CN114932815B - Power generation power distribution method for hydrogen fuel cell electric protection car - Google Patents
Power generation power distribution method for hydrogen fuel cell electric protection car Download PDFInfo
- Publication number
- CN114932815B CN114932815B CN202210554117.9A CN202210554117A CN114932815B CN 114932815 B CN114932815 B CN 114932815B CN 202210554117 A CN202210554117 A CN 202210554117A CN 114932815 B CN114932815 B CN 114932815B
- Authority
- CN
- China
- Prior art keywords
- power
- fuel cell
- hydrogen fuel
- lithium battery
- hydrogen
- 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.)
- Active
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
- B60L50/75—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using propulsion power supplied by both fuel cells and batteries
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/40—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for controlling a combination of batteries and fuel cells
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/4228—Leak testing of cells or batteries
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
-
- 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
- H01M8/0438—Pressure; Ambient pressure; Flow
-
- 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
-
- 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
- H01M8/04746—Pressure; Flow
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
- H02J7/0048—Detection of remaining charge capacity or state of charge [SOC]
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2250/00—Fuel cells for particular applications; Specific features of fuel cell system
- H01M2250/20—Fuel cells in motive systems, e.g. vehicle, ship, plane
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Abstract
The invention discloses a power distribution method for a hydrogen fuel cell electric protection car, which comprises a relay, a timer, a hydrogen fuel cell, a lithium battery and an energy management device which are arranged on the electric protection car, wherein the relay and the timer are initialized at first, whether the process has fault alarm information of hydrogen leakage or hydrogen deficiency is judged, if yes, the power is turned off, and if not, the self-inspection is carried out on all parts in the hydrogen fuel electric protection car; the method comprises the steps of preparing a lithium battery for reverse charging, feeding back charging permission information and maximum chargeable current by the lithium battery, and charging the lithium battery by an inverter according to the lithium battery feedback information, wherein at the stage, if no commercial power exists or commercial power exists and the SOC of the lithium battery is more than 90 percent, power distribution is carried out; the invention realizes safe and stable energy supply, reasonably coordinates the double hydrogen fuel cell system and the lithium battery system, improves the service life of the battery, divides different load working conditions into sections, fits the high-efficiency section of the load demand power and the power generation power of the fuel cell system, and improves the power generation efficiency of the whole vehicle.
Description
Technical Field
The invention relates to the technical field of battery energy management, in particular to a power generation power distribution method of a hydrogen fuel cell electricity-protecting vehicle.
Background
In the production and life of humans, electricity is an important requirement almost equally well as water. In particular, in places related to electric power such as hospitals, research institutions, high-rise buildings, factories, companies and the like, the power outage can cause huge economic loss and even serious injury to life of people. Therefore, the electric power-saving vehicle for ensuring uninterrupted energy supply needs to be generated, and plays an important role in a great number of occasions.
Diesel power generation, gasoline power generation, coal thermal power generation, etc., are power generation by burning non-renewable resources. The energy conversion efficiency of the mode is quite low, the environmental pollution is aggravated, and the greenhouse effect is enhanced. The other type of wind power generation, hydroelectric power generation, solar power generation and the like generate power by green and environment-friendly energy, but the power generation mode is limited by a plurality of environmental factors such as temperature, weather, geography and the like, and can only be used in specific areas and even in specific time. The hydrogen is used as renewable energy, has high energy efficiency and high energy density, can be flexibly used, can only generate heat and water in the power generation operation process, and is a very ideal power generation energy.
The electricity-protecting vehicle is used as emergency power supply equipment, has complex use scene, random use time and relatively sufficient power generation capacity, so that the electricity-protecting vehicle is environment-friendly and efficient, and can flexibly use high-energy and high-efficiency hydrogen energy as power generation energy.
The response speed of hydrogen energy power generation is slower, in order to guarantee uninterrupted power supply and energy supply sufficiency, two hydrogen fuel cells of upper-loading and chassis in this patent cooperate with the lithium cell. The lithium battery can quickly respond to make up the defect of hydrogen energy power generation, can absorb redundant electric energy of the energy fuel battery, plays a very good role in peak clipping and valley filling, and realizes stable and sufficient power supply. At present, hybrid energy power generation in the electric power conservation and other fields mostly considers the maximum energy efficiency, and the service lives of a fuel cell and a lithium battery are considered to be less. Only a disclosed real-time energy management control method capable of improving the service life of the fuel cell is found, and patent application number CN202111270878.3 proposes a real-time energy management control method capable of improving the service life of the fuel cell, and the service life of the fuel cell is considered. However, this method is to consider various driving modes for a running automobile, and mainly considers efficient matching of the hydrogen fuel cell and the super capacitor, and less consideration is given to impact of current on the fuel cell and power generation capacity of the fuel cell and power generation efficiency of the dihydro fuel cell under abrupt energy demand. Therefore, a method for distributing the power generated by the hydrogen fuel cell power protection vehicle is needed.
Disclosure of Invention
The invention aims to provide a power generation power distribution method for a hydrogen fuel cell electric protection car;
the invention is realized in the following way:
the method for distributing the generated power of the hydrogen fuel cell electric protection car comprises a relay, a timer, a hydrogen fuel cell, a lithium battery and an energy management device which are arranged on the electric protection car, and is characterized by comprising the following steps of:
S 1 firstly initializing a relay and a timer, judging whether the process has fault alarm information of hydrogen leakage or hydrogen deficiency, if so, turning off, otherwise, performing step S 2 ；
S 2 The self-checking of each component in the hydrogen fuel lithium battery is carried out, the self-checking signal is normal, and the step S is entered 3 The self-checking signal is abnormal or the hydrogen leakage occurs, and the machine is shut down;
S 3 starting all parts such as a hydrogen fuel lithium battery, judging whether the starting is successful according to a feedback signal, entering a step S4 after the starting is successful, and shutting down if hydrogen leakage exists at the stage and the starting is unsuccessful due to fault alarm information;
S 4 detecting the SOC of the commercial power and the lithium battery, and entering the step S if the commercial power exists and the SOC is less than 90 percent 5 The method comprises the steps of carrying out a first treatment on the surface of the If no commercial power exists or commercial power exists and the SOC is more than 90 percent of the power enters S 6 The method comprises the steps of carrying out a first treatment on the surface of the If the fault alarm information of hydrogen leakage exists at the stage, the machine is shut down;
S 5 the method comprises the steps of preparing reverse charging of a lithium battery, feeding back charging permission information and maximum chargeable current by the lithium battery, and enabling an inverter to the lithium battery according to the feedback information of the lithium batteryCharging, if no commercial power exists or commercial power exists at the stage and the SOC is more than 90%, entering step S6; if the hydrogen leakage and other fault alarm information exist at the stage, the machine is shut down;
S 6 carrying out power distribution;
S 7 and (5) shutting down.
Further, in step S 6 According to the power required at the previous moment, carrying out power distribution on the hydrogen fuel cell and the lithium battery;
S 6.1 starting the fuel cell according to a load power distribution strategy;
S 6.2 according to the difference of high-efficiency intervals of hydrogen fuel cells on the upper package of a trolley bus and the chassis, the output power of each system is divided into the following intervals:
when the P2 is less than or equal to the direct current load power and less than or equal to the P1, the power request of the control system is distributed according to the output power of the hydrogen fuel cell of the upper loading and the output power of the hydrogen fuel cell of the chassis of 1.44:1;
when the P3 is less than or equal to the direct current load power and less than P2, the power request of the control system is distributed according to the output power of the hydrogen fuel cell of the upper loading and the output power of the hydrogen fuel cell of the chassis as 1:1;
when the P4 is less than or equal to the direct current load power and less than P3, the power request of the control system is distributed according to the output power of the hydrogen fuel cell of the upper loading and the output power of the hydrogen fuel cell of the chassis as 1:0;
when the P5 is less than or equal to the direct current load power and less than or equal to the P4, the power request of the control system is distributed according to the output power of the hydrogen fuel cell of the upper loading and the output power of the hydrogen fuel cell of the chassis of the upper loading is 0:1;
when the direct current load power is smaller than P5, the power request of the control system is distributed according to the output power of the hydrogen fuel cell of the upper loading and the output power of the hydrogen fuel cell of the chassis as 1:0 in order to ensure the endurance of the power system of the chassis;
S 6.3 the power distribution is further divided according to the SOC curve change of the lithium battery, when the electric quantity of the lithium battery is between SOC1 and SOC2, the fuel battery and the lithium battery are divided according to a table lookup, and when the electric quantity of the lithium battery is smaller than SOC1, the power distribution is carried out according to the step S6.4; when the electric quantity of the lithium battery is larger than SOC2, the hydrogen fuel battery is at idle speed, and the generated energy is 0;
S 6.4 step S 6.1 The SOC of the medium power switching point is kept in a hysteresis interval of 5% upwards;
the fuel cell system can output the maximum power if the maximum power is smaller than the step S 6 And (5) outputting the power according to the minimum value. If hydrogen leakage or other abnormal faults exist at the stage, the power is turned off, if commercial power exists, the battery power is smaller than SOC3, and the step S is entered 5 。
Further, in step S 6 In the method, a plurality of fuel cell systems perform dynamic response processing according to abrupt change of load end power; the method comprises the following specific steps:
i: detecting the power of a load end in real time, and if the load power is smaller than power 1, setting the execution power generation amount of the hydrogen fuel cell as a power command of power 1;
II: if the load power is greater than power 1, the execution power generation amount of the hydrogen fuel cell is a power 2 power command;
III: if the load power is reduced to be lower than the power 1 in the process, the execution generating capacity of the hydrogen fuel cell is a power 1 power command;
IV: if the load is converted to be more than the power 1 power and kept for 5 minutes, the execution generating capacity of the hydrogen fuel cell is the power 2 power;
v: and (3) circularly judging the condition of the load power, and if the load power is reduced to be lower than the power 1, executing the step (III).
Further, the energy management device of the present invention improves a computer-readable storage medium having stored thereon a computer program which, when executed by a main controller, implements the method as described in any of the above.
Compared with the prior art, the invention has the beneficial effects that:
1. and the power distribution is carried out on the hydrogen fuel cell, the lithium battery and the like of the upper chassis during power generation, so that safe and stable energy supply is realized, the service life of the battery is prolonged, meanwhile, different load working conditions are divided into sections, the load power requirement is fitted with the high-efficiency section of the power generation power of the fuel cell system, and the power generation efficiency of the whole vehicle is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a flow chart of the method of the present invention;
fig. 2 is a flow chart of the allocation strategy of the present invention.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, based on the embodiments of the invention, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the invention. Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, based on the embodiments of the invention, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the invention.
Referring to fig. 1-2, a method for distributing power generated by a hydrogen fuel cell power protection vehicle specifically comprises the following steps:
in this embodiment, the method includes a relay, a timer, a hydrogen fuel cell, a lithium battery and an energy management device mounted on a power-saving vehicle, and is characterized by comprising the following steps:
S 1 firstly, initializing a relay and a timer, judging whether the process has fault alarm information of hydrogen leakage or hydrogen deficiency, if so, turning off, otherwise, performing the stepsS 2 ；
S 2 The self-checking of each component in the hydrogen fuel lithium battery is carried out, the self-checking signal is normal, and the step S is entered 3 The self-checking signal is abnormal or the hydrogen leakage occurs, and the machine is shut down;
S 3 starting all parts such as a hydrogen fuel lithium battery, judging whether the starting is successful according to a feedback signal, and entering step S after the starting is successful 4 If hydrogen leaks, the alarm information is turned off if the failure alarm information is unsuccessful in starting;
S 4 detecting the SOC of the commercial power and the lithium battery, and entering the step S if the commercial power exists and the SOC is less than 90 percent 5 The method comprises the steps of carrying out a first treatment on the surface of the If no commercial power exists or commercial power exists and the SOC is more than 90 percent, S is entered 6 The method comprises the steps of carrying out a first treatment on the surface of the If the fault alarm information of hydrogen leakage exists at the stage, the machine is shut down;
S 5 the method comprises the steps of preparing a lithium battery for reverse charging, feeding back charging permission information and maximum chargeable current by the lithium battery, and charging the lithium battery by an inverter according to the lithium battery feedback information, wherein in the stage, if no commercial power exists or the commercial power exists and the SOC is more than 90%, the step S6 is carried out; if the hydrogen leakage and other fault alarm information exist at the stage, the machine is shut down;
S 6 carrying out power distribution;
S 7 and (5) shutting down.
In the present embodiment, in step S 6 According to the power required at the previous moment, carrying out power distribution on the hydrogen fuel cell and the lithium battery;
S 6.1 starting the fuel cell according to a load power distribution strategy;
S 6.2 according to the difference of high-efficiency intervals of hydrogen fuel cells on the upper package of a trolley bus and the chassis, the output power of each system is divided into the following intervals:
when the P2 is less than or equal to the direct current load power and less than or equal to the P1, the power request of the control system is distributed according to the output power of the hydrogen fuel cell of the upper loading and the output power of the hydrogen fuel cell of the chassis of 1.44:1;
when the P3 is less than or equal to the direct current load power and less than P2, the power request of the control system is distributed according to the output power of the hydrogen fuel cell of the upper loading and the output power of the hydrogen fuel cell of the chassis as 1:1;
when the P4 is less than or equal to the direct current load power and less than P3, the power request of the control system is distributed according to the output power of the hydrogen fuel cell of the upper loading and the output power of the hydrogen fuel cell of the chassis as 1:0;
when the P5 is less than or equal to the direct current load power and less than or equal to the P4, the power request of the control system is distributed according to the output power of the hydrogen fuel cell of the upper loading and the output power of the hydrogen fuel cell of the chassis of the upper loading is 0:1;
when the direct current load power is smaller than P5, the power request of the control system is distributed according to the output power of the hydrogen fuel cell of the upper loading and the output power of the hydrogen fuel cell of the chassis as 1:0 in order to ensure the endurance of the power system of the chassis;
S 6.3 the power distribution is further divided according to the SOC curve change of the lithium battery, when the electric quantity of the lithium battery is between SOC1 and SOC2, the fuel battery and the lithium battery are divided according to a table lookup, and when the electric quantity of the lithium battery is smaller than SOC1, the step S is performed 6.4 Distributing; when the electric quantity of the lithium battery is larger than SOC2, the hydrogen fuel battery is at idle speed, and the generated energy is 0;
S 6.4 step S 6.1 The SOC of the medium power switching point is kept in a hysteresis interval of 5% upwards;
the fuel cell system can output the maximum power if the maximum power is smaller than the step S 6 And (5) outputting the power according to the minimum value. If hydrogen leakage or other abnormal faults exist at the stage, the power is turned off, if commercial power exists, the battery power is smaller than SOC3, and the step S is entered 5 。
In the present embodiment, in step S 6 In the method, a plurality of fuel cell systems perform dynamic response processing according to abrupt change of load end power; the method comprises the following specific steps:
i: detecting the power of a load end in real time, and if the load power is smaller than power 1, setting the execution power generation amount of the hydrogen fuel cell as a power command of power 1;
II: if the load power is greater than power 1, the execution power generation amount of the hydrogen fuel cell is a power 2 power command;
III: if the load power is reduced to be lower than the power 1 in the process, the execution generating capacity of the hydrogen fuel cell is a power 1 power command;
IV: if the load is converted to be more than the power 1 power and kept for 5 minutes, the execution generating capacity of the hydrogen fuel cell is the power 2 power;
v: and (3) circularly judging the condition of the load power, and if the load power is reduced to be lower than the power 1, executing the step (III).
In this embodiment, the energy management device of the present invention increases a computer-readable storage medium having stored thereon a computer program which, when executed by a main controller, implements the method as described in any of the above.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, and various modifications and variations may be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. The method for distributing the generated power of the hydrogen fuel cell electric protection car comprises a relay, a timer, a hydrogen fuel cell, a lithium battery and an energy management device which are arranged on the electric protection car, and is characterized by comprising the following steps of:
s1, initializing a relay and a timer, judging whether the process has fault alarm information of hydrogen leakage or hydrogen deficiency, if yes, shutting down, and if not, performing step S2;
s2, performing self-checking on each component in the hydrogen fuel lithium battery, wherein a self-checking signal is normal, entering a step S3, and shutting down if the self-checking signal is abnormal or hydrogen leakage exists;
s3, starting all components in the hydrogen fuel lithium battery, judging whether the starting is successful according to a feedback signal, and entering a step S4 after the starting is successful, and shutting down if hydrogen leaks and the starting is unsuccessful in fault alarming information at the stage;
s4, detecting the SOC of the commercial power and the lithium battery, and if the commercial power exists and the SOC is less than 90%, entering a step S5; if no commercial power exists or commercial power exists and the SOC is more than 90%, S6 is entered; if the fault alarm information of hydrogen leakage exists at the stage, the machine is shut down;
s5, preparing reverse charging of the lithium battery, feeding back allowable charging information and maximum allowable chargeable current by the lithium battery, and charging the lithium battery by the inverter according to the feedback information of the lithium battery, wherein if no commercial power exists or the commercial power exists and the SOC is more than 90%, entering a step S6; if the fault alarm information of hydrogen leakage exists at the stage, the machine is shut down;
s6, performing power distribution; carrying out power distribution on the hydrogen fuel cell and the lithium battery according to the power required at the last moment;
s6.1, starting the fuel cell according to a load power distribution strategy;
s6.2, dividing the output power of each system according to the difference of the high-efficiency intervals of the hydrogen fuel cells on the upper assembly of the electric protection car and the chassis:
when the P2 is less than or equal to the direct current load power and less than or equal to the P1, the power request of the control system is distributed according to the output power of the hydrogen fuel cell of the upper loading and the output power of the hydrogen fuel cell of the chassis of 1.44:1;
when the P3 is less than or equal to the direct current load power and less than P2, the power request of the control system is distributed according to the output power of the hydrogen fuel cell of the upper loading and the output power of the hydrogen fuel cell of the chassis as 1:1;
when the P4 is less than or equal to the direct current load power and less than P3, the power request of the control system is distributed according to the output power of the hydrogen fuel cell of the upper loading and the output power of the hydrogen fuel cell of the chassis as 1:0;
when the P5 is less than or equal to the direct current load power and less than or equal to the P4, the power request of the control system is distributed according to the output power of the hydrogen fuel cell of the upper loading and the output power of the hydrogen fuel cell of the chassis of the upper loading is 0:1;
when the direct current load power is smaller than P5, the power request of the control system is distributed according to the output power of the hydrogen fuel cell of the upper loading and the output power of the hydrogen fuel cell of the chassis as 1:0 in order to ensure the endurance of the power system of the chassis;
s6.3, the power distribution is further divided according to the SOC curve change of the lithium battery, when the electric quantity of the lithium battery is between the SOC1 and the SOC2, the fuel battery and the lithium battery are divided according to a table lookup, and when the electric quantity of the lithium battery is smaller than the SOC1, the power distribution is carried out according to the step S6.4; when the electric quantity of the lithium battery is larger than SOC2, the hydrogen fuel battery is at idle speed, and the generated energy is 0;
s6.4, keeping the SOC of the power switching point in the step S6.1 at a hysteresis interval of 5% upwards;
s7, shutting down.
2. The method for distributing power generated by a hydrogen fuel cell power protection vehicle according to claim 1, wherein in step S6, a plurality of fuel cell systems each perform a dynamic response process according to a sudden change in load side power; the method comprises the following specific steps:
i: detecting the power of a load end in real time, and if the load power is smaller than power 1, setting the execution power generation amount of the hydrogen fuel cell as a power command of power 1;
II: if the load power is greater than power 1, the execution power generation amount of the hydrogen fuel cell is a power 2 power command;
III: if the load power is reduced to be lower than the power 1 in the process, the execution generating capacity of the hydrogen fuel cell is a power 1 power command;
IV: if the load is converted to be more than the power 1 power and kept for 5 minutes, the execution generating capacity of the hydrogen fuel cell is the power 2 power;
v: and (3) circularly judging the condition of the load power, and if the load power is reduced to be lower than the power 1, executing the step (III).
3. The method for distributing power generated by a hydrogen fuel cell electric power protection vehicle according to claim 2, wherein the maximum power that can be output by the fuel cell system is smaller than the value of the power required in step S6, and the power generation output is performed at the minimum value.
4. The hydrogen fuel cell power distribution method for electric power protection according to claim 2, characterized in that: if there is hydrogen leakage or other abnormal faults, shutting down, if there is commercial power, and if the battery capacity is smaller than SOC3, proceeding to step S5.
5. A computer readable storage medium, on which a computer program is stored, characterized in that the program, when executed by a main controller, implements the method according to any of claims 1-4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210554117.9A CN114932815B (en) | 2022-05-19 | 2022-05-19 | Power generation power distribution method for hydrogen fuel cell electric protection car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210554117.9A CN114932815B (en) | 2022-05-19 | 2022-05-19 | Power generation power distribution method for hydrogen fuel cell electric protection car |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114932815A CN114932815A (en) | 2022-08-23 |
| CN114932815B true CN114932815B (en) | 2023-08-29 |
Family
ID=82864765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210554117.9A Active CN114932815B (en) | 2022-05-19 | 2022-05-19 | Power generation power distribution method for hydrogen fuel cell electric protection car |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114932815B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115473329B (en) * | 2022-11-14 | 2023-03-24 | 北京亿华通科技股份有限公司 | Energy management method and device for hydrogen fuel cell standby power supply |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6847127B1 (en) * | 2002-06-28 | 2005-01-25 | Hyundai Motor Company | System and method for controlling power distribution of fuel cell hybrid electric vehicle |
| CN108819767A (en) * | 2018-06-29 | 2018-11-16 | 奇瑞汽车股份有限公司 | The control method and device of hydrogen cell automobile dynamical system |
| CN110834552A (en) * | 2019-11-11 | 2020-02-25 | 常熟理工学院 | Self-adaptive genetic double-electric coupling fuel cell automobile energy efficiency optimization method |
| CN111431167A (en) * | 2020-05-14 | 2020-07-17 | 洛阳智能农业装备研究院有限公司 | Power supply control system and method for hydrogen fuel cell and lithium battery of electric tractor |
| CN112036603A (en) * | 2020-07-28 | 2020-12-04 | 南京航空航天大学 | Hybrid energy storage system energy management strategy based on double-stack fuel cell |
| CN112937375A (en) * | 2021-01-28 | 2021-06-11 | 武汉海亿新能源科技有限公司 | Fuel cell engineering vehicle energy control method based on driving condition |
| CN113459902A (en) * | 2021-07-16 | 2021-10-01 | 西南交通大学 | Power distribution method for realizing maximum efficiency operation of fuel cell array |
| WO2022017910A1 (en) * | 2020-07-21 | 2022-01-27 | Audi Ag | Apparatus and method for splitting the power of fuel cell systems in a vehicle |
| CN114476005A (en) * | 2022-01-27 | 2022-05-13 | 广东逸动科技有限公司 | Ship and hydrogen energy power system thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2872450T3 (en) * | 2016-06-23 | 2021-11-02 | Boeing Co | Hydrogen Fuel Cell Stack and Method for Improving a Hydrogen Fuel Cell Stack |
| TWI694406B (en) * | 2019-06-24 | 2020-05-21 | 國立臺灣師範大學 | Intelligent energy distribution method and system for multi-power source vehicles |
-
2022
- 2022-05-19 CN CN202210554117.9A patent/CN114932815B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6847127B1 (en) * | 2002-06-28 | 2005-01-25 | Hyundai Motor Company | System and method for controlling power distribution of fuel cell hybrid electric vehicle |
| CN108819767A (en) * | 2018-06-29 | 2018-11-16 | 奇瑞汽车股份有限公司 | The control method and device of hydrogen cell automobile dynamical system |
| CN110834552A (en) * | 2019-11-11 | 2020-02-25 | 常熟理工学院 | Self-adaptive genetic double-electric coupling fuel cell automobile energy efficiency optimization method |
| CN111431167A (en) * | 2020-05-14 | 2020-07-17 | 洛阳智能农业装备研究院有限公司 | Power supply control system and method for hydrogen fuel cell and lithium battery of electric tractor |
| WO2022017910A1 (en) * | 2020-07-21 | 2022-01-27 | Audi Ag | Apparatus and method for splitting the power of fuel cell systems in a vehicle |
| CN112036603A (en) * | 2020-07-28 | 2020-12-04 | 南京航空航天大学 | Hybrid energy storage system energy management strategy based on double-stack fuel cell |
| CN112937375A (en) * | 2021-01-28 | 2021-06-11 | 武汉海亿新能源科技有限公司 | Fuel cell engineering vehicle energy control method based on driving condition |
| CN113459902A (en) * | 2021-07-16 | 2021-10-01 | 西南交通大学 | Power distribution method for realizing maximum efficiency operation of fuel cell array |
| CN114476005A (en) * | 2022-01-27 | 2022-05-13 | 广东逸动科技有限公司 | Ship and hydrogen energy power system thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114932815A (en) | 2022-08-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108987770B (en) | Coordinated optimization control method for multi-stack fuel cell power generation system | |
| CN104518563B (en) | The control method of charging system for electric automobile based on new energy application | |
| CN102555765B (en) | Fuel cell and lithium ion battery hybrid system | |
| CN110370951B (en) | Electric car power supply control method and system and electric car | |
| Youssef et al. | A technological review on electric vehicle DC charging stations using photovoltaic sources | |
| CN102347620A (en) | Micro grid control method | |
| CN103855724A (en) | Micro power grid system | |
| CN110474321A (en) | Combined cleaning energy electricity generation system and its operation method | |
| CN114932815B (en) | Power generation power distribution method for hydrogen fuel cell electric protection car | |
| CN111725875A (en) | Modularized distributed water-cooled battery energy storage system | |
| CN108879745B (en) | Comprehensive power generation system and method for improving unit peak regulation economy | |
| Li et al. | Research on energy management strategy of hydrogen fuel cell vehicles | |
| CN113844338A (en) | Hybrid vehicle and power supply control method and system thereof | |
| Lianfu et al. | Research on the integrated braking energy recovery strategy based on super-capacitor energy storage | |
| Zamora et al. | PEM fuel cells in applications of urban public transport | |
| Tao et al. | Research on super-capacitor and battery hybrid energy storage system applied in micro-grid | |
| CN202633970U (en) | Distributed power grid system | |
| Xu et al. | Decentralized primary frequency regulation control strategy for vehicle-to-grid | |
| CN204559220U (en) | Wind light mutual complementing power-supply controller and micro-grid system | |
| Han et al. | Experimental study on energy management strategy for fuel cell hybrid tramway | |
| Ali et al. | Intelligent hybrid energy system and grid integration using microcontrollers | |
| CN113888217A (en) | Micro-grid energy scheduling method and system | |
| KR20130066413A (en) | Active power control method of plural energy storage devices for grid connection of intermittent generation | |
| KR101367686B1 (en) | Capacity Estimation Method of Plural Energy Storage Devices for Grid Connection of Intermittent Generation | |
| Mussadiq et al. | A hybrid storage system for energy sharing and management within prosumers’ community |
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 |