe, thereby reducing the pressure fluctuation range of the anode and effectively reducing the performance fluctuation of the anode pile.
Description
Technical Field
The present invention relates to the field of hydrogen fuel cells, and in particular, to a method, an apparatus, and a device for controlling dynamic load of a hydrogen fuel cell.
Background
In the anode gas circulation region of the hydrogen fuel cell, hydrogen gas gradually decreases with current output, and pressure gradually decreases; the nitrogen gradually permeates from the membrane electrode into the anode without consumption, the nitrogen content gradually increases to generate tail gas, and in order to reduce the nitrogen and liquid water in the anode gas circulation area, the tail gas (containing nitrogen and redundant liquid water) leaves the anode gas circulation area in a pulse discharge mode by the anode tail gas discharge area, and the part of the anode tail gas is replaced by the supplemented fuel hydrogen. When the hydrogen fuel cell is in operation or in loading and unloading processes, the exhaust gas is discharged, and the pressure of the anode gas is high, so that the discharge speed is high, and the pressure of the anode gas circulation area is fast to drop. In the fuel hydrogen supply area, high-pressure hydrogen is pulse-supplemented into the anode gas circulation area to supplement the consumed hydrogen and raise the anode gas pressure. Because the high-pressure hydrogen gas is replenished at a high rate, the pressure in the anode gas circulation region is raised at a high rate. When exhaust gas is discharged, the anode pressure is rapidly reduced, and when fuel hydrogen is supplemented, the anode pressure is rapidly increased, so that the fluctuation range of the anode pressure is large, and the performance is unstable.
Disclosure of Invention
The invention provides a dynamic load control method, a device and equipment of a hydrogen fuel cell, which are used for reducing the risk that the anode pressure fluctuation exceeds the upper limit and the lower limit in the prior art.
In a first aspect, the present invention provides a dynamic load control method of a hydrogen fuel cell, comprising the steps of:
acquiring a load adjusting signal, continuously increasing the system load if the load adjusting signal is received, synchronously and continuously increasing a pressure target value, a pressure upper limit value and a pressure lower limit value, and entering a dynamic load control process; if the load reducing signal is received, detecting the anode pressure in real time, continuously reducing the system load after the anode pressure is smaller than or equal to the pressure target value, synchronously and continuously reducing the pressure target value, the pressure upper limit value and the pressure lower limit value, and entering a dynamic load control process; wherein the pressure upper limit value is greater than a pressure target value, and the pressure target value is greater than a pressure lower limit value;
the dynamic load control process includes:
and detecting the anode pressure in real time, controlling the anode to not supply hydrogen when the anode pressure is larger than or equal to a pressure target value and smaller than a pressure upper limit value, controlling the anode to not supply hydrogen and discharge tail gas when the anode pressure is larger than or equal to the pressure upper limit value, and controlling the anode to supply hydrogen when the anode pressure is smaller than a pressure lower limit value.
According to the method for controlling the dynamic load of the hydrogen fuel cell provided by the invention, the dynamic load control process further comprises the following steps:
and when the anode pressure is smaller than the pressure target value and larger than or equal to the pressure lower limit value, controlling the anode to supply hydrogen.
According to the method for controlling the dynamic load of the hydrogen fuel cell provided by the invention, the dynamic load control process comprises the following steps:
the supply amount of anode hydrogen when the anode pressure is less than the pressure target value and equal to or greater than the pressure lower limit value is smaller than the supply amount of anode hydrogen when the anode pressure is less than the pressure lower limit value.
According to the method for controlling the dynamic load of the hydrogen fuel cell provided by the invention, the dynamic loading process further comprises the following steps:
the initial moment of increasing the system load controls the anode hydrogen supply.
According to the method for controlling the dynamic load of the hydrogen fuel cell provided by the invention, the control anode hydrogen supply is specifically as follows: the hydrogen supply valve or the duty ratio of the hydrogen injection valve is opened.
According to the dynamic load control method of the hydrogen fuel cell, the increment of the duty ratio of the hydrogen supply valve or the hydrogen injection valve is 20-80%.
According to the method for controlling the dynamic load of the hydrogen fuel cell provided by the invention, the control anode hydrogen supply is specifically as follows: the valve opening of the hydrogen supply valve or the hydrogen injection valve is opened.
According to the dynamic load control method of the hydrogen fuel cell, the increment of the valve opening of the hydrogen supply valve or the hydrogen injection valve is 20% -80%.
In a second aspect, the present invention also provides a dynamic load control device for a hydrogen fuel cell, comprising:
the load switching unit is used for acquiring a load adjusting signal, continuously increasing the system load if the load adjusting signal is received, synchronously and continuously increasing a pressure target value, a pressure upper limit value and a pressure lower limit value, and operating the dynamic load control unit to enter a dynamic load control process; if the load reducing signal is received, detecting the anode pressure in real time, continuously reducing the system load after the anode pressure is smaller than or equal to the pressure target value, synchronously and continuously reducing the pressure target value, the pressure upper limit value and the pressure lower limit value, and operating the dynamic load control unit to enter a dynamic load control process; wherein the pressure upper limit value is greater than a pressure target value, and the pressure target value is greater than a pressure lower limit value;
a dynamic load control unit for running a dynamic control process, comprising: and detecting the anode pressure in real time, controlling the anode to not supply hydrogen when the anode pressure is larger than or equal to a pressure target value and smaller than a pressure upper limit value, controlling the anode to not supply hydrogen and discharge tail gas when the anode pressure is larger than or equal to the pressure upper limit value, and controlling the anode to supply hydrogen when the anode pressure is smaller than a pressure lower limit value.
The invention also provides an electronic device comprising a memory, a processor and a computer program stored in the memory and capable of running on the processor, wherein the processor realizes the dynamic load control method of any hydrogen fuel cell when executing the program.
The present invention also provides a non-transitory computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements a method of dynamic load control of a hydrogen fuel cell as any one of the above.
The dynamic load control method, the device and the equipment for the hydrogen fuel cell adopt different control strategies in the loading and unloading processes of the system, hydrogen is supplemented in advance in the loading process, the unloading is delayed until the anode pressure is reduced to a reasonable range in the unloading process, different immediate unloading and delayed unloading strategies are set to reduce the pressure fluctuation and the superposition effect of the unloading, the pressure fluctuation change is fully considered, the pressure fluctuation is prevented from being severe, the anode pressure fluctuation range is reduced, and the anode pile performance fluctuation is effectively reduced.
Additional features and advantages of the application will be set forth in the description which follows, and in part will be apparent from the description, or may be learned by practice of the embodiments of the application. The objectives and other advantages of the application will be realized and attained by the structure particularly pointed out in the written description and claims thereof as well as the appended drawings.
Drawings
In order to more clearly illustrate the invention or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of an anode plumbing configuration of a hydrogen fuel cell stack;
FIG. 2 is a graph of anode pressure change during load ramp-up of a hydrogen fuel cell system as employed in the prior art;
FIG. 3 is a graph of anode pressure change during load reduction in a hydrogen fuel cell system as employed in the prior art;
FIG. 4 is a flow chart of a method of dynamic load control of a hydrogen fuel cell provided by the present invention;
fig. 5 is a graph of anode pressure change during load elevation formed using the dynamic load control method of the hydrogen fuel cell of the present invention;
fig. 6 is a graph of anode pressure change during load reduction by the dynamic load control method of the hydrogen fuel cell of the present invention;
fig. 7 is a schematic view of an anode pressure balancing apparatus of a hydrogen fuel cell according to the present invention;
fig. 8 is a schematic structural diagram of an electronic device provided by the present invention.
Detailed Description
Embodiments of the technical solutions of the present application will be described in detail below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical solutions of the present application, and thus are only examples, and are not intended to limit the scope of protection of the present application.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having" and any variations thereof in the description and claims of the present application and in the description of the figures above are intended to cover non-exclusive inclusions.
In the description of the embodiments of the present application, the technical terms "first," "second," etc. are used merely to distinguish between different objects and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, a particular order or a primary or secondary relationship. In the description of the embodiments of the present application, the meaning of "plurality" is two or more unless explicitly defined otherwise.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the present application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.
Fig. 1 is a schematic view of an anode stack structure of a hydrogen fuel cell, the anode stack including an anode gas circulation region, a fuel hydrogen supply region, and an anode off-gas discharge region.
In the anode gas circulation region, hydrogen gradually decreases with current output, and the pressure gradually decreases; nitrogen gradually permeates from the membrane electrode into the anode without consumption, and the nitrogen content gradually increases.
In the fuel hydrogen supply area, high-pressure hydrogen is pulse-supplemented into the anode gas circulation area to supplement the consumed hydrogen and raise the anode gas pressure. Because the high-pressure hydrogen gas is replenished at a high rate, the pressure in the anode gas circulation region is raised at a high rate.
In the anode off-gas discharge zone, high pressure anode gas (containing nitrogen and excess liquid water) is pulsed off the anode gas recirculation zone to reduce the amount of nitrogen and liquid water in the anode gas recirculation zone, replacing with supplemental fuel hydrogen. Because the anode gas pressure is high and the discharge rate is high, the pressure in the anode gas circulation region decreases rapidly.
FIG. 2 is a graph of anode pressure change during load ramp-up of a hydrogen fuel cell system as employed in the prior art; fig. 3 is a graph of anode pressure change during load ramp-up of a hydrogen fuel cell system as employed in the prior art. As shown in FIG. 2, when the system begins to build up load, anode pressurization is not immediately performed, anode pressure is still decreasing, at P 1 Point-generated anode pressureThe force exceeds the difference point, the anode pressure fluctuation is large; similarly, as shown in FIG. 3, when the system begins to decrease the load, the anode pressure upper, lower, target values immediately decrease by an amount greater than the anode pressure drop, resulting in a load at P 2 The point generates an anode pressure super-differential point, and the anode pressure fluctuates greatly.
A dynamic load control method of a hydrogen fuel cell according to the present invention is described below with reference to fig. 4, including:
acquiring a load adjusting signal, continuously increasing the system load if the load adjusting signal is received, synchronously and continuously increasing a pressure target value, a pressure upper limit value and a pressure lower limit value, and entering a dynamic load control process; if the load reducing signal is received, detecting the anode pressure in real time, continuously reducing the system load after the anode pressure is smaller than or equal to the pressure target value, synchronously and continuously reducing the pressure target value, the pressure upper limit value and the pressure lower limit value, and entering a dynamic load control process; wherein the pressure upper limit value is greater than a pressure target value, and the pressure target value is greater than a pressure lower limit value;
the dynamic load control process includes:
and detecting the anode pressure in real time, controlling the anode to not supply hydrogen when the anode pressure is larger than or equal to a pressure target value and smaller than a pressure upper limit value, controlling the anode to not supply hydrogen and discharge tail gas when the anode pressure is larger than or equal to the pressure upper limit value, and controlling the anode to supply hydrogen when the anode pressure is smaller than a pressure lower limit value.
In one embodiment of the invention, the initial time of increasing the system load controls the anode hydrogen supply.
Specifically, for ease of understanding, the system loading process is specifically described with reference to fig. 5:
when the loading signal is received, the system load is continuously increased, and the pressure target value, the pressure upper limit value and the pressure lower limit value are synchronously and continuously increased, namely P in FIG. 5 3 The point is the moment of receiving the loading signal, at P 3 The system load is then increased and the pressure target value, the pressure upper limit value, and the pressure lower limit value are continuously increased. And at P 3 At moment, loading is carried out and simultaneously anode hydrogen supply is controlled, so that the generation of out-of-tolerance caused by too low anode pressure is avoidedIn the above-described embodiment, the anode pressure fluctuation is reduced. P (P) 3 After the moment, a dynamic load control process is entered.
Specifically, for ease of understanding, the system drop process will be specifically described with reference to fig. 5:
if the load reduction signal is received, detecting the anode pressure in real time, if the anode pressure is larger than the pressure target value at the moment, continuously reducing the system load after waiting for the anode pressure to be smaller than or equal to the pressure target value for the first time, synchronously and continuously reducing the pressure target value, the pressure upper limit value and the pressure lower limit value, and entering a dynamic load control process as shown in fig. 5; if the anode pressure is smaller than the pressure target value, continuously reducing the system load, synchronously continuously reducing the pressure target value, the pressure upper limit value and the pressure lower limit value, and entering a dynamic load control process. By the control strategy, after receiving the load-reducing instruction, the actual load-reducing time is delayed to P in the figure 4 And after the point and the moment, the condition that the anode pressure is too low to generate out-of-tolerance is avoided, and the fluctuation of the anode pressure is reduced.
Specifically, for ease of understanding, the dynamic load control process of the system loading process will be described in detail with reference to fig. 5:
as shown in fig. 5, at P 3 After hydrogen is supplied to the anode, detecting the anode pressure in real time, and controlling the anode to not supply hydrogen and the anode pressure to rise or fall when the anode pressure is larger than or equal to a pressure target value and smaller than a pressure upper limit value; when the anode pressure is larger than or equal to the pressure upper limit value, controlling the anode to not supply hydrogen and discharge tail gas, and starting to drop the anode pressure; when the anode pressure is less than the lower pressure limit, the anode is controlled to supply hydrogen, and the anode pressure starts to rise. Under such a control strategy, the anode pressure can fluctuate between the upper pressure limit value and the lower pressure limit value, so that the anode pressure is prevented from fluctuating too much, and the stability of the hydrogen fuel cell is improved.
Similarly, as shown in fig. 6, a dynamic load control process of the system load reduction process is specifically described: when the anode pressure is smaller than the lower pressure limit value, controlling the anode to supply hydrogen, and starting to rise the anode pressure; when the anode pressure is larger than or equal to the pressure target value and smaller than the pressure upper limit value, controlling the anode to not supply hydrogen, and increasing or decreasing the anode pressure; when the anode pressure is greater than or equal to the upper pressure limit value, the anode is controlled to not supply hydrogen and exhaust tail gas is discharged, and the anode pressure starts to drop.
Furthermore, in one embodiment of the present invention, the dynamic load control process further includes:
when the anode pressure is less than the pressure target value and equal to or greater than the pressure lower limit value, the anode hydrogen supply is controlled, and the anode hydrogen supply amount when the anode pressure is less than the pressure target value and equal to or greater than the pressure lower limit value is smaller than the anode hydrogen supply amount when the anode pressure is less than the pressure lower limit value. Based on the dynamic control of the present embodiment, the fluctuation pressure fluctuation range when the anode pressure is smaller than the pressure target value and equal to or larger than the pressure lower limit value is smaller, the anode pressure can fluctuate between the pressure upper limit value and the pressure lower limit value, the anode pressure fluctuation is prevented from being excessively large, and the stability of the hydrogen fuel cell is improved.
In one embodiment of the present invention, specifically, the anode hydrogen supply is controlled by opening a hydrogen supply valve or a duty ratio of a hydrogen injection valve: when the hydrogen supply valve/hydrogen injection valve is an on-off valve, the duty cycle in the on state is used for control, a duty cycle increment is preset, the selectable range is 20-80%, in a preferred embodiment, the duty cycle increment is 40-60%, and the duty cycle increment is superimposed based on the normal operation state while the drain nitrogen valve is opened.
Specifically, when the hydrogen supply valve/hydrogen injection valve is an opening adjustable valve and is controlled by adopting the valve opening, an opening increment is preset, the selectable range is 20-80% of the full opening, in a preferred embodiment, the opening increment is 40-60%, and the opening increment is overlapped based on the normal operation state while the water drainage and nitrogen discharge valve is opened. After the drainage and nitrogen discharge are finished, the overlapped duty cycle increment or valve opening increment is canceled when the drainage and nitrogen discharge valve is closed, so that the hydrogen supply quantity is returned to the normal value. The hydrogen supply of the anode can be controlled and the hydrogen supply of the anode can be regulated by the mode. If the hydrogen supply amount at one stage is smaller than that at the other stage, the duty ratio or the valve opening of the hydrogen supply valve or the hydrogen injection valve at that stage may be set smaller than that at the other stage.
The following describes a dynamic load control device for a hydrogen fuel cell according to the present invention, and the anode pressure balancing device for a hydrogen fuel described below and the dynamic load control method for a hydrogen fuel cell described above may be referred to correspondingly.
A dynamic load control method of a hydrogen fuel cell, as shown in fig. 7, includes:
the load switching unit 701 is configured to obtain a load adjustment signal, continuously increase a system load if the load adjustment signal is received, and synchronously and continuously increase a pressure target value, a pressure upper limit value and a pressure lower limit value, and operate the dynamic load control unit to enter a dynamic load control process; if the load reducing signal is received, detecting the anode pressure in real time, continuously reducing the system load after the anode pressure is smaller than or equal to the pressure target value, synchronously and continuously reducing the pressure target value, the pressure upper limit value and the pressure lower limit value, and operating the dynamic load control unit to enter a dynamic load control process; wherein the pressure upper limit value is greater than a pressure target value, and the pressure target value is greater than a pressure lower limit value;
a dynamic load control unit 702 for running a dynamic control process, comprising: and detecting the anode pressure in real time, controlling the anode to not supply hydrogen when the anode pressure is larger than or equal to a pressure target value and smaller than a pressure upper limit value, controlling the anode to not supply hydrogen and discharge tail gas when the anode pressure is larger than or equal to the pressure upper limit value, and controlling the anode to supply hydrogen when the anode pressure is smaller than a pressure lower limit value.
Fig. 8 is a schematic diagram of an electronic device according to an embodiment of the present application. Referring to fig. 8, an electronic device 800 includes: processor 810, memory 820, and communication interface 830, which are interconnected and communicate with each other by a communication bus 840 and/or other form of connection mechanism (not shown) to perform a method of dynamic load control of a hydrogen fuel cell, comprising:
acquiring a load adjusting signal, continuously increasing the system load if the load adjusting signal is received, synchronously and continuously increasing a pressure target value, a pressure upper limit value and a pressure lower limit value, and entering a dynamic load control process; if the load reducing signal is received, detecting the anode pressure in real time, continuously reducing the system load after the anode pressure is smaller than or equal to the pressure target value, synchronously and continuously reducing the pressure target value, the pressure upper limit value and the pressure lower limit value, and entering a dynamic load control process; wherein the pressure upper limit value is greater than a pressure target value, and the pressure target value is greater than a pressure lower limit value; the dynamic load control process includes: and detecting the anode pressure in real time, controlling the anode to not supply hydrogen when the anode pressure is larger than or equal to a pressure target value and smaller than a pressure upper limit value, controlling the anode to not supply hydrogen and discharge tail gas when the anode pressure is larger than or equal to the pressure upper limit value, and controlling the anode to supply hydrogen when the anode pressure is smaller than a pressure lower limit value.
The Memory 820 includes one or more (Only one is shown in the figure), which may be, but is not limited to, a random access Memory (Random Access Memory, RAM), a Read Only Memory (ROM), a programmable Read Only Memory (Programmable Read-Only Memory, PROM), an erasable Read Only Memory (Erasable Programmable Read-Only Memory, EPROM), an electrically erasable Read Only Memory (Electric Erasable Programmable Read-Only Memory, EEPROM), and the like. Processor 810, as well as other possible components, may access memory 820, read data from, and/or write data to.
The processor 810 includes one or more (only one shown) which may be an integrated circuit chip having signal processing capabilities. The processor 810 may be a general-purpose processor, including a central processing unit (Central Processing Unit, CPU), a micro control unit (Micro Controller Unit, MCU), a network processor (Network Processor, NP), or other conventional processor; but may also be a special purpose processor including a digital signal processor (Digital Signal Processor, DSP for short), an application specific integrated circuit (Application Specific Integrated Circuits, ASIC for short), a field programmable gate array (Field Programmable Gate Array, FPGA for short), or other programmable logic device, discrete gate or transistor logic device, discrete hardware components.
Communication interface 830 includes one or more (only one shown) that may be used to communicate directly or indirectly with other devices for data interaction. For example, communication interface 830 may be an ethernet interface; may be a mobile communications network interface, such as an interface of a 3G, 4G, 5G network; or may be other types of interfaces with data transceiving functionality.
One or more computer program instructions may be stored in memory 820 and may be read and executed by processor 810 to implement the characteristic curve compensation control method for a hydrogen fuel cell and other desired functions provided in the embodiments of the present application.
It is to be understood that the configuration shown in fig. 8 is merely illustrative, and that electronic device 800 may also include more or fewer components than those shown in fig. 8, or have a different configuration than that shown in fig. 8. The components shown in fig. 8 may be implemented in hardware, software, or a combination thereof. For example, the electronic device 800 may be a single server (or other device with computing capabilities), a combination of multiple servers, a cluster of a large number of servers, etc., and may be either a physical device or a virtual device.
In another aspect, the present invention also provides a computer program product, where the computer program product includes a computer program, where the computer program can be stored on a non-transitory computer readable storage medium, where the computer program, when executed by a processor, can perform a method for controlling a dynamic load of a hydrogen fuel cell provided by the above methods, where the method includes: acquiring a load adjusting signal, continuously increasing the system load if the load adjusting signal is received, synchronously and continuously increasing a pressure target value, a pressure upper limit value and a pressure lower limit value, and entering a dynamic load control process; if the load reducing signal is received, detecting the anode pressure in real time, continuously reducing the system load after the anode pressure is smaller than or equal to the pressure target value, synchronously and continuously reducing the pressure target value, the pressure upper limit value and the pressure lower limit value, and entering a dynamic load control process; wherein the pressure upper limit value is greater than a pressure target value, and the pressure target value is greater than a pressure lower limit value; the dynamic load control process includes: and detecting the anode pressure in real time, controlling the anode to not supply hydrogen when the anode pressure is larger than or equal to a pressure target value and smaller than a pressure upper limit value, controlling the anode to not supply hydrogen and discharge tail gas when the anode pressure is larger than or equal to the pressure upper limit value, and controlling the anode to supply hydrogen when the anode pressure is smaller than a pressure lower limit value.
In yet another aspect, the present invention also provides a non-transitory computer readable storage medium having stored thereon a computer program which, when executed by a processor, is implemented to perform a method for controlling a dynamic load of a hydrogen fuel cell provided by the above methods, comprising: acquiring a load adjusting signal, continuously increasing the system load if the load adjusting signal is received, synchronously and continuously increasing a pressure target value, a pressure upper limit value and a pressure lower limit value, and entering a dynamic load control process; if the load reducing signal is received, detecting the anode pressure in real time, continuously reducing the system load after the anode pressure is smaller than or equal to the pressure target value, synchronously and continuously reducing the pressure target value, the pressure upper limit value and the pressure lower limit value, and entering a dynamic load control process; wherein the pressure upper limit value is greater than a pressure target value, and the pressure target value is greater than a pressure lower limit value; the dynamic load control process includes: and detecting the anode pressure in real time, controlling the anode to not supply hydrogen when the anode pressure is larger than or equal to a pressure target value and smaller than a pressure upper limit value, controlling the anode to not supply hydrogen and discharge tail gas when the anode pressure is larger than or equal to the pressure upper limit value, and controlling the anode to supply hydrogen when the anode pressure is smaller than a pressure lower limit value. For example, the computer-readable storage medium may be implemented as memory 820 in electronic device 800 in FIG. 8.
The apparatus embodiments described above are merely illustrative, wherein the elements illustrated as separate elements may or may not be physically separate, and the elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art will understand and implement the present invention without undue burden.
From the above description of the embodiments, it will be apparent to those skilled in the art that the embodiments may be implemented by means of software plus necessary general hardware platforms, or of course may be implemented by means of hardware. Based on this understanding, the foregoing technical solution may be embodied essentially or in a part contributing to the prior art in the form of a software product, which may be stored in a computer readable storage medium, such as ROM/RAM, a magnetic disk, an optical disk, etc., including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method described in the respective embodiments or some parts of the embodiments.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (7)
1. A method for dynamic load control of a hydrogen fuel cell, comprising the steps of:
acquiring a load adjusting signal, continuously increasing the system load if the load adjusting signal is received, synchronously and continuously increasing a pressure target value, a pressure upper limit value and a pressure lower limit value, and entering a dynamic load control process; if the load reducing signal is received, detecting the anode pressure in real time, continuously reducing the system load after the anode pressure is smaller than or equal to the pressure target value, synchronously and continuously reducing the pressure target value, the pressure upper limit value and the pressure lower limit value, and entering a dynamic load control process; wherein the pressure upper limit value is greater than a pressure target value, and the pressure target value is greater than a pressure lower limit value;
the dynamic load control process includes:
detecting the anode pressure in real time, and controlling the anode to not supply hydrogen when the anode pressure is larger than or equal to a pressure target value and smaller than a pressure upper limit value; when the anode pressure is greater than or equal to the pressure upper limit value, controlling the anode to not supply hydrogen and discharging tail gas; when the anode pressure is smaller than the pressure lower limit value, controlling the anode to supply hydrogen; when the anode pressure is less than the pressure target value and equal to or greater than the pressure lower limit value, controlling the anode hydrogen supply, and the anode hydrogen supply is smaller than that when the anode pressure is less than the pressure lower limit value;
the dynamic load control process further includes: the initial moment of increasing the system load controls the anode hydrogen supply.
2. The method for dynamic load control of a hydrogen fuel cell according to claim 1, wherein the control anode hydrogen supply is specifically: the hydrogen supply valve or the duty ratio of the hydrogen injection valve is opened.
3. The method according to claim 2, wherein the increase in the duty ratio of the hydrogen supply valve or the hydrogen injection valve is 20% to 80%.
4. The method for dynamic load control of a hydrogen fuel cell according to claim 1, wherein the control anode hydrogen supply is specifically: the valve opening of the hydrogen supply valve or the hydrogen injection valve is opened.
5. The method according to claim 4, wherein the increment of the valve opening of the hydrogen supply valve or the hydrogen injection valve is 20% to 80%.
6. A dynamic load control device for a hydrogen fuel cell, comprising:
the load switching unit is used for acquiring a load adjusting signal, continuously increasing the system load if the load adjusting signal is received, synchronously and continuously increasing a pressure target value, a pressure upper limit value and a pressure lower limit value, and operating the dynamic load control unit to enter a dynamic load control process; if the load reducing signal is received, detecting the anode pressure in real time, continuously reducing the system load after the anode pressure is smaller than or equal to the pressure target value, synchronously and continuously reducing the pressure target value, the pressure upper limit value and the pressure lower limit value, and operating the dynamic load control unit to enter a dynamic load control process; wherein the pressure upper limit value is greater than a pressure target value, and the pressure target value is greater than a pressure lower limit value;
a dynamic load control unit for running a dynamic control process, comprising: the initial moment of increasing the system load controls the anode to supply hydrogen; detecting the anode pressure in real time, and controlling the anode to not supply hydrogen when the anode pressure is larger than or equal to a pressure target value and smaller than a pressure upper limit value; when the anode pressure is greater than or equal to the pressure upper limit value, controlling the anode to not supply hydrogen and discharging tail gas; when the anode pressure is smaller than the pressure lower limit value, controlling the anode to supply hydrogen; when the anode pressure is less than the pressure target value and equal to or greater than the pressure lower limit value, controlling the anode hydrogen supply, and the anode hydrogen supply is smaller than that when the anode pressure is less than the pressure lower limit value; the dynamic load control unit running the dynamic control process further includes: the initial moment of increasing the system load controls the anode hydrogen supply.
7. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor implements the method of any one of claims 1-5 when the program is executed by the processor.
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| CN114464848A (en) * | 2022-01-24 | 2022-05-10 | 同济大学 | Hydrogen flow load matching control method and device for vehicle-mounted hydrogen supply system |
| CN115360382A (en) * | 2022-09-14 | 2022-11-18 | 重庆长安新能源汽车科技有限公司 | Hydrogen system of fuel cell vehicle, control method and vehicle |
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| CN114464848A (en) * | 2022-01-24 | 2022-05-10 | 同济大学 | Hydrogen flow load matching control method and device for vehicle-mounted hydrogen supply system |
| CN115360382A (en) * | 2022-09-14 | 2022-11-18 | 重庆长安新能源汽车科技有限公司 | Hydrogen system of fuel cell vehicle, control method and vehicle |
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