CN115249827A - Management and control adjusting system applied to proton membrane fuel cell - Google Patents
Management and control adjusting system applied to proton membrane fuel cell Download PDFInfo
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Abstract
The invention provides a control and regulation system applied to a proton membrane fuel cell, and relates to the technical field of fuel cells; the management and control adjusting system comprises a battery pack dividing module, a supply module, a management and control acquisition module and an adjusting module; the battery pack dividing module is used for dividing the battery pack into units; the supply module comprises a fuel supply unit and an oxygen supply unit, wherein the fuel supply unit is used for supplying fuel to the battery pack; the oxygen supply unit is used for supplying oxygen to the battery pack; the management and control acquisition module comprises a supply acquisition unit, an electric quantity output acquisition unit and a discharge acquisition unit, and the management and control acquisition module can regulate and control the operation state in the battery pack in time according to the actual use condition by detecting the operation state of the battery pack, thereby effectively prolonging the service life of the whole battery pack and improving the energy utilization efficiency, and solving the problems of unreasonable management and control adjustment distribution and large battery loss of the conventional fuel battery.
Description
Technical Field
The invention relates to the technical field of fuel cells, in particular to a control and regulation system applied to a proton membrane fuel cell.
Background
The proton membrane fuel cell is a new type of fuel cell, and its electrolyte is a solid organic membrane, which conducts protons in the case of humidification. The single proton exchange membrane fuel cell mainly comprises a membrane electrode, a sealing ring and a flow field plate with an air guide channel. The membrane electrode is the core part of the proton exchange membrane fuel cell, and a layer of thin membrane-proton exchange membrane is arranged in the middle of the membrane electrode, the membrane does not conduct electrons, is an excellent conductor of hydrogen ions, and not only serves as an electrolyte to provide a channel for the hydrogen ions, but also serves as a diaphragm to separate reaction gases at two poles. The two sides of the membrane are gas electrodes which are composed of carbon paper and a catalyst, the anode is a hydrogen electrode, and the cathode is an oxygen electrode. The flow field plates are typically made of graphite. Proton exchange membrane fuel cells use hydrogen as the fuel. A plurality of battery monomers are connected in series or in parallel according to requirements to form battery packs with different powers.
In the prior art, in the process of using a proton membrane fuel cell stack with a parallel structure, because different functional units are located at different positions and are different corresponding to different external environments, a cell unit located at the core of the stack may face the influence of heat dissipation of surrounding cell units, so that the loss of the cell unit located at the central position may be increased, and meanwhile, the fuel cell stack does not need to always maintain the highest output state for current output, for example: the electric equipment is not always in the highest power utilization, and meanwhile, the electric equipment is provided with a plurality of electric units, and each electric unit is not always kept in an electric utilization starting state; however, the regulation and control mode of the existing regulation and control system is to simultaneously start all functional units of the battery pack, and does not consider the actual use condition and loss condition; the existing fuel cell stack has a single control and regulation mode, and cannot be intelligently adjusted according to actual use conditions.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a management and control adjusting system applied to a proton membrane fuel cell, which can timely regulate and control the running state in the cell pack according to the actual using condition by detecting the running state of the cell pack, thereby effectively prolonging the service life of the whole cell pack and improving the energy utilization efficiency, and solving the problems of unreasonable management and control adjustment distribution and higher cell loss of the existing fuel cell.
In order to achieve the purpose, the invention is realized by the following technical scheme: the invention provides a management and control adjusting system applied to a proton membrane fuel cell, which comprises a battery pack dividing module, a supply module, a management and control acquisition module and an adjusting module;
the battery pack dividing module is used for dividing the battery pack into units;
the supply module comprises a fuel supply unit and an oxygen supply unit, wherein the fuel supply unit is used for supplying fuel to the battery pack; the oxygen supply unit is used for supplying oxygen to the battery pack;
the management and control acquisition module comprises a supply acquisition unit, an electric quantity output acquisition unit and a discharge acquisition unit, and the supply acquisition unit is used for acquiring supply data of the supply module; the electric quantity output acquisition unit is used for acquiring electric quantity output data of the battery pack; the discharge acquisition unit is used for acquiring discharge data of the battery pack;
and the adjusting module performs comprehensive processing based on the data acquired by the control acquisition module and outputs an adjusting result.
Further, the battery pack partitioning module includes an assembly setting unit configured with an assembly setting policy including: firstly, acquiring single output voltage and single output current of a single battery; then acquiring the highest service voltage and the highest service current of the electric equipment;
substituting the single output voltage and the highest using voltage into a series calculation formula to calculate the series quantity; the series calculation formula is configured to:
(ii) a Wherein Scl is the number of series connections, umax is the highest service voltage, usc is the single output voltage, and λ is the voltage output conversion coefficient;
substituting the single output current and the highest using current into a parallel calculation formula to calculate the parallel number; the parallel calculation formula is configured as:
(ii) a Wherein Sbl is the parallel quantity, imax is the highest current, isc is the single output current, and alpha is the current output conversion coefficient;
then the single batteries are connected in series according to the series number to form an independent power supply unit; setting independent power supply units with corresponding quantity according to the parallel quantity; and the independent power supply units with the parallel number are connected in parallel according to a rectangular structure to form the battery pack.
Further, the battery pack partitioning module further includes a partitioning unit configured with a partitioning policy, the partitioning policy including: dividing the battery pack into a peripheral component and a middle component, wherein the peripheral component is a plurality of independent power supply units positioned on the outer ring of a rectangular structure in the battery pack, and the middle component is a plurality of independent power supply units positioned on the inner ring of the rectangular structure in the battery pack;
wherein, a plurality of independent power supply units in the middle assembly are respectively provided with an independent on-off control switch.
Further, the fuel supply unit comprises a hydrogen storage device and a fuel output pressure reducing valve, the oxygen supply unit comprises an air pump, an oxygen storage device and an oxygen output pressure reducing valve, the fuel output pressure reducing valve is arranged at one end of an output port of the hydrogen storage device, and an output end of the fuel output pressure reducing valve is connected with a fuel inlet of the battery pack; the air pump is connected with an oxygen inlet of the battery pack; the oxygen output pressure reducing valve is arranged at one end of an output port of the oxygen storage device, and an output end of the oxygen output pressure reducing valve is connected with an oxygen inlet of the battery pack.
Further, the supply collection unit comprises a fuel output flow meter, an oxygen output flow assembly and an oxygen concentration sensor, wherein the fuel output flow meter is used for acquiring the fuel flow output by the fuel output reducing valve; the oxygen output flow component comprises an oxygen storage output flow meter and an air output flow meter, and the oxygen storage output flow meter is used for acquiring the oxygen flow output by the oxygen output reducing valve; the air output flow meter is used for acquiring the air flow output by the air pump; the oxygen concentration sensor is used for acquiring the oxygen concentration of air output by the air pump;
the electric quantity output acquisition unit comprises a peripheral output acquisition subunit and a middle output acquisition subunit, and the peripheral output acquisition subunit is used for acquiring the output electric quantity of a plurality of independent power supply units of the peripheral component; the intermediate output acquisition subunit is used for acquiring the output electric quantity of a plurality of independent power supply units of the intermediate assembly;
the discharge acquisition unit comprises a plurality of groups of water flow meters, and the water flow meters are used for acquiring discharge water flow of the independent power supply units.
Further, the adjustment module includes a provisioning calculation unit configured with a unit provisioning calculation strategy, the unit provisioning calculation strategy including: firstly, adding the output electric quantity of a plurality of independent power supply units of the peripheral component and the output electric quantity of a plurality of independent power supply units of the middle component to obtain total output electric quantity;
the output total electric quantity is divided by the single output current to obtain a unit supply reference value, and the integral number of the unit supply reference value is added by one to obtain a unit supply minimum value.
Further, the adjusting module further comprises a basic output adjusting unit configured with a basic output adjusting strategy comprising: in the output process of the same output total electric quantity, acquiring the output electric quantity of a plurality of independent power supply units of the primary peripheral component and the output electric quantity of a plurality of independent power supply units of the intermediate component at first intervals;
substituting the acquired output electric quantity of the plurality of independent power supply units of the peripheral component with the first quantity, the acquired output electric quantity of the plurality of independent power supply units of the middle component, the acquired output electric quantity of the plurality of independent power supply units of the peripheral component and the acquired output electric quantity of the plurality of independent power supply units of the middle component into an output fluctuation formula to obtain an output fluctuation index; the output fluctuation formula is configured to:
substituting the output fluctuation index into a minimum output supplement formula to obtain a minimum output supplement value, and setting integral digits of the minimum output supplement value as the basic supplement quantity of the output unit; the minimum output supplemental formula is configured to:
(ii) a Wherein Pzb is the minimum output supplement value, and β is the minimum output conversion coefficient;
adding the output unit basic supplement quantity to the unit supply minimum value to obtain a unit supply basic quantity;
when the number of the unit supply bases is less than or equal to the number of the independent power supply units of the peripheral component, the independent power supply units of the peripheral component are adopted for supplying power; when the number of the unit supply bases is larger than the number of the independent power supply units of the peripheral component, the difference value between the number of the unit supply bases and the number of the independent power supply units of the peripheral component is obtained, the number is set as the middle supplement number, and the independent power supply units of the peripheral component and the independent power supply units of the middle component of the middle supplement number are adopted for supplying power.
Further, the adjusting module further comprises a reference output adjusting unit configured with a reference output adjusting strategy comprising: substituting the fuel flow, the oxygen flow, the air flow and the air oxygen concentration into an input reference formula to obtain an input reference value; the input reference formula is configured to:
(ii) a Wherein, psrc is an input reference value, lrl is a fuel flow, lyq is an oxygen flow, lkq is an air flow, nkq is an air oxygen concentration;
accumulating the flow rates of the discharged water obtained by the water flow meters to obtain the total amount of the discharged water;
substituting the input reference value, the output total electric quantity and the total amount of the discharged water into an output consumption formula to obtain an output consumption value; the output consumption formula is configured to:
(ii) a Wherein Pxh is an output consumption value, a1 is an input conversion coefficient, wsz is an output total electric quantity, a2 is a total electric quantity conversion coefficient, lps is a total amount of discharged water, and a3 is a discharge conversion coefficient;
substituting the output consumption value into a consumption supplement formula to obtain a consumption supplement value, and setting an integer of the consumption supplement value as a consumption supplement quantity; the consumption replenishment formula is configured to:
(ii) a Wherein Pxb is a consumption supplement value, and gamma is a consumption supplement conversion ratio;
adding the consumed supplement quantity and the unit supply basic quantity to obtain a unit supply supplement quantity;
when the unit supply supplement quantity is less than or equal to the quantity of the independent power supply units of the peripheral component, the independent power supply units of the peripheral component are adopted for supplying power; when the unit supply supplement number is larger than the number of the independent power supply units of the peripheral component, the difference value between the unit supply supplement number and the number of the independent power supply units of the peripheral component is obtained, the intermediate consumption supplement number is set, and the independent power supply units of the peripheral component and the independent power supply units of the intermediate component consuming the supplement number in the middle are adopted for supplying power.
The invention has the beneficial effects that: the battery pack can be divided into units through the battery pack dividing module; the battery pack is divided, so that different units of the battery pack can be independently controlled in a follow-up manner;
the invention can supply fuel and oxygen to the battery pack through the supply module; the supply data of the supply module can be acquired by a supply acquisition unit of the control acquisition module; the electric quantity output data of the battery pack can be acquired through the electric quantity output acquisition unit; the discharge data of the battery pack can be collected through the discharge collection unit; finally, the adjusting module can perform comprehensive processing based on the data acquired by the control acquisition module and output an adjusting result; this design can carry out independent control to the group battery after the division according to the height of actual output electric quantity to synthesize input and output data, the problem that the electric energy supply that causes when can reduce independent control as far as is not enough has ensured that the electric energy supply is stable, has improved the rationality that the distribution was adjusted in the management and control, and then helps improving the life of group battery.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
FIG. 1 is a schematic block diagram of a regulatory system of the present invention;
fig. 2 is a schematic block diagram of a battery pack partitioning module of the present invention;
FIG. 3 is a functional block diagram of the conditioning module of the present invention;
fig. 4 is a schematic diagram of the division of the battery pack of the present invention.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further explained by combining the specific embodiments.
Referring to fig. 1, the present invention provides a management and control system for a proton membrane fuel cell, which can timely regulate and control the operation state of a battery pack according to the actual usage status by detecting the operation state of the battery pack, so as to effectively improve the overall service life and energy utilization efficiency of the battery pack, and solve the problems of unreasonable management and control and adjustment allocation and large battery loss of the conventional fuel cell.
The management and control adjusting system comprises a battery pack dividing module, a supply module, a management and control acquisition module and an adjusting module; the battery pack dividing module is used for dividing the battery pack into units; the supply module comprises a fuel supply unit and an oxygen supply unit, wherein the fuel supply unit is used for supplying fuel to the battery pack; the oxygen supply unit is used for supplying oxygen to the battery pack; the management and control acquisition module comprises a supply acquisition unit, an electric quantity output acquisition unit and a discharge acquisition unit, and the supply acquisition unit is used for acquiring supply data of the supply module; the electric quantity output acquisition unit is used for acquiring electric quantity output data of the battery pack; the discharge acquisition unit is used for acquiring discharge data of the battery pack; and the adjusting module performs comprehensive processing on the basis of the data acquired by the control acquisition module and outputs an adjusting result.
Example one
In the first embodiment, the independent power supply unit which needs to be started is supplemented according to the variation condition of the output electric quantity of the battery pack, so that the rationality of starting and distributing the independent power supply unit of the battery pack is improved while the basic power supply stability is ensured.
Referring to fig. 2 and 3, the battery partitioning module includes an assembly setting unit configured with an assembly setting strategy, and the assembly setting strategy includes the following steps:
step S111, firstly, acquiring single output voltage and single output current of a single battery; then acquiring the highest service voltage and the highest service current of the electric equipment; the highest use voltage of the electric equipment is used for requiring the serial connection number of the single batteries; the highest using current of the electric equipment is used for requiring the parallel connection number of the batteries after being connected in series; the actual use condition is as follows: in order to meet the rated operating voltage of the load, the single batteries must be connected in series to form a single battery pack unit. Due to the limitations of materials (such as proton exchange membranes) and process levels, the output current density of the single battery is about 300 to 600ma/cm, and therefore, the output current capability of the fuel battery can be improved, and only a plurality of battery pack units of monomers connected in series can be connected in parallel to form a fuel battery stack with larger output capability.
Step S112, substituting the single output voltage and the highest use voltage into a series calculation formula to calculate the series quantity; the tandem calculation formula is configured as:
(ii) a Wherein Scl is the number of series connections, umax is the highest service voltage, usc is the single output voltage, and λ is the voltage output conversion coefficient; the value range of lambda is between 0.9 and 1.1;
in the step S113, the process is executed,substituting the single output current and the highest using current into a parallel calculation formula to calculate the parallel number; the parallel calculation formula is configured as:
(ii) a Wherein Sbl is the parallel quantity, imax is the highest current, isc is the single output current, and alpha is the current output conversion coefficient; the value range of alpha is between 0.9 and 1.1;
step S114, connecting the single batteries in series according to the series number to form an independent power supply unit; setting independent power supply units with corresponding quantity according to the parallel quantity; and the independent power supply units with the parallel number are connected in parallel according to a rectangular structure to form the battery pack.
The battery pack dividing module further comprises a dividing unit, the dividing unit is configured with a dividing strategy, and the dividing strategy comprises the following steps:
as shown in fig. 4, in step S121, the battery pack is divided into a peripheral component and a middle component, where the peripheral component is a plurality of independent power supply units located at an outer ring of the rectangular structure in the battery pack, and the middle component is a plurality of independent power supply units located at an inner ring of the rectangular structure in the battery pack; wherein, a plurality of independent power supply units in the middle assembly are respectively provided with an independent on-off control switch. A plurality of independent power supply units of the middle assembly can be independently added according to actual use requirements, and the adding process is controlled through an independent on-off control switch.
The electric quantity output acquisition unit comprises a peripheral output acquisition subunit and a middle output acquisition subunit, and the peripheral output acquisition subunit is used for acquiring the output electric quantity of a plurality of independent power supply units of the peripheral component; the intermediate output acquisition subunit is used for acquiring the output electric quantity of a plurality of independent power supply units of the intermediate assembly; the peripheral output acquisition subunit and the middle output acquisition subunit adopt electricity meters.
The adjusting module comprises a supply calculating unit, the supply calculating unit is configured with a unit supply calculating strategy, and the unit supply calculating strategy comprises the following steps:
step S211, firstly, adding the output electric quantity of a plurality of independent power supply units of the peripheral component and the output electric quantity of a plurality of independent power supply units of the middle component to obtain output total electric quantity;
in step S212, the output total power is divided by the single output current to obtain a unit supply reference value, and the integer number of the unit supply reference value is added by one to obtain a unit supply minimum value. Because the number of the independent power supply units is positive, an integer is required to be adopted for correspondence in the process of selecting the solved numerical value.
The regulating module further comprises a basic output regulating unit, the basic output regulating unit is configured with a basic output regulating strategy, and the basic output regulating strategy comprises the following steps:
step S221, in the process of outputting the same total output electric quantity, acquiring the output electric quantities of a plurality of independent power supply units of the peripheral component and the output electric quantities of a plurality of independent power supply units of the intermediate component at first intervals; the same output total electric quantity is adopted for data detection, so that stable reference relation of the obtained data can be ensured, and the effectiveness of data processing is guaranteed;
step S222, substituting the acquired output electric quantity of the plurality of independent power supply units of the first number of peripheral components, the acquired output electric quantity of the plurality of independent power supply units of the middle component, the acquired number of the plurality of independent power supply units of the peripheral components and the acquired number of the plurality of independent power supply units of the middle component into an output fluctuation formula to obtain an output fluctuation index; the output fluctuation formula is configured as:
step S223, substituting the output fluctuation index into the minimum output supplement formula to obtain the minimum output supplementCharging, namely setting the integer digit of the minimum output charging value as the basic charging quantity of the output unit; the minimum output supplement formula is configured as:
(ii) a Wherein Pzb is the minimum output supplement value, and β is the minimum output conversion coefficient; beta is between 0 and 2;
step S224, adding the minimum value of the unit supply to the basic supplement quantity of the output unit to obtain a unit supply basic quantity;
step S225, when the basic number of unit supply is less than or equal to the number of the independent power supply units of the peripheral component, the independent power supply units of the peripheral component are adopted for supplying power; when the number of the unit supply bases is larger than the number of the independent power supply units of the peripheral component, the difference value between the number of the unit supply bases and the number of the independent power supply units of the peripheral component is obtained, the number is set as the middle supplement number, and the independent power supply units of the peripheral component and the independent power supply units of the middle component of the middle supplement number are adopted for supplying power. When a plurality of independent power supply units of the intermediate assembly are controlled, the independent on-off control switch is adopted for controlling.
Example two
Referring to fig. 1 to fig. 3, in the second embodiment, loss factors in the fuel conversion process are added on the basis of the first embodiment, so that the independent power supply unit which needs to be turned on can be further supplemented, and the power supply stability is further ensured.
The fuel supply unit comprises a hydrogen storage device and a fuel output pressure reducing valve, the oxygen supply unit comprises an air pump, an oxygen storage device and an oxygen output pressure reducing valve, the fuel output pressure reducing valve is arranged at one end of an output port of the hydrogen storage device, and the output end of the fuel output pressure reducing valve is connected with a fuel inlet of the battery pack; the air pump is connected with an oxygen inlet of the battery pack; the oxygen output pressure reducing valve is arranged at one end of the output port of the oxygen storage device, and the output end of the oxygen output pressure reducing valve is connected with the oxygen inlet of the battery pack. In a specific using process, the oxygen storage device and the oxygen output pressure reducing valve are a group of independent oxygen supply units, the air pump is a group of independent oxygen supply units, and the two groups of independent oxygen supply units can be simultaneously or independently started.
The supply acquisition unit comprises a fuel output flowmeter, an oxygen output flow component and an oxygen concentration sensor, wherein the fuel output flowmeter is used for acquiring the fuel flow output by the fuel output reducing valve; the oxygen output flow component comprises an oxygen storage output flow meter and an air output flow meter, and the oxygen storage output flow meter is used for acquiring the oxygen flow output by the oxygen output reducing valve; the air output flow meter is used for acquiring the air flow output by the air pump; the oxygen concentration sensor is used for acquiring the oxygen concentration of air output by the air pump; the discharge acquisition unit comprises a plurality of groups of water flow meters, and the water flow meters are used for acquiring discharge water flow of the independent power supply units.
The regulation module further comprises a reference output regulation unit configured with a reference output regulation strategy comprising the steps of:
step S231, substituting the fuel flow, the oxygen flow, the air flow and the air oxygen concentration into an input reference formula to obtain an input reference value; the input reference formula is configured as:
(ii) a Wherein, psrc is an input reference value, lrl is a fuel flow, lyq is an oxygen flow, lkq is an air flow, nkq is an air oxygen concentration; the meaning of the input reference value expression is: the quantity of input fuel and oxygen, that is, the quantity of input quantity, usually the quantity of electricity converted by unit quantity of input quantity can be obtained according to the existing conversion relation between fuel and electricity;
step S232, accumulating the flow rates of the discharged water obtained by the water flow meters to obtain the total amount of the discharged water; the discharge amount of a normal unit and the input amount of the unit have a certain conversion relation;
step S233, substituting the input reference value, the output total electric quantity and the total quantity of the discharged water into an output consumption formula to obtain an output consumption value; the output consumption formula is configured as:
(ii) a Wherein Pxh is an output consumption value, a1 is an input conversion coefficient, wsz is an output total electric quantity, a2 is a total electric quantity conversion coefficient, lps is a total amount of discharged water, and a3 is a discharge conversion coefficient; values of a1, a2 and a3 are all larger than zero, and the settings of a1, a2 and a3 can enable the input reference value, the output total electric quantity and the total quantity of the discharged water to be correspondingly converted;
step S234, substituting the output consumption value into a consumption supplement formula to obtain a consumption supplement value, and setting an integer of the consumption supplement value as a consumption supplement quantity; the consumption replenishment formula is configured to:
(ii) a Wherein Pxb is a consumption supplement value, and gamma is a consumption supplement conversion ratio; the value of gamma is between 0 and 2;
step S235, adding the consumption supplement quantity and the unit supply basic quantity to obtain a unit supply supplement quantity;
step S236, when the supplementary number of the unit supplies is less than or equal to the number of the independent power supply units of the peripheral component, the independent power supply units of the peripheral component are adopted for supplying power; when the unit supply supplement number is larger than the number of the independent power supply units of the peripheral component, the difference value between the unit supply supplement number and the number of the independent power supply units of the peripheral component is obtained and set as the intermediate consumption supplement number, and the independent power supply units of the peripheral component and the independent power supply units of the intermediate component consuming the supplement number are adopted for supplying power; when a plurality of independent power supply units of the intermediate assembly are controlled, the independent on-off control switch is adopted for controlling.
The operation principle of the invention is as follows: the battery pack can be divided into units through the battery pack dividing module; the fuel and the oxygen can be supplied to the battery pack through the supply module; then, the supply acquisition unit of the management and control acquisition module can acquire the supply data of the supply module, the electric quantity output acquisition unit can acquire the electric quantity output data of the battery pack, and the discharge acquisition unit can acquire the discharge data of the battery pack; finally, the adjusting module can perform comprehensive processing based on the data acquired by the control acquisition module and output an adjusting result; therefore, the divided battery packs can be independently controlled according to the adjusting result, and the rationality of management and control adjusting distribution is improved.
In the embodiments of the present application, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to the related descriptions of other embodiments.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media having computer-usable program code embodied in the medium. The storage medium may be implemented by any type of volatile or nonvolatile storage device or combination thereof, such as a Static Random Access Memory (SRAM), an Electrically Erasable Programmable Read-Only Memory (EEPROM), an Erasable Programmable Read-Only Memory (EPROM), a Programmable Read-Only Memory (PROM), a Read-Only Memory (ROM), a magnetic Memory, a flash Memory, a magnetic disk, or an optical disk. These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. The above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units is only one logical division, and there may be other divisions when actually implemented, and for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection of devices or units through some communication interfaces, and may be in an electrical, mechanical or other form.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that the following descriptions are only illustrative and not restrictive, and that the scope of the present invention is not limited to the above embodiments: any person skilled in the art can modify or easily conceive the technical solutions described in the foregoing embodiments or equivalent substitutes for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the embodiments of the present invention, and they should be construed as being included therein. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (8)
1. The control and regulation system is applied to the proton membrane fuel cell and is characterized by comprising a battery pack dividing module, a supply module, a control acquisition module and a regulation module;
the battery pack dividing module is used for dividing the battery pack into units;
the supply module comprises a fuel supply unit and an oxygen supply unit, wherein the fuel supply unit is used for supplying fuel to the battery pack; the oxygen supply unit is used for supplying oxygen to the battery pack;
the management and control acquisition module comprises a supply acquisition unit, an electric quantity output acquisition unit and a discharge acquisition unit, and the supply acquisition unit is used for acquiring supply data of the supply module; the electric quantity output acquisition unit is used for acquiring electric quantity output data of the battery pack; the discharge acquisition unit is used for acquiring discharge data of the battery pack;
the adjusting module carries out comprehensive processing based on the data acquired by the control acquisition module and outputs an adjusting result.
2. The management and control system applied to the proton membrane fuel cell according to claim 1, wherein the cell group division module comprises an assembly setting unit configured with an assembly setting strategy, and the assembly setting strategy comprises: firstly, acquiring single output voltage and single output current of a single battery; then acquiring the highest service voltage and the highest service current of the electric equipment;
substituting the single output voltage and the highest using voltage into a series calculation formula to calculate the series quantity; the series calculation formula is configured to:
(ii) a Wherein Scl is the number of series connections, umax is the highest use voltage, usc is single output voltage, and lambda is a voltage output conversion coefficient;
substituting the single output current and the highest using current into a parallel calculation formula to calculate the parallel number; the parallel calculation formula is configured as:
(ii) a Wherein Sbl is the parallel quantity, imax is the highest current, isc is the single output current, and alpha is the current output conversion coefficient;
then the single batteries are connected in series according to the series number to form an independent power supply unit; setting independent power supply units with corresponding quantity according to the parallel quantity; and the independent power supply units with the parallel number are connected in parallel according to a rectangular structure to form the battery pack.
3. The management and control system applied to the proton membrane fuel cell according to claim 2, wherein the battery pack partitioning module further comprises a partitioning unit configured with partitioning strategies, and the partitioning strategies comprise: dividing the battery pack into a peripheral component and a middle component, wherein the peripheral component is a plurality of independent power supply units positioned on the outer ring of a rectangular structure in the battery pack, and the middle component is a plurality of independent power supply units positioned on the inner ring of the rectangular structure in the battery pack;
wherein, a plurality of independent power supply units in the middle assembly are respectively provided with an independent on-off control switch.
4. The management and control system applied to the proton membrane fuel cell as claimed in claim 3, wherein the fuel supply unit comprises a hydrogen storage device and a fuel output pressure reducing valve, the oxygen supply unit comprises an air pump, an oxygen storage device and an oxygen output pressure reducing valve, the fuel output pressure reducing valve is arranged at one end of an output port of the hydrogen storage device, and an output end of the fuel output pressure reducing valve is connected with a fuel inlet of the cell stack; the air pump is connected with an oxygen inlet of the battery pack; the oxygen output pressure reducing valve is arranged at one end of an output port of the oxygen storage device, and an output end of the oxygen output pressure reducing valve is connected with an oxygen inlet of the battery pack.
5. The management and control system applied to the proton membrane fuel cell of claim 4, wherein the supply collection unit comprises a fuel output flow meter, an oxygen output flow assembly and an oxygen concentration sensor, and the fuel output flow meter is used for acquiring the fuel flow output by the fuel output pressure reducing valve; the oxygen output flow component comprises an oxygen storage output flow meter and an air output flow meter, and the oxygen storage output flow meter is used for acquiring the oxygen flow output by the oxygen output reducing valve; the air output flow meter is used for acquiring the air flow output by the air pump; the oxygen concentration sensor is used for acquiring the oxygen concentration of air output by the air pump;
the electric quantity output acquisition unit comprises a peripheral output acquisition subunit and a middle output acquisition subunit, and the peripheral output acquisition subunit is used for acquiring the output electric quantity of a plurality of independent power supply units of the peripheral component; the intermediate output acquisition subunit is used for acquiring the output electric quantity of a plurality of independent power supply units of the intermediate assembly;
the discharge acquisition unit comprises a plurality of groups of water flow meters, and the water flow meters are used for acquiring discharge water flow of the independent power supply units.
6. The management and control regulation system applied to proton membrane fuel cells according to claim 5, characterized in that the regulation module comprises a supply calculation unit configured with a unit supply calculation strategy comprising: firstly, adding the output electric quantity of a plurality of independent power supply units of the peripheral component and the output electric quantity of a plurality of independent power supply units of the middle component to obtain total output electric quantity;
the output total electric quantity is divided by the single output current to obtain a unit supply reference value, and the integral number of the unit supply reference value is added by one to obtain a unit supply minimum value.
7. The regulating and controlling system applied to proton membrane fuel cells in accordance with claim 6, wherein said regulating module further comprises a basic output regulating unit configured with a basic output regulating strategy comprising: in the output process of the same output total electric quantity, acquiring the output electric quantity of a plurality of independent power supply units of the primary peripheral component and the output electric quantity of a plurality of independent power supply units of the intermediate component at first intervals;
substituting the acquired output electric quantity of the plurality of independent power supply units of the peripheral component with the first quantity, the acquired output electric quantity of the plurality of independent power supply units of the middle component, the acquired output electric quantity of the plurality of independent power supply units of the peripheral component and the acquired output electric quantity of the plurality of independent power supply units of the middle component into an output fluctuation formula to obtain an output fluctuation index; the output fluctuation formula is configured to:
substituting the output fluctuation index into a minimum output supplement formula to obtain a minimum output supplement value, and setting integral digits of the minimum output supplement value as the basic supplement quantity of the output unit; the minimum output supplemental formula is configured to:
(ii) a Wherein Pzb is the minimum output supplement value, and β is the minimum output conversion coefficient;
adding the basic supplement quantity of the output unit to the minimum supply quantity of the unit to obtain a supply basic quantity of the unit;
when the number of the unit supply bases is less than or equal to the number of the independent power supply units of the peripheral component, the independent power supply units of the peripheral component are adopted for supplying power; when the number of the unit supply bases is larger than the number of the independent power supply units of the peripheral component, the difference value between the number of the unit supply bases and the number of the independent power supply units of the peripheral component is obtained, the number is set as the middle supplement number, and the independent power supply units of the peripheral component and the independent power supply units of the middle component of the middle supplement number are adopted for supplying power.
8. The regulating and controlling system applied to proton membrane fuel cells of claim 7, wherein the regulating module further comprises a reference output regulating unit configured with a reference output regulating strategy comprising: substituting fuel flow, oxygen flow, air flow, and air oxygen concentration into the inputSolving an input reference value in a reference formula; the input reference formula is configured to:
(ii) a Wherein, psrc is an input reference value, lrl is a fuel flow, lyq is an oxygen flow, lkq is an air flow, nkq is an air oxygen concentration;
accumulating the flow rates of the discharged water obtained by the water flow meters to obtain the total amount of the discharged water;
substituting the input reference value, the output total electric quantity and the total amount of the discharged water into an output consumption formula to obtain an output consumption value; the output consumption formula is configured to:
(ii) a Wherein Pxh is an output consumption value, a1 is an input conversion coefficient, wsz is an output total electric quantity, a2 is a total electric quantity conversion coefficient, lps is a total amount of discharged water, and a3 is a discharge conversion coefficient;
substituting the output consumption value into a consumption supplement formula to obtain a consumption supplement value, and setting an integer of the consumption supplement value as a consumption supplement quantity; the consumption replenishment formula is configured to:
(ii) a Wherein Pxb is a consumption supplement value, and gamma is a consumption supplement conversion ratio;
adding the consumed supplement quantity and the unit supply basic quantity to obtain a unit supply supplement quantity;
when the unit supply supplement quantity is less than or equal to the quantity of the independent power supply units of the peripheral component, the independent power supply units of the peripheral component are adopted for supplying power; when the unit supply supplement number is larger than the number of the independent power supply units of the peripheral component, the difference value between the unit supply supplement number and the number of the independent power supply units of the peripheral component is obtained, the intermediate consumption supplement number is set, and the independent power supply units of the peripheral component and the independent power supply units of the intermediate component consuming the supplement number in the middle are adopted for supplying power.
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| CN101191822A (en) * | 2006-12-02 | 2008-06-04 | 比亚迪股份有限公司 | Fuel cell voltage monitoring system and its method |
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| CN114709896A (en) * | 2022-04-28 | 2022-07-05 | 西安交通大学 | Battery charging and discharging system based on reconstruction and charging and discharging control method |
| CN114784334A (en) * | 2022-04-06 | 2022-07-22 | 北京亿华通科技股份有限公司 | Modularized testing device for fuel cell |
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| CN101191822A (en) * | 2006-12-02 | 2008-06-04 | 比亚迪股份有限公司 | Fuel cell voltage monitoring system and its method |
| US20200274371A1 (en) * | 2019-02-22 | 2020-08-27 | Aurora Flight Sciences Corporation | Battery Management System |
| CN113783245A (en) * | 2021-08-09 | 2021-12-10 | 北京国电通网络技术有限公司 | Battery management method and system |
| CN114784334A (en) * | 2022-04-06 | 2022-07-22 | 北京亿华通科技股份有限公司 | Modularized testing device for fuel cell |
| CN114709896A (en) * | 2022-04-28 | 2022-07-05 | 西安交通大学 | Battery charging and discharging system based on reconstruction and charging and discharging control method |
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