CN117855531A - Fault protection method and device for integrated fuel cell cogeneration energy cabin - Google Patents
Fault protection method and device for integrated fuel cell cogeneration energy cabin Download PDFInfo
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- CN117855531A CN117855531A CN202311761266.3A CN202311761266A CN117855531A CN 117855531 A CN117855531 A CN 117855531A CN 202311761266 A CN202311761266 A CN 202311761266A CN 117855531 A CN117855531 A CN 117855531A
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- 239000000446 fuel Substances 0.000 title claims abstract description 52
- 238000000034 method Methods 0.000 title claims abstract description 46
- 230000008569 process Effects 0.000 claims abstract description 22
- 238000010926 purge Methods 0.000 claims description 50
- 238000003745 diagnosis Methods 0.000 claims description 42
- 238000001514 detection method Methods 0.000 claims description 36
- 238000004590 computer program Methods 0.000 claims description 17
- 230000005856 abnormality Effects 0.000 claims description 8
- 238000004891 communication Methods 0.000 claims description 7
- 238000003860 storage Methods 0.000 claims description 7
- 230000009467 reduction Effects 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 2
- 230000004044 response Effects 0.000 claims description 2
- 238000010248 power generation Methods 0.000 description 13
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 7
- 238000010586 diagram Methods 0.000 description 7
- 229910052739 hydrogen Inorganic materials 0.000 description 7
- 239000001257 hydrogen Substances 0.000 description 7
- 230000006870 function Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 2
- 230000010485 coping Effects 0.000 description 2
- 238000004146 energy storage Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005338 heat storage Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04298—Processes for controlling fuel cells or fuel cell systems
- H01M8/04313—Processes for controlling fuel cells or fuel cell systems characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function
- H01M8/04664—Failure or abnormal function
- H01M8/04679—Failure or abnormal function of fuel cell stacks
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04298—Processes for controlling fuel cells or fuel cell systems
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Abstract
The invention relates to a fault protection method of an integrated fuel cell cogeneration energy cabin, which comprises the following steps: determining the current running state of the energy cabin control system; when the energy cabin control system is in a standby state or a self-checking state, a first fault judging and processing mode is adopted for processing; when the energy cabin control system is in a starting state, a second fault judging and processing mode is adopted for processing; and when the energy cabin control system is in an operating state, adopting a third fault judging and processing mode to process. The invention can improve the reliability of energy supply of the energy cabin and ensure the safe and stable operation of the energy cabin.
Description
Technical Field
The invention relates to the technical field of comprehensive energy at a user side, in particular to a fault protection method and device for an integrated fuel cell cogeneration energy cabin.
Background
The hydrogen energy has the advantage of long-period space-time storage, and is an important technical means for ensuring that the energy system realizes energy and power balance at different time-space scales after the novel energy system is constructed. The fuel cell power generation technology is an important technical means for high-efficiency utilization of hydrogen energy, and the integrated fuel cell cogeneration energy cabin which is miniaturized and customized into a prefabricated cabin mode provides personalized comprehensive energy supply service for users, thereby improving comprehensive energy efficiency to the maximum extent and meeting the energy demand of the users.
The integrated fuel cell cogeneration energy cabin is modularized, integrates a fuel cell system, a heat storage system and an energy storage system, can realize the comprehensive energy cascade utilization of the energy cabin by utilizing the waste heat recovery of the fuel cell and the optimized regulation and control of the system, and provides an energy carrier and an efficient integration technology for the fuel cell. But existing integrated fuel cell cogeneration energy pods lack the ability to cope with uncertainty factors.
Disclosure of Invention
The invention aims to solve the technical problem of providing a fault protection method and device for an integrated fuel cell cogeneration energy cabin, which are used for improving the energy supply reliability of the energy cabin and ensuring the safe and stable operation of the energy cabin.
The technical scheme adopted for solving the technical problems is as follows: the fault protection method of the integrated fuel cell cogeneration energy cabin comprises the following steps:
determining the current running state of the energy cabin control system;
when the energy cabin control system is in a standby state or a self-checking state, a first fault judging and processing mode is adopted for processing;
when the energy cabin control system is in a starting state, a second fault judging and processing mode is adopted for processing;
when the energy cabin control system is in an operation state, a third fault judging and processing mode is adopted for processing;
the first fault judging processing mode, the second fault judging processing mode and the third fault judging processing mode divide fault types into four stages according to the severity of fault abnormality of equipment modules in the energy cabin, wherein the energy cabin needs emergency shutdown when in one-stage fault, the energy cabin needs load shedding shutdown or is not allowed to be started when in the second-stage fault, the energy cabin needs load shedding or warning prompt when in the third-stage fault, and the energy cabin executes warning prompt when in the fourth-stage fault.
The control flow for executing response according to the fault grade in the first fault judging processing mode, the second fault judging processing mode and the third fault judging processing mode comprises the following steps: if the energy cabin has no faults of more than two levels, continuing the current running state, and if the energy cabin has faults of less than three levels, executing a load reduction or alarm process; and if the energy cabin has more than two levels of faults, executing a fault shutdown process, and keeping a fault locking state before discharging the faults.
The first fault judging processing mode is used for processing, and specifically comprises the following steps:
when the energy cabin control system is in a standby state, judging whether a primary fault occurs, if so, entering a fault locking state, and if not, performing fault detection on each sensor; judging whether a secondary fault occurs according to the detection result of the sensor fault, if the secondary fault occurs, entering a fault locking state, if the secondary fault does not occur, judging whether a quaternary fault occurs according to the detection result of the sensor fault, and if the quaternary fault occurs, giving an alarm; if the four-stage fault does not occur, starting the system to enable the energy cabin control system to enter a self-checking state;
when the energy cabin control system is in a self-checking state, judging whether a first-level fault occurs, if the first-level fault occurs, entering a fault locking state, if the first-level fault does not occur, performing fault detection according to a state message returned by a sensor, detecting a communication fault at the same time, judging whether a second-level fault occurs according to a fault detection result, if the second-level fault occurs, entering the fault locking state, judging whether a fourth-level fault occurs according to a detection result, and if the fourth-level fault occurs, giving an alarm; if the four-stage fault does not occur, the starting state is entered.
The processing by adopting the second fault judging processing mode specifically comprises the following steps:
when the energy cabin control system is in a starting state, judging whether a first-level fault occurs, if so, entering a fault state, and if not, performing fault diagnosis; judging whether a secondary fault occurs according to the fault diagnosis result, and if the secondary fault occurs, entering a fault state; after entering a fault state, purging the energy cabin, and after purging is completed, entering a fault locking state; if no secondary fault occurs, judging whether a quaternary fault occurs according to a fault diagnosis result, if the quaternary fault occurs, giving an alarm, if the quaternary fault does not occur, judging whether a shutdown instruction is received, if the shutdown instruction is received, entering a shutdown state, purging an energy cabin, entering a standby state after purging is completed, and if the shutdown instruction is not received, entering an idle state.
The processing by adopting the third fault judging processing mode specifically comprises the following steps:
when the energy cabin control system is in an operation state, judging whether a first-level fault occurs, if so, entering a fault state, and if not, performing fault diagnosis; judging whether a secondary fault occurs according to the fault diagnosis result, and if the secondary fault occurs, entering a fault state; after entering a fault state, purging the energy cabin, and after purging is completed, entering a fault locking state; if no secondary fault occurs, judging whether a quaternary fault occurs according to a fault diagnosis result, if the quaternary fault occurs, alarming, if the quaternary fault does not occur, judging whether a tertiary fault occurs according to a fault diagnosis result, if the quaternary fault occurs, changing the power output into half of the target power, and recovering the target power after a preset time, if the tertiary fault does not occur, outputting according to the target power, judging whether a shutdown instruction is received, if the shutdown instruction is received, entering a shutdown state, purging an energy cabin, entering a standby state after purging is completed, and if the shutdown instruction is not received, maintaining the current running state.
And after the energy cabin enters the fault locking state, the energy cabin is restarted by power-down, and in the restarting process, the energy cabin is always kept in the fault locking state, and after the restarting is finished, the energy cabin is initialized.
The technical scheme adopted for solving the technical problems is as follows: there is provided a fault protection device for an integrated fuel cell cogeneration energy compartment, comprising:
the determining module is used for determining the current running state of the energy cabin control system;
the first processing module is used for processing by adopting a first fault judging and processing mode when the energy cabin control system is in a standby state or a self-checking state;
the second processing module is used for processing by adopting a second fault judging and processing mode when the energy cabin control system is in a starting state;
the third processing module is used for processing by adopting a third fault judging and processing mode when the energy cabin control system is in an operation state;
the first fault judging processing mode, the second fault judging processing mode and the third fault judging processing mode divide fault types into four stages according to the severity of fault abnormality of equipment modules in the energy cabin, wherein the energy cabin needs emergency shutdown when in one-stage fault, the energy cabin needs load shedding shutdown or is not allowed to be started when in the second-stage fault, the energy cabin needs load shedding or warning prompt when in the third-stage fault, and the energy cabin executes warning prompt when in the fourth-stage fault.
The first processing module performs processing in the following manner:
when the energy cabin control system is in a standby state, judging whether a primary fault occurs, if so, entering a fault locking state, and if not, performing fault detection on each sensor; judging whether a secondary fault occurs according to the detection result of the sensor fault, if the secondary fault occurs, entering a fault locking state, if the secondary fault does not occur, judging whether a quaternary fault occurs according to the detection result of the sensor fault, and if the quaternary fault occurs, giving an alarm; if the four-stage fault does not occur, starting the system to enable the energy cabin control system to enter a self-checking state;
when the energy cabin control system is in a self-checking state, judging whether a first-level fault occurs, if the first-level fault occurs, entering a fault locking state, if the first-level fault does not occur, performing fault detection according to a state message returned by a sensor, detecting a communication fault at the same time, judging whether a second-level fault occurs according to a fault detection result, if the second-level fault occurs, entering the fault locking state, judging whether a fourth-level fault occurs according to a detection result, and if the fourth-level fault occurs, giving an alarm; if the four-stage fault does not occur, the starting state is entered.
The second processing module performs processing in the following manner:
when the energy cabin control system is in a starting state, judging whether a first-level fault occurs, if so, entering a fault state, and if not, performing fault diagnosis; judging whether a secondary fault occurs according to the fault diagnosis result, and if the secondary fault occurs, entering a fault state; after entering a fault state, purging the energy cabin, and after purging is completed, entering a fault locking state; if no secondary fault occurs, judging whether a quaternary fault occurs according to a fault diagnosis result, if the quaternary fault occurs, giving an alarm, if the quaternary fault does not occur, judging whether a shutdown instruction is received, if the shutdown instruction is received, entering a shutdown state, purging an energy cabin, entering a standby state after purging is completed, and if the shutdown instruction is not received, entering an idle state.
The third processing module performs processing in the following manner:
when the energy cabin control system is in an operation state, judging whether a first-level fault occurs, if so, entering a fault state, and if not, performing fault diagnosis; judging whether a secondary fault occurs according to the fault diagnosis result, and if the secondary fault occurs, entering a fault state; after entering a fault state, purging the energy cabin, and after purging is completed, entering a fault locking state; if no secondary fault occurs, judging whether a quaternary fault occurs according to a fault diagnosis result, if the quaternary fault occurs, alarming, if the quaternary fault does not occur, judging whether a tertiary fault occurs according to a fault diagnosis result, if the quaternary fault occurs, changing the power output into half of the target power, and recovering the target power after a preset time, if the tertiary fault does not occur, outputting according to the target power, judging whether a shutdown instruction is received, if the shutdown instruction is received, entering a shutdown state, purging an energy cabin, entering a standby state after purging is completed, and if the shutdown instruction is not received, maintaining the current running state.
The technical scheme adopted for solving the technical problems is as follows: there is provided an electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the steps of the above-described method of fault protection of an integrated fuel cell cogeneration power pod when the computer program is executed.
The technical scheme adopted for solving the technical problems is as follows: there is provided a computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the above-described integrated fuel cell cogeneration energy pod fault protection method.
Advantageous effects
Due to the adoption of the technical scheme, compared with the prior art, the invention has the following advantages and positive effects: according to the invention, different running states of the energy cabin are considered, the fault types of the energy cabin are divided into four stages according to the severity of the fault abnormality of the equipment module in the energy cabin, three fault judging and processing flow modes are designed, the high-efficiency stable running of the integrated fuel cell cogeneration energy cabin system is ensured, the energy supply reliability of the energy cabin is improved, and the capability of the energy cabin for coping with uncertainty factors is improved.
Drawings
Fig. 1 is a schematic diagram of the structure of an integrated fuel cell cogeneration energy pod system in a first embodiment of the invention;
FIG. 2 is a flow chart of a method of fault protection for an integrated fuel cell cogeneration energy pod according to a first embodiment of the invention;
fig. 3 is a flowchart of a first failure determination processing mode in the first embodiment of the present invention;
fig. 4 is a flowchart of a second failure determination processing mode in the first embodiment of the present invention;
fig. 5 is a flowchart of a third failure determination processing mode in the first embodiment of the present invention.
Detailed Description
The invention will be further illustrated with reference to specific examples. It is to be understood that these examples are illustrative of the present invention and are not intended to limit the scope of the present invention. Further, it is understood that various changes and modifications may be made by those skilled in the art after reading the teachings of the present invention, and such equivalents are intended to fall within the scope of the claims appended hereto.
A first embodiment of the present invention relates to a fault protection method of an integrated fuel cell cogeneration power module, which is applicable to the integrated fuel cell cogeneration power module shown in fig. 1. The integrated fuel cell cogeneration energy cabin consists of a fuel cell power generation system, an energy storage system, a heat storage system and an energy cabin control system, wherein all modules are integrated in a prefabricated cabin.
The operation state of the integrated fuel cell cogeneration energy cabin (hereinafter referred to as energy cabin) comprises five states of power-on standby, self-checking, starting, running and stopping:
1) Power-on standby state: when the energy cabin is started, the control electricity utilization of the fuel cell power generation system is firstly conducted, and then the power utilization of the fuel cell power generation system is conducted. The energy cabin control system needs to confirm that the power supply is normal before sending the starting-up instruction, otherwise, the starting-up instruction is not sent.
2) Self-checking state: when a starting-up instruction of the energy cabin is received, the fuel cell power generation system executes a starting-up self-checking flow; the state of each component is mainly checked, and if serious faults such as incapacity of establishing communication of the component and incapacity of starting occur, the self-checking is not passed.
3) Starting up state: when the startup self-check of the fuel cell power generation system is normal, the fuel cell power generation system automatically enters a startup preparation stage, the component is started, the component operates normally, and if the fuel cell power generation system is started at a low temperature, the stack preheating is started, and the like. After the start preparation is completed, the supply of hydrogen is started, and the idle running process is started. Idle operation refers to operation of the stack at a minimum output power at which safe operation is possible.
4) Operating state: and after the starting-up process of the fuel cell power generation system is finished, feeding back the running state and the current running upper limit power to the energy cabin control system. The energy cabin control system sends a target power instruction to the fuel cell power generation system according to an energy management strategy, and the fuel cell power generation system carries out power increment and decrement according to the target instruction; in the process, the energy cabin control system and the fuel cell power generation system perform real-time interactive operation data.
5) And (3) stopping the machine: when a shutdown instruction of the energy cabin is received, the output power of the fuel cell power generation system is reduced to zero; after the output power is reduced to zero, firstly closing the hydrogen supply of the hydrogen source, and then executing a shutdown purging process to reduce the voltage of the electric pile to zero. The hydrogen loop, the air loop and the circulating water loop are all provided with purging pipelines, so that the concentration of residual hydrogen can be rapidly reduced during fault treatment or shutdown.
In the fault protection method of the integrated fuel cell cogeneration energy cabin of the embodiment, the fault is monitored and generated under the five normal operation states, and the corresponding control flow is executed according to the fault level. In this embodiment, the fault types of the energy cabin are classified into four levels according to the severity of the fault abnormality of the equipment module in the energy cabin, the energy cabin needs to be stopped in an emergency when the first level is failed, the energy cabin needs to be stopped in a load-shedding mode (the energy cabin is in an operating state) or is not allowed to be started (the energy cabin is in a starting state) when the second level is failed, the energy cabin needs to be unloaded or carries out warning prompt when the third level is failed, and the energy cabin executes warning prompt when the fourth level is failed. The control logic in this embodiment is: if the energy cabin has no fault with more than two levels, the current running state is continued, if the fault with less than three levels occurs, the load reduction or alarm process is executed, and a fault code is output. When more than two stages of faults occur, a fault shutdown process is executed, fault codes are output, and a fault locking state is maintained before the faults are manually discharged. As shown in fig. 2, the method specifically comprises the following steps:
step 1, determining the current running state of an energy cabin control system;
and 2, when the energy cabin control system is in a standby state or a self-checking state, adopting a first fault judging and processing mode to process. As shown in fig. 3, the first failure determination processing mode is as follows:
when the energy cabin control system is in a standby state, judging whether a primary fault occurs, if so, entering a fault locking state, and if not, performing fault detection on each sensor; judging whether a secondary fault occurs according to the detection result of the sensor fault, if the secondary fault occurs, entering a fault locking state, if the secondary fault does not occur, judging whether a quaternary fault occurs according to the detection result of the sensor fault, and if the quaternary fault occurs, giving an alarm; if the four-stage fault does not occur, starting the system to enable the energy cabin control system to enter a self-checking state;
when the energy cabin control system is in a self-checking state, judging whether a first-level fault occurs, if the first-level fault occurs, entering a fault locking state, if the first-level fault does not occur, performing fault detection according to a state message returned by a sensor, detecting a communication fault at the same time, judging whether a second-level fault occurs according to a fault detection result, if the second-level fault occurs, entering the fault locking state, judging whether a fourth-level fault occurs according to a detection result, and if the fourth-level fault occurs, giving an alarm; if the four-stage fault does not occur, the starting state is entered.
After entering a fault locking state, the energy cabin is restarted by power-down, and in the restarting process, the energy cabin is always kept in the fault locking state, and after the restarting is completed, the energy cabin is initialized.
And step 3, when the energy cabin control system is in a starting state, adopting a second fault judging and processing mode to process. As shown in fig. 4, the second failure determination processing mode is as follows:
when the energy cabin control system is in a starting state, judging whether a first-level fault occurs, if so, entering a fault state, and if not, performing fault diagnosis; judging whether a secondary fault occurs according to the fault diagnosis result, and if the secondary fault occurs, entering a fault state; after entering a fault state, purging the energy cabin, and after purging is completed, entering a fault locking state; if no secondary fault occurs, judging whether a quaternary fault occurs according to a fault diagnosis result, if the quaternary fault occurs, giving an alarm, if the quaternary fault does not occur, judging whether a shutdown instruction is received, if the shutdown instruction is received, entering a shutdown state, purging an energy cabin, entering a standby state after purging is completed, if the shutdown instruction is not received, entering an idle state, returning to the startup state when the idle state is incomplete, performing the same fault judgment in the startup state, and always performing a loading flow, and entering an operation state after loading to an idle current.
After entering a fault locking state, the energy cabin is restarted by power-down, and in the restarting process, the energy cabin is always kept in the fault locking state, and after the restarting is completed, the energy cabin is initialized.
And 4, when the energy cabin control system is in an operation state, adopting a third fault judging and processing mode to process. As shown in fig. 5, the third failure determination processing mode is as follows:
when the energy cabin control system is in an operation state, judging whether a first-level fault occurs, if so, entering a fault state, and if not, performing fault diagnosis; judging whether a secondary fault occurs according to the fault diagnosis result, and if the secondary fault occurs, entering a fault state; after entering a fault state, purging the energy cabin, and after purging is completed, entering a fault locking state; if no secondary fault occurs, judging whether a quaternary fault occurs according to a fault diagnosis result, if the quaternary fault occurs, alarming, if the quaternary fault does not occur, judging whether a tertiary fault occurs according to a fault diagnosis result, if the quaternary fault occurs, changing the power output into half of the target power, and recovering the target power after a preset time, if the tertiary fault does not occur, outputting according to the target power, judging whether a shutdown instruction is received, if the shutdown instruction is received, entering a shutdown state, purging an energy cabin, entering a standby state after purging is completed, and if the shutdown instruction is not received, maintaining the current running state.
After entering a fault locking state, the energy cabin is restarted by power-down, and in the restarting process, the energy cabin is always kept in the fault locking state, and after the restarting is completed, the energy cabin is initialized.
According to the invention, different running states of the energy cabin are considered, the fault types of the energy cabin are divided into four stages according to the severity of the fault abnormality of the equipment module in the energy cabin, three fault judging and processing flow modes are designed, the high-efficiency stable running of the integrated fuel cell cogeneration energy cabin system is ensured, the energy supply reliability of the energy cabin is improved, and the capability of the energy cabin for coping with uncertainty factors is improved.
A second embodiment of the present invention relates to a fault protection device for an integrated fuel cell cogeneration energy compartment, comprising:
the determining module is used for determining the current running state of the energy cabin control system;
the first processing module is used for processing by adopting a first fault judging and processing mode when the energy cabin control system is in a standby state or a self-checking state;
the second processing module is used for processing by adopting a second fault judging and processing mode when the energy cabin control system is in a starting state;
the third processing module is used for processing by adopting a third fault judging and processing mode when the energy cabin control system is in an operation state;
the first fault judging processing mode, the second fault judging processing mode and the third fault judging processing mode divide fault types into four stages according to the severity of fault abnormality of equipment modules in the energy cabin, wherein the energy cabin needs emergency shutdown when in one-stage fault, the energy cabin needs load shedding shutdown or is not allowed to be started when in the second-stage fault, the energy cabin needs load shedding or warning prompt when in the third-stage fault, and the energy cabin executes warning prompt when in the fourth-stage fault.
The first processing module performs processing in the following manner:
when the energy cabin control system is in a standby state, judging whether a primary fault occurs, if so, entering a fault locking state, and if not, performing fault detection on each sensor; judging whether a secondary fault occurs according to the detection result of the sensor fault, if the secondary fault occurs, entering a fault locking state, if the secondary fault does not occur, judging whether a quaternary fault occurs according to the detection result of the sensor fault, and if the quaternary fault occurs, giving an alarm; if the four-stage fault does not occur, starting the system to enable the energy cabin control system to enter a self-checking state;
when the energy cabin control system is in a self-checking state, judging whether a first-level fault occurs, if the first-level fault occurs, entering a fault locking state, if the first-level fault does not occur, performing fault detection according to a state message returned by a sensor, detecting a communication fault at the same time, judging whether a second-level fault occurs according to a fault detection result, if the second-level fault occurs, entering the fault locking state, judging whether a fourth-level fault occurs according to a detection result, and if the fourth-level fault occurs, giving an alarm; if the four-stage fault does not occur, the starting state is entered.
The second processing module performs processing in the following manner:
when the energy cabin control system is in a starting state, judging whether a first-level fault occurs, if so, entering a fault state, and if not, performing fault diagnosis; judging whether a secondary fault occurs according to the fault diagnosis result, and if the secondary fault occurs, entering a fault state; after entering a fault state, purging the energy cabin, and after purging is completed, entering a fault locking state; if no secondary fault occurs, judging whether a quaternary fault occurs according to a fault diagnosis result, if the quaternary fault occurs, giving an alarm, if the quaternary fault does not occur, judging whether a shutdown instruction is received, if the shutdown instruction is received, entering a shutdown state, purging an energy cabin, entering a standby state after purging is completed, and if the shutdown instruction is not received, entering an idle state.
The third processing module performs processing in the following manner:
when the energy cabin control system is in an operation state, judging whether a first-level fault occurs, if so, entering a fault state, and if not, performing fault diagnosis; judging whether a secondary fault occurs according to the fault diagnosis result, and if the secondary fault occurs, entering a fault state; after entering a fault state, purging the energy cabin, and after purging is completed, entering a fault locking state; if no secondary fault occurs, judging whether a quaternary fault occurs according to a fault diagnosis result, if the quaternary fault occurs, alarming, if the quaternary fault does not occur, judging whether a tertiary fault occurs according to a fault diagnosis result, if the quaternary fault occurs, changing the power output into half of the target power, and recovering the target power after a preset time, if the tertiary fault does not occur, outputting according to the target power, judging whether a shutdown instruction is received, if the shutdown instruction is received, entering a shutdown state, purging an energy cabin, entering a standby state after purging is completed, and if the shutdown instruction is not received, maintaining the current running state.
A third embodiment of the invention relates to an electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the steps of the method for fault protection of the integrated fuel cell cogeneration energy pod of the first embodiment when the computer program is executed.
A fourth embodiment of the invention relates to a computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, implements the steps of the method for failsafe of an integrated fuel cell cogeneration energy compartment of the second embodiment.
It will be appreciated by those skilled in the art that embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, magnetic disk storage, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (12)
1. The fault protection method of the integrated fuel cell cogeneration energy cabin is characterized by comprising the following steps of:
determining the current running state of the energy cabin control system;
when the energy cabin control system is in a standby state or a self-checking state, a first fault judging and processing mode is adopted for processing;
when the energy cabin control system is in a starting state, a second fault judging and processing mode is adopted for processing;
when the energy cabin control system is in an operation state, a third fault judging and processing mode is adopted for processing;
the first fault judging processing mode, the second fault judging processing mode and the third fault judging processing mode divide fault types into four stages according to the severity of fault abnormality of equipment modules in the energy cabin, wherein the energy cabin needs emergency shutdown when in one-stage fault, the energy cabin needs load shedding shutdown or is not allowed to be started when in the second-stage fault, the energy cabin needs load shedding or warning prompt when in the third-stage fault, and the energy cabin executes warning prompt when in the fourth-stage fault.
2. The fault protection method for an integrated fuel cell cogeneration energy compartment according to claim 1, wherein the control flow for executing a response according to a fault level in the first, second, and third fault determination processing modes is: if the energy cabin has no faults of more than two levels, continuing the current running state, and if the energy cabin has faults of less than three levels, executing a load reduction or alarm process; and if the energy cabin has more than two levels of faults, executing a fault shutdown process, and keeping a fault locking state before discharging the faults.
3. The method for protecting a cogeneration energy compartment of an integrated fuel cell according to claim 2, wherein said first failure determination processing mode performs processing, specifically comprising:
when the energy cabin control system is in a standby state, judging whether a primary fault occurs, if so, entering a fault locking state, and if not, performing fault detection on each sensor; judging whether a secondary fault occurs according to the detection result of the sensor fault, if the secondary fault occurs, entering a fault locking state, if the secondary fault does not occur, judging whether a quaternary fault occurs according to the detection result of the sensor fault, and if the quaternary fault occurs, giving an alarm; if the four-stage fault does not occur, starting the system to enable the energy cabin control system to enter a self-checking state; when the energy cabin control system is in a self-checking state, judging whether a first-level fault occurs, if the first-level fault occurs, entering a fault locking state, if the first-level fault does not occur, performing fault detection according to a state message returned by a sensor, detecting a communication fault at the same time, judging whether a second-level fault occurs according to a fault detection result, if the second-level fault occurs, entering the fault locking state, judging whether a fourth-level fault occurs according to a detection result, and if the fourth-level fault occurs, giving an alarm; if the four-stage fault does not occur, the starting state is entered.
4. The method for protecting a co-generation energy compartment of an integrated fuel cell according to claim 2, wherein the processing in the second failure judgment processing mode specifically comprises:
when the energy cabin control system is in a starting state, judging whether a first-level fault occurs, if so, entering a fault state, and if not, performing fault diagnosis; judging whether a secondary fault occurs according to the fault diagnosis result, and if the secondary fault occurs, entering a fault state; after entering a fault state, purging the energy cabin, and after purging is completed, entering a fault locking state; if no secondary fault occurs, judging whether a quaternary fault occurs according to a fault diagnosis result, if the quaternary fault occurs, giving an alarm, if the quaternary fault does not occur, judging whether a shutdown instruction is received, if the shutdown instruction is received, entering a shutdown state, purging an energy cabin, entering a standby state after purging is completed, and if the shutdown instruction is not received, entering an idle state.
5. The method for protecting a cogeneration energy compartment of an integrated fuel cell according to claim 2, wherein said processing in the third failure determination processing mode specifically comprises:
when the energy cabin control system is in an operation state, judging whether a first-level fault occurs, if so, entering a fault state, and if not, performing fault diagnosis; judging whether a secondary fault occurs according to the fault diagnosis result, and if the secondary fault occurs, entering a fault state; after entering a fault state, purging the energy cabin, and after purging is completed, entering a fault locking state; if no secondary fault occurs, judging whether a quaternary fault occurs according to a fault diagnosis result, if the quaternary fault occurs, alarming, if the quaternary fault does not occur, judging whether a tertiary fault occurs according to a fault diagnosis result, if the quaternary fault occurs, changing the power output into half of the target power, and recovering the target power after a preset time, if the tertiary fault does not occur, outputting according to the target power, judging whether a shutdown instruction is received, if the shutdown instruction is received, entering a shutdown state, purging an energy cabin, entering a standby state after purging is completed, and if the shutdown instruction is not received, maintaining the current running state.
6. The method for protecting a co-generation energy compartment of an integrated fuel cell according to claim 3, 4 or 5, wherein after the energy compartment is in a failure locked state, the energy compartment is restarted by power-down, and during the restarting, the energy compartment is always kept in the failure locked state, and after the restarting is completed, the energy compartment is initialized.
7. A fault protection device for an integrated fuel cell cogeneration energy compartment, comprising:
the determining module is used for determining the current running state of the energy cabin control system;
the first processing module is used for processing by adopting a first fault judging and processing mode when the energy cabin control system is in a standby state or a self-checking state;
the second processing module is used for processing by adopting a second fault judging and processing mode when the energy cabin control system is in a starting state;
the third processing module is used for processing by adopting a third fault judging and processing mode when the energy cabin control system is in an operation state;
the first fault judging processing mode, the second fault judging processing mode and the third fault judging processing mode divide fault types into four stages according to the severity of fault abnormality of equipment modules in the energy cabin, wherein the energy cabin needs emergency shutdown when in one-stage fault, the energy cabin needs load shedding shutdown or is not allowed to be started when in the second-stage fault, the energy cabin needs load shedding or warning prompt when in the third-stage fault, and the energy cabin executes warning prompt when in the fourth-stage fault.
8. The integrated fuel cell cogeneration power pod fault protection device of claim 7, wherein the first processing module processes by:
when the energy cabin control system is in a standby state, judging whether a primary fault occurs, if so, entering a fault locking state, and if not, performing fault detection on each sensor; judging whether a secondary fault occurs according to the detection result of the sensor fault, if the secondary fault occurs, entering a fault locking state, if the secondary fault does not occur, judging whether a quaternary fault occurs according to the detection result of the sensor fault, and if the quaternary fault occurs, giving an alarm; if the four-stage fault does not occur, starting the system to enable the energy cabin control system to enter a self-checking state; when the energy cabin control system is in a self-checking state, judging whether a first-level fault occurs, if the first-level fault occurs, entering a fault locking state, if the first-level fault does not occur, performing fault detection according to a state message returned by a sensor, detecting a communication fault at the same time, judging whether a second-level fault occurs according to a fault detection result, if the second-level fault occurs, entering the fault locking state, judging whether a fourth-level fault occurs according to a detection result, and if the fourth-level fault occurs, giving an alarm; if the four-stage fault does not occur, the starting state is entered.
9. The integrated fuel cell cogeneration power pod fault protection device of claim 7 wherein the second processing module processes by:
when the energy cabin control system is in a starting state, judging whether a first-level fault occurs, if so, entering a fault state, and if not, performing fault diagnosis; judging whether a secondary fault occurs according to the fault diagnosis result, and if the secondary fault occurs, entering a fault state; after entering a fault state, purging the energy cabin, and after purging is completed, entering a fault locking state; if no secondary fault occurs, judging whether a quaternary fault occurs according to a fault diagnosis result, if the quaternary fault occurs, giving an alarm, if the quaternary fault does not occur, judging whether a shutdown instruction is received, if the shutdown instruction is received, entering a shutdown state, purging an energy cabin, entering a standby state after purging is completed, and if the shutdown instruction is not received, entering an idle state.
10. The integrated fuel cell cogeneration power pod fault protection device of claim 7, wherein the third processing module processes by:
when the energy cabin control system is in an operation state, judging whether a first-level fault occurs, if so, entering a fault state, and if not, performing fault diagnosis; judging whether a secondary fault occurs according to the fault diagnosis result, and if the secondary fault occurs, entering a fault state; after entering a fault state, purging the energy cabin, and after purging is completed, entering a fault locking state; if no secondary fault occurs, judging whether a quaternary fault occurs according to a fault diagnosis result, if the quaternary fault occurs, alarming, if the quaternary fault does not occur, judging whether a tertiary fault occurs according to a fault diagnosis result, if the quaternary fault occurs, changing the power output into half of the target power, and recovering the target power after a preset time, if the tertiary fault does not occur, outputting according to the target power, judging whether a shutdown instruction is received, if the shutdown instruction is received, entering a shutdown state, purging an energy cabin, entering a standby state after purging is completed, and if the shutdown instruction is not received, maintaining the current running state.
11. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor, when executing the computer program, carries out the steps of the method for fault protection of an integrated fuel cell cogeneration power pod according to any of claims 1-6.
12. A computer readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, carries out the steps of the method for fault protection of an integrated fuel cell cogeneration power pod according to any of claims 1-6.
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