CN110774941B - Control method and control device for hydrogen fuel cell, and computer storage medium - Google Patents
Control method and control device for hydrogen fuel cell, and computer storage medium Download PDFInfo
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- CN110774941B CN110774941B CN201911078725.1A CN201911078725A CN110774941B CN 110774941 B CN110774941 B CN 110774941B CN 201911078725 A CN201911078725 A CN 201911078725A CN 110774941 B CN110774941 B CN 110774941B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/30—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling fuel cells
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
- B60L3/0053—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to fuel cells
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/40—Application of hydrogen technology to transportation, e.g. using fuel cells
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Abstract
The invention discloses a control method of a hydrogen fuel cell, which comprises the following steps: when a starting instruction is received, acquiring state parameters corresponding to the hydrogen fuel cell, wherein the state parameters comprise at least one of the stack temperature, the hydrogen inlet pressure, the hydrogen leakage concentration, the external power supply voltage, the fan state and the stack ventilation state of the hydrogen fuel cell; determining the state of the hydrogen fuel cell according to the state parameter; starting the hydrogen fuel cell when the hydrogen fuel cell is in a normal state. The invention also discloses a control device and a computer storage medium of the hydrogen fuel cell, which can detect the state of the hydrogen fuel cell before starting the hydrogen fuel cell and start the hydrogen fuel cell when the state of the hydrogen fuel cell is normal, thereby avoiding using the hydrogen fuel cell in an abnormal state and ensuring the safe use of the hydrogen fuel cell.
Description
Technical Field
The present invention relates to the field of fuel cell technology, and in particular, to a method and apparatus for controlling a hydrogen fuel cell, and a computer storage medium.
Background
With the development of new energy technology, hydrogen fuel cells have been applied to the field of new energy automobiles. However, since hydrogen itself is flammable and explosive, if the hydrogen fuel cell is started up when the cell stack is in an undesirable state, there is a great potential safety hazard, and in severe cases, even car damage and death can occur.
The above is only for the purpose of assisting understanding of the technical aspects of the present invention, and does not represent an admission that the above is prior art.
Disclosure of Invention
The main object of the present invention is to provide a control method, a control device and a computer storage medium for a hydrogen fuel cell, which are intended to prevent the hydrogen fuel cell in an abnormal state from being used and ensure the safe use of the hydrogen fuel cell by detecting the state of the hydrogen fuel cell before starting the hydrogen fuel cell and starting the hydrogen fuel cell when the state of the hydrogen fuel cell is normal.
To achieve the above object, the present invention provides a control method of a hydrogen fuel cell, including:
when a starting instruction is received, acquiring state parameters corresponding to the hydrogen fuel cell, wherein the state parameters comprise at least one of the stack temperature, the hydrogen inlet pressure, the hydrogen leakage concentration, the external power supply voltage, the fan state and the stack ventilation state of the hydrogen fuel cell;
determining the state of the hydrogen fuel cell according to the state parameter;
starting the hydrogen fuel cell when the hydrogen fuel cell is in a normal state.
Optionally, after the step of starting the hydrogen fuel cell when the hydrogen fuel cell is in a normal state, the method further includes:
acquiring operating parameters of the hydrogen fuel cell;
judging whether the hydrogen fuel cell has an operation fault according to the operation parameters;
and when the hydrogen fuel cell has an operation failure, performing failure treatment on the hydrogen fuel cell.
Optionally, the step of performing fault handling on the hydrogen fuel cell when the hydrogen fuel cell has an operation fault includes:
when the hydrogen fuel cell has an operation fault, acquiring a fault level corresponding to the operation parameter;
determining a fault processing operation corresponding to the fault level;
and carrying out fault treatment on the hydrogen fuel cell according to the fault treatment operation corresponding to the fault grade.
Optionally, the operating parameter includes at least one of a stack voltage, a stack current, and a stack temperature of the hydrogen fuel cell.
Optionally, the fault handling of the hydrogen fuel cell comprises at least one of:
shutting down the hydrogen fuel cell;
reducing the operating power of the stack of hydrogen fuel cells;
reducing a hydrogen gas inlet pressure of the hydrogen fuel cell.
Optionally, after the step of determining the state of the hydrogen fuel cell according to the state parameter, the control method of the hydrogen fuel cell further includes:
outputting failure prompt information when the hydrogen fuel cell is in an abnormal state;
or, the step of performing the fault processing on the hydrogen fuel cell is executed, and the fault prompt information is output.
Optionally, after the step of acquiring the state parameter corresponding to the hydrogen fuel cell when the start instruction is received, the method further includes:
displaying the corresponding state parameters of the hydrogen fuel cell;
and when receiving an adjusting instruction aiming at the state parameters, adjusting the hydrogen fuel cell according to the adjusting instruction.
Optionally, the step of starting the hydrogen fuel cell comprises:
opening a hydrogen inlet valve and an air inlet valve of the hydrogen fuel cell, and starting a cell stack of the hydrogen fuel cell.
Further, in order to achieve the above object, the present invention provides a control device for a hydrogen fuel cell, comprising: a memory, a processor and a control program for a hydrogen fuel cell stored on the memory and operable on the processor, the control program for a hydrogen fuel cell, when executed by the processor, implementing the steps of the control method for a hydrogen fuel cell as set forth in any one of the preceding claims.
Further, to achieve the above object, the present invention also provides a computer storage medium having stored thereon a control program of a hydrogen fuel cell, which when executed by a processor, realizes the steps of the control method of a hydrogen fuel cell as described in any one of the above.
According to the control method, the control device and the computer storage medium of the hydrogen fuel cell provided by the embodiment of the invention, when a starting instruction is received, the state parameters corresponding to the hydrogen fuel cell are obtained, wherein the state parameters comprise at least one of the stack temperature, the hydrogen inlet pressure, the hydrogen leakage concentration, the external power supply voltage, the fan state and the stack ventilation state of the hydrogen fuel cell, the state of the hydrogen fuel cell is determined according to the state parameters, and the hydrogen fuel cell is started when the hydrogen fuel cell is in a normal state. The invention detects the state of the hydrogen fuel cell before starting the hydrogen fuel cell, and starts the hydrogen fuel cell when the state of the hydrogen fuel cell is normal, thereby avoiding using the hydrogen fuel cell in an abnormal state and ensuring the safe use of the hydrogen fuel cell.
Drawings
Fig. 1 is a schematic terminal structure diagram of a hardware operating environment according to an embodiment of the present invention;
fig. 2 is a schematic flow chart of a control method of a hydrogen fuel cell of the invention according to a first embodiment;
fig. 3 is a schematic flowchart of a control method of a hydrogen fuel cell of the present invention according to a second embodiment;
fig. 4 is a schematic flowchart of a control method of a hydrogen fuel cell of the invention according to a third embodiment;
fig. 5 is a schematic flow chart of a control method of a hydrogen fuel cell of the present invention according to a fourth embodiment.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The main solution of the embodiment of the invention is as follows:
when a starting instruction is received, acquiring state parameters corresponding to the hydrogen fuel cell, wherein the state parameters comprise at least one of the stack temperature, the hydrogen inlet pressure, the hydrogen leakage concentration, the external power supply voltage, the fan state and the stack ventilation state of the hydrogen fuel cell;
determining the state of the hydrogen fuel cell according to the state parameter;
starting the hydrogen fuel cell when the hydrogen fuel cell is in a normal state.
Since hydrogen gas has the characteristics of flammability and explosiveness in the prior art, if a hydrogen fuel cell is started under the condition that a cell stack is in an undesirable state, a great potential safety hazard exists, and even vehicle damage and death can be caused in serious cases.
The invention provides a solution, which detects the state of a hydrogen fuel cell before starting the hydrogen fuel cell, and starts the hydrogen fuel cell when the state of the hydrogen fuel cell is normal, thereby avoiding using the hydrogen fuel cell in an abnormal state and ensuring the safe use of the hydrogen fuel cell.
As shown in fig. 1, fig. 1 is a schematic terminal structure diagram of a hardware operating environment according to an embodiment of the present invention.
The terminal of the embodiment of the invention can be a control device, such as a master control device of an automobile, a DC isolation controller and the like.
As shown in fig. 1, the terminal may include: a processor 1001, such as a CPU, a user interface 1003, a memory 1004, a communication bus 1002. Wherein a communication bus 1002 is used to enable connective communication between these components. The user interface 1003 may include a Display screen (Display), an input unit such as a Keyboard (Keyboard), and the optional user interface 1003 may also include a standard wired interface, a wireless interface. The memory 1004 may be a high-speed RAM memory or a non-volatile memory (e.g., a disk memory). The memory 1004 may alternatively be a storage device separate from the processor 1001.
Those skilled in the art will appreciate that the terminal structure shown in fig. 1 is not intended to be limiting and may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components.
As shown in fig. 1, the memory 1004, which is a kind of computer storage medium, may include therein a user interface module and a control program of the hydrogen fuel cell.
In the terminal shown in fig. 1, the user interface 1003 is mainly used for connecting a client (user side) and performing data communication with the client; and the processor 1001 may be configured to call up the control program of the hydrogen fuel cell stored in the memory 1004 and perform the following operations:
when a starting instruction is received, acquiring state parameters corresponding to the hydrogen fuel cell, wherein the state parameters comprise at least one of the stack temperature, the hydrogen inlet pressure, the hydrogen leakage concentration, the external power supply voltage, the fan state and the stack ventilation state of the hydrogen fuel cell;
determining the state of the hydrogen fuel cell according to the state parameter;
starting the hydrogen fuel cell when the hydrogen fuel cell is in a normal state.
Further, the processor 1001 may call the control program of the hydrogen fuel cell stored in the memory 1004, and also perform the following operations:
acquiring operating parameters of the hydrogen fuel cell;
judging whether the hydrogen fuel cell has an operation fault according to the operation parameters;
and when the hydrogen fuel cell has an operation failure, performing failure treatment on the hydrogen fuel cell.
Further, the processor 1001 may call the control program of the hydrogen fuel cell stored in the memory 1004, and also perform the following operations:
when the hydrogen fuel cell has an operation fault, acquiring a fault level corresponding to the operation parameter;
determining a fault processing operation corresponding to the fault level;
and carrying out fault treatment on the hydrogen fuel cell according to the fault treatment operation corresponding to the fault grade.
Further, the processor 1001 may call the control program of the hydrogen fuel cell stored in the memory 1004, and also perform the following operations:
at least one of a stack voltage, a stack current, and a stack temperature of the hydrogen fuel cell is obtained.
Further, the processor 1001 may call the control program of the hydrogen fuel cell stored in the memory 1004, and also perform the following operations:
shutting down the hydrogen fuel cell;
reducing the operating power of the stack of hydrogen fuel cells;
reducing a hydrogen gas inlet pressure of the hydrogen fuel cell.
Further, the processor 1001 may call the control program of the hydrogen fuel cell stored in the memory 1004, and also perform the following operations:
outputting failure prompt information when the hydrogen fuel cell is in an abnormal state;
or, the step of performing the fault processing on the hydrogen fuel cell is executed, and the fault prompt information is output.
Further, the processor 1001 may call the control program of the hydrogen fuel cell stored in the memory 1004, and also perform the following operations:
displaying the corresponding state parameters of the hydrogen fuel cell;
and when receiving an adjusting instruction aiming at the state parameters, adjusting the hydrogen fuel cell according to the adjusting instruction.
Further, the processor 1001 may call the control program of the hydrogen fuel cell stored in the memory 1004, and also perform the following operations:
opening a hydrogen inlet valve and an air inlet valve of the hydrogen fuel cell, and starting a cell stack of the hydrogen fuel cell.
Referring to fig. 2, in the first embodiment, the control method of the hydrogen fuel cell includes the steps of:
step S10, when a start-up instruction is received, acquiring the state parameter corresponding to the hydrogen fuel cell,
wherein the state parameters comprise at least one of stack temperature, hydrogen inlet pressure, hydrogen leakage concentration, external power supply voltage, fan state and stack ventilation state of the hydrogen fuel cell;
in the present embodiment, the embodiment is terminated by a control device of the hydrogen fuel cell, for example, a general control device of an automobile, a DC isolation controller, and the like, which is used for controlling the on/off of the hydrogen fuel cell and the adjustment of the state of the hydrogen fuel cell.
The hydrogen fuel cell is a power generation device that directly converts chemical energy of hydrogen and oxygen into electric energy. The basic principle is the reverse reaction of electrolyzed water, hydrogen and oxygen are supplied to the anode and cathode respectively, and after the hydrogen diffuses out through the anode and reacts with the electrolyte, electrons are released to reach the cathode through an external load.
The hydrogen fuel cell includes several single cells, each of which consists of positive and negative electrodes made of active carbon and set in electrolyte solution, electrolyte, hydrogen fuel channel, air channel, etc. And a plurality of single batteries are connected in series to form a battery stack.
When the hydrogen fuel cell works, the hydrogen gas of the negative electrode is continuously supplied from the outside, the air of the positive electrode is supplied, and under the action of a catalyst (platinum, porous graphite, and the like), the following reactions are generated:
negative electrode: 2H2 → 4H + +4e-
And (3) positive electrode: o2+4H + +4e- → 2H2O
The negative electrode is under the action of catalyst, the electrons in hydrogen atoms are separated out, under the attraction of the positive electrode, current is formed in an external circuit, hydrogen ions of the electrons are lost, the hydrogen ions, oxygen and the electrons are combined into water at the positive electrode, the oxygen can be obtained from the air, and the hydrogen fuel cell can continuously supply electric energy as long as hydrogen is continuously supplied and the water is taken away.
When a starting instruction triggered by a user is received, a control device of the hydrogen fuel cell firstly acquires a state parameter corresponding to the hydrogen fuel cell. The state parameter can be obtained by detecting a detection device related to the hydrogen fuel cell, wherein the detection device can comprise at least one of a temperature sensor, a pressure sensor, a hydrogen concentration sensor and a voltmeter, so that the state parameter corresponding to the hydrogen fuel cell can be accurately obtained. Correspondingly, the state parameter may include at least one of a stack temperature, a hydrogen inlet pressure, a hydrogen leakage concentration, an external power supply voltage, a fan state, and a stack ventilation state of the hydrogen fuel cell. Wherein the hydrogen inlet pressure is the pressure at the hydrogen inlet; the fan state comprises a fan normal operation state and a fan fault state, the fan is in the normal operation state when the fan can normally operate, and the fan is in the fault state if the fan can not normally operate; the ventilation state of the cell stack comprises an exhaust valve state which is an exhaust normal state, an exhaust valve state which is an exhaust fault state, an air inlet valve state which is an air inlet normal state and an air inlet valve state which is an air inlet fault state.
Step S20, determining the state of the hydrogen fuel cell according to the state parameter;
in the present embodiment, the state of the hydrogen fuel cell is determined based on the detected state parameter of the hydrogen fuel cell. For example, when the temperature of the cell stack is less than or equal to a preset temperature, the temperature of the cell stack is determined to be normal, when the pressure of the hydrogen inlet is within a preset pressure interval, the pressure of the hydrogen inlet is determined to be normal, when the concentration of the hydrogen leakage is less than or equal to a preset concentration, the concentration of the hydrogen leakage is determined to be normal, and when the voltage of the external power supply is within a preset voltage interval, the voltage of the external power supply is determined to be normal. When the temperature of the cell stack, the pressure of a hydrogen inlet, the leakage concentration of hydrogen, the voltage of an external power supply, a fan and the ventilation of the cell stack are judged to be normal according to the state parameters, the hydrogen fuel cell can be determined to be in a normal state, and otherwise, the hydrogen fuel cell is judged to be in an abnormal state.
It should be understood that the preset temperature, the preset pressure interval, the preset concentration, and the preset voltage interval may be preset by an engineer according to the actual operating conditions of the hydrogen fuel cell. For example, the preset temperature may be set to 58 deg.c. When the temperature of the cell stack is less than or equal to the preset temperature, the hydrogen pressure is in the preset pressure interval, the hydrogen leakage concentration is less than or equal to the preset concentration, and the voltage of the external power supply is in the preset voltage interval, the hydrogen fuel cell is in a normal working environment.
Step S30, starting the hydrogen fuel cell when the hydrogen fuel cell is in a normal state.
In the present embodiment, when it is determined that the hydrogen fuel cell is in the normal state based on the state parameters, the hydrogen fuel cell is started up to output the electric energy to the outside safely and stably. Specifically, at the time of starting the hydrogen fuel cell, the hydrogen gas intake valve and the air intake valve of the hydrogen fuel cell may be opened, and the stack of the hydrogen fuel cell may be started. So that the hydrogen and air start to chemically react to provide electric power and output the electric power to the outside through the electrodes of the stack. In addition, when the hydrogen fuel cell is in an abnormal state, the hydrogen fuel cell is not started, the safety of the hydrogen fuel cell and a user is ensured, and fault prompt information is output to prompt the user that the hydrogen fuel cell is abnormal. The fault prompt information can be generated according to the state parameters of the hydrogen fuel cell which judges the abnormal hydrogen fuel, so as to inform the user of the specific reason of the abnormal hydrogen fuel cell, and the user can quickly make corresponding abnormal processing operation.
In the technical scheme disclosed in the embodiment, before the hydrogen fuel cell is started, the state of the hydrogen fuel cell is detected, and the hydrogen fuel cell is started when the state of the hydrogen fuel cell is normal, so that the hydrogen fuel cell in an abnormal state is avoided being used, and the safe use of the hydrogen fuel cell is ensured.
In the second embodiment, as shown in fig. 3, on the basis of the embodiment shown in fig. 2, after step S30, the method further includes:
step S40, acquiring an operation parameter of the hydrogen fuel cell;
in the present embodiment, the operating parameters of the hydrogen fuel cell may also be acquired after the hydrogen fuel cell is started. The operating parameter includes at least one of a stack voltage, a stack current, and a stack temperature of the hydrogen fuel cell. The operation parameters can also be obtained by detecting data of devices such as a temperature sensor, a voltmeter and an ammeter arranged in the hydrogen fuel cell.
Step S50, judging whether the hydrogen fuel cell has operation failure according to the operation parameters;
in the present embodiment, after the operation parameters of the hydrogen fuel cell are acquired, whether an operation failure occurs in the hydrogen fuel cell is determined according to the operation parameters. For example, when the stack voltage of the hydrogen fuel cell is not in the preset stack voltage interval, it is determined that the stack voltage of the hydrogen fuel cell is abnormal, when the stack current of the hydrogen fuel cell is not in the preset stack current interval, it is determined that the stack current of the hydrogen fuel cell is abnormal, and when the stack temperature of the hydrogen fuel cell is not in the preset stack temperature interval, it is determined that the stack temperature of the hydrogen fuel cell is abnormal. And if the operation parameters are not abnormal, judging that the hydrogen fuel cell has no operation fault.
And a step S60 of performing fault processing on the hydrogen fuel cell when the hydrogen fuel cell has an operation fault.
In the present embodiment, when it is determined that an operational failure has occurred in the hydrogen fuel cell based on the operational parameters of the hydrogen fuel cell stack, the hydrogen fuel is subjected to corresponding failure processing. The fault handling includes at least one of shutting down the hydrogen fuel cell, reducing the operating power of the stack of hydrogen fuel cells, and reducing the hydrogen gas inlet pressure of the hydrogen fuel cell. By carrying out fault treatment on the hydrogen fuel, the operation parameters of the hydrogen fuel cell are recovered to a normal state so as to ensure the normal operation of the hydrogen fuel cell. And if the hydrogen fuel cell has no operation failure, the hydrogen fuel cell is not subjected to failure treatment.
In addition, when the hydrogen fuel cell has an operation failure and failure processing is performed, failure prompt information can be output to prompt a user that the hydrogen fuel cell has an operation failure. The fault prompt message can be displayed on the automobile instrument panel with the hydrogen fuel cell or output in a voice mode. The fault prompt message can be a fixed preset prompt tone, and can also be generated according to the operation parameters in the abnormal state so as to prompt a user about the specific reason of the operation fault of the hydrogen fuel cell.
In the technical scheme disclosed in the embodiment, the operation parameters of the hydrogen fuel cell are acquired, whether the hydrogen fuel cell has an operation fault or not is judged according to the operation parameters, and fault processing is executed when the hydrogen fuel cell has the fault, so that the hydrogen fuel cell in an abnormal operation state is avoided, and the safe operation of the hydrogen fuel cell is ensured.
In the third embodiment, as shown in fig. 4, on the basis of the embodiment shown in any one of fig. 2 to 3, step S60 includes:
step S61, when the hydrogen fuel cell has operation failure, acquiring the failure grade corresponding to the operation parameter;
in this embodiment, when the hydrogen fuel cell fails and needs to be subjected to fault handling, a fault level corresponding to an operation parameter may be obtained, where the operation parameter includes at least one of a stack voltage, a stack current, and a stack temperature of the hydrogen fuel cell. The failure levels may include primary, secondary, tertiary, etc. When the fault level corresponding to the operation parameter is obtained, different fault levels can be determined according to different operation parameters, for example, when the temperature of the battery stack is abnormal, the fault level can be determined to be one level, when the voltage of the battery stack is abnormal, the fault level can be determined to be two levels, and when the current of the battery stack is abnormal, the fault level can be determined to be three levels. Of course, the fault level may also be determined based on the number of abnormal operating parameters, for example, when only the stack temperature is abnormal, the fault level may be determined as one level, when both the stack temperature and the stack voltage are abnormal, the fault level may be determined as two levels, and when both the stack temperature and the stack voltage and the stack current are abnormal, the fault level may be determined as three levels. Alternatively, the failure level may be determined based on the degree of abnormality of the same operation parameter, for example, when the stack temperature is abnormal, if the difference between the stack temperature and the boundary value of the preset stack temperature section is larger, the failure level is higher, and if the difference between the stack temperature and the boundary value of the preset stack temperature section is larger, the failure level is lower.
Step S62, determining the fault handling operation corresponding to the fault grade;
and step S63, performing a fault processing on the hydrogen fuel cell according to a fault processing operation corresponding to the fault level.
In this embodiment, after determining the fault level corresponding to the operation parameter, different fault handling operations are determined according to the different fault levels, and then the fault handling operation corresponding to the fault level is performed on the hydrogen fuel cell. For example, when the failure level is one level, it indicates that the failure is small, which may be caused by unstable operation of the hydrogen fuel cell, and at this time, the processing may not be performed first, and after a preset time period, if the failure of the operation parameter still exists, the hydrogen inlet pressure of the hydrogen fuel cell is reduced. When the failure level is two-stage, the hydrogen gas inlet pressure of the hydrogen fuel cell can be directly reduced. When the fault level is three, the working power of the cell stack of the hydrogen fuel cell can be reduced. When the failure level is four stages, the hydrogen fuel cell is shut down. And determining the severity of the fault according to different fault grades so as to execute corresponding fault processing operation and ensure the safe operation of the hydrogen fuel cell.
In the technical scheme disclosed in this embodiment, when the hydrogen fuel cell has an operation fault, the fault level is determined according to the operation parameters, and then the corresponding fault handling operation is executed according to different fault levels, so that more effective fault handling is realized, and the efficiency of fault handling is improved.
In the fourth embodiment, as shown in fig. 5, after step S10, on the basis of the embodiment shown in any one of fig. 2 to 4, the method further includes:
step S01, displaying the corresponding state parameters of the hydrogen fuel cell;
in this embodiment, after the acquired state parameters corresponding to the hydrogen fuel cell are obtained, the obtained state parameters may be displayed, for example, when a user drives a vehicle running the hydrogen fuel cell, the state parameters may be displayed on an instrument panel of a driving seat to inform the user of the state of the hydrogen fuel cell, so that the user can determine whether further adjustment of the hydrogen fuel cell is needed according to experience.
And step S02, when receiving the adjusting instruction aiming at the state parameter, adjusting the hydrogen fuel cell according to the adjusting instruction.
In the present embodiment, after the state parameters corresponding to the hydrogen fuel cell are displayed, if an adjustment instruction for the state parameters is received from the user, the hydrogen fuel cell is adjusted according to the adjustment instruction. For example, when an adjustment instruction for the hydrogen inlet pressure is received, the hydrogen inlet pressure is adjusted according to the pressure adjustment value in the adjustment instruction, and when an adjustment instruction for the stack temperature is received, the temperature control device is controlled to cool the stack according to the temperature adjustment value in the adjustment instruction. And adjusting the hydrogen fuel cell according to the adjustment instruction so that the state of the hydrogen fuel cell can be restored to a normal state, thereby ensuring the normal operation of the hydrogen fuel cell. Of course, when the hydrogen fuel cell is in operation, the corresponding operating parameters can also be displayed, so that when the hydrogen fuel cell is in operation, the state of the hydrogen fuel cell can also be adjusted.
In the technical scheme disclosed in the embodiment, the state parameters corresponding to the hydrogen fuel cell are displayed, and when the adjusting instruction is received, the hydrogen fuel cell is adjusted according to the adjusting instruction, so that the purpose of adjusting the hydrogen fuel cell according to the user requirement is realized, and the hydrogen fuel cell is more convenient to adjust.
Further, an embodiment of the present invention also provides a control device for a hydrogen fuel cell, including: a memory, a processor and a control program of the hydrogen fuel cell stored on the memory and operable on the processor, the control program of the hydrogen fuel cell implementing the steps of the control method of the hydrogen fuel cell as described in the above embodiments when executed by the processor.
Furthermore, an embodiment of the present invention also provides a computer storage medium having a control program for a hydrogen fuel cell stored thereon, where the control program for a hydrogen fuel cell, when executed by a processor, implements the steps of the control method for a hydrogen fuel cell according to the above embodiment.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) as described above and includes instructions for enabling a terminal device (e.g., a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (3)
1. A control method of a hydrogen fuel cell, characterized by comprising:
when a starting instruction is received, acquiring state parameters corresponding to the hydrogen fuel cell, wherein the state parameters comprise at least one of the stack temperature, the hydrogen inlet pressure, the hydrogen leakage concentration, the external power supply voltage, the fan state and the stack ventilation state of the hydrogen fuel cell;
the hydrogen inlet pressure is the pressure at the hydrogen inlet, the fan state comprises a fan normal operation state and a fan fault state, the fan is in a normal operation state when the fan can normally operate, otherwise, the fan is in a fault state, and the cell stack ventilation state comprises an exhaust valve state which is an exhaust normal state, an exhaust valve state which is an exhaust fault state, an air inlet valve state which is an air inlet normal state and an air inlet valve state which is an air inlet fault state;
if the temperature of the cell stack is less than or equal to a preset temperature, judging that the temperature of the cell stack is normal;
if the pressure of the hydrogen inlet is within a preset pressure interval, judging that the pressure of the hydrogen inlet is normal;
if the hydrogen leakage concentration is less than or equal to a preset concentration, judging that the hydrogen leakage concentration is normal;
if the voltage of the external power supply is within a preset voltage interval, judging that the voltage of the external power supply is normal;
when the temperature of the cell stack, the pressure of the hydrogen inlet, the leakage concentration of the hydrogen, the voltage of the external power supply, the fan and the ventilation of the cell stack are all normal according to the state parameters, determining that the hydrogen fuel cell is in a normal state;
outputting failure prompt information when the hydrogen fuel cell is in an abnormal state;
or, while executing the step of performing the failure processing on the hydrogen fuel cell, outputting the failure prompt information;
displaying the corresponding state parameters of the hydrogen fuel cell;
when an adjusting instruction for the state parameter is received, adjusting the hydrogen fuel cell according to the adjusting instruction;
when the hydrogen fuel cell is in a normal state, opening a hydrogen gas inlet valve and an air inlet valve of the hydrogen fuel cell, starting a cell stack of the hydrogen fuel cell, and starting the hydrogen fuel cell;
acquiring operation parameters of the hydrogen fuel cell, wherein the operation parameters comprise stack voltage, stack current and stack temperature of the hydrogen fuel cell;
judging whether the hydrogen fuel cell has an operation fault according to the operation parameters;
if the voltage of the cell stack is not in a preset cell stack voltage interval, judging that the voltage of the hydrogen fuel cell stack is abnormal;
if the current of the cell stack is not in a preset cell stack current interval, judging that the cell stack current of the hydrogen fuel cell is abnormal;
if the temperature of the cell stack is not in a preset cell stack temperature range, judging that the temperature of the cell stack of the hydrogen fuel cell is abnormal;
when the hydrogen fuel cell has an operation fault, determining a fault level according to the number of abnormal operation parameters;
if only the temperature of the battery stack is abnormal, determining the fault grade as a primary fault grade;
if the temperature of the battery stack and the voltage of the battery stack are abnormal, determining the fault grade as a secondary fault grade;
if the temperature of the battery stack, the voltage of the battery stack and the current of the battery stack are abnormal, determining that the fault level is a third-level fault level;
performing fault processing on the hydrogen fuel cell according to fault processing operation corresponding to the fault level;
wherein the fault handling comprises at least one of:
shutting down the hydrogen fuel cell;
reducing the operating power of the stack of hydrogen fuel cells;
reducing a hydrogen gas inlet pressure of the hydrogen fuel cell.
2. A control device for a hydrogen fuel cell, characterized by comprising: a memory, a processor and a control program for a hydrogen fuel cell stored on the memory and executable on the processor, the control program for a hydrogen fuel cell implementing the steps of the control method for a hydrogen fuel cell as claimed in claim 1 when executed by the processor.
3. A computer storage medium, characterized in that a control program of a hydrogen fuel cell is stored thereon, which when executed by a processor implements the steps of the control method of a hydrogen fuel cell according to claim 1.
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| CN111710888B (en) * | 2020-05-15 | 2022-07-26 | 山东华硕能源科技有限公司 | Start control method for vehicle-mounted fuel cell system |
| CN111890933A (en) * | 2020-06-11 | 2020-11-06 | 恒大恒驰新能源汽车研究院(上海)有限公司 | Battery management method and system for vehicle, vehicle and server |
| CN112026524A (en) * | 2020-09-16 | 2020-12-04 | 浙江吉利控股集团有限公司 | Fault diagnosis and processing method and system for fuel cell vehicle |
| CN115723634A (en) * | 2021-08-27 | 2023-03-03 | 宇通客车股份有限公司 | Fuel cell vehicle and method and system for detecting fault of hydrogen adding port thereof |
| CN113752862B (en) * | 2021-08-30 | 2023-08-22 | 三一汽车制造有限公司 | Fuel supply system, control method and control device, vehicle and medium |
| CN115986172B (en) * | 2023-03-17 | 2023-05-30 | 北京新研创能科技有限公司 | Monitoring system and method for hydrogen fuel cell |
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