CN110808389A - Multi-power electric pile control method and device of fuel cell engine - Google Patents
Multi-power electric pile control method and device of fuel cell engine Download PDFInfo
- Publication number
- CN110808389A CN110808389A CN201911007977.5A CN201911007977A CN110808389A CN 110808389 A CN110808389 A CN 110808389A CN 201911007977 A CN201911007977 A CN 201911007977A CN 110808389 A CN110808389 A CN 110808389A
- Authority
- CN
- China
- Prior art keywords
- power
- system loss
- different
- states
- minimum
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04298—Processes for controlling fuel cells or fuel cell systems
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04298—Processes for controlling fuel cells or fuel cell systems
- H01M8/04313—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
-
- 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
-
- 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
- H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Fuel Cell (AREA)
Abstract
The invention discloses a multi-power electric pile control method and a device of a fuel cell engine, wherein the method comprises the following steps: acquiring the total power demand of the current vehicle operation condition and calculating the reaction power demand; presetting a plurality of different power electric piles, forming different combination states by controlling the operation states of the plurality of different power electric piles, and calculating the minimum system loss power in the different combination states; and controlling the running states of the galvanic piles with different powers according to the combined state corresponding to the minimum system loss power. According to the invention, the minimum system loss power under different combination states is calculated by reflecting the power requirement, and the technical means of controlling the operation of the galvanic piles with different powers according to the combination state corresponding to the minimum system loss power is adopted, so that the technical problems of single galvanic pile power of the fuel cell engine system and low operation efficiency of the engine system caused by incapability of adjusting power combination in the prior art are solved, the waste of the power generated by the galvanic piles is reduced, and the efficiency of the fuel cell engine system is enhanced.
Description
Technical Field
The invention relates to the technical field of engines, in particular to a multi-power electric pile control method and a device of a fuel cell engine.
Background
Fuel cell technology is gaining increased attention for use in automotive power systems. Compared with the traditional battery, the fuel battery has the main characteristic of relying on external fuel supply, so that the working characteristic of the fuel battery is closer to that of an internal combustion engine. Fuel cells also have unique advantages over internal combustion engines. On one hand, the energy conversion efficiency of the fuel cell can reach more than 60 percent, which is 2 to 3 times of that of the internal combustion engine; on the other hand, since the fuel cell generally uses hydrogen as fuel, the reaction product is clean water, and no pollution gas such as oxides containing carbon and nitrogen is generated.
At present, the net output power of a domestic fuel cell engine system is mostly below 60kW, and if the development of a high-power fuel cell engine is to be realized, the high power is realized by connecting a plurality of equal low-power galvanic piles in series under the limitation of low power of a galvanic pile. However, the simple series connection can cause the hydrogen circulation flow to be overlarge and the air demand to be very large, and no large-flow circulation pump or air compressor is available on the market, so that the system integration cannot be realized or the complexity of the realization is extremely high, the system reliability is reduced, the power consumption of an auxiliary machine system is increased, and the output efficiency and the specific power of an engine system are reduced.
The high-power engine system simply realized by connecting a plurality of stacks in series also has the defects that each galvanic pile can not operate independently, all galvanic piles need to be opened and closed simultaneously and operate under the same working condition, so that the lowest operating power of the engine system is higher, and energy waste is caused to a certain degree.
In addition, an engine system integrated by an equal-power dual-fuel battery system is also available, but at present, the scheme mainly uses two independent subsystems with equal power, and the two subsystems are relatively independent on a gas circuit and a water circuit and are only electrically connected in parallel. The scheme also can not avoid that the hydrogen circulation flow is large, a plurality of hydrogen circulation pumps need to be configured, so that the reliability of the system is reduced, the power consumption of an auxiliary engine system is increased, the output efficiency of an engine system is reduced, and the like.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. To this end, it is an object of the present invention to provide a multi-power stack control method of a fuel cell engine, which can control different power stacks according to power requirements of loads so that the whole engine system always operates at a high efficiency point.
To this end, a second object of the present invention is to provide a multi-power stack control apparatus of a fuel cell engine.
The technical scheme adopted by the invention is as follows:
in a first aspect, the invention provides a multi-power electric pile control method of a fuel cell engine, which comprises the steps of obtaining the total power demand of the current vehicle operation condition and calculating the reaction power demand;
presetting a plurality of different power electric piles, forming different combination states by controlling the operation states of the plurality of different power electric piles, and calculating the minimum system loss power in the different combination states;
and controlling the running states of the galvanic piles with different powers according to the combined state corresponding to the minimum system loss power.
Further, the calculation of the minimum system loss power is specifically as follows:
calculating the system power loss of each combination state under the condition of meeting the response power requirement;
and calculating the system loss power with the minimum loss power in a plurality of system loss powers and defining the system loss power with the minimum loss power as the minimum system loss power.
Further, the multi-power electric pile control method of the fuel cell engine further comprises the following steps:
presetting a state transition threshold value, calculating the ratio of the minimum system loss power to the system loss power in the current state, comparing the ratio with the state transition threshold value to obtain a comparison result,
and changing the current states of the different power electric piles according to the comparison result.
Further, changing the current states of the different power galvanic piles according to the comparison result specifically includes:
if the comparison result is that the ratio is larger than the state transition threshold value, keeping the current states of the galvanic piles with different powers unchanged;
and if the comparison result is that the ratio is smaller than the state transition threshold value, replacing the current combined state of the galvanic piles with different powers according to the combined state of the galvanic piles with the minimum system power loss.
Further, three different power galvanic piles are arranged and respectively defined as a high-power galvanic pile, a medium-power galvanic pile and a low-power galvanic pile, and six different combination states are obtained through the operation states of the high-power galvanic pile, the medium-power galvanic pile and the low-power galvanic pile.
In a second aspect, the present invention provides a multi-power stack control device of a fuel cell engine, comprising:
the acquisition module is used for acquiring the total power requirement of the current vehicle operation condition to obtain the reaction power requirement;
the calculation module is used for calculating the minimum system loss power of the galvanic piles with different power in different combination states;
and the control module is used for controlling the running states of the current electric piles with different powers according to the combined state corresponding to the minimum system loss power.
Further, the multi-power pile control device of the fuel cell engine further comprises a migration volume comparison module, the migration volume comparison module presets a state migration threshold value, the migration volume comparison module obtains a ratio value after the ratio of the minimum loss system power to the system loss power in the current state, the ratio value is compared with the state migration threshold value to obtain a comparison result, and the control module controls the current states of the piles with different powers according to the comparison result.
Further, the calculation module includes:
the system loss power calculation unit is used for calculating the difference value between the power in each combination state and the reaction power demand under the condition of meeting the total power demand so as to obtain a plurality of system loss powers;
and the minimum system loss power calculation unit is used for calculating the minimum value in the system loss powers, namely the minimum system loss power.
The invention has the beneficial effects that:
according to the invention, by the technical means of calculating the reaction power requirement after acquiring the total power requirement, calculating the minimum system loss power under different combination states, and controlling the operation of the galvanic piles with different powers according to the combination state corresponding to the minimum system loss power, the technical problems of energy waste and low operation efficiency of the engine system caused by single galvanic pile power of the fuel cell engine system and incapability of adjusting the power combination in the prior art are solved, and the waste of power generated by the galvanic piles can be reduced, and the efficiency of the fuel cell engine system is enhanced.
Drawings
FIG. 1 is a block diagram of an embodiment of a multi-power stack control arrangement for a fuel cell engine according to the present invention;
FIG. 2 is a schematic circuit diagram of a stack in an embodiment of a multi-power stack control apparatus for a fuel cell engine according to the present invention;
FIG. 3 is a flow chart of an embodiment of a multi-power stack control method of a fuel cell engine of the present invention;
fig. 4 is a detailed flowchart of an embodiment of a multi-power stack control method of a fuel cell engine according to the present invention.
Reference numerals: 10. an acquisition module; 20. a calculation module; 21. a system loss power calculation unit; 22. a minimum system loss power calculation unit; 30. a control module; 40. and a migration quantity comparison module.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
Referring to fig. 1, an embodiment of the invention discloses a multi-power stack control device of a fuel cell engine, comprising: the system comprises an obtaining module 10, a calculating module 20 and a control module 30, wherein the obtaining module 10 is used for obtaining a total power requirement of a current vehicle operation condition, so as to obtain a reaction power requirement, the calculating module 20 is used for calculating minimum system loss power of different power stacks in each combination state under the condition that the total power requirement is met, and the control module 30 is used for controlling the current operation states of the different power stacks according to the combination state corresponding to the minimum system loss power. The obtaining module 10 is connected to a vehicle controller, the vehicle controller communicates with the obtaining module 10 according to the vehicle age operating condition, the obtaining module 10 obtains the total power requirement from the vehicle controller, because the hydrogen system loses a part of power after reacting through the galvanic pile, the galvanic pile generates power and loses a part of power when reaching the vehicle controller, but the power loss of the process of the galvanic pile generating power and reaching the vehicle controller is stable, so the reaction power requirement required by the galvanic pile reaction is calculated according to the total power requirement, namely the power required to be output under the galvanic pile reaction of different combination states, the calculating module 20 calculates the minimum system loss power of different combination states of the galvanic piles according to the reaction power requirement, and the minimum system loss power can be obtained, namely, the power generated by the running of the galvanic piles with different powers in which combination state is the minimum reaction power requirement can be judged, the control module 30 controls the operation states of the galvanic piles with different powers according to the combination state, so that the reaction power requirement is reasonably distributed to the galvanic piles with different powers, and the transmitter system always operates at the highest efficiency.
Preferably, the multi-power cell stack control device of the fuel cell engine further comprises a migration volume comparison module 40, the migration volume comparison module 40 presets a state transition threshold, a ratio is obtained by a ratio of minimum system loss power to system loss power in a current state, the ratio is compared with the state transition threshold to obtain a comparison result, the control module 30 changes a current combination state of the cell stacks with different powers according to the comparison result, and then controls operation states of the cell stacks with different powers. Whether the system loss power loss exceeds a migration threshold value in the current state can be judged through the setting of the migration quantity comparison module 40, if the ratio of the minimum system loss power to the current system loss power is larger than the migration threshold value, the combination state of the current different power electric piles is not changed, if the ratio of the minimum system loss power to the current system loss power is smaller than the migration threshold value, the power of the minimum system loss power loss is smaller, the combination state corresponding to the minimum system loss power needs to be changed into the current combination, and therefore the engine system can be operated in the high-efficiency state all the time.
The calculation module 20 includes: the system loss power calculation unit 21 calculates a difference between the power generated by the different power stacks in each combination state and the reactive power demand under the condition of meeting the total power demand to obtain a plurality of system loss powers, and the minimum system loss power calculation unit 22 is used for calculating a minimum value in the plurality of system loss powers to obtain the minimum system loss power. And calculating a combined state corresponding to the minimum system loss power through the minimum system loss power, wherein the power generated by different power operations in the combined state is the highest system of the engine.
In summary, the total power demand is obtained by the obtaining module 10 to obtain the reaction power demand, the total power demand is obtained by the vehicle controller calculating the vehicle operation condition, the reaction power demand can be obtained by adding the power lost in the process from the electric pile to the automobile controller through the total power demand, and the reaction power demand is the power required by the electric pile reaction, therefore, when the hydrogen system is adopted to generate power and the electric pile under different combination states runs, part of the power is lost, and when the electric pile under different combination states generates output power and outputs the output power to the automobile, part of the power is also lost, but the hydrogen quantity of the hydrogen system is fixed, namely the reaction power demand is obtained by the power required by the reactor reaction of the hydrogen system, it is desirable to reduce the amount of power lost in the hydrogen system to stack reaction process by selecting the stack for the optimal combined state. The system loss calculating unit calculates a plurality of system loss powers between the power generated by the different power electric piles in different combination states and the response power demand, the minimum system loss power calculates the minimum value of the plurality of system loss powers to be set as the minimum system loss power, and the control module 30 starts the electric piles with different power according to the running states of the electric piles with different power in different combination states corresponding to the minimum system loss power so as to provide the highest power for the automobile, thereby reducing the loss and waste of the system power.
Example two: referring to fig. 1 and 2, in this embodiment, three different power stacks are provided, which mainly include a high power stack, a medium power stack and a low power stack, a first end of the high power stack is connected to a first end of the medium power stack, a second end of the medium power stack is connected to a first end of the low power stack, a second end of the low power stack is connected to a dc voltage boosting device, a second end of the high power stack is connected to the dc voltage boosting device, an output end of the dc voltage boosting device is connected to an electric device, and the minimum system loss power is realized by controlling the connection among the high power stack, the medium power stack and the low power stack. A switch KT is arranged between the direct-current boosting device and the high-power electric pile, a first double-circuit selection switch K1 is arranged between the switch KT and the high-power electric pile, a second double-circuit selection switch K2 is arranged between the high-power electric pile and the medium-power electric pile, a third double-circuit selection switch K3 is arranged between the medium-power electric pile and the low-power electric pile, the high-power electric pile, the medium-power electric pile and the low-power electric pile are combined into different power by the closing and the opening of the first double-circuit selection switch K1, the second double-circuit selection switch K2 and the third double-circuit selection switch K3, and the combined electric pile boosts the voltages of the electric piles into suitable voltages for electric equipment to use through the direct-current boosting device.
When the obtaining module 10 obtains the total power requirement, the reactive power requirement is obtained, wherein at least 6 combination states can be formed according to different combinations of the high-power electric pile, the medium-power electric pile and the low-power electric pile. By the power generated by the different power stacks in the 6 combination states, the system lost power calculation unit 21 calculates the difference between the power generated in the 6 combination states and the reactive power demand to obtain 6 system lost powers, wherein the system lost powers in the 6 combination states are all the minimum system lost power, for example, when only the low-power stacks are operated, it is necessary to calculate how much power generated by the low-power stacks is the minimum difference with the reactive power demand. Even in a combined state that the high-power electric piles, the medium-power electric piles and the low-power electric piles are started simultaneously, the difference value between the power generated by the high-power electric piles, the medium-power electric piles and the low-power electric piles and the reaction power requirement is minimum. After the 6 system loss powers are obtained, the 6 system loss powers are compared by the minimum system loss power unit 22 to obtain the minimum system loss power. After the minimum system power loss is obtained, the minimum system power loss needs to be inversely proportional to the power loss in the current combination state to obtain a ratio, the migration amount comparison module 40 compares the ratio with the migration threshold, if the ratio is greater than the migration threshold, the control module 30 keeps the current combination state, and changes the on or off states of the first two-way selector switch K1, the second two-way selector switch K2, and the third two-way selector switch K3. If the ratio is smaller than the operation state of the high-power electric pile, the medium-power electric pile and the low-power electric pile in the combined state corresponding to the minimum system loss power, the control module 30 controls the switch KT to be closed and then controls the high-power electric pile, the medium-power electric pile and the low-power electric pile through the first double-circuit selection switch K1, the second double-circuit selection switch K2 and the third double-circuit selection switch K3 so as to connect the high-power electric pile, the medium-power electric pile and the low-power electric pile in series to supply power to the electric equipment together, and therefore the generated power loss is minimum.
In summary, after the minimum system loss power is calculated by the minimum system loss power unit 22, according to the combination state corresponding to the minimum system loss power, the control module 30 controls the first dual-way selector switch K1, the second dual-way selector switch K2, and the third dual-way selector switch K3 to be turned on or off, so as to implement different combinations among the high power electric pile, the medium power electric pile, and the low power electric pile to form different power outputs, thereby providing the most efficient power to the electric equipment, and reducing the loss of the system power.
Example three: referring to fig. 3, an embodiment of the invention discloses a multi-power stack control method of a fuel cell engine, which includes:
acquiring a total power demand of a current vehicle operating condition to obtain a reaction power demand;
the vehicle controller calculates the total power required by the vehicle operation according to the vehicle operation condition, and then the total power requirement can be obtained from the vehicle controller and then the reaction power requirement is calculated, so that the power required by the vehicle in the current state can be simply and easily obtained.
Presetting a plurality of different power electric piles, forming different combination states by controlling the operation states of the plurality of different power electric piles, and calculating the minimum system loss power in the different combination states;
the calculation of the minimum system loss power is specifically as follows:
calculating the system loss power of each combination state under the condition of meeting the total power requirement;
and calculating the system loss power with the minimum loss power in the system loss powers and defining the system loss power with the minimum loss power as the minimum system loss power.
The minimum system loss power is calculated according to the system loss power between the power generated by the different power galvanic piles in each combined state and the reaction power requirement, so that the minimum system loss power is calculated simply in the corresponding combined state in the minimum system loss power.
Presetting a state transition threshold, calculating the ratio of the minimum system loss power to the system loss power in the current state, comparing the ratio with the state transition threshold to obtain a comparison result,
and changing the current states of the different power electric piles according to the comparison result.
The specific way of changing the current states of the galvanic piles with different powers according to the comparison result is as follows:
if the ratio of the minimum system loss power to the system loss power in the current state is larger than the state transition threshold value, keeping the current states of the galvanic piles with different powers unchanged;
and if the minimum system loss power and the system loss power in the current state are smaller than the state transition threshold value, replacing the current combined state of the galvanic piles with different powers according to the combined state of the galvanic piles with the minimum system loss power.
And judging whether the system loss power in the current state is the minimum loss power in each combined state or not by presetting a transition threshold and then obtaining the ratio of the minimum system loss power to the system loss power in the current state, so that the minimum loss power of the vehicle is favorably provided.
And controlling the running states of the galvanic piles with different powers according to the combined state corresponding to the minimum system loss power.
Example four: referring to fig. 4, three different power galvanic piles are provided in the present invention and are respectively defined as a high power galvanic pile, a medium power galvanic pile, and a low power galvanic pile, and six different combinations of the high power galvanic pile, the medium power galvanic pile, and the low power galvanic pile may be provided, wherein the high power galvanic pile, the medium power galvanic pile, and the low power galvanic pile are connected in series and are controlled by a two-way selector switch KT, so that combinations of the different power galvanic piles are controlled by controlling the closing and closing of the different two-way selector switches, the combinations of the high power galvanic pile, the medium power galvanic pile, and the low power galvanic pile in the present embodiment are shown in table 1, wherein S0-S6 are in different combination states.
Table 1: electric pile running state table
The corresponding operating power of the high-power galvanic pile is P1, the operating power of the medium-power galvanic pile is P2, the operating power of the small-power galvanic pile is P3, and P1 is more than or equal to P1max for P1 min; p2min is less than or equal to P2 is less than or equal to P2 max; p3 is more than or equal to P3min and more than or equal to P3 max; pmin and Pmax represent the minimum and maximum power allowed to be output by each cell stack under each working condition.
The self-defined system operation LOSS function is LOSS, and LOSS (S1) is the difference between the electric power generated by the galvanic pile in the state of S1, after the electric power is subtracted from the theoretical power consumed by the auxiliary machine and the fuel fully reacts, i.e. the system LOSS power, wherein in the state of S1, the difference between the net power generated by the galvanic pile in the case of only small power operation and the theoretical power consumed by the fuel, i.e. the theoretical power demand of the system, and the minimum value of the difference between the net reactive power demand and the theoretical power consumed by the galvanic pile in combined operation is calculated. For example, if the system demand power is 20kW, if the state is at S1, only the low-power electric pile P3 is operated, P3 is 24kW, the auxiliary machinery power is 4kW, and the net output power is 24-4-20, which is the system demand power; if the theoretical power of the system consumed fuel is 30kW, LOSS (S1) is 30-20-10, and 10kW is the system power LOSS when only the low-power cell stack is operated. MIN (LOSS (S6)) represents the system power LOSS in response to the power demand P in different combinations of P1, P2 and P3, and can calculate P ≈ a × P1+ b × P2+ c × P3 and the minimum system power LOSS in different values of a, b and c.
Calculating the minimum system loss power of the plurality of system loss powers obtained in the six combination states of S0-S6, wherein the formula is as follows:
temp [ S, LOSS, P1, P2, P3] ═ MIN { LOSS (S1), LOSS (S2), LOSS (S3), MIN (LOSS (S4)), MIN (LOSS (S5)), MIN (LOSS (S6)) } represents that Temp [ S, LOSS, P1, P2, P3] is established as a temporary variable array, then minimum system LOSS power of 6 states is calculated, and then state values S, minimum LOSS power LOSS, P1, P2, P3 corresponding to the minimum LOSS state are respectively assigned to Temp [ S, LOSS, P1, P2, P3], namely, minimum system LOSS power under different combination states is calculated.
When the obtained ratio is larger than the migration threshold, the combined state of the current electric piles is kept to supply power to the electric equipment, if the ratio is smaller than the migration threshold, the system loss power in the current state is larger than the minimum system loss power, and the combined state of the electric piles with different powers corresponding to the minimum system loss power needs to be replaced by the original combined state, so that the difference between the power generated in the current combined state and the response power demand is minimum, and the waste of power is reduced. The corresponding different combinations of the high-power electric pile, the medium-power electric pile and the low-power electric pile under the minimum system loss power are obtained, so that the system can operate by a single electric pile or a plurality of electric piles with different powers, the energy distribution of the electric piles with different powers is carried out according to the reaction power requirement, and the engine system always operates at high efficiency.
In conclusion, after the total power requirement is obtained, the reaction power requirement required to be output by the reactor is calculated, whether the reaction power requirement is smaller than the power of the low-power reactor or not is judged, and if yes, the S0 state is adopted, that is, any one reactor is not started; otherwise, calculating the difference value between the power generated under the six combined states of the high-power electric pile, the medium-power electric pile and the low-power electric pile and the reaction power demand as system loss power, then calculating the minimum system loss power of the six system loss powers, obtaining the system loss power under the minimum system loss power and the current state, judging whether the minimum system loss power is minimum, and if so, replacing the existing combined state with the combined state corresponding to the minimum system loss power, so that the fuel cell engine system generates the most efficient power to provide for the electric equipment.
While the preferred embodiments of the present invention have been illustrated and described, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (8)
1. A multi-power stack control method for a fuel cell engine, comprising:
acquiring the total power demand of the current vehicle operation condition and calculating the reaction power demand;
presetting a plurality of different power electric piles, forming different combination states by controlling the operation states of the plurality of different power electric piles, and calculating the minimum system loss power in the different combination states;
and controlling the running states of the galvanic piles with different powers according to the combined state corresponding to the minimum system loss power.
2. The multi-power stack control method of a fuel cell engine according to claim 1, wherein the calculation of the minimum system loss power is specifically:
calculating the system loss power of each combination state under the condition of meeting the total power requirement;
and calculating the system loss power with the minimum loss power in a plurality of system loss powers and defining the system loss power with the minimum loss power as the minimum system loss power.
3. The multi-power stack control method of a fuel cell engine according to claim 1, further comprising the steps of:
presetting a state transition threshold value, calculating the ratio of the minimum system loss power to the system loss power in the current state, comparing the ratio with the state transition threshold value to obtain a comparison result,
and changing the current states of the different power electric piles according to the comparison result.
4. The multi-power stack control method of a fuel cell engine according to claim 3, wherein changing the current state of the different power stacks according to the comparison result is specifically:
if the comparison result is that the ratio is larger than the state transition threshold value, keeping the current states of the galvanic piles with different powers unchanged;
and if the comparison result is that the ratio is smaller than the state transition threshold value, replacing the current combined state of the galvanic piles with different powers according to the combined state of the galvanic piles with the minimum system power loss.
5. The multi-power stack control method of a fuel cell engine according to claim 2, wherein three different power stacks are provided and defined as a high power stack, a medium power stack and a low power stack, respectively, and six different combination states are obtained by the operation states of the high power stack, the medium power stack and the low power stack.
6. A multi-power stack control apparatus of a fuel cell engine, comprising:
the acquisition module is used for acquiring the total power requirement of the current vehicle operation condition to obtain the reaction power requirement;
the calculation module is used for calculating the minimum system loss power of the galvanic piles with different power in different combination states;
and the control module is used for controlling the running states of the current electric piles with different powers according to the combined state corresponding to the minimum system loss power.
7. The multi-power cell stack control device of the fuel cell engine according to claim 6, further comprising a migration volume comparison module, wherein the migration volume comparison module presets a state transition threshold, the migration volume comparison module obtains a ratio of a minimum loss system power to a system loss power in a current state, compares the ratio with the state transition threshold to obtain a comparison result, and the control module controls the current states of the cell stacks with different powers according to the comparison result.
8. The multi-power stack control device of a fuel cell engine according to claim 6, wherein the calculation module includes:
the system loss power calculation unit is used for calculating the difference value between the power in each combination state and the reaction power demand under the condition of meeting the total power demand so as to obtain a plurality of system loss powers;
and the minimum system loss power calculation unit is used for calculating the minimum value in the system loss powers, namely the minimum system loss power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911007977.5A CN110808389B (en) | 2019-10-22 | 2019-10-22 | Multi-power electric pile control method and device of fuel cell engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911007977.5A CN110808389B (en) | 2019-10-22 | 2019-10-22 | Multi-power electric pile control method and device of fuel cell engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110808389A true CN110808389A (en) | 2020-02-18 |
| CN110808389B CN110808389B (en) | 2021-01-15 |
Family
ID=69488843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911007977.5A Active CN110808389B (en) | 2019-10-22 | 2019-10-22 | Multi-power electric pile control method and device of fuel cell engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110808389B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111916802A (en) * | 2020-08-13 | 2020-11-10 | 品华动力能源技术(深圳)有限公司 | Control method and system of fuel power battery |
| CN111953035A (en) * | 2020-07-17 | 2020-11-17 | 华中科技大学鄂州工业技术研究院 | Multi-module solid oxide fuel cell energy management system |
| CN113540520A (en) * | 2021-07-23 | 2021-10-22 | 成都亿华通动力科技有限公司 | Asynchronous starting method and device of double galvanic piles |
| CN113799658A (en) * | 2020-06-17 | 2021-12-17 | 北京亿华通科技股份有限公司 | Multi-fuel-cell energy management method and system and fuel cell vehicle |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10010985A1 (en) * | 2000-03-07 | 2001-09-20 | Daimler Chrysler Ag | Fuel cell system operating method has individual fuel cells or fuel cell stacks switched into and out of operation for matching required power output |
| US20100183936A1 (en) * | 2009-01-16 | 2010-07-22 | Ford Motor Company | Modular fuel cell power system |
| WO2017010069A1 (en) * | 2015-07-16 | 2017-01-19 | パナソニックＩｐマネジメント株式会社 | Fuel cell system and operating method for same |
| CN106787893A (en) * | 2016-12-14 | 2017-05-31 | 北京天诚同创电气有限公司 | Modular electrical operated control method and device |
| CN107738587A (en) * | 2017-10-13 | 2018-02-27 | 安徽江淮汽车集团股份有限公司 | A kind of fuel battery power management method |
| CN108539231A (en) * | 2018-03-20 | 2018-09-14 | 佛山（云浮）氢能产业与新材料发展研究院 | A kind of control method for coordinating and system of more set fuel cell systems |
| CN108987770A (en) * | 2018-07-18 | 2018-12-11 | 西南交通大学 | A kind of coordinating and optimizing control method of more stack fuel cell electricity generation systems |
| CN109921070A (en) * | 2019-04-17 | 2019-06-21 | 扬州亚星客车股份有限公司 | A kind of test device and method of fuel cell system for vehicles |
| CN110140248A (en) * | 2017-01-11 | 2019-08-16 | 宝马股份公司 | For adjusting the method and control unit of fuel cell pile |
-
2019
- 2019-10-22 CN CN201911007977.5A patent/CN110808389B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10010985A1 (en) * | 2000-03-07 | 2001-09-20 | Daimler Chrysler Ag | Fuel cell system operating method has individual fuel cells or fuel cell stacks switched into and out of operation for matching required power output |
| US20100183936A1 (en) * | 2009-01-16 | 2010-07-22 | Ford Motor Company | Modular fuel cell power system |
| WO2017010069A1 (en) * | 2015-07-16 | 2017-01-19 | パナソニックＩｐマネジメント株式会社 | Fuel cell system and operating method for same |
| CN106787893A (en) * | 2016-12-14 | 2017-05-31 | 北京天诚同创电气有限公司 | Modular electrical operated control method and device |
| CN110140248A (en) * | 2017-01-11 | 2019-08-16 | 宝马股份公司 | For adjusting the method and control unit of fuel cell pile |
| CN107738587A (en) * | 2017-10-13 | 2018-02-27 | 安徽江淮汽车集团股份有限公司 | A kind of fuel battery power management method |
| CN108539231A (en) * | 2018-03-20 | 2018-09-14 | 佛山（云浮）氢能产业与新材料发展研究院 | A kind of control method for coordinating and system of more set fuel cell systems |
| CN108987770A (en) * | 2018-07-18 | 2018-12-11 | 西南交通大学 | A kind of coordinating and optimizing control method of more stack fuel cell electricity generation systems |
| CN109921070A (en) * | 2019-04-17 | 2019-06-21 | 扬州亚星客车股份有限公司 | A kind of test device and method of fuel cell system for vehicles |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113799658A (en) * | 2020-06-17 | 2021-12-17 | 北京亿华通科技股份有限公司 | Multi-fuel-cell energy management method and system and fuel cell vehicle |
| CN111953035A (en) * | 2020-07-17 | 2020-11-17 | 华中科技大学鄂州工业技术研究院 | Multi-module solid oxide fuel cell energy management system |
| CN111953035B (en) * | 2020-07-17 | 2021-11-30 | 华中科技大学鄂州工业技术研究院 | Multi-module solid oxide fuel cell energy management system |
| CN111916802A (en) * | 2020-08-13 | 2020-11-10 | 品华动力能源技术(深圳)有限公司 | Control method and system of fuel power battery |
| CN113540520A (en) * | 2021-07-23 | 2021-10-22 | 成都亿华通动力科技有限公司 | Asynchronous starting method and device of double galvanic piles |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110808389B (en) | 2021-01-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110808389B (en) | Multi-power electric pile control method and device of fuel cell engine | |
| CN112046486B (en) | Fuel cell automobile output power correction method, system and storage medium | |
| CN101868881B (en) | Fuel cell system | |
| CN101657926B (en) | Fuel cell system | |
| US6528977B2 (en) | Power supply system provided with photovoltaic generator | |
| CN100534828C (en) | Fuel cell system and electric vehicle including the fuel cell system | |
| US7588847B2 (en) | Advanced controls concept for hybrid fuel cell systems | |
| US7808129B2 (en) | Fuel-cell based power generating system having power conditioning apparatus | |
| CN101322272A (en) | Fuel cell system | |
| US20220320541A1 (en) | Fuel cell control method, control system and electric vehicle | |
| CN111347940A (en) | Energy management control method for electric-electric hybrid fuel cell automobile | |
| US20100316921A1 (en) | Fuel cell system | |
| CN108258810A (en) | Direct current photovoltaic energy-storage system and its control method | |
| US20160190619A1 (en) | Control method of fuel cell system, fuel cell automobile, and fuel cell system | |
| CN110247081B (en) | Method for self-adjusting anode pressure and flow of fuel cell with circulating pump | |
| CN110758122A (en) | Fuel cell efficiency optimization method of electricity-electricity hybrid power system | |
| JP2009059558A (en) | Fuel cell system | |
| CN102473943A (en) | Fuel cell system | |
| WO2024152964A1 (en) | Fuel-cell power system, and output-power control method therefor | |
| KR20070106334A (en) | Control method of air supplier fuel cell system | |
| CN113725465A (en) | Fuel cell system | |
| US8685578B2 (en) | Fuel cell system for a vehicle, method for monitoring a fuel cell system | |
| JP2004311112A (en) | Fuel cell system, vehicle with fuel cell system, and method for controlling fuel cell system | |
| US20080050626A1 (en) | Control strategy to prevent humidity cycling in a fuel cell | |
| CN114824370A (en) | Whole vehicle energy control method of double-pile fuel cell system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |