CN111916802A - Control method and system of fuel power battery - Google Patents
Control method and system of fuel power battery Download PDFInfo
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- CN111916802A CN111916802A CN202010814268.4A CN202010814268A CN111916802A CN 111916802 A CN111916802 A CN 111916802A CN 202010814268 A CN202010814268 A CN 202010814268A CN 111916802 A CN111916802 A CN 111916802A
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- 239000000446 fuel Substances 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 title claims abstract description 24
- 238000006243 chemical reaction Methods 0.000 claims description 43
- 230000003044 adaptive effect Effects 0.000 claims description 28
- 239000007788 liquid Substances 0.000 claims description 18
- 239000003792 electrolyte Substances 0.000 claims description 9
- 238000010586 diagram Methods 0.000 description 4
- 230000002572 peristaltic effect Effects 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 238000011217 control strategy Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000036632 reaction speed Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 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
- H01M8/04694—Processes for controlling fuel cells or fuel cell systems characterised by variables to be controlled
- H01M8/04955—Shut-off or shut-down of fuel cells
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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
- H01M8/04223—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids during start-up or shut-down; Depolarisation or activation, e.g. purging; Means for short-circuiting defective fuel cells
- H01M8/04225—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids during start-up or shut-down; Depolarisation or activation, e.g. purging; Means for short-circuiting defective fuel cells during start-up
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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
- H01M8/04992—Processes for controlling fuel cells or fuel cell systems characterised by the implementation of mathematical or computational algorithms, e.g. feedback control loops, fuzzy logic, neural networks or artificial intelligence
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- 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
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Abstract
The invention relates to the technical field of batteries, in particular to a control method and a control system of a fuel power battery, wherein the control method comprises the following steps: the method comprises the steps of obtaining power required by load equipment, calculating the number of electric piles required to be started according to the power required by the load equipment and the output power of each electric pile, and starting the corresponding number of electric piles according to the number of the electric piles required to be started. Therefore, on the basis of ensuring that the output power of the galvanic pile meets the power required by load equipment, the number of the galvanic piles can be reduced as much as possible, and the energy is saved.
Description
Technical Field
The invention relates to the technical field of batteries, in particular to a control method and a control system of a fuel power battery.
Background
The electric piles of the existing fuel power battery are uniformly controlled under a control system, namely all the electric piles are controlled to be started and closed simultaneously, so that the total power output by all the electric piles is a fixed value and cannot be adjusted according to the power required by an actual load, and if the total power output by the electric piles is larger and the power required by the actual load is smaller, energy waste is caused.
Disclosure of Invention
The invention mainly solves the technical problem that the output power of the galvanic pile can not be adjusted according to the power required by the actual load in the prior art.
A method of controlling a fuel power cell, comprising:
acquiring power required by load equipment;
calculating the number of the electric piles required to be started according to the power required by the load equipment and the output power of each electric pile;
and starting the corresponding number of the electric piles according to the number of the electric piles required to be started.
In one embodiment, the calculating the number of the electric piles required to be started according to the power required by the load equipment and the output power of each electric pile comprises: according to the power required by the load equipment, the number of the galvanic piles which meet the condition that the sum of the output power is larger than the power required by the load equipment is calculated, and the minimum value of the number of the galvanic piles is taken as the number of the galvanic piles required to be started. In other words, it can be understood that: and calculating the minimum value of M, so that the sum of the power output by the M electric piles is larger than the power required by the load equipment, and M is the number of the electric piles required to be started.
In one embodiment, further comprising: and converting the voltage and/or the current output by the galvanic pile through a conversion circuit to obtain the adaptive voltage and/or the adaptive current required by the load equipment, and supplying power to the load equipment by adopting the adaptive voltage and/or the adaptive current.
In one embodiment, further comprising:
calculating the output power of the voltage conversion circuit according to the adaptive voltage and/or adaptive current output by the voltage conversion circuit;
judging whether the ratio of the output power of the voltage conversion circuit to the output power of the galvanic pile is greater than a first preset value or not, and if so, determining that the current working state of the galvanic pile meets the preset requirement; if not, adjusting the working parameters of the galvanic pile to improve the ratio.
The ratio of the output power of the voltage conversion circuit to the output power of the galvanic pile is greater than 0 and less than 1.
In one embodiment, said adjusting an operating parameter of said stack to increase said ratio comprises:
judging whether the difference value of the first preset value and the ratio of the output power of the voltage conversion circuit to the output power of the galvanic pile is larger than 0.1, if so, reducing the concentration of electrolyte to improve the ratio; if not, adjusting the liquid inlet and outlet speeds of the galvanic pile to improve the ratio.
A control system for a fuel power cell, comprising:
the acquisition module is used for acquiring the power required by the load equipment;
the calculating module is used for calculating the number of the electric piles required to be started according to the power required by the load equipment and the output power of each electric pile;
and the control module is used for starting the corresponding number of the electric piles according to the number of the electric piles required to be started.
In one embodiment, the calculating the number of the electric piles required to be started according to the power required by the load equipment and the output power of each electric pile comprises: according to the power required by the load equipment, the number of the galvanic piles which meet the condition that the sum of the output power is larger than the power required by the load equipment is calculated, and the minimum value of the number of the galvanic piles is taken as the number of the galvanic piles required to be started. It can also be understood that: and calculating the minimum value of M, so that the sum of the power output by the M electric piles is larger than the power required by the load equipment, and M is the number of the electric piles required to be started.
In one embodiment, further comprising:
and the conversion module is used for converting the voltage and/or the current output by the galvanic pile to obtain the adaptive voltage and/or the adaptive current required by the load equipment, and the adaptive voltage and/or the adaptive current are adopted to supply power to the load equipment.
In one embodiment, the acquisition module is further configured to acquire the adapted voltage and/or the adapted current output by the conversion module;
the control system further comprises: the judging module is used for judging whether the ratio of the output power of the converting module to the output power of the galvanic pile is greater than a first preset value or not, and if so, determining that the current working state of the galvanic pile meets the preset requirement; if not, adjusting the working parameters of the galvanic pile to improve the ratio.
The ratio of the output power of the voltage conversion circuit to the output power of the galvanic pile is greater than 0 and less than 1.
In one embodiment, said adjusting an operating parameter of said stack to increase said ratio comprises:
judging whether the difference value of the first preset value and the ratio of the output power of the voltage conversion circuit to the output power of the galvanic pile is larger than 0.1, if so, reducing the concentration of electrolyte to improve the ratio; if not, adjusting the liquid inlet and outlet speeds of the galvanic pile to improve the ratio.
The control method of the fuel power cell according to the above embodiment includes: the method comprises the steps of obtaining the power required by load equipment, calculating the number of the galvanic piles required to be started according to the power required by the load equipment and the output power of each galvanic pile, and starting the corresponding number of galvanic piles according to the number of the galvanic piles required to be started. Therefore, on the basis of ensuring that the output power of the galvanic pile meets the power required by load equipment, the number of the galvanic piles can be reduced as much as possible, and the energy is saved.
Drawings
FIG. 1 is a flow chart of a fuel cell control method according to an embodiment of the present application;
FIG. 2 is a schematic structural diagram of a fuel cell control system according to an embodiment of the present disclosure;
FIG. 3 is a schematic circuit diagram of a fuel cell control system according to another embodiment of the present application;
FIG. 4 is a schematic structural diagram of a fuel cell control system according to another embodiment of the present application;
fig. 5 is a schematic diagram of a part of a fuel cell control system according to another embodiment of the present disclosure.
Detailed Description
The present invention will be described in further detail with reference to the following detailed description and accompanying drawings. Wherein like elements in different embodiments are numbered with like associated elements. In the following description, numerous details are set forth in order to provide a better understanding of the present application. However, those skilled in the art will readily recognize that some of the features may be omitted or replaced with other elements, materials, methods in different instances. In some instances, certain operations related to the present application have not been shown or described in detail in order to avoid obscuring the core of the present application from excessive description, and it is not necessary for those skilled in the art to describe these operations in detail, so that they may be fully understood from the description in the specification and the general knowledge in the art.
Furthermore, the features, operations, or characteristics described in the specification may be combined in any suitable manner to form various embodiments. Also, the various steps or actions in the method descriptions may be transposed or transposed in order, as will be apparent to one of ordinary skill in the art. Thus, the various sequences in the specification and drawings are for the purpose of describing certain embodiments only and are not intended to imply a required sequence unless otherwise indicated where such sequence must be followed.
The numbering of the components as such, e.g., "first", "second", etc., is used herein only to distinguish the objects as described, and does not have any sequential or technical meaning. The term "connected" and "coupled" when used in this application, unless otherwise indicated, includes both direct and indirect connections (couplings).
In the embodiment of the invention, the control method and the control system of the fuel power battery are provided, and different numbers of the galvanic piles are started according to the power required by the load equipment, so that the energy is saved as few as possible numbers of the galvanic piles are started on the basis of ensuring that the output power of the galvanic piles meets the power required by the load equipment.
The first embodiment is as follows:
referring to fig. 1, the present embodiment provides a control method of a fuel power cell, including:
step 101: acquiring power required by load equipment;
step 102: calculating the number of the electric piles required to be started according to the power required by the load equipment and the output power of each electric pile;
step 103: and starting the corresponding number of the electric piles according to the number of the electric piles required to be started.
In step 101, after the power of the utility power is cut off, the power is supplied to the load device through the backup lithium battery or lead-acid battery, the current and the voltage required by the load device are collected at the moment, the power required by the load device is calculated, and the number of the galvanic piles required to be started is calculated according to the power required by the load device.
The embodiment starts different numbers of the galvanic piles according to the power required by the load equipment, so that the energy is saved by starting the number of the galvanic piles as small as possible on the basis of ensuring that the output power of the galvanic piles meets the power required by the load equipment.
Wherein, calculating the number of the electric piles required to be started according to the power required by the load equipment and the output power of each electric pile comprises the following steps: according to the power required by the load equipment, the number of the galvanic piles which meet the condition that the sum of the output power is larger than the power required by the load equipment is calculated, and the minimum value of the number of the galvanic piles is taken as the number of the galvanic piles required to be started. It can also be understood that: and calculating the minimum value of M, so that the sum of the power output by the M electric piles is larger than the power required by the load equipment, and M is the number of the electric piles required to be started. In other words, the minimum number of electric piles required to satisfy the power of the load device is calculated, for example, the output power of one electric pile is 2400W (W ═ U × I), the output current is I ═ 100A, and U ═ 24V; if the power required by the load equipment is less than 2400W, the user requirements can be met only by starting one galvanic pile; if the load is larger than 2400W, for example 3600W, the required power of the load device can be satisfied by starting at least 2 electric piles, at this time, if three electric piles are started, the sum of the output power of the three electric piles is far larger than 3600W, and the power output by one electric pile is redundant, which causes resource waste.
In another embodiment, the control method further includes: the voltage output by the galvanic pile is converted through the conversion circuit to obtain the adaptive voltage required by the load equipment, and the adaptive voltage is adopted to supply power to the load equipment. The conversion circuit can be a DC-DC conversion circuit, and the voltage output by the galvanic pile is converted by the DC-DC conversion circuit to obtain the voltage adaptive to the load equipment and supply power to the load equipment. In another embodiment, the control method further includes: and a current conversion circuit is adopted to convert the current output by the electric pile so as to output adaptive current to supply to load equipment.
In another embodiment, the control method further includes: judging whether the ratio of the output power of the voltage conversion circuit to the output power of the galvanic pile is greater than a first preset value or not, and if so, determining that the current working state of the galvanic pile meets the preset requirement; if not, the working parameters of the electric pile are adjusted to improve the ratio, the ratio of the output power of the voltage conversion circuit to the output power of the electric pile is larger than 0 and smaller than 1, the ratio is actually the conversion efficiency, and the conversion efficiency cannot exceed 100%. In this embodiment, the first preset value is set to 0.92, the ratio of the output power of the voltage conversion circuit to the output power of the stack indicates the conversion rate and the operating state of the stack, and if the ratio is greater than the first preset value of 0.92, the operating state is considered to be the best state, that is, if (U is equal to U)out×Iout)/(Uin×Iin) And if the current is more than or equal to 0.92, the working state of the galvanic pile meets the preset requirement. U shapeoutFor the voltage (i.e. load voltage) output by the voltage conversion circuit, IoutFor the current (i.e. load current) output by the voltage conversion circuit, IinFor the stack to output current, UinThe voltage is output by the electric pile. If the ratio is less than the first preset value of 0.92, the current working state of the galvanic pile does not meet the preset requirement, and further adjustment of working parameters of the galvanic pile is needed, such as liquid inlet and outlet speeds, electrolyte concentration and the like, so as to improve the ratio.
In another embodiment, if the ratio is smaller than the first preset value of 0.92, further, it is determined whether a difference between the first preset value and the ratio between the output power of the voltage conversion circuit and the output power of the stack is greater than 0.1, that is, the ratio is sufficiently smaller than 0.82, if so, the concentration of the electrolyte is reduced so that the reaction speed is slowed down, so as to increase the ratio to reach 0.92; and if the difference between the ratio and the first preset value is less than 0.1, namely the ratio is between 0.82 and 0.92, adjusting the liquid inlet and outlet speeds of the galvanic pile, and slowing down the flow speed to reduce the contact area of the liquid and the aluminum block so as to improve the ratio.
By detecting and judging the working state of the galvanic pile and the corresponding control strategy in the embodiment, the working state of the galvanic pile is always kept in the optimal working state, and the energy conversion efficiency is improved.
Example two:
referring to fig. 2, the present embodiment provides a control system of a fuel power cell, including: the device comprises an acquisition module 201, a calculation module 202 and a control module 203. The acquisition module 201 is configured to acquire power required by load equipment; the calculating module is used for calculating the number of the electric piles required to be started according to the power required by the load equipment and the output power of each electric pile; the control module 203 is used for starting the corresponding number of the electric piles according to the number of the electric piles required to be started. Therefore, different numbers of galvanic piles are started according to the power required by the load equipment, and the energy is saved as much as possible by starting the number of the galvanic piles as less as possible on the basis of ensuring that the output power of the galvanic piles meets the power required by the load equipment.
Wherein, calculating the number of the electric piles required to be started according to the power required by the load equipment and the output power of each electric pile comprises the following steps: according to the power required by the load equipment, the number of the galvanic piles which meet the condition that the sum of the output power is larger than the power required by the load equipment is calculated, and the minimum value of the number of the galvanic piles is taken as the number of the galvanic piles required to be started. In other words, it can be understood that: and calculating the minimum value of M, so that the sum of the power output by the M electric piles is larger than the power required by the load equipment, and M is the number of the electric piles required to be started.
Further, the control system further includes a conversion module 204, where the conversion module 204 is configured to convert the voltage output by the stack to obtain an adaptive voltage required by the load device, and supply power to the load device by using the adaptive voltage.
The acquisition module 201 is further configured to acquire the adaptive voltage and/or adaptive current output by the conversion module 204; the control system further comprises a judging module 205, wherein the judging module 205 is used for judging whether the ratio of the output power of the converting module 204 to the output power of the galvanic pile is greater than a first preset value, and if so, confirming that the current working state of the galvanic pile meets the preset requirement; if not, adjusting the working parameters of the galvanic pile to improve the ratio. In this embodiment, the first preset value is set to 0.92, the ratio of the output power of the conversion module 204 to the output power of the stack indicates the conversion rate and the working state of the stack, and if the ratio is greater than the first preset value of 0.92, the stack is considered to be in the best working state, that is, if (U is equal to U)out×Iout)/(Uin×Iin) And if the current is more than or equal to 0.92, the working state of the galvanic pile meets the preset requirement. U shapeoutIs the voltage (i.e., load voltage) output by the conversion module 204, IoutIs the current (i.e., load current) output by the conversion module 204, IinFor the stack to output current, UinThe voltage is output by the electric pile. If the ratio is less than the first preset value of 0.92, the current working state of the galvanic pile does not meet the preset requirement, and further adjustment of working parameters of the galvanic pile is needed, such as liquid inlet and outlet speeds, electrolyte concentration and the like, so as to improve the ratio.
In another embodiment, if the ratio is smaller than the first preset value of 0.92, further, it is determined whether a difference between the first preset value and the ratio between the output power of the conversion module 204 and the output power of the stack is greater than 0.1, that is, the ratio is sufficiently smaller than 0.82, if so, the concentration of the electrolyte is reduced to slow the reaction speed, so as to increase the ratio to 0.92; and if the difference between the ratio and the first preset value is less than 0.1, namely the ratio is between 0.82 and 0.92, adjusting the liquid inlet and outlet speeds of the galvanic pile, and slowing down the flow speed to reduce the contact area of the liquid and the aluminum block so as to improve the ratio.
The control system of the embodiment enables the working state of the galvanic pile to be always maintained in the optimal working state through detection and judgment of the working state of the galvanic pile and a corresponding control strategy, and improves the energy conversion efficiency.
Example three:
on the basis of the first embodiment and the second embodiment, the present embodiment provides a control system of a fuel power cell, as shown in fig. 3, in which positive and negative output terminals of a stack are electrically connected to input terminals of a DC-DC power module 33, and output terminals of the DC-DC power module 33 are connected to positive and negative input terminals of a battery box 35 (i.e., a load device) to supply power to the battery box 35. The DC-DC power module 33 is configured to convert the voltage output by the stack to obtain a voltage adapted to the battery box 35, and then supply power to the battery box 35. A first current sensor 31, which is specifically a direct current sensor, is further disposed on an output line of the stack (i.e., a line between the stack and the DC-DC power module 33), the first current sensor 31 is configured to detect a magnitude of current output by the stack, meanwhile, a first voltage sensor 32 is further disposed on positive and negative output ends of the stack, the first voltage sensor 32 is configured to detect an output voltage of the stack, a current sensor is also disposed between the positive and negative output ends of the DC-DC power module 32 and configured to detect a voltage output by the DC-DC power module, and a current sensor is also disposed on one output end of the DC-DC power module 33 and configured to detect a magnitude of current output by the DC-DC power module. In addition, a second current sensor 34 is arranged on a line between the DC-DC power supply module 33 and the battery box 35, and the second current sensor 34 is used for detecting the current input by the load device. As shown in fig. 4, the first current sensor 31, the second current sensor 34, the first voltage sensor 32 and the DC-DC power module 33 are all communicatively connected to a main controller 36, and a sub-controller 37 is also connected to each cell stack, the sub-controller 37 is configured to receive a control signal from the main controller 36 to control the start, stop and modification of operating parameters of the cell stack, such as controlling the cell stack to reduce the concentration of the electrolyte, the speed of the liquid inlet and outlet of the whole cell stack, and the like, and the main controller 36 controls the operation of the whole system according to the voltage and current information collected by the current sensors and the voltage sensors, the power information output by the DC-DC power module 33, and the like. The control method at least comprises the control method for providing the fuel power cell in the embodiment, so that the control system starts different numbers of the galvanic piles according to the power required by the load equipment, and thus, on the basis of ensuring that the output power of the galvanic piles meets the power required by the load equipment, the number of the galvanic piles is started as small as possible, and the energy is saved.
The acquisition module 201 in the second embodiment includes a plurality of current sensors and voltage sensors in this embodiment, and the control module 203 in the second embodiment includes the main controller 36 and the sub-controller 37 in this embodiment.
Specifically, as shown in fig. 5, a magnetic pump is disposed in the electric pile, the magnetic pump is disposed in the liquid inlet and outlet pipelines, the liquid inlet and outlet speeds can be controlled by controlling the opening and closing degree of the magnetic pump, a peristaltic pump, a first fan, a second fan, a gas temperature sensor, a liquid temperature sensor, etc. are further disposed in the electric pile, the gas temperature sensor and the liquid temperature sensor are respectively used for detecting the gas temperature and the liquid temperature when the electric pile works, the magnetic pump, the peristaltic pump, the first fan, the second fan, the gas temperature sensor and the liquid temperature sensor in each electric pile are all connected with a sub-controller 37, the sub-controller 37 is used for receiving the control signal of the main controller 36 to control the start-stop and the working parameters of the magnetic pump, the peristaltic pump, the first fan and the second fan, for example, the sub-controller 37 controls the first fan and the working parameters according to the detected gas temperature and liquid temperature, And starting and stopping the second fan to cool down the electric pile and the like.
The present invention has been described in terms of specific examples, which are provided to aid understanding of the invention and are not intended to be limiting. For a person skilled in the art to which the invention pertains, several simple deductions, modifications or substitutions may be made according to the idea of the invention.
Claims (10)
1. A method of controlling a fuel power cell, comprising:
acquiring power required by load equipment;
calculating the number of the electric piles required to be started according to the power required by the load equipment and the output power of each electric pile;
and starting the corresponding number of the electric piles according to the number of the electric piles required to be started.
2. The method of controlling a fuel power cell according to claim 1, wherein the calculating the number of stacks that need to be started up based on the power required by the load device and the output power of each stack includes:
according to the power required by the load equipment, the number of the galvanic piles which meet the condition that the sum of the output power is larger than the power required by the load equipment is calculated, and the minimum value of the number of the galvanic piles is taken as the number of the galvanic piles required to be started.
3. The control method of a fuel power cell according to claim 1, further comprising: and converting the voltage and/or the current output by the galvanic pile through a conversion circuit to obtain the adaptive voltage and/or the adaptive current required by the load equipment, and supplying power to the load equipment by adopting the adaptive voltage and/or the adaptive current.
4. The control method of a fuel power cell according to claim 3, characterized by further comprising:
calculating the output power of the voltage conversion circuit according to the adaptive voltage and/or adaptive current output by the voltage conversion circuit;
judging whether the ratio of the output power of the voltage conversion circuit to the output power of the galvanic pile is greater than a first preset value or not, and if so, determining that the current working state of the galvanic pile meets the preset requirement; otherwise, adjusting the working parameters of the galvanic pile to improve the ratio;
the ratio of the output power of the voltage conversion circuit to the output power of the galvanic pile is greater than 0 and less than 1.
5. The method of claim 4, wherein said adjusting an operating parameter of said stack to increase said ratio comprises:
judging whether the difference value between the first preset value and the ratio is greater than 0.1, if so, reducing the concentration of the electrolyte to improve the ratio; if not, adjusting the liquid inlet and outlet speeds of the galvanic pile to improve the ratio.
6. A control system for a fuel power cell, comprising:
the acquisition module is used for acquiring the power required by the load equipment;
the calculating module is used for calculating the number of the electric piles required to be started according to the power required by the load equipment and the output power of each electric pile;
and the control module is used for starting the corresponding number of the electric piles according to the number of the electric piles required to be started.
7. The control system for a fuel power cell according to claim 6, wherein said calculating the number of electric stacks that need to be started up based on the power required by the load device and the output power of each electric stack includes:
according to the power required by the load equipment, the number of the galvanic piles which meet the condition that the sum of the output power is larger than the power required by the load equipment is calculated, and the minimum value of the number of the galvanic piles is taken as the number of the galvanic piles required to be started.
8. The control system for a fuel power cell according to claim 6, further comprising:
and the conversion module is used for converting the voltage and/or the current output by the galvanic pile to obtain the adaptive voltage and/or the adaptive current required by the load equipment, and the adaptive voltage and/or the adaptive current are adopted to supply power to the load equipment.
9. The fuel power cell control system of claim 8, wherein the collection module is further configured to collect the adapted voltage and/or adapted current output by the conversion module;
the control system further comprises: the judging module is used for judging whether the ratio of the output power of the converting module to the output power of the galvanic pile is greater than a first preset value or not, and if so, determining that the current working state of the galvanic pile meets the preset requirement; if not, adjusting the working parameters of the galvanic pile to improve the ratio;
the ratio of the output power of the voltage conversion circuit to the output power of the galvanic pile is greater than 0 and less than 1.
10. The fuel cell control system of claim 9, wherein said adjusting an operating parameter of said stack to increase said ratio comprises:
judging whether the difference value of the first preset value and the ratio of the output power of the voltage conversion circuit to the output power of the galvanic pile is larger than 0.1, if so, reducing the concentration of electrolyte to improve the ratio; if not, adjusting the liquid inlet and outlet speeds of the galvanic pile to improve the ratio.
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