CN116895790A - Hydrogen fuel cell stack starting control method and device and electronic equipment - Google Patents
Hydrogen fuel cell stack starting control method and device and electronic equipment Download PDFInfo
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- CN116895790A CN116895790A CN202310998500.8A CN202310998500A CN116895790A CN 116895790 A CN116895790 A CN 116895790A CN 202310998500 A CN202310998500 A CN 202310998500A CN 116895790 A CN116895790 A CN 116895790A
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- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 189
- 239000001257 hydrogen Substances 0.000 title claims abstract description 188
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 188
- 239000000446 fuel Substances 0.000 title claims abstract description 134
- 238000000034 method Methods 0.000 title claims abstract description 46
- 238000010926 purge Methods 0.000 claims abstract description 152
- 238000012545 processing Methods 0.000 claims description 11
- 238000004364 calculation method Methods 0.000 claims description 9
- 238000001514 detection method Methods 0.000 claims description 9
- 230000004044 response Effects 0.000 claims description 7
- 238000010586 diagram Methods 0.000 description 12
- 230000008569 process Effects 0.000 description 9
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 6
- 239000001301 oxygen Substances 0.000 description 6
- 229910052760 oxygen Inorganic materials 0.000 description 6
- 230000000977 initiatory effect Effects 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 238000004590 computer program Methods 0.000 description 2
- 238000012937 correction Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 239000013307 optical fiber Substances 0.000 description 2
- 239000012466 permeate Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000000644 propagated effect Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 230000008685 targeting Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04223—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids during start-up or shut-down; Depolarisation or activation, e.g. purging; Means for short-circuiting defective fuel cells
- H01M8/04225—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids during start-up or shut-down; Depolarisation or activation, e.g. purging; Means for short-circuiting defective fuel cells during start-up
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04298—Processes for controlling fuel cells or fuel cell systems
- H01M8/043—Processes for controlling fuel cells or fuel cell systems applied during specific periods
- H01M8/04302—Processes for controlling fuel cells or fuel cell systems applied during specific periods applied during start-up
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04298—Processes for controlling fuel cells or fuel cell systems
- H01M8/04313—Processes for controlling fuel cells or fuel cell systems characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function
- H01M8/04537—Electric variables
- H01M8/04544—Voltage
- H01M8/04552—Voltage of the individual fuel cell
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04298—Processes for controlling fuel cells or fuel cell systems
- H01M8/04313—Processes for controlling fuel cells or fuel cell systems characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function
- H01M8/04537—Electric variables
- H01M8/04574—Current
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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
Abstract
The application provides a method and a device for controlling the startup of a hydrogen fuel cell stack and electronic equipment, wherein the method comprises the following steps: responding to a starting instruction, acquiring real-time monolithic voltage fed back by a monolithic cell in the hydrogen fuel cell stack in real time, and purging the anode of the hydrogen fuel cell stack with hydrogen; after the hydrogen purging is finished, air is supplied to the cathode of the hydrogen fuel cell stack, and compensation current required to be compensated at corresponding time is calculated based on the real-time monolithic voltage and the target monolithic voltage; the target monolithic voltage is preset based on the open circuit voltage of the monolithic battery; and calculating the target load-pulling current actually required by the corresponding moment based on the compensation current and the idle current of the hydrogen fuel cell stack in the idle state, and starting the hydrogen fuel cell stack by adopting the target load-pulling current. The application can give consideration to the use safety/service life, the starting speed and the starting success rate of the hydrogen fuel cell stack.
Description
Technical Field
The application relates to the field of new energy, in particular to a method and a device for controlling the startup of a hydrogen fuel cell stack and electronic equipment.
Background
For the hydrogen fuel cell stack to be started, after the hydrogen purging of the anode is finished, the hydrogen fuel cell stack needs to be started with a certain pulling load current. In the related art, a hydrogen fuel cell stack is usually started by adopting a fixed load current, so that the use safety, the service life, the starting speed and the starting success rate of the hydrogen fuel cell stack are difficult to be simultaneously considered.
Disclosure of Invention
The application provides a method and a device for controlling the startup of a hydrogen fuel cell stack and electronic equipment, which can give consideration to the safety in use, the service life, the startup speed and the startup success rate of the hydrogen fuel cell stack.
According to an aspect of an embodiment of the present application, there is disclosed a hydrogen fuel cell stack start-up control method including:
responding to a starting instruction, acquiring real-time monolithic voltage fed back by a monolithic cell in the hydrogen fuel cell stack in real time, and purging the anode of the hydrogen fuel cell stack with hydrogen;
after the hydrogen purging is finished, air is supplied to the cathode of the hydrogen fuel cell stack, and compensation current required to be compensated at corresponding time is calculated based on the real-time monolithic voltage and the target monolithic voltage; the target monolithic voltage is preset based on an open circuit voltage of the monolithic battery;
And calculating a target load current actually required by the corresponding moment based on the compensation current and the idle current of the hydrogen fuel cell stack in the idle state, and starting the hydrogen fuel cell stack by adopting the target load current.
According to an aspect of an embodiment of the present application, there is disclosed a hydrogen fuel cell stack start-up control apparatus including:
the starting response module is configured to respond to a starting instruction, acquire real-time monolithic voltage fed back by the monolithic cells in the hydrogen fuel cell stack in real time, and purge hydrogen from the anode of the hydrogen fuel cell stack;
the compensation current calculation module is configured to supply air to the cathode of the hydrogen fuel cell stack after the hydrogen purging is finished, and calculate the compensation current required to be compensated at the corresponding moment based on the real-time monolithic voltage and the target monolithic voltage; the target monolithic voltage is preset based on an open circuit voltage of the monolithic battery;
and the load current starting module is configured to calculate a target load current actually required at a corresponding moment based on the compensation current and the idle current of the hydrogen fuel cell stack in the idle state, and start the hydrogen fuel cell stack by adopting the target load current.
In an exemplary embodiment of the application, the compensation current calculation module is configured to:
calculating the average single-chip voltage of the single-chip battery at the corresponding moment based on the real-time single-chip voltage;
a voltage difference between the average monolithic voltage and the target monolithic voltage is obtained, and the compensation current is calculated based on the voltage difference.
In an exemplary embodiment of the application, the compensation current calculation module is configured to:
calculating the minimum monolithic voltage of the monolithic battery at the corresponding moment based on the real-time monolithic voltage;
a voltage difference between the minimum monolithic voltage and the target monolithic voltage is obtained, and the compensation current is calculated based on the voltage difference.
In an exemplary embodiment of the application, the pull-load current start module is configured to:
and calculating the current sum between the compensation current and the idle current to obtain the target load current.
In an exemplary embodiment of the application, the initiation response module is configured to:
responding to the starting instruction, and detecting whether the pile-in air pressure of the cathode exceeds a preset pressure threshold value;
if the detection confirms that the pressure of the piled air does not exceed the pressure threshold, controlling a back pressure valve to be closed, and purging the anode with hydrogen at a first purging pressure and a first purging duration;
If the detection confirms that the pressure of the piled air exceeds the pressure threshold, controlling the back pressure valve to be opened, and purging the anode with hydrogen at a second purging pressure and a second purging duration; the second purge pressure is greater than the first purge pressure, and the second purge time period is greater than the first purge time period.
In an exemplary embodiment of the application, the initiation response module is configured to:
detecting whether a high potential exists or not based on an initial single-chip voltage of the single-chip battery before starting and a preset voltage threshold value;
if the detection confirms that the high potential exists, the purging pressure is increased to a third purging pressure, and the purging duration is increased to a third purging duration; the third purge pressure is greater than the second purge pressure, and the third purge time period is greater than the second purge time period.
In an exemplary embodiment of the application, the pressure threshold is preset based on a standard atmospheric pressure.
According to an aspect of an embodiment of the present application, an electronic device is disclosed, including: one or more processing units; a storage unit configured to store one or more programs that, when executed by the one or more processors, cause the electronic device to implement any of the above embodiments.
According to an aspect of an embodiment of the present application, there is disclosed a computer-readable storage medium having stored thereon computer-readable instructions, which when executed by a processor of a computer, cause the computer to perform any of the above embodiments.
According to an aspect of embodiments of the present application, there is provided a computer program product or computer program comprising computer instructions stored in a computer readable storage medium. The computer instructions are read from the computer-readable storage medium by a processor of a computer device, and executed by the processor, cause the computer device to perform the methods provided in the various alternative implementations described above.
In the embodiment of the application, a starting instruction is responded, the real-time monolithic voltage fed back by the monolithic battery in the hydrogen fuel cell stack is obtained in real time, and the anode of the hydrogen fuel cell stack is purged with hydrogen; after the hydrogen purging is finished, air is supplied to the cathode of the hydrogen fuel cell stack, and compensation current required to be compensated at corresponding time is calculated based on the real-time monolithic voltage and the target monolithic voltage; the target monolithic voltage is preset based on the open circuit voltage of the monolithic battery; and calculating the target load-pulling current actually required by the corresponding moment based on the compensation current and the idle current of the hydrogen fuel cell stack in the idle state, and starting the hydrogen fuel cell stack by adopting the target load-pulling current. In this way, the compensation current obtained by calculation in the embodiment of the application can reflect the difference between the real-time single-chip voltage of the single-chip battery and the preset target single-chip voltage in real time. Therefore, the target load-pulling current calculated based on the compensation current and the idle current can dynamically adapt the single-chip voltage of the single-chip battery to approach the target single-chip voltage, so that the condition that the single-chip voltage is too small or too large in the starting process is avoided, and the use safety/service life, the starting speed and the starting success rate of the hydrogen fuel cell stack are considered.
Other features and advantages of the application will be apparent from the following detailed description, or may be learned by the practice of the application.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application as claimed.
Drawings
The above and other objects, features and advantages of the present application will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings.
Fig. 1 shows a flowchart of a hydrogen fuel cell stack start-up control method according to an embodiment of the present application.
Fig. 2 shows a detailed flow chart of hydrogen purging control of the anode at startup of a hydrogen fuel cell stack according to one embodiment of the application.
Fig. 3 shows a schematic diagram of the variation of the monolithic voltage when the anode is purged with hydrogen at a fixed purge pressure as provided by the related art according to one embodiment of the present application.
Fig. 4 shows a schematic diagram of the variation of the monolithic voltage when the anode is purged with hydrogen at varying purge pressure provided by the present application, according to one embodiment of the present application.
Fig. 5 shows a detailed flow chart of calculating a target pull-up current and starting a hydrogen fuel cell stack using the target pull-up current in accordance with one embodiment of the present application.
Fig. 6 is a schematic diagram showing a variation of a monolithic voltage when starting a hydrogen fuel cell stack in a fixed pull-up current manner provided by the related art according to an embodiment of the present application.
Fig. 7 is a schematic diagram showing the variation of the monolithic voltage when the hydrogen fuel cell stack is started in a dynamic current carrying manner according to an embodiment of the present application.
Fig. 8 shows a block diagram of a hydrogen fuel cell stack start-up control device according to an embodiment of the application.
FIG. 9 shows a hardware diagram of an electronic device according to one embodiment of the application.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments may be embodied in many forms and should not be construed as limited to the examples set forth herein; rather, these example embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art. The drawings are merely schematic illustrations of the present application and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus a repetitive description thereof will be omitted.
Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more example embodiments. In the following description, numerous specific details are provided to give a thorough understanding of example embodiments of the application. One skilled in the relevant art will recognize, however, that the application may be practiced without one or more of the specific details, or with other methods, components, steps, etc. In other instances, well-known structures, methods, implementations, or operations are not shown or described in detail to avoid obscuring aspects of the application.
Some of the block diagrams shown in the figures are functional entities and do not necessarily correspond to physically or logically separate entities. These functional entities may be implemented in software or in one or more hardware modules or integrated circuits or in different networks and/or processor devices and/or microcontroller devices.
The hydrogen fuel cell stack may be mounted on an automobile, a submarine, or a rail vehicle to be used as a power system, or may be used alone as a generator. Hydrogen fuel cell stacks typically comprise a plurality of individual cells. During start-up of a hydrogen fuel cell stack, it is generally necessary to supply sufficient hydrogen gas to the anode as fuel and sufficient air or oxygen to the cathode as oxidant.
Before the hydrogen fuel cell stack is started, oxygen contained in the cathode gradually permeates to the anode due to the problem of air tightness, so that an oxyhydrogen interface layer exists in the anode, and the condition of high potential of the single-chip cell is caused.
When the hydrogen fuel cell stack is to be started, the anode is first purged with hydrogen to provide high purity hydrogen and the monolithic voltage of the monolithic cell is reduced, and then air or oxygen is supplied to the cathode. And after the hydrogen purging is finished, starting the hydrogen fuel cell stack by adopting a certain load current. When the hydrogen fuel cell stack is started by adopting the pull load current, the voltage of the single-chip battery can rise firstly and then decline to finally tend to be stable, and in the rising process, the single-chip battery can also have the high-potential condition.
The high potential caused by the oxyhydrogen interface layer and the high potential caused by the pulling load current can cause the damage to the use safety and the service life of the hydrogen fuel cell stack. Therefore, the method reduces the duration of high potential in the starting process of the hydrogen fuel cell stack, and has important significance for the use safety and the service life of the hydrogen fuel cell stack.
When the hydrogen fuel cell stack is started, if the pulling load current is too small, the high potential can exist for a long time, and the starting time of the hydrogen fuel cell stack can be too long; if the pulling current is too large, the voltage of the single-chip battery drops too fast, and when the voltage of the single-chip battery is too low, the starting failure of the hydrogen fuel battery stack is easily caused. Therefore, in order to achieve the safety/service life, the starting speed and the starting success rate of the hydrogen fuel cell stack, how to control the pull-load current is important.
In the related art, a hydrogen fuel cell stack is typically started with a fixed pull-up current. Under different working environments, the single-chip voltage of the single-chip battery has different initial states and increase and decrease characteristics, so that the fixed pulling load current is sometimes too small and sometimes too large, and the safety in use, the service life, the starting speed and the starting success rate of the hydrogen fuel cell stack are difficult to be considered. As can be seen from the above, the related art has a drawback that it is difficult to achieve a safe use, a long service life, a high start-up speed, and a high start-up success rate of the hydrogen fuel cell stack.
In view of overcoming the above-described drawbacks of the related art, the present application provides a hydrogen fuel cell stack start-up control method, an exemplary implementation of which is a control system of a hydrogen fuel cell stack. Fig. 1 shows a flowchart of a hydrogen fuel cell stack start-up control method provided by the application. Referring to fig. 1, the method provided by the application comprises the following steps:
step S110, responding to a starting instruction, acquiring real-time monolithic voltage fed back by a monolithic cell in the hydrogen fuel cell stack in real time, and purging the anode of the hydrogen fuel cell stack with hydrogen;
Step S120, after the hydrogen purging is finished, supplying air to the cathode of the hydrogen fuel cell stack, and calculating compensation current required to be compensated at corresponding time based on the real-time monolithic voltage and the target monolithic voltage; the target monolithic voltage is preset based on the open circuit voltage of the monolithic battery;
and step S130, calculating the target load current actually required at the corresponding moment based on the compensation current and the idle current of the hydrogen fuel cell stack in the idle state, and starting the hydrogen fuel cell stack by adopting the target load current.
Specifically, in the embodiment of the application, after receiving a start instruction, the control system of the hydrogen fuel cell stack starts to purge hydrogen to the anode, and reduces the oxyhydrogen interface layer existing in the anode while supplying enough hydrogen to the anode. After the hydrogen purging is finished, air is supplied to the cathode, and a certain pulling load current is adopted to start the hydrogen fuel cell stack.
In order to start the hydrogen fuel cell stack by adopting proper pulling load current, the control system of the hydrogen fuel cell stack can obtain real-time monolithic voltage fed back by the monolithic battery in real time through a voltage sensor arranged in the hydrogen fuel cell stack after receiving a starting instruction.
The target single-chip voltage is set in advance based on the open-circuit voltage of the single-chip battery. The target monolithic voltage is used to indicate the voltage that the monolithic cell should reach during start-up of the hydrogen fuel cell stack. Thus, by targeting the monolithic voltage, the high potential caused by the pull-up current can be limited.
The voltage difference between the real-time monolithic voltage and the target monolithic voltage at each moment can be calculated by taking the target monolithic voltage as a reference. And further combining the resistance of the single-chip battery or the equivalent resistance of the hydrogen fuel cell stack, and calculating to obtain the current corresponding to the voltage difference, namely obtaining the compensation current required to be compensated at the corresponding moment.
And after the compensation current at the corresponding moment is calculated, superposing the compensation current with the idle current required by the hydrogen fuel cell stack in the idle state, so as to calculate the target load-pulling current actually required at the corresponding moment, and starting the hydrogen fuel cell stack by adopting the target load-pulling current.
Therefore, the compensation current obtained by calculation in the embodiment of the application can reflect the difference between the real-time single-chip voltage of the single-chip battery and the preset target single-chip voltage in real time. Therefore, the target load-pulling current calculated based on the compensation current and the idle current can dynamically adapt the single-chip voltage of the single-chip battery to approach the target single-chip voltage, so that the condition that the single-chip voltage is too small or too large in the starting process is avoided, and the use safety/service life, the starting speed and the starting success rate of the hydrogen fuel cell stack are considered.
In one embodiment, the open circuit voltage of the single-cell is set directly to the target single-cell voltage.
In one embodiment, since the high potential is easily generated even when the single-chip voltage of the single-chip battery is too close to the open-circuit voltage, the open-circuit voltage is reduced to a certain level to avoid the single-chip voltage rising to a level too close to the open-circuit voltage, and the obtained voltage value is used as the target single-chip voltage. For example: the open circuit voltage is 0.95V, the target monolithic voltage is set to 0.85V.
In one embodiment, calculating the compensation current for the compensation required at the corresponding time based on the real-time monolithic voltage and the target monolithic voltage comprises:
calculating the average single-chip voltage of the single-chip battery at the corresponding moment based on the real-time single-chip voltage;
a voltage difference between the average monolithic voltage and the target monolithic voltage is obtained, and a compensation current is calculated based on the voltage difference.
In this embodiment, an average monolithic voltage corresponding to the real-time monolithic voltage is used to calculate the compensation current required to be compensated at the corresponding time.
Specifically, after the real-time single-chip voltage of each single-chip battery at the time t is obtained, the average value of the obtained real-time single-chip voltage is calculated, and the average single-chip voltage of the single-chip battery at the time t is obtained. And then, the average monolithic voltage at the time t is subjected to difference with the target monolithic voltage, so that the voltage difference at the time t is obtained. And then further combining the resistance of the single-chip battery or the equivalent resistance of the hydrogen fuel cell stack to obtain the compensation current required to be compensated at the moment t.
In one embodiment, calculating the compensation current for the compensation required at the corresponding time based on the real-time monolithic voltage and the target monolithic voltage comprises:
calculating the minimum monolithic voltage of the monolithic battery at the corresponding moment based on the real-time monolithic voltage;
a voltage difference between the minimum monolithic voltage and the target monolithic voltage is obtained, and a compensation current is calculated based on the voltage difference.
In this embodiment, the compensation current required to be compensated at the corresponding time is calculated by using the minimum monolithic voltage corresponding to the real-time monolithic voltage.
Specifically, after the real-time single-chip voltage of each single-chip battery at the time t is obtained, the minimum value of the single-chip voltage is screened out, and the minimum single-chip voltage of the single-chip battery at the time t is obtained. And then, the minimum monolithic voltage at the time t is subjected to difference with the target monolithic voltage, so that the voltage difference at the time t is obtained. And then further combining the resistance of the single-chip battery or the equivalent resistance of the hydrogen fuel cell stack to obtain the compensation current required to be compensated at the moment t.
In an embodiment, the idle current density of the hydrogen fuel cell stack in the idle state may be obtained in advance, and then the idle current of the hydrogen fuel cell stack may be calculated by further combining the effective area of the hydrogen fuel cell stack.
In one embodiment, the hydrogen fuel cell stack may be pre-controlled to be in an idle state, and then the idle current of the hydrogen fuel cell stack may be measured.
In one embodiment, calculating the target load current actually required at the corresponding time based on the compensation current and the idle current of the hydrogen fuel cell stack in the idle state includes:
and calculating the current sum between the compensation current and the idle current to obtain the target load-pulling current.
In this embodiment, after the compensation current at the corresponding time is calculated, the compensation current is summed with the idle current, so as to obtain the target load current at the corresponding time.
In one embodiment, calculating the target load current actually required at the corresponding time based on the compensation current and the idle current of the hydrogen fuel cell stack in the idle state includes:
correcting the compensation current based on the voltage difference between the target monolithic voltage and the open circuit voltage to obtain corrected compensation current;
and calculating the current sum between the corrected compensation current and the idle current to obtain the target load current.
Considering that if the target monolithic voltage is too close to the open circuit voltage (for example, the open circuit voltage is directly set as the target monolithic voltage), if the calculated compensation current is directly added to the idle current, the sum of the obtained currents can cause the monolithic voltage in the starting process to be too close to the open circuit voltage, which is easy to cause high potential. Therefore, in this embodiment, after the compensation current at the corresponding time is calculated, the compensation current is corrected based on the voltage difference between the target monolithic voltage and the open circuit voltage, so as to obtain the corrected compensation current. And then, superposing the corrected compensation current and the idle current to obtain the target load current. In the correction process, the smaller the voltage difference between the target monolithic voltage and the open circuit voltage is, the larger the correction amplitude of the compensation current is.
In one embodiment, purging the anode of the hydrogen fuel cell stack with hydrogen comprises:
responding to a starting instruction, and detecting whether the pile-in air pressure of the cathode exceeds a preset pressure threshold value;
if the detected and confirmed stack air pressure does not exceed the pressure threshold, the back pressure valve is controlled to be closed, and the anode is purged with hydrogen at the first purging pressure and the first purging duration;
if the detected and confirmed stack air pressure exceeds the pressure threshold, controlling the back pressure valve to be opened, and purging the anode with hydrogen at a second purging pressure and a second purging duration; the second purge pressure is greater than the first purge pressure and the second purge time period is greater than the first purge time period.
In this embodiment, after receiving the start-up command, the control system of the hydrogen fuel cell stack detects the in-stack air pressure of the cathode to determine whether the in-stack air pressure exceeds a preset pressure threshold.
If the cathode in-stack air pressure does not exceed the pressure threshold, indicating that the air in the cathode is sufficiently small before the hydrogen fuel cell stack is started, it is considered that the oxygen contained in the cathode is rarely permeated to the anode. In this case, therefore, the back pressure valve is controlled to be closed, and the anode is purged with hydrogen at the first purge pressure P1 and the first purge duration T1, so that high-purity hydrogen can be rapidly supplied in the anode.
If the cathode in-stack air pressure exceeds the pressure threshold, this indicates that more air is present in the cathode prior to starting the hydrogen fuel cell stack, and thus that more oxygen is likely to permeate the anode. In this case, therefore, it is necessary to increase the purge pressure and the purge duration of the anode, that is, to hydrogen purge the anode at the second purge pressure P2 and the second purge duration T2 (wherein the second purge pressure P2 is greater than the first purge pressure P1 and the second purge duration T2 is greater than the first purge duration T1), in order to rapidly supply high-purity hydrogen in the anode. In addition, because the purging pressure of the anode is increased, in order to ensure that the air pressure difference between the anode and the cathode is kept stable, the back pressure valve is opened to a certain opening degree, so that certain air is supplied to the cathode in the process of purging the anode with hydrogen, and the air pressure of the cathode in the pile is increased.
Ideally, the cathode should contain as little air or oxygen as possible prior to start-up of the hydrogen fuel cell stack, and its in-stack air pressure should be at negative pressure, i.e., its in-stack air pressure should be less than one normal atmospheric pressure.
Thus, in one embodiment, the pressure threshold is preset based on a standard atmospheric pressure. Specifically, if the standard atmospheric pressure is 101.325kPa, the pressure threshold value may be set directly equal to the standard atmospheric pressure, that is, the pressure threshold value may be set directly to 101.325kPa; the pressure threshold may be set to approximately 100kPa at one standard atmospheric pressure, further from the standpoint of simplifying data processing in engineering practice.
In an embodiment, the method provided by the application further includes:
detecting whether a high potential exists or not based on an initial single-chip voltage of the single-chip battery before starting and a preset voltage threshold value;
if the detection confirms that the high potential exists, the purging pressure is increased to a third purging pressure, and the purging duration is increased to a third purging duration; the third purge pressure is greater than the second purge pressure, and the third purge time period is greater than the second purge time period.
In this embodiment, before the hydrogen fuel cell stack is started, the monolithic voltage of the monolithic cell is detected, and the initial monolithic voltage of the monolithic cell before the startup is obtained. The initial monolithic voltage of each monolithic cell is then compared to a preset voltage threshold to detect the presence of a high potential, more specifically, to detect the presence of a high potential caused by an oxyhydrogen interface. Wherein, the voltage threshold for detecting the high potential caused by the oxyhydrogen interface is smaller than the target monolithic voltage for limiting the high potential caused by the pull-load current.
If the initial monolithic voltage is larger than the voltage threshold, detecting to confirm that the high potential caused by the oxyhydrogen interface exists, increasing the purging pressure to a third purging pressure P3, increasing the purging duration to a third purging duration T3, and then purging the anode with hydrogen by the third purging pressure P3 and the third purging duration T3, so that the time of the high potential caused by the oxyhydrogen interface is further reduced, and the use safety/service life of the hydrogen fuel cell stack is further prolonged. Wherein the third purge pressure P3 is greater than the second purge pressure P2, and the third purge duration T3 is greater than the second purge duration T2.
Otherwise, if any initial single-chip voltage is not greater than the voltage threshold, detecting and confirming that the high potential caused by the oxyhydrogen interface does not exist, and continuously maintaining the original purging pressure and the original purging duration.
Fig. 2 shows a detailed flow chart of hydrogen purging control of the anode at startup of the hydrogen fuel cell stack in an embodiment of the application.
Referring to fig. 2, in one embodiment, a start-up command is triggered after the hydrogen fuel cell stack is powered up. After receiving the start-up command, the control system of the hydrogen fuel cell stack detects the in-stack air pressure of the cathode to confirm whether it exceeds 100kPa.
If the pressure of the air entering the stack of the cathode does not exceed 100kPa, the back pressure valve is controlled to be closed at the posture Pos0, and the anode is purged with hydrogen according to the first purge pressure P1 and the first purge duration T1, so that high-purity hydrogen is rapidly supplied in the anode.
If the pressure of the air entering the stack of the cathode exceeds 100kPa, the back pressure valve is opened by a certain opening degree in the posture Pos1, so that a certain amount of air is supplied to the cathode in the process of hydrogen purging the anode, the pressure of the air entering the stack of the cathode is increased, and the purging pressure and the purging duration of the anode are increased, namely, the anode is purged with hydrogen according to the second purging pressure P2 and the second purging duration T2, so that high-purity hydrogen is rapidly supplied to the anode.
Before the hydrogen fuel cell stack is started, the single-chip voltage of the single-chip cell is detected, and the initial single-chip voltage V0 of the single-chip cell before the starting is obtained. Then comparing the initial single-chip voltage V0 with a preset voltage threshold V1, and if a certain initial single-chip voltage V0 is larger than the voltage threshold V1, confirming that a high potential caused by an oxyhydrogen interface exists; otherwise, if any initial monolithic voltage V0 is not greater than the voltage threshold V1, it is confirmed that there is no high potential caused by the oxyhydrogen interface.
If the detection confirms that the high potential caused by the oxyhydrogen interface exists, the purging pressure is increased to a third purging pressure P3, the purging duration is increased to a third purging duration T3, and then the anode is purged with hydrogen under the third purging pressure P3 and the third purging duration T3, so that the time of the high potential caused by the oxyhydrogen interface is further reduced, and the use safety/service life of the hydrogen fuel cell stack is further prolonged.
Wherein the third purge pressure P3 is greater than the second purge pressure P2, and the third purge duration T3 is greater than the second purge duration T2. The second purge pressure P2 is greater than the first purge pressure P1, and the second purge duration T2 is greater than the first purge duration T1.
After the hydrogen purging of the anode is completed, the target pull-up current may be calculated to start the hydrogen fuel cell stack.
Fig. 3 shows a schematic diagram of the variation of the monolithic voltage when the anode is purged with hydrogen at a fixed purge pressure as provided by the related art in one embodiment. FIG. 4 is a schematic diagram of the variation of the monolithic voltage when the anode is purged with hydrogen at varying purge pressures provided by the present application in one embodiment.
Referring to fig. 3 and 4, in one embodiment, when the monolithic voltage is greater than 0.4V, it is considered that there is a high potential in the hydrogen fuel cell stack caused by the oxyhydrogen interface.
As can be seen from fig. 3, when the anode is purged with hydrogen at a fixed purge pressure as provided by the related art, the monolithic voltage is greater than 0.4V for a period of about 2 to 6 seconds. That is, the related art provides a way that the high potential caused by the oxyhydrogen interface lasts about 4 seconds.
As can be seen from fig. 4, when the anode is purged with hydrogen at varying purge pressure, the monolithic voltage is greater than 0.4V for a period of about 2.5-4.5 seconds. That is, in the manner provided by the present application, the high potential caused by the oxyhydrogen interface lasts about 2 seconds.
Therefore, compared with the mode of purging the anode with the fixed purging pressure provided by the related art, the mode of purging the anode with the variable purging pressure provided by the application reduces the duration of high potential caused by an oxyhydrogen interface, thereby improving the use safety and the service life of the hydrogen fuel cell stack.
Fig. 5 shows a detailed flow chart of calculating a target pull-up current and starting up a hydrogen fuel cell stack using the target pull-up current in an embodiment of the application.
Referring to fig. 5, in one embodiment, the target monolithic voltage V2 is preset based on the open circuit voltage of the monolithic battery and is exceeded during hydrogen purgingAcquiring real-time single-chip voltage fed back by the single-chip battery in real time in the process, and then acquiring average single-chip voltage V corresponding to the real-time single-chip voltage mean Or the minimum monolithic voltage V corresponding to the real-time monolithic voltage min 。
After the hydrogen purge is completed, the formula delta is followed I ＝V2-V mean Or according to formula delta I ＝V2-V min Calculating the compensation current delta required to be compensated at the corresponding moment in real time I 。
Then according to formula I start ＝I 0 +δ I Calculating to obtain the target load current I at the corresponding moment start And adopts a dynamically-changed target load current I start The hydrogen fuel cell stack is started. Wherein I is 0 Is the idle current of the hydrogen fuel cell stack in the idle state.
Fig. 6 is a schematic diagram showing the variation of the monolithic voltage when starting the hydrogen fuel cell stack with a fixed pull-up current as provided by the related art in one embodiment. Fig. 7 is a schematic diagram showing the variation of the monolithic voltage when the hydrogen fuel cell stack is started by using the method of dynamically varying the pull-load current according to the present application in one embodiment.
Referring to fig. 6 and 7, in one embodiment, when the monolithic voltage is greater than 0.85V, it is considered that there is a high potential in the hydrogen fuel cell stack caused by the pull-up current.
As can be seen from fig. 6, when the hydrogen fuel cell stack is started up with a fixed pull-up current as provided by the related art, the monolithic voltage is greater than 0.85V for a period of about 3.5 to 9.5 seconds. That is, in the manner provided by the related art, the high potential caused by the pull-up current lasts about 6 seconds, and the start-up is actually completed only about 9.5 seconds.
As can be seen from fig. 7, when the hydrogen fuel cell stack is started in a manner of dynamically changing the pull-load current provided by the present application, the monolithic voltage is greater than 0.85V in a period of about 2.5 to 6.5 seconds. That is, in the mode provided by the application, the high potential caused by the pull-up current lasts about 4 seconds, and the start-up is really completed in about 6.5 seconds.
Therefore, compared with the mode of starting the hydrogen fuel cell stack in a fixed load-pulling current provided by the related technology, the method of starting the hydrogen fuel cell stack in a dynamic load-pulling current provided by the application reduces the duration of high potential caused by the load-pulling current and completes the starting more quickly, thereby improving the use safety/service life and starting speed of the hydrogen fuel cell stack. In addition, when the fixed pulling load current adopted by the related technology is too large, the starting failure of the hydrogen fuel cell stack is also easily caused, so the method for starting the hydrogen fuel cell stack by the dynamic change of the pulling load current provided by the application also improves the starting success rate of the hydrogen fuel cell stack.
Fig. 8 shows a block diagram of a hydrogen fuel cell stack start-up control apparatus according to an embodiment of the present application, the apparatus including:
the starting response module 210 is configured to respond to the starting instruction, acquire the real-time monolithic voltage fed back by the monolithic cells in the hydrogen fuel cell stack in real time, and purge the anode of the hydrogen fuel cell stack with hydrogen;
the compensation current calculation module 220 is configured to supply air to the cathode of the hydrogen fuel cell stack after the hydrogen purging is finished, and calculate a compensation current required to be compensated at a corresponding time based on the real-time monolithic voltage and the target monolithic voltage; the target monolithic voltage is preset based on the open circuit voltage of the monolithic battery;
The load current starting module 230 is configured to calculate a target load current actually required at a corresponding time based on the compensation current and an idle current of the hydrogen fuel cell stack in an idle state, and start the hydrogen fuel cell stack using the target load current.
In an exemplary embodiment of the present application, the compensation current calculation module 220 is configured to:
calculating the average single-chip voltage of the single-chip battery at the corresponding moment based on the real-time single-chip voltage;
a voltage difference between the average monolithic voltage and the target monolithic voltage is obtained, and a compensation current is calculated based on the voltage difference.
In an exemplary embodiment of the present application, the compensation current calculation module 220 is configured to:
calculating the minimum monolithic voltage of the monolithic battery at the corresponding moment based on the real-time monolithic voltage;
a voltage difference between the minimum monolithic voltage and the target monolithic voltage is obtained, and a compensation current is calculated based on the voltage difference.
In an exemplary embodiment of the present application, the pull-up current start module 230 is configured to:
and calculating the current sum between the compensation current and the idle current to obtain the target load-pulling current.
In an exemplary embodiment of the present application, the initiation response module 210 is configured to:
Responding to a starting instruction, and detecting whether the pile-in air pressure of the cathode exceeds a preset pressure threshold value;
if the detected and confirmed stack air pressure does not exceed the pressure threshold, the back pressure valve is controlled to be closed, and the anode is purged with hydrogen at the first purging pressure and the first purging duration;
if the detected and confirmed stack air pressure exceeds the pressure threshold, controlling the back pressure valve to be opened, and purging the anode with hydrogen at a second purging pressure and a second purging duration; the second purge pressure is greater than the first purge pressure and the second purge time period is greater than the first purge time period.
In an exemplary embodiment of the present application, the initiation response module 210 is configured to:
detecting whether a high potential exists or not based on an initial single-chip voltage of the single-chip battery before starting and a preset voltage threshold value;
if the detection confirms that the high potential exists, the purging pressure is increased to a third purging pressure, and the purging duration is increased to a third purging duration; the third purge pressure is greater than the second purge pressure, and the third purge time period is greater than the second purge time period.
In an exemplary embodiment of the application, the pressure threshold is preset based on a standard atmospheric pressure.
An electronic device 30 according to an embodiment of the present application is described below with reference to fig. 9. The electronic device 30 shown in fig. 9 is merely an example, and should not be construed as limiting the functionality and scope of use of embodiments of the present application.
As shown in fig. 9, the electronic device 30 is in the form of a general purpose computing device. Components of electronic device 30 may include, but are not limited to: at least one processing unit 310, at least one memory unit 320, a bus 330 connecting the different system components, including the memory unit 320 and the processing unit 310.
Wherein the storage unit 320 stores program code that can be executed by the processing unit 310, such that the processing unit 310 performs the steps according to various exemplary embodiments of the present invention described in the description section of the exemplary method described above in the present specification. For example, the processing unit 310 may perform the various steps as shown in fig. 1.
Storage unit 320 may include readable media in the form of volatile storage units, such as Random Access Memory (RAM) 3201 and/or cache memory 3202, and may further include Read Only Memory (ROM) 3203.
The storage unit 320 may also include a program/utility 3204 having a set (at least one) of program modules 3205, such program modules 3205 including, but not limited to: an operating system, one or more application programs, other program modules, and program data, each or some combination of which may include an implementation of a network environment.
Bus 330 may be one or more of several types of bus structures including a memory unit bus or memory unit controller, a peripheral bus, an accelerated graphics port, a processing unit, or a local bus using any of a variety of bus architectures.
The electronic device 30 may also communicate with one or more external devices 400 (e.g., keyboard, pointing device, bluetooth device, etc.), one or more devices that enable a user to interact with the electronic device 30, and/or any device (e.g., router, modem, etc.) that enables the electronic device 30 to communicate with one or more other computing devices. Such communication may occur through an input/output (I/O) interface 350. An input/output (I/O) interface 350 is connected to the display unit 340. Also, electronic device 30 may communicate with one or more networks such as a Local Area Network (LAN), a Wide Area Network (WAN), and/or a public network, such as the Internet, through network adapter 360. As shown, the network adapter 360 communicates with other modules of the electronic device 30 over the bus 330. It should be appreciated that although not shown, other hardware and/or software modules may be used in connection with electronic device 30, including, but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, data backup storage systems, and the like.
From the above description of embodiments, those skilled in the art will readily appreciate that the example embodiments described herein may be implemented in software, or may be implemented in software in combination with the necessary hardware. Thus, the technical solution according to the embodiments of the present application may be embodied in the form of a software product, which may be stored in a non-volatile storage medium (may be a CD-ROM, a U-disk, a mobile hard disk, etc.) or on a network, and includes several instructions to cause a computing device (may be a personal computer, a server, a terminal device, or a network device, etc.) to perform the method according to the embodiments of the present application.
In an exemplary embodiment of the present application, there is also provided a computer-readable storage medium having stored thereon computer-readable instructions, which, when executed by a processor of a computer, cause the computer to perform the method described in the method embodiment section above.
According to an embodiment of the present application, there is also provided a program product for implementing the method in the above method embodiment, which may employ a portable compact disc read only memory (CD-ROM) and comprise program code and may be run on a terminal device, such as a personal computer. However, the program product of the present application is not limited thereto, and in this document, a readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.
The program product may employ any combination of one or more readable media. The readable medium may be a readable signal medium or a readable storage medium. The readable storage medium can be, for example, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or a combination of any of the foregoing. More specific examples (a non-exhaustive list) of the readable storage medium would include the following: an electrical connection having one or more wires, a portable disk, a hard disk, random Access Memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.
The computer readable signal medium may include a data signal propagated in baseband or as part of a carrier wave with readable program code embodied therein. Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination of the foregoing. A readable signal medium may also be any readable medium that is not a readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.
Program code embodied on a readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.
Program code for carrying out operations of the present application may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, C++ or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computing device, partly on the user's device, as a stand-alone software package, partly on the user's computing device, partly on a remote computing device, or entirely on the remote computing device or server. In the case of remote computing devices, the remote computing device may be connected to the user computing device through any kind of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or may be connected to an external computing device (e.g., connected via the Internet using an Internet service provider).
It should be noted that although in the above detailed description several modules or units of a device for action execution are mentioned, such a division is not mandatory. Indeed, the features and functions of two or more modules or units described above may be embodied in one module or unit in accordance with embodiments of the application. Conversely, the features and functions of one module or unit described above may be further divided into a plurality of modules or units to be embodied.
Furthermore, although the steps of the methods of the present application are depicted in the accompanying drawings in a particular order, this is not required to either imply that the steps must be performed in that particular order, or that all of the illustrated steps be performed, to achieve desirable results. Additionally or alternatively, certain steps may be omitted, multiple steps combined into one step to perform, and/or one step decomposed into multiple steps to perform, etc.
From the above description of embodiments, those skilled in the art will readily appreciate that the example embodiments described herein may be implemented in software, or may be implemented in software in combination with the necessary hardware. Thus, the technical solution according to the embodiments of the present application may be embodied in the form of a software product, which may be stored in a non-volatile storage medium (may be a CD-ROM, a U-disk, a mobile hard disk, etc.) or on a network, and includes several instructions to cause a computing device (may be a personal computer, a server, a mobile terminal, or a network device, etc.) to perform the method according to the embodiments of the present application.
Other embodiments of the application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of the application following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the application pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the application being indicated by the following claims.
Claims (10)
1. A hydrogen fuel cell stack start-up control method, characterized by comprising:
responding to a starting instruction, acquiring real-time monolithic voltage fed back by a monolithic cell in the hydrogen fuel cell stack in real time, and purging the anode of the hydrogen fuel cell stack with hydrogen;
after the hydrogen purging is finished, air is supplied to the cathode of the hydrogen fuel cell stack, and compensation current required to be compensated at corresponding time is calculated based on the real-time monolithic voltage and the target monolithic voltage; the target monolithic voltage is preset based on an open circuit voltage of the monolithic battery;
and calculating a target load current actually required by the corresponding moment based on the compensation current and the idle current of the hydrogen fuel cell stack in the idle state, and starting the hydrogen fuel cell stack by adopting the target load current.
2. The method of claim 1, wherein calculating a compensation current for compensation required at a corresponding time based on the real-time monolithic voltage and a target monolithic voltage comprises:
calculating the average single-chip voltage of the single-chip battery at the corresponding moment based on the real-time single-chip voltage;
A voltage difference between the average monolithic voltage and the target monolithic voltage is obtained, and the compensation current is calculated based on the voltage difference.
3. The method of claim 1, wherein calculating a compensation current for compensation required at a corresponding time based on the real-time monolithic voltage and a target monolithic voltage comprises:
calculating the minimum monolithic voltage of the monolithic battery at the corresponding moment based on the real-time monolithic voltage;
a voltage difference between the minimum monolithic voltage and the target monolithic voltage is obtained, and the compensation current is calculated based on the voltage difference.
4. The method according to claim 1, wherein calculating a target pull-up current actually required at a corresponding time based on the compensation current and an idle current of the hydrogen fuel cell stack in an idle state, comprises:
and calculating the current sum between the compensation current and the idle current to obtain the target load current.
5. The method of claim 1, wherein purging the anode of the hydrogen fuel cell stack with hydrogen gas comprises:
responding to the starting instruction, and detecting whether the pile-in air pressure of the cathode exceeds a preset pressure threshold value;
If the detection confirms that the pressure of the piled air does not exceed the pressure threshold, controlling a back pressure valve to be closed, and purging the anode with hydrogen at a first purging pressure and a first purging duration;
if the detection confirms that the pressure of the piled air exceeds the pressure threshold, controlling the back pressure valve to be opened, and purging the anode with hydrogen at a second purging pressure and a second purging duration; the second purge pressure is greater than the first purge pressure, and the second purge time period is greater than the first purge time period.
6. The method of claim 5, wherein the method further comprises:
detecting whether a high potential exists or not based on an initial single-chip voltage of the single-chip battery before starting and a preset voltage threshold value;
if the detection confirms that the high potential exists, the purging pressure is increased to a third purging pressure, and the purging duration is increased to a third purging duration; the third purge pressure is greater than the second purge pressure, and the third purge time period is greater than the second purge time period.
7. The method of claim 5, wherein the pressure threshold is preset based on a standard atmospheric pressure.
8. A hydrogen fuel cell stack start-up control apparatus, characterized by comprising:
the starting response module is configured to respond to a starting instruction, acquire real-time monolithic voltage fed back by the monolithic cells in the hydrogen fuel cell stack in real time, and purge hydrogen from the anode of the hydrogen fuel cell stack;
the compensation current calculation module is configured to supply air to the cathode of the hydrogen fuel cell stack after the hydrogen purging is finished, and calculate the compensation current required to be compensated at the corresponding moment based on the real-time monolithic voltage and the target monolithic voltage; the target monolithic voltage is preset based on an open circuit voltage of the monolithic battery;
and the load current starting module is configured to calculate a target load current actually required at a corresponding moment based on the compensation current and the idle current of the hydrogen fuel cell stack in the idle state, and start the hydrogen fuel cell stack by adopting the target load current.
9. An electronic device, comprising:
one or more processing units;
a storage unit for storing one or more programs that, when executed by the one or more processing units, cause the electronic device to implement the method of any of claims 1-7.
10. A computer readable storage medium having stored thereon computer readable instructions which, when executed by a processor of a computer, cause the computer to perform the method of any of claims 1 to 7.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117334961A (en) * | 2023-12-01 | 2024-01-02 | 广东云韬氢能科技有限公司 | Start control method and device for fuel cell system, electronic equipment and medium |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007287674A (en) * | 2006-03-20 | 2007-11-01 | Toshiba Fuel Cell Power Systems Corp | Fuel cell power generation system, its starting-up method and starting-up program, and performance recovery method and performance recovery program |
| CN105047965A (en) * | 2015-07-03 | 2015-11-11 | 西南交通大学 | Proton exchange membrane fuel cell (PEMFC) stack shutdown strategy considering voltage balance |
| CN111952631A (en) * | 2020-08-17 | 2020-11-17 | 河南豫氢动力有限公司 | Low-temperature cold start control method for vehicle fuel cell system |
| CN114695921A (en) * | 2022-04-18 | 2022-07-01 | 中国第一汽车股份有限公司 | Control method and control device for low-temperature start of fuel cell system |
| CN116404211A (en) * | 2023-05-25 | 2023-07-07 | 佛山市清极能源科技有限公司 | Method for controlling starting voltage of fuel cell system |
-
2023
- 2023-08-08 CN CN202310998500.8A patent/CN116895790B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007287674A (en) * | 2006-03-20 | 2007-11-01 | Toshiba Fuel Cell Power Systems Corp | Fuel cell power generation system, its starting-up method and starting-up program, and performance recovery method and performance recovery program |
| CN105047965A (en) * | 2015-07-03 | 2015-11-11 | 西南交通大学 | Proton exchange membrane fuel cell (PEMFC) stack shutdown strategy considering voltage balance |
| CN111952631A (en) * | 2020-08-17 | 2020-11-17 | 河南豫氢动力有限公司 | Low-temperature cold start control method for vehicle fuel cell system |
| CN114695921A (en) * | 2022-04-18 | 2022-07-01 | 中国第一汽车股份有限公司 | Control method and control device for low-temperature start of fuel cell system |
| CN116404211A (en) * | 2023-05-25 | 2023-07-07 | 佛山市清极能源科技有限公司 | Method for controlling starting voltage of fuel cell system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117334961A (en) * | 2023-12-01 | 2024-01-02 | 广东云韬氢能科技有限公司 | Start control method and device for fuel cell system, electronic equipment and medium |
| CN117334961B (en) * | 2023-12-01 | 2024-01-30 | 广东云韬氢能科技有限公司 | Start control method and device for fuel cell system, electronic equipment and medium |
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