CN112928312A - Power recovery method for fuel cell engine, related device and storage medium - Google Patents

Power recovery method for fuel cell engine, related device and storage medium Download PDF

Info

Publication number
CN112928312A
CN112928312A CN202110511424.4A CN202110511424A CN112928312A CN 112928312 A CN112928312 A CN 112928312A CN 202110511424 A CN202110511424 A CN 202110511424A CN 112928312 A CN112928312 A CN 112928312A
Authority
CN
China
Prior art keywords
fuel cell
cell engine
current
preset
engine
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN202110511424.4A
Other languages
Chinese (zh)
Other versions
CN112928312B (en
Inventor
时保帆
范明德
刘楠楠
朱洪超
修喜玲
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Weichai New Energy Power Technology Co ltd
Weichai Power Co Ltd
Original Assignee
Weichai Power Co Ltd
Weichai New Energy Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Weichai Power Co Ltd, Weichai New Energy Technology Co Ltd filed Critical Weichai Power Co Ltd
Priority to CN202110511424.4A priority Critical patent/CN112928312B/en
Publication of CN112928312A publication Critical patent/CN112928312A/en
Application granted granted Critical
Publication of CN112928312B publication Critical patent/CN112928312B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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
    • 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
    • H01M8/04303—Processes for controlling fuel cells or fuel cell systems applied during specific periods applied during shut-down
    • 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
    • H01M8/04559—Voltage of fuel cell stacks
    • 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
    • H01M8/04589—Current of fuel cell stacks
    • 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
    • H01M8/04694—Processes for controlling fuel cells or fuel cell systems characterised by variables to be controlled
    • H01M8/04858—Electric variables
    • H01M8/04895—Current
    • H01M8/0491—Current of fuel cell stacks
    • 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
    • H01M8/04694—Processes for controlling fuel cells or fuel cell systems characterised by variables to be controlled
    • H01M8/04858—Electric variables
    • H01M8/04925—Power, energy, capacity or load
    • H01M8/0494—Power, energy, capacity or load of fuel cell stacks
    • 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

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Fuel Cell (AREA)

Abstract

The application provides a power recovery method of a fuel cell engine, a related device and a storage medium, wherein the power recovery method of the fuel cell engine comprises the following steps: in the running process of a fuel cell engine, judging whether the ratio of the actual voltage value to the set value under the current is in a preset range or not, and continuing for a first preset time; and if the ratio of the actual voltage value to the set value under the current is judged to be within the preset range and lasts for the first preset time, starting a preset automatic recovery program, and recovering the power of the fuel cell engine by controlling the running state of the fuel cell engine, so that the aim of efficiently solving the problem of power reduction of the fuel cell engine is fulfilled.

Description

Power recovery method for fuel cell engine, related device and storage medium
Technical Field
The present disclosure relates to engine technologies, and in particular, to a power recovery method for a fuel cell engine, a related device, and a storage medium.
Background
The fuel cell is an ultimate power scheme of future automobiles due to the advantages of high energy conversion efficiency, zero pollution, stable operation, no noise and the like, becomes a research and development hotspot of related enterprises and units at home and abroad at present, and is in the initial stage of industrialization.
Currently, when an automobile equipped with a fuel cell engine is running, power is reduced, which may be caused by flooding of a fuel cell stack or reduction in activity of a catalyst on a membrane electrode. However, in the prior art, a maintenance worker is usually required to go to the site to perform problem troubleshooting or not perform treatment, and the efficiency is extremely low.
Disclosure of Invention
In view of the above, the present application provides a power recovery method for a fuel cell engine, a related apparatus and a storage medium, which can efficiently solve the problem of power reduction of the fuel cell engine during the operation of the fuel cell engine.
A first aspect of the present application provides a power recovery method of a fuel cell engine, including:
in the running process of a fuel cell engine, judging whether the ratio of the actual voltage value to the set value under the current is in a preset range or not, and continuing for a first preset time;
if the ratio of the actual voltage value to the set value under the current is judged to be within the preset range and lasts for the first preset time, judging whether the current load state of the power battery is smaller than a first threshold value or not;
if the load state of the power battery is judged to be smaller than the first threshold value, the loading current of the fuel battery engine and the rotating speed of the air compressor are increased, the fuel battery engine runs for a second preset time, and the cycle number is recorded as 1;
judging whether the load state of the power battery is smaller than a second threshold value and whether a preset shutdown condition is met;
if the load state of the power battery is judged to be smaller than a second threshold value and a preset shutdown condition is met, controlling the fuel battery engine to shut down and starting a preset purging program;
judging whether the shutdown frequency of the fuel cell engine is smaller than a third threshold value;
if the shutdown frequency of the fuel cell engine is judged to be less than the third threshold, after the fuel cell engine is restarted, judging whether the ratio of the actual voltage value to the set value under the current is within a preset range or not and lasting for a first preset time in the running process of the fuel cell engine;
if the shutdown frequency of the fuel cell engine is judged to be not less than a third threshold value, increasing the loading current of the fuel cell engine and the rotating speed of the air compressor, operating for a second preset time, and adding 1 to the cycle frequency;
judging whether the cycle number is greater than a fourth threshold value;
and if the cycle number is not larger than the fourth threshold value, returning to execute the operation process of the fuel cell engine, and judging whether the ratio of the actual voltage value to the set value under the current is within a preset range or not and continuing for a first preset time.
Optionally, the power recovery method for the fuel cell engine further includes:
and if the ratio of the actual voltage value to the set value under the current is judged not to be in the preset range, or the ratio of the actual voltage value to the set value under the current is in the preset range but does not last for the first preset time, controlling the fuel cell engine to continue to normally operate according to the original set program.
Optionally, the power recovery method for the fuel cell engine further includes:
and if the current load state of the power battery is judged to be not less than the first threshold value, controlling the fuel battery engine to continue to normally operate according to the original set program.
Optionally, the power recovery method for the fuel cell engine further includes:
and if the load state of the power battery is judged to be not less than the second threshold value and/or the preset shutdown condition is not met, controlling the fuel battery engine to continue to normally operate according to the original set program.
Optionally, the power recovery method for the fuel cell engine further includes:
and if the cycle number is judged to be larger than the fourth threshold value, controlling the fuel cell engine to continue to normally operate according to an original set program.
A second aspect of the present application provides a power recovery apparatus of a fuel cell engine, comprising:
the first judgment unit is used for judging whether the ratio of the actual voltage value to the set value under the current is in a preset range or not and lasting for a first preset time in the process of operating the fuel cell engine;
the second judging unit is used for judging whether the current load state of the power battery is smaller than a first threshold value or not if the first judging unit judges that the ratio of the actual voltage value to the set value under the current is within a preset range and lasts for a first preset time;
the first control unit is used for increasing the loading current of the fuel cell engine and the rotating speed of the air compressor if the second judgment unit judges that the load state of the power battery is smaller than the first threshold value, operating for a second preset time and recording the cycle number as 1;
the third judging unit is used for judging whether the load state of the power battery is smaller than a second threshold value and whether a preset shutdown condition is met;
the second control unit is used for controlling the fuel cell engine to shut down and starting a preset purging program if the load state of the power cell is smaller than a second threshold value and meets a preset shutdown condition, which is judged by the third judging unit;
a fourth judgment unit configured to judge whether or not the number of times of shutdown of the fuel cell engine is smaller than a third threshold;
the restarting unit is used for judging whether the ratio of the actual voltage value to the set value under the current is within a preset range or not and lasting for a first preset time in the process of running the fuel cell engine after restarting the fuel cell engine if the fourth judging unit judges that the shutdown frequency of the fuel cell engine is smaller than a third threshold;
the first control unit is further configured to increase a loading current of the fuel cell engine and a rotation speed of the air compressor, operate for a second preset time, and add 1 to the cycle number if the fourth determination unit determines that the shutdown number of the fuel cell engine is not less than a third threshold;
a fifth judging unit configured to judge whether the cycle number is greater than a fourth threshold;
and a returning unit, configured to, if the fifth determining unit determines that the cycle number is not greater than the fourth threshold, return to the execution of the fuel cell engine operation process, determine whether a ratio of the actual voltage value to the set value at the current is within a preset range, and continue for a first preset time.
Optionally, the power recovery device for a fuel cell engine further includes:
and the first operation unit is used for controlling the fuel cell engine to continuously operate normally according to the original set program if the first judgment unit judges that the ratio of the actual voltage value to the set value under the current is not in the preset range or the ratio of the actual voltage value to the set value under the current is in the preset range but does not last for the first preset time.
Optionally, the power recovery device for a fuel cell engine further includes:
and the second operation unit is used for controlling the fuel cell engine to continuously operate normally according to the original set program if the second judgment unit judges that the current load state of the power battery is not less than the first threshold value.
Optionally, the power recovery device for a fuel cell engine further includes:
and the third operation unit is used for controlling the fuel cell engine to continue to normally operate according to the original set program if the third judgment unit judges that the load state of the power battery is not less than the second threshold value and/or does not meet the preset shutdown condition.
Optionally, the power recovery device for a fuel cell engine further includes:
and the fourth operation unit is used for controlling the fuel cell engine to continue to normally operate according to an original set program if the fifth judgment unit judges that the cycle number is greater than a fourth threshold value.
A third aspect of the present application provides an electronic device comprising:
one or more processors;
a storage device having one or more programs stored thereon;
the one or more programs, when executed by the one or more processors, cause the one or more processors to implement the power recovery method for a fuel cell engine according to any one of the first aspect.
A fourth aspect of the present application provides a computer storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, implements the power recovery method for a fuel cell engine according to any one of the first aspect.
As can be seen from the above description, in a power recovery method for a fuel cell engine, a related device, and a storage medium provided by the present application, the power recovery method for a fuel cell engine includes: in the running process of a fuel cell engine, judging whether the ratio of the actual voltage value to the set value under the current is in a preset range or not, and continuing for a first preset time; and if the ratio of the actual voltage value to the set value under the current is judged to be within the preset range and lasts for the first preset time, starting a preset automatic recovery program, and recovering the power of the fuel cell engine by controlling the running state of the fuel cell engine, so that the aim of efficiently solving the problem of power reduction of the fuel cell engine is fulfilled.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a flowchart illustrating an embodiment of a method for recovering power of a fuel cell engine according to the present disclosure;
fig. 2 is a schematic diagram of a power recovery device of a fuel cell engine according to an embodiment of the present disclosure;
fig. 3 is a schematic diagram of an electronic device for implementing a power recovery method for a fuel cell engine according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the terms "first", "second", and the like, referred to in this application, are only used for distinguishing different devices, modules or units, and are not used for limiting the order or interdependence of functions performed by these devices, modules or units, but the terms "include", or any other variation thereof are intended to cover a non-exclusive inclusion, so that a process, method, article, or apparatus that includes a series of elements includes not only those elements but also other elements that are not explicitly listed, or includes elements inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The embodiment of the application provides a power recovery method of a fuel cell engine, as shown in fig. 1, specifically comprising the following steps:
s101, in the process of operating the fuel cell engine, judging whether the ratio of the actual voltage value to the set value under the current is within a preset range or not, and continuing for a first preset time.
Among them, the fuel cell engine is a highly efficient electrochemical energy conversion device, which can directly convert the chemical energy of hydrogen and oxygen in the air into electric energy, and the reaction product is water.
It is understood that the preset range and the first preset time are values summarized by technicians, experts and the like through experiments, tests and the like, and can be set and changed according to actual application conditions, subsequent experiment results, test results and the like, and the preset range and the first preset time are not limited herein.
It should be noted that, corresponding voltage values, that is, set values, at different currents may be set in the vehicle controller in advance, so that the power value of the fuel cell stack at the current may be calculated according to P = UI, and the power value of the fuel cell stack may be used as a power reference value of the fuel cell engine, and further, in the operation process of the fuel cell engine, whether the power of the current fuel engine is reduced may be determined according to whether the ratio of the actual voltage value at the current to the set value is within a preset range and lasts for a first preset time, and if the power of the current fuel engine is reduced, an automatic power recovery procedure should be executed, that is, step S102 is started.
Specifically, if it is determined that the ratio of the actual voltage value to the set value at the current is within the preset range and lasts for a first preset time, the step S102 is executed; if it is determined that the ratio of the actual voltage value to the set value at the current is not within the preset range or the ratio of the actual voltage value to the set value at the current is within the preset range but does not last for the first preset time, step S103 is executed.
And S102, judging whether the current load state of the power battery is smaller than a first threshold value.
The first threshold is a value summarized by technicians, experts and the like through experiments, tests and the like, and can be set and changed according to actual application conditions, subsequent experiment results, test results and the like, and the first threshold is not limited here.
Specifically, if the load state of the power battery is judged to be smaller than the first threshold, step S104 is executed; if the current load state of the power battery is not less than the first threshold, step S103 is executed.
And S103, controlling the fuel cell engine to continue to normally operate according to the original set program.
And S104, increasing the loading current of the fuel cell engine and the rotating speed of the air compressor, operating for a second preset time, and recording the cycle number as 1.
The second preset time is a value summarized by technicians, experts and the like through experiments, tests and the like, can be set and changed according to actual application conditions, subsequent experiment results, test results and the like, and is not limited here.
It can be understood that the rotating speed of the air compressor is increased, so that the problem of flooding of the fuel cell stack can be improved and even solved, and power recovery can be realized; the loading current of the fuel cell engine is improved, and the activity of the catalyst on the membrane electrode can be improved, so that the performance of the membrane electrode is improved, and the power recovery is realized.
And S105, judging whether the load state of the power battery is smaller than a second threshold value and whether a preset shutdown condition is met.
The second threshold is a value summarized by technicians, experts, and the like through experiments, tests, and the like, and can be set and changed according to actual application conditions, subsequent experiment results, test results, and the like, which is not limited herein.
Specifically, if it is determined that the load state of the power battery is smaller than the second threshold and the preset shutdown condition is met, step S106 is executed; if the load state of the power battery is not less than the second threshold or does not satisfy the preset shutdown condition, or the load state of the power battery is not less than the second threshold and does not satisfy the preset shutdown condition, step S103 is executed.
And S106, controlling the fuel cell engine to be shut down, and starting a preset purging program.
It should be noted that the preset purging program is a purging program set by a technician, an expert, and the like through an experiment, a test, and the like, and may be set and changed according to an actual application situation, a subsequent experiment result, a test result, and the like, which is not limited herein. Thereby achieving the purpose of further improving the flooding condition of the fuel cell stack.
And S107, judging whether the shutdown frequency of the fuel cell engine is less than a third threshold value.
The third threshold is a value summarized by technicians, experts, and the like through experiments, tests, and the like, and can be set and changed according to actual application conditions, subsequent experiment results, test results, and the like, which is not limited herein.
Specifically, if it is determined that the number of times of shutdown of the fuel cell engine is less than the third threshold, step S108 is executed; if it is determined that the number of times of shutdown of the fuel cell engine is not less than the third threshold, step S109 is executed.
And S108, restarting the fuel cell engine.
And S109, increasing the loading current of the fuel cell engine and the rotating speed of the air compressor, operating for a second preset time, and adding 1 to the cycle number.
And S110, judging whether the circulation frequency is greater than a fourth threshold value.
The fourth threshold is a value summarized by technicians, experts, and the like through experiments, tests, and the like, and can be set and changed according to actual application conditions, subsequent experiment results, test results, and the like, which is not limited herein.
Specifically, if it is determined that the number of cycles is not greater than the fourth threshold, the process returns to step S101; if the cycle number is greater than the fourth threshold, step S103 is executed.
According to the scheme, in the power recovery method of the fuel cell engine, whether the ratio of the actual voltage value to the set value under the current is within the preset range or not is judged in the operation process of the fuel cell engine, and the first preset time is continued; if the ratio of the actual voltage value to the set value under the current is judged to be within the preset range and lasts for the first preset time, judging whether the current load state of the power battery is smaller than a first threshold value or not; if the load state of the power battery is judged to be smaller than the first threshold value, the loading current of the fuel battery engine and the rotating speed of the air compressor are increased, the second preset time is operated, and the cycle number is recorded as 1; then, judging whether the load state of the power battery is smaller than a second threshold value and whether a preset shutdown condition is met; if the load state of the power battery is judged to be smaller than the second threshold value and the preset shutdown condition is met, controlling the fuel battery engine to shut down and starting a preset purging program; then, judging whether the shutdown frequency of the fuel cell engine is less than a third threshold value; if the shutdown frequency of the fuel cell engine is judged to be less than the third threshold, after the fuel cell engine is restarted, judging whether the ratio of the actual voltage value to the set value under the current is within a preset range or not and continuing for a first preset time in the running process of the fuel cell engine; if the shutdown frequency of the fuel cell engine is judged to be not less than the third threshold, the loading current of the fuel cell engine and the rotating speed of the air compressor are increased, the fuel cell engine runs for a second preset time, and the cycle frequency is increased by 1; judging whether the cycle number is greater than a fourth threshold value; and if the cycle number is not larger than the fourth threshold value, returning to the process of running the fuel cell engine, judging whether the ratio of the actual voltage value to the set value under the current is in the preset range or not, and continuing for a first preset time. The aim of efficiently solving the problem of power reduction of the fuel cell engine is achieved.
Another embodiment of the present application provides a power recovery apparatus of a fuel cell engine, as shown in fig. 2, including:
a first judging unit 201, a second judging unit 202, a first control unit 203, a third judging unit 204, a second control unit 205, a fourth judging unit 206, a restarting unit 207, a fifth judging unit 208, and a returning unit 209.
The first determining unit 201 is configured to determine whether a ratio of an actual voltage value to a set value at a current is within a preset range and lasts for a first preset time in a process of operating the fuel cell engine.
The second determining unit 202 is configured to determine whether the current load state of the power battery is smaller than a first threshold value if the first determining unit 201 determines that the ratio of the actual voltage value to the set value at the current is within the preset range and lasts for a first preset time.
And the first control unit 203 is configured to increase the loading current of the fuel cell engine and the rotation speed of the air compressor if the second determination unit 202 determines that the load state of the power battery is smaller than the first threshold, operate for a second preset time, and record the cycle number as 1.
The third determining unit 204 is configured to determine whether the load state of the power battery is smaller than a second threshold and meets a preset shutdown condition.
And the second control unit 205 is configured to control the fuel cell engine to shut down and start a preset purging program if the third determination unit 204 determines that the load state of the power cell is smaller than the second threshold and meets a preset shutdown condition.
A fourth determination unit 206 for determining whether the number of times of shutdown of the fuel cell engine is less than the third threshold.
And a restarting unit 207, configured to, after the fuel cell engine is restarted and executed in the process of operating the fuel cell engine, determine whether a ratio of the actual voltage value to the set value at the current is within a preset range and lasts for a first preset time if the fourth determining unit 206 determines that the number of times of shutdown of the fuel cell engine is smaller than the third threshold.
The first control unit 203 is further configured to increase the loading current of the fuel cell engine and the rotation speed of the air compressor, operate for a second preset time, and add 1 to the cycle number if the fourth determination unit 206 determines that the shutdown number of the fuel cell engine is not less than the third threshold.
A fifth judging unit 208, configured to judge whether the number of cycles is greater than a fourth threshold.
A returning unit 209, configured to, if the fifth determining unit 208 determines that the number of cycles is not greater than the fourth threshold, return to the process of operating the fuel cell engine, and determine whether a ratio of the actual voltage value to the set value at the current is within a preset range and lasts for a first preset time.
For a specific working process of the unit disclosed in the above embodiment of the present application, reference may be made to the content of the corresponding method embodiment, as shown in fig. 1, which is not described herein again.
Optionally, in another embodiment of the present application, an implementation of a power recovery apparatus of a fuel cell engine further includes:
and a first operation unit, configured to control the fuel cell engine to continue to normally operate according to the original setting program if the first determination unit 201 determines that the ratio of the actual voltage value to the set value at the current is not within the preset range, or the ratio of the actual voltage value to the set value at the current is within the preset range but does not last for the first preset time.
For a specific working process of the unit disclosed in the above embodiment of the present application, reference may be made to the content of the corresponding method embodiment, as shown in fig. 1, which is not described herein again.
Optionally, in another embodiment of the present application, an implementation of a power recovery apparatus of a fuel cell engine further includes:
and a second operation unit, configured to control the fuel cell engine to continue to normally operate according to the original set program if the second determination unit 202 determines that the current load state of the power cell is not less than the first threshold.
For a specific working process of the unit disclosed in the above embodiment of the present application, reference may be made to the content of the corresponding method embodiment, as shown in fig. 1, which is not described herein again.
Optionally, in another embodiment of the present application, an implementation of a power recovery apparatus of a fuel cell engine further includes:
and a third operation unit, configured to control the fuel cell engine to continue to normally operate according to the original set program if the third determination unit 204 determines that the load state of the power battery is not less than the second threshold and/or does not meet the preset shutdown condition.
For a specific working process of the unit disclosed in the above embodiment of the present application, reference may be made to the content of the corresponding method embodiment, as shown in fig. 1, which is not described herein again.
Optionally, in another embodiment of the present application, an implementation of a power recovery apparatus of a fuel cell engine further includes:
and a fourth operation unit, configured to control the fuel cell engine to continue to normally operate according to the original set program if the fifth determination unit 208 determines that the cycle number is greater than the fourth threshold.
For a specific working process of the unit disclosed in the above embodiment of the present application, reference may be made to the content of the corresponding method embodiment, as shown in fig. 1, which is not described herein again.
According to the above scheme, in the power recovery device of the fuel cell engine provided by the present application, in the operation process of the fuel cell engine, the first determining unit 201 determines whether the ratio of the actual voltage value to the set value under the current is within the preset range and lasts for the first preset time; if the first determining unit 201 determines that the ratio of the actual voltage value to the set value at the current is within the preset range and lasts for the first preset time, the second determining unit 202 determines whether the current load state of the power battery is smaller than a first threshold; if the second determination unit 202 determines that the load state of the power battery is smaller than the first threshold, the first control unit 203 increases the loading current of the fuel cell engine and the rotation speed of the air compressor, runs for a second preset time, and records the cycle number as 1; then, the third determining unit 204 determines whether the load state of the power battery is smaller than a second threshold and meets a preset shutdown condition; if the third determining unit 204 determines that the load state of the power battery is smaller than the second threshold and meets the preset shutdown condition, the second control unit 205 controls the fuel cell engine to shut down and starts a preset purging program; then, the fourth determination unit 206 determines whether the number of times of shutdown of the fuel cell engine is less than the third threshold; if the fourth determining unit 206 determines that the number of times of shutdown of the fuel cell engine is less than the third threshold, the restarting unit 207 determines whether the ratio of the actual voltage value to the set value at the current is within the preset range and lasts for the first preset time after restarting the fuel cell engine and during the operation of the fuel cell engine; if the fourth determining unit 206 determines that the shutdown frequency of the fuel cell engine is not less than the third threshold, the first control unit 203 increases the loading current of the fuel cell engine and the rotation speed of the air compressor, runs for a second preset time, and adds 1 to the cycle frequency; the fifth judgment unit 208 judges whether the number of cycles is greater than a fourth threshold; if the fifth determining unit 208 determines that the number of cycles is not greater than the fourth threshold, the returning unit 209 returns to determine whether the ratio of the actual voltage value to the set value at the current is within the preset range and lasts for the first preset time during the operation of the fuel cell engine. The aim of efficiently solving the problem of power reduction of the fuel cell engine is achieved.
Another embodiment of the present application provides an electronic device, as shown in fig. 3, including:
one or more processors 301.
A storage device 302 having one or more programs stored thereon.
The one or more programs, when executed by the one or more processors 301, cause the one or more processors 301 to implement a method of power recovery for a fuel cell engine as described in any of the above embodiments.
Another embodiment of the present application provides a storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, implements the power recovery method of a fuel cell engine as described in any one of the above embodiments.
In the above embodiments disclosed in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. The apparatus and method embodiments described above are illustrative only, as the flowcharts and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of apparatus, methods and computer program products according to various embodiments of the present disclosure. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
In addition, functional modules in the embodiments of the present disclosure may be integrated together to form an independent part, or each module may exist separately, or two or more modules may be integrated to form an independent part. The functions, if implemented in the form of software functional modules and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present disclosure may be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a live broadcast device, or a network device) to execute all or part of the steps of the method according to the embodiments of the present disclosure. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
Those skilled in the art can make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. A power recovery method for a fuel cell engine, comprising:
in the running process of a fuel cell engine, judging whether the ratio of the actual voltage value to the set value under the current is in a preset range or not, and continuing for a first preset time;
if the ratio of the actual voltage value to the set value under the current is judged to be within the preset range and lasts for the first preset time, judging whether the current load state of the power battery is smaller than a first threshold value or not;
if the load state of the power battery is judged to be smaller than the first threshold value, the loading current of the fuel battery engine and the rotating speed of the air compressor are increased, the fuel battery engine runs for a second preset time, and the cycle number is recorded as 1;
judging whether the load state of the power battery is smaller than a second threshold value and whether a preset shutdown condition is met;
if the load state of the power battery is judged to be smaller than a second threshold value and a preset shutdown condition is met, controlling the fuel battery engine to shut down and starting a preset purging program;
judging whether the shutdown frequency of the fuel cell engine is smaller than a third threshold value;
if the shutdown frequency of the fuel cell engine is judged to be less than the third threshold, after the fuel cell engine is restarted, judging whether the ratio of the actual voltage value to the set value under the current is within a preset range or not and lasting for a first preset time in the running process of the fuel cell engine;
if the shutdown frequency of the fuel cell engine is judged to be not less than a third threshold value, increasing the loading current of the fuel cell engine and the rotating speed of the air compressor, operating for a second preset time, and adding 1 to the cycle frequency;
judging whether the cycle number is greater than a fourth threshold value;
and if the cycle number is not larger than the fourth threshold value, returning to execute the operation process of the fuel cell engine, and judging whether the ratio of the actual voltage value to the set value under the current is within a preset range or not and continuing for a first preset time.
2. The method for power recovery of claim 1, further comprising:
and if the ratio of the actual voltage value to the set value under the current is judged not to be in the preset range, or the ratio of the actual voltage value to the set value under the current is in the preset range but does not last for the first preset time, controlling the fuel cell engine to continue to normally operate according to the original set program.
3. The method for power recovery of claim 1, further comprising:
and if the current load state of the power battery is judged to be not less than the first threshold value, controlling the fuel battery engine to continue to normally operate according to the original set program.
4. The method for power recovery of claim 1, further comprising:
and if the load state of the power battery is judged to be not less than the second threshold value and/or the preset shutdown condition is not met, controlling the fuel battery engine to continue to normally operate according to the original set program.
5. The method for power recovery of claim 1, further comprising:
and if the cycle number is judged to be larger than the fourth threshold value, controlling the fuel cell engine to continue to normally operate according to an original set program.
6. A power recovery device for a fuel cell engine, comprising:
the first judgment unit is used for judging whether the ratio of the actual voltage value to the set value under the current is in a preset range or not and lasting for a first preset time in the process of operating the fuel cell engine;
the second judging unit is used for judging whether the current load state of the power battery is smaller than a first threshold value or not if the first judging unit judges that the ratio of the actual voltage value to the set value under the current is within a preset range and lasts for a first preset time;
the first control unit is used for increasing the loading current of the fuel cell engine and the rotating speed of the air compressor if the second judgment unit judges that the load state of the power battery is smaller than the first threshold value, operating for a second preset time and recording the cycle number as 1;
the third judging unit is used for judging whether the load state of the power battery is smaller than a second threshold value and whether a preset shutdown condition is met;
the second control unit is used for controlling the fuel cell engine to shut down and starting a preset purging program if the load state of the power cell is smaller than a second threshold value and meets a preset shutdown condition, which is judged by the third judging unit;
a fourth judgment unit configured to judge whether or not the number of times of shutdown of the fuel cell engine is smaller than a third threshold;
the restarting unit is used for judging whether the ratio of the actual voltage value to the set value under the current is within a preset range or not and lasting for a first preset time in the process of running the fuel cell engine after restarting the fuel cell engine if the fourth judging unit judges that the shutdown frequency of the fuel cell engine is smaller than a third threshold;
the first control unit is further configured to increase a loading current of the fuel cell engine and a rotation speed of the air compressor, operate for a second preset time, and add 1 to the cycle number if the fourth determination unit determines that the shutdown number of the fuel cell engine is not less than a third threshold;
a fifth judging unit configured to judge whether the cycle number is greater than a fourth threshold;
and a returning unit, configured to, if the fifth determining unit determines that the cycle number is not greater than the fourth threshold, return to the execution of the fuel cell engine operation process, determine whether a ratio of the actual voltage value to the set value at the current is within a preset range, and continue for a first preset time.
7. The power recovery device of claim 6, further comprising:
and the first operation unit is used for controlling the fuel cell engine to continuously operate normally according to the original set program if the first judgment unit judges that the ratio of the actual voltage value to the set value under the current is not in the preset range or the ratio of the actual voltage value to the set value under the current is in the preset range but does not last for the first preset time.
8. The power recovery device of claim 6, further comprising:
and the second operation unit is used for controlling the fuel cell engine to continuously operate normally according to the original set program if the second judgment unit judges that the current load state of the power battery is not less than the first threshold value.
9. An electronic device, comprising:
one or more processors;
a storage device having one or more programs stored thereon;
the one or more programs, when executed by the one or more processors, cause the one or more processors to implement the power recovery method for a fuel cell engine of any of claims 1 to 5.
10. A storage medium having stored thereon a computer program, wherein the computer program when executed by a processor implements a power recovery method of a fuel cell engine according to any one of claims 1 to 5.
CN202110511424.4A 2021-05-11 2021-05-11 Power recovery method for fuel cell engine, related device and storage medium Active CN112928312B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110511424.4A CN112928312B (en) 2021-05-11 2021-05-11 Power recovery method for fuel cell engine, related device and storage medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110511424.4A CN112928312B (en) 2021-05-11 2021-05-11 Power recovery method for fuel cell engine, related device and storage medium

Publications (2)

Publication Number Publication Date
CN112928312A true CN112928312A (en) 2021-06-08
CN112928312B CN112928312B (en) 2021-08-20

Family

ID=76174784

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110511424.4A Active CN112928312B (en) 2021-05-11 2021-05-11 Power recovery method for fuel cell engine, related device and storage medium

Country Status (1)

Country Link
CN (1) CN112928312B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114583216A (en) * 2022-03-10 2022-06-03 山东国创燃料电池技术创新中心有限公司 Method and system for rapidly shutting down and purging fuel cell and storage medium

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040089486A1 (en) * 2002-11-13 2004-05-13 Clive Harrup Vehicle power storage by hydrolysis of water
US20070042243A1 (en) * 2005-08-17 2007-02-22 Relion, Inc. Apparatus and method for controlling a fuel cell
CN102820478A (en) * 2011-06-07 2012-12-12 通用汽车环球科技运作有限责任公司 Smart in-vehicle reactive recovery strategy
CN104752741A (en) * 2013-12-27 2015-07-01 Sk新技术株式会社 Device and method for controlling fuel cell stack connection
CN106663829A (en) * 2014-08-08 2017-05-10 日产自动车株式会社 Fuel cell system and control method for fuel cell system
CN107615543A (en) * 2015-05-21 2018-01-19 日产自动车株式会社 Power regulation system and its control method
CN110945695A (en) * 2017-07-28 2020-03-31 京瓷株式会社 Fuel cell system, device management method, management apparatus, and device management system
CN111082098A (en) * 2019-12-30 2020-04-28 上海神力科技有限公司 Fuel cell system shutdown method
CN111682245A (en) * 2020-05-12 2020-09-18 广东国鸿氢能科技有限公司 Method for recovering performance of fuel cell stack

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040089486A1 (en) * 2002-11-13 2004-05-13 Clive Harrup Vehicle power storage by hydrolysis of water
US20070042243A1 (en) * 2005-08-17 2007-02-22 Relion, Inc. Apparatus and method for controlling a fuel cell
CN102820478A (en) * 2011-06-07 2012-12-12 通用汽车环球科技运作有限责任公司 Smart in-vehicle reactive recovery strategy
CN104752741A (en) * 2013-12-27 2015-07-01 Sk新技术株式会社 Device and method for controlling fuel cell stack connection
CN106663829A (en) * 2014-08-08 2017-05-10 日产自动车株式会社 Fuel cell system and control method for fuel cell system
CN107615543A (en) * 2015-05-21 2018-01-19 日产自动车株式会社 Power regulation system and its control method
CN110945695A (en) * 2017-07-28 2020-03-31 京瓷株式会社 Fuel cell system, device management method, management apparatus, and device management system
CN111082098A (en) * 2019-12-30 2020-04-28 上海神力科技有限公司 Fuel cell system shutdown method
CN111682245A (en) * 2020-05-12 2020-09-18 广东国鸿氢能科技有限公司 Method for recovering performance of fuel cell stack

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114583216A (en) * 2022-03-10 2022-06-03 山东国创燃料电池技术创新中心有限公司 Method and system for rapidly shutting down and purging fuel cell and storage medium

Also Published As

Publication number Publication date
CN112928312B (en) 2021-08-20

Similar Documents

Publication Publication Date Title
JP7119705B2 (en) fuel cell system
JP4923551B2 (en) Fuel cell system
JP5617696B2 (en) Fuel cell system and fuel cell catalyst performance recovery method
JP6487632B2 (en) Fuel cell performance recovery method using polar substitution
CN111403780B (en) Shutdown processing method and device of fuel cell system
CN112928312B (en) Power recovery method for fuel cell engine, related device and storage medium
CN111952638B (en) Performance recovery system and method for vehicle fuel cell
CN110993990A (en) Control method for fuel cell stack activation
WO2002020300A1 (en) Fuel cell vehicle
CA2587550A1 (en) Method and controller for controlling fuel cell system
JP2003217622A (en) Fuel cell operating method, and solid polymer electrolyte fuel cell
JP2005276784A (en) Fuel cell system
JP4959106B2 (en) Starting method of fuel cell system
KR20190108238A (en) Stop control method for fuelcell system
CN103199281B (en) Adaptive limitation of standby mode to enhance fuel cell system life
CN115832364A (en) Hydrogen fuel cell engine starting control method
JP4964476B2 (en) Fuel cell system and fuel cell startup method
KR101673754B1 (en) Operation control method of fuel cell
CN115663240A (en) Fuel cell performance recovery method, device and system
CN110970972A (en) Control method and device of DCDC converter, storage medium and power supply
JP2006294458A (en) Fuel cell system
CN115172807A (en) Fuel cell anode drainage control method, device, controller and medium
US20230216075A1 (en) Method for distinguishing the cause of voltage losses in a fuel cell device, fuel cell device and motor vehicle having such a device
JP3934038B2 (en) Starting method of fuel cell system
JP6173282B2 (en) How to stop the fuel cell system

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant
CP03 Change of name, title or address
CP03 Change of name, title or address

Address after: 261061 Shandong city in Weifang province Fu hi tech Industrial Development Zone, East Street No. 197

Patentee after: WEICHAI POWER Co.,Ltd.

Country or region after: China

Patentee after: Weichai New Energy Power Technology Co.,Ltd.

Address before: 261061 Shandong city in Weifang province Fu hi tech Industrial Development Zone, East Street No. 197

Patentee before: WEICHAI POWER Co.,Ltd.

Country or region before: China

Patentee before: Weichai New Energy Technology Co.,Ltd.