CN116031970B - Chemical power output control method, system, equipment and storage medium - Google Patents
Chemical power output control method, system, equipment and storage medium Download PDFInfo
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Abstract
The invention provides a chemical power supply output control method, a system, equipment and a storage medium, wherein the method comprises the steps of obtaining first output information, second output information and states of a chemical power supply, wherein the chemical power supply has a plurality of states, and a corresponding characteristic curve is preset in each state; acquiring a class variable and a class variable according to the first output information and the second output information respectively; changing the control variable of the output control module to further change the output of the chemical power supply, so that the corresponding relation between the first class variable and the second class variable accords with the characteristic curve corresponding to the current state. The invention can output electric energy according to the design characteristics of the chemical power supply, realizes millisecond response time through the output control circuit, is also suitable for chemical power supplies in different states, adopts different characteristic curves in different states, and improves the stability and service life of the chemical power supply.
Description
Technical Field
The present invention relates to the field of battery technologies, and in particular, to a method, a system, an apparatus, and a storage medium for controlling chemical power output.
Background
Typical chemical power supply power system architectures include a chemical power supply, an output control circuit, and a reaction environment supply assembly for the chemical power supply, where the reaction environment supply assembly for the chemical power supply generally has a low response speed, and in a dynamic working condition, the reaction environment of the chemical power supply needs millisecond response time to reach an ideal state, which is difficult to achieve in the existing scheme.
The existing output electric energy control strategy adopts constant current, constant voltage, constant power and other control strategies, such as the reaction environment supply assembly for controlling the chemical power supply through an upper computer to carry out input adjustment on the chemical power supply, and the output control circuit adjusts the output of the chemical power supply in real time, so that the output of the chemical power supply keeps maintaining the current or voltage or power at a certain constant value for output.
The output power control process needs to wait for the response time of the reaction environment supply component of the chemical power supply, has lower response speed, and the actual output of the chemical power supply can deviate from the original set volt-ampere characteristic curve obviously under the dynamic load and unload working condition, so that the fluctuation of the output performance of the chemical power supply is easy to cause, and the operation stability and the service life of the chemical power supply are influenced. And, can not adjust the output according to the operating condition of chemical power supply, influence the output performance of chemical power supply.
Disclosure of Invention
The invention provides a chemical power supply output control method, a system, equipment and a storage medium, which are used for solving the defects that the response speed is low, the output performance fluctuates and the state of a chemical power supply cannot be matched with the output control process in the prior art, and realizing the output control according to the state of the chemical power supply.
In a first aspect, the present invention provides a chemical power output control method, including:
acquiring first output information, second output information and states of a chemical power supply, wherein the chemical power supply has a plurality of states, and a corresponding characteristic curve is preset in each state of the chemical power supply;
Acquiring a class variable and a class variable according to the first output information and the second output information respectively;
changing the control variable of the output control module to further change the output of the chemical power supply, so that the corresponding relation between the first class variable and the second class variable accords with the characteristic curve corresponding to the current state.
According to the chemical power supply output control method provided by the invention, the control variable of the output control module is changed so as to change the output of the chemical power supply, so that the corresponding relation between the first class variable and the second class variable accords with the characteristic curve corresponding to the current state, and the method comprises the following steps:
under the condition that the state parameters of the chemical power supply are unchanged, the control variables are controlled according to the deviation information of the characteristic curves corresponding to the first-class variable and the second-class variable and the current state, so that the first-class variable and the second-class variable tend to be on the characteristic curve corresponding to the current state.
According to the chemical power supply output control method provided by the invention, a negative feedback control method or a positive feedback control method is adopted to control the control variable.
According to the chemical power supply output control method provided by the invention, the state is a state which is matched with different state parameters of the chemical power supply.
According to the chemical power supply output control method provided by the invention, the variables are chemical power supply output current or chemical power supply output current density or variables calculated by the chemical power supply output current or chemical power supply output current density;
the second-class variable is chemical power supply output voltage, chemical power supply output power or chemical power supply internal resistance compensation output voltage or a variable calculated by the chemical power supply output voltage, the chemical power supply output power or the chemical power supply internal resistance compensation output voltage.
According to the chemical power supply output control method provided by the invention, the control variable of the output control module is the chemical power supply output target current, the chemical power supply output target voltage, the chemical power supply output target power, the equivalent output impedance value, the internal resistance compensation output voltage, the internal resistance compensation output power, the chemical power supply output thermal power or the control circuit electronic device switch duty ratio, or other control state parameters capable of changing the chemical power supply output current, voltage or electric power.
According to the chemical power supply output control method provided by the invention, the chemical power supply is a battery, a storage battery or a fuel cell.
In a second aspect, the present invention also provides a chemical power output control system, comprising:
the information acquisition unit is used for acquiring first output information, second output information and states of the chemical power supply, wherein the chemical power supply has a plurality of states, and a corresponding characteristic curve is preset in each state of the chemical power supply;
the variable obtaining unit is used for obtaining a class variable and a class variable according to the first output information and the second output information respectively;
and the output control unit is used for changing the control variable of the output control module so as to change the output of the chemical power supply, so that the corresponding relation between the first class variable and the second class variable accords with the characteristic curve corresponding to the current state.
The invention also provides an electronic device, which comprises a memory, a processor and a computer program stored in the memory and capable of running on the processor, wherein the processor realizes the chemical power supply output control method according to any one of the above when executing the program.
The present invention also provides a non-transitory computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements a chemical power output control method as described in any one of the above.
According to the chemical power supply output control method, the system, the equipment and the storage medium, the first output information, the second output information and the state of the chemical power supply are obtained, the first variable and the second variable are obtained, the corresponding relation between the first variable and the second variable accords with the characteristic curve corresponding to the current state by changing the control variable, so that the output measurement data of the chemical power supply trend on the characteristic curve, electric energy output can be carried out according to the design characteristic of the chemical power supply, millisecond response time is realized through the output control circuit, the method is also suitable for chemical power supplies in different states, and different characteristic curves are adopted in different states, so that the stability and the service life of the chemical power supply are improved.
Additional features and advantages of the application will be set forth in the description which follows, and in part will be apparent from the description, or may be learned by practice of the embodiments of the application. The objectives and other advantages of the application will be realized and attained by the structure particularly pointed out in the written description and claims thereof as well as the appended drawings.
Drawings
In order to more clearly illustrate the invention or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic flow chart of a chemical power output control method according to the present invention.
Fig. 2 is a schematic diagram of the state characteristics of the present invention.
FIG. 3 is a second flow chart of the chemical power output control method according to the present invention.
Fig. 4 is a schematic diagram of the condition curves and characteristic curves provided by the present invention.
FIG. 5 is a schematic diagram of a chemical power output control system according to the present invention;
Fig. 6 is a schematic structural diagram of an electronic device provided by the present invention.
Detailed Description
Embodiments of the technical scheme of the present application will be described in detail below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present application, and thus are merely examples, and are not intended to limit the scope of the present application.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having" and any variations thereof in the description of the application and the claims and the description of the drawings above are intended to cover a non-exclusive inclusion.
In the description of embodiments of the present application, the technical terms "first," "second," and the like are used merely to distinguish between different objects and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, a particular order or a primary or secondary relationship. In the description of the embodiments of the present application, the meaning of "plurality" is two or more unless explicitly defined otherwise.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.
A chemical power output control method of the present invention is described below with reference to fig. 1, including:
s101: acquiring first output information, second output information and states of a chemical power supply, wherein the first output information, the second output information and the states are specifically working states, the chemical power supply has a plurality of states, and a corresponding characteristic curve is preset in the chemical power supply in each state;
S102: acquiring a class-II variable and a class-II variable according to the first output information and the second output information respectively;
S103: the control variable of the output control module is changed so as to change the output of the chemical power supply, and the corresponding relation between the first class variable and the second class variable accords with the characteristic curve corresponding to the current state.
The chemical power source in the present invention may be a battery, a storage battery or a fuel cell, for example.
In the invention, the characteristic curve is a curve directly or indirectly related to a class-variable and a class-variable, and illustratively, the abscissa and the ordinate of the characteristic curve are a class-variable and a class-variable respectively, so that the class-variable and the class-variable are limited. In S103. The corresponding relation between the first class variable and the second class variable accords with the characteristic curve corresponding to the current state, namely, the numerical relation between the first class variable and the second class variable accords with the limitation of the characteristic curve.
The invention can output electric energy according to the design characteristics of the chemical power supply, realizes millisecond response time through the output control circuit, is also suitable for chemical power supplies in different states, adopts different characteristic curves in different states, and improves the stability and service life of the chemical power supply.
In the invention, in S103, the control variable of the output control module is changed, and the cathode loop of the chemical battery can be adjusted according to the power requirement of the chemical battery while the first class variable and the second class variable are adjusted, and the anode loop of the chemical battery is automatically adjusted in the change state of the cathode loop. Specifically, taking a chemical battery as an example of a fuel battery, the follow-up change of the output of the electric pile can be realized by adjusting the first class variable and the second class variable while the cathode loop air supply is changed according to the power requirement, so that the response speed of the dynamic change of the output of the system is improved, and the change times of the output of the electric pile are reduced.
The first-class variable and the second-class variable of the invention correspond to the measurement data of the output current sensor and the output voltage sensor of the chemical battery, can accurately and specifically describe the parameters and the performances of the chemical battery, and can be used as control targets by the person skilled in the art to improve the control effect of the invention on the chemical battery.
Further, in one embodiment, to clarify and obtain the state of the chemical power source, the state is a state adapted to different state parameters of the chemical power source.
Specifically, the state of the chemical power source may be switched by acquiring a current state parameter of the chemical power source.
Taking a chemical power supply as a fuel cell as an example, a state board provided by the chemical power supply includes a reference state, a water blocking state, a water shortage state and a catalyst recovery state, wherein the reference state is a normal running state of the chemical power supply, the water blocking state is a state corresponding to a situation that a chemical power supply stack is blocked with too high water content, the water shortage state is a state corresponding to a situation that the chemical power supply stack is blocked with too low water content, and the catalyst recovery state is a state corresponding to a situation that the chemical power supply catalyst needs to be recovered by oxidation.
The state parameter of the chemical power supply may be a parameter obtained through EIS detection, or may be an operating parameter of the chemical power supply. The EIS (Electrochemical Impedance Spectroscopy) is specifically referred to electrochemical impedance spectrum test, which can obtain the impedance and capacitance of the chemical power supply, and the EIS measures the ratio of the ac potential to the current signal (the ratio is the impedance of the system) along with the change of the sine wave frequency ω or the change of the phase angle Φ of the impedance along with ω by applying an ac potential wave with small amplitude and different frequency to the chemical power supply.
For example, the state parameter of the water blocking state may be mass transfer impedance of the chemical power supply obtained by EIS detection, and if the transferred impedance of the chemical power supply is greater than a preset transferred impedance threshold, the current state of the chemical power supply is the water blocking state, for example: if the mass transfer impedance of the 100kW galvanic pile exceeds 100mΩ, the state of the chemical power supply is a water shutoff state.
Similarly, the state parameter of the water-deficient state may be an activation impedance obtained by EIS detection, and if the activation impedance of the chemical power supply is greater than a preset activation impedance threshold, the current state of the chemical power supply is the water-deficient state, for example: if the water shortage impedance of the 100kW galvanic pile exceeds 100mΩ, the state of the chemical power supply is a water shortage state.
For example, the state parameter of the catalyst recovery state may be an output current of the chemical power supply, and if the chemical power supply is in a low current condition and the output current is less than a preset current threshold, the current state of the chemical power supply is the catalyst recovery state. For example, the low current condition is set to a current density less than 0.5A/cm2, and if the output current is less than 70% of the design value, the state of the chemical power supply is the catalyst recovery state.
Corresponding to the four states, a preset characteristic curve is set for each state, and the characteristic curves are set by taking a class-one variable as a pile output current and a class-two variable as a pile output voltage as an example, as shown in fig. 2, and specific examples are as follows:
the characteristic curve corresponding to the reference state can realize long-time stable operation under the preset working condition parameters, and the water content and the output performance of the electric pile are kept stable for a long time;
The characteristic curve in the water shutoff state has a voltage slightly higher than the characteristic curve corresponding to the reference state, and under the same air supply condition, compared with the conventional curve, the output voltage of the electric pile is higher, the current is smaller, the generated water quantity is less, the water content of the electric pile can be reduced, and the electric pile is suitable for the situation that the electric pile is in the water shutoff state with the excessively high water content;
The characteristic curve in the water shortage state has a voltage slightly lower than the corresponding characteristic curve in the reference state under the same air supply condition, and compared with the conventional curve, the electric pile has lower output voltage, larger current and more generated water, can improve the water content of the electric pile, and is suitable for the situation that the electric pile is in the water shortage state with the excessively low water content;
The characteristic curve of the catalyst recovery state is lower than the output voltage of the conventional operation characteristic curve for the case that the catalyst oxidation needs to be recovered, and simultaneously increases the gas flow and reduces the pressure so as to remove excessive moisture.
The above four states are merely examples of states of the fuel cell, and the state of the chemical power supply in the present invention is not limited to the above four states, and the characteristic curve corresponding to each state is not limited to the characteristic curve preset in the above examples, and those skilled in the art can set different states according to the characteristics of the chemical power supply and preset different and corresponding characteristic curves.
According to the invention, under each state of the chemical power supply, the output of the chemical power supply is controlled according to the preset characteristic curve, and then one type of variable and two types of variable are controlled, so that the method has strong pertinence and good stability under different states, and the chemical power supply can be regulated according to different states, so that the service life and the working efficiency of the chemical power supply are improved.
Further, in one embodiment, as shown in fig. 2, in order to achieve that the correspondence between the first class variable and the second class variable conforms to the characteristic curve corresponding to the current state, the specific step of S103 includes S203: under the condition that the state parameters of the chemical power supply are unchanged, the control variables are controlled according to the deviation information of the characteristic curves corresponding to the first-class variable and the second-class variable and the current state, so that the first-class variable and the second-class variable tend to be on the characteristic curve corresponding to the current state.
Specifically, deviation information of points closest to the first-class variable and the second-class variable on the characteristic curve can be obtained, wherein the deviation information comprises a deviation distance and a deviation direction. The control variable of the output control module can be adjusted according to the deviation, and the distance between the first class variable and the second class variable and the characteristic curve is approximately 0 by utilizing an adjusting means of open loop control or closed loop control.
For convenience of explanation, as shown in fig. 3, in the case that the state parameters of the chemical power supply are unchanged, each class of variables may correspond to one class of variables within a reasonable range of the class of variables, the correspondence forms a series of class variable-class variable fixed condition curves (hereinafter referred to as condition curves) corresponding to fixed conditions, and the change of the control variables may cause the change of the class variable and the class variable on the condition curves; under the condition that one type of variable and the control variable are unchanged, the change of the state parameters of the chemical power supply can lead to the change of the two types of variables; in the case of a constant control variable, a change in a state parameter of the chemical power supply may result in a change in one type of variable and the second type of variable. For ease of illustration, the following examples are presented with a class one variable and a class two variable compliance curve. The invention is not limited to the case where one type of variable and two types of variables conform to a conditional curve. When the first class variable and the second class variable do not accord with the conditional curves, the person skilled in the art can also adjust the control variable according to the chemical battery information, so that the first class variable and the second class variable accord with the preset ground characteristic curves in the current state.
Specifically, the characteristic curves of the first class variable and the second class variable preset under different states are hereinafter referred to as characteristic curves, do not coincide with any one of the condition curves, intersect a series of condition curves, and only have a limited number of intersection points with each intersecting condition curve; in the running process of the system, when the actual values of the first class variable and the second class variable deviate from the characteristic curve, the control variable is adjusted according to the deviation direction and the deviation, so that the first class variable and the second class variable output by the chemical power supply are returned to the characteristic curve.
According to the invention, the control variables are controlled according to the deviation information of the characteristic curves corresponding to the first-class variable and the second-class variable with the current state, the whole chemical power supply system is controlled to always keep the output characteristic corresponding to the preset characteristic curve, the millisecond response time is realized through the output control circuit, and the stability and the service life of the chemical power supply are improved.
Further, in one embodiment, in order to implement adjustment of the first variable and the second variable, a negative feedback control method or a positive feedback control method may be used to control the control variable, where the control purpose is to make the first variable and the second variable tend to be on the characteristic curves corresponding to the current state.
The output control module of the present invention is illustratively an output control circuit.
In this embodiment, the following chemical power parameters are taken as an example: one type of variable is pile output current, the other type of variable is pile output voltage, and the control variable is DC transformer output switch duty ratio; the output control circuit outputs a direct current transformer (FDC) for the fuel cell, and the chemical power supply is the fuel cell; acquiring the state of a chemical power supply in real time, and matching a corresponding preset characteristic curve; under the condition that the operation condition of the fuel cell changes dynamically, the output current and the output voltage of the fuel cell are kept on the preset volt-ampere characteristic curve through the automatic feedback control of the output duty ratio of the direct-current transformer.
Taking a negative feedback control method and taking a state as a reference state as an example, the control process specifically comprises the following steps:
The method comprises the steps of monitoring output current and output voltage of a fuel cell stack in real time, comparing the output current and the output voltage with a preset stack target volt-ampere characteristic curve, and adjusting the output current and the output voltage of the fuel cell stack at the input side of a fuel cell output direct current transformer FDC, wherein the adjusting process comprises the following steps:
If the output current and the output voltage are positioned below the target volt-ampere characteristic curve of the electric pile, the output direct-current transformer of the fuel cell reduces the output current by adjusting the duty ratio of the internal direct-current transformation circuit, thereby improving the output voltage and approaching to the corresponding characteristic curve in the current reference state;
If the output current and the output voltage are above the target volt-ampere characteristic curve of the electric pile, the output direct-current transformer of the fuel cell increases the output current by adjusting the duty ratio of the internal direct-current transformation circuit, thereby reducing the output voltage and approaching to the corresponding characteristic curve under the current reference state.
In this embodiment, on the input side of the output dc transformer of the fuel cell, the output current and output voltage of the fuel cell stack are adjusted, and under the condition that the operating condition parameters of the fuel cell are maintained or changed, the current and voltage values on the input side are always located on the target volt-ampere characteristic curve of the fuel cell stack by adjusting the duty ratio of the electronic device of the Buck-Boost circuit, so that the electric energy is output according to the preset output performance of the fuel cell stack.
According to the embodiment, the current and voltage values entering the input side of the transformer are guaranteed to be located on the preset volt-ampere characteristic curve of the electric pile, so that the whole fuel cell system always keeps preset output characteristics, millisecond response time is achieved through duty ratio control of the transformer side, and stability and service life of operation of the electric pile are improved.
Specifically, the embodiment sets the target parameter of the FDC control to the distance of the current voltage output by the stack from the target voltammetric characteristic curve on the voltammetric characteristic curve; if the actual output current voltage of the electric pile is below the target curve, reducing the output electric energy of the electric pile through FDC so as to reduce the actual output current of the electric pile, improve the voltage and approach the target curve from below; if the actual output current voltage of the electric pile is above the target curve, the electric pile output electric energy is increased through the FDC, so that the actual output current of the electric pile is increased, the voltage is reduced, and the electric pile approaches the target curve from above.
According to the embodiment, the FDC is used as an important part of the pile control, and the response speed of a circuit in the FDC is far higher than that of components of the hydrogen loop and the air loop, so that the fast response characteristic of the FDC can be utilized to realize that the actual output of the pile is locked on a characteristic curve preset in the current state in the process of dynamic change of the components of the hydrogen loop and the air loop, and the running stability and the service life of the pile are improved.
When the fuel cell is in an operating state, the duty ratio of the fuel cell output direct-current transformer is adjusted by calculating the difference value between the output current and the output voltage of the fuel cell and the target volt-ampere characteristic curve of the fuel cell;
the difference value is a voltage difference under the same current, a current difference under the same voltage, or a numerical value calculated by adopting the voltage difference and the current difference.
If the voltage difference is used as the difference value, the duty ratio adjustment process of the fuel cell output direct current transformer is specifically as follows:
Calculating the difference value between the output current and the output voltage of the fuel cell stack and the corresponding point in the target volt-ampere characteristic curve of the fuel cell stack, wherein the difference value is a voltage difference;
If the difference value is equal to zero, namely the actual output current and voltage of the fuel cell are in the target volt-ampere characteristic curve, the duty ratio is kept unchanged;
if the difference value is larger than zero, namely the actual output current and voltage of the fuel cell are above the target volt-ampere characteristic curve, the duty ratio is adjusted, and the output current of the fuel cell stack is increased;
And if the difference value is smaller than zero, namely the actual output current and voltage of the fuel cell are below the target volt-ampere characteristic curve, the duty ratio is adjusted, and the output current of the fuel cell stack is reduced.
Further, in one embodiment, the difference from the above embodiment is that: the second class variable is pile output power, the control variable is output switch duty ratio of brushless motor driver, and the output control circuit is brushless motor driver; the chemical power supply is a fuel cell, and the preset characteristic curve is a power characteristic curve; under the condition that the operation condition of the fuel cell is dynamically changed, the output duty ratio of the brushless motor driver is automatically controlled, so that the output current and the output power of the fuel cell are kept on the corresponding preset power characteristic curves under the current state of the fuel cell.
Further, in one embodiment, the difference from the above embodiment is that: the first type of variable is the output current density of the electric pile, the second type of variable is the internal resistance compensation output voltage of the electric pile (the voltage obtained by calculation after the high-frequency internal resistance voltage drop is compensated), the control variable is the input power of an electronic load, and the output control circuit is the electronic load; the chemical power supply is a fuel cell; under the condition that the operation condition of the fuel cell changes dynamically, the output current of the fuel cell and the internal resistance compensation output voltage of the electric pile are kept on the preset characteristic curve corresponding to the current fuel cell state through the automatic control of the input power of the electronic load.
Further, in one embodiment, the present invention acquires the current state of the chemical power supply in real time, and if the state is switched to another state, the control variables are adjusted according to the characteristic curve corresponding to the other state, so that the first-class variable and the second-class variable conform to the characteristic curve in the current state.
Further, in one embodiment, the first output information is measured data of the chemical power supply output current sensor, and may be a detected battery reaction "rate", where the "rate" may be parameters such as "battery output current", "average current density", "hydrogen consumption rate", "air consumption rate", "oxygen consumption rate", or a combination of the above parameters, which is not limited in this disclosure. The second output information is measurement data of a chemical power supply output voltage sensor, and may be "performance" of the detected battery output, where the "performance" may be parameters such as "battery output voltage", "battery output power", "stack output efficiency", and the like, or may be "high-frequency impedance", "activation overpotential", "concentration overpotential", or a combination value of the above parameters, which are obtained through real-time electrochemical impedance spectroscopy measurement, and the disclosure is not limited.
Further, in one embodiment, corresponding to the first output information and the second output information in the above embodiment, one type of variable is, for example, a chemical power supply output current or a chemical power supply output current density, or a variable calculated therefrom; the second type of variable is chemical power supply output voltage, chemical power supply output power or chemical power supply internal resistance compensation output voltage, or a variable calculated by the chemical power supply output voltage, the chemical power supply output power or the chemical power supply internal resistance compensation output voltage. The present disclosure does not specifically limit the first output information and the second output information.
Further, in one embodiment, the control variable of the output control module is a chemical power supply output target current, a chemical power supply output target voltage, a chemical power supply output target power, an equivalent output impedance value, an internal resistance compensation output voltage, an internal resistance compensation output power, a chemical power supply output thermal power, or a control circuit electronic device switching duty cycle, or other control state parameters that can change the chemical power supply output current, voltage, or electrical power, which is not limited by the present disclosure.
The chemical power output control system provided by the invention is described below, and the chemical power output control system described below and the chemical power output control method described above can be referred to correspondingly.
A chemical power output control system, as shown in fig. 5, comprising: an information obtaining unit 410, configured to obtain first output information, second output information, and a state of a chemical power supply, where the chemical power supply has a plurality of states, and a corresponding characteristic curve is preset in each state of the chemical power supply; the variable obtaining unit 420 is configured to obtain a class variable and a class variable according to the first output information and the second output information, respectively; the output control unit 430 is configured to change a control variable of the output control module, and further change an output of the chemical power supply, so that a corresponding relationship between the first class variable and the second class variable accords with a characteristic curve corresponding to the current state.
Fig. 6 is a schematic diagram of an electronic device according to an embodiment of the present application. Referring to fig. 6, the electronic device 500 includes: processor 510, memory 520, and communication interface 530, which are interconnected and communicate with each other by a communication bus 540 and/or other form of connection mechanism (not shown) to perform a chemical power output control method, comprising: acquiring first output information, second output information and states of a chemical power supply, wherein the chemical power supply has multiple states, and a corresponding characteristic curve is preset in each state of the chemical power supply; acquiring a class-II variable and a class-II variable according to the first output information and the second output information respectively; the control variable of the output control module is changed so as to change the output of the chemical power supply, and the corresponding relation between the first class variable and the second class variable accords with the characteristic curve corresponding to the current state.
The Memory 520 includes one or more (Only one is shown in the figure), which may be, but is not limited to, a random access Memory (Random Access Memory, abbreviated as RAM), a Read Only Memory (ROM), a programmable Read Only Memory (Programmable Read-Only Memory, abbreviated as PROM), an erasable Read Only Memory (Erasable Programmable Read-Only Memory, abbreviated as EPROM), an electrically erasable Read Only Memory (Electric Erasable Programmable Read-Only Memory, abbreviated as EEPROM), and the like. Processor 510 and other possible components may access memory 520, read and/or write data therein.
Processor 510 includes one or more (only one shown) which may be an integrated circuit chip having signal processing capabilities. The processor 510 may be a general-purpose processor, including a central processing unit (Central Processing Unit, CPU), a micro control unit (Micro Controller Unit, MCU), a network processor (Network Processor, NP), or other conventional processor; but may also be a special purpose Processor including a digital signal Processor (DIGITAL SIGNAL Processor), application SPECIFIC INTEGRATED Circuits (ASIC), field programmable gate array (Field Programmable GATE ARRAY FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware components.
Communication interface 530 includes one or more (only one shown) that may be used to communicate directly or indirectly with other devices for data interaction. For example, communication interface 530 may be an ethernet interface; may be a mobile communications network interface, such as an interface of a 3G, 4G, 5G network; or may be other types of interfaces with data transceiving functionality.
One or more computer program instructions may be stored in the memory 520 that the processor 510 may read and execute to implement the chemical power output control methods and other desired functions provided by embodiments of the present application.
It is to be understood that the configuration shown in fig. 6 is illustrative only, and that electronic device 500 may also include more or fewer components than shown in fig. 6, or have a different configuration than shown in fig. 6. The components shown in fig. 6 may be implemented in hardware, software, or a combination thereof. For example, the electronic device 500 may be a single server (or other device with computing capabilities), a combination of multiple servers, a cluster of a large number of servers, etc., and may be either a physical device or a virtual device.
In another aspect, the present invention also provides a computer program product, the computer program product comprising a computer program, the computer program being storable on a non-transitory computer readable storage medium, the computer program, when executed by a processor, being capable of executing the chemical power output control method provided by the above methods, comprising: acquiring first output information, second output information and states of a chemical power supply, wherein the chemical power supply has multiple states, and a corresponding characteristic curve is preset in each state of the chemical power supply; acquiring a class-II variable and a class-II variable according to the first output information and the second output information respectively; the control variable of the output control module is changed so as to change the output of the chemical power supply, and the corresponding relation between the first class variable and the second class variable accords with the characteristic curve corresponding to the current state.
In yet another aspect, the present invention also provides a non-transitory computer readable storage medium having stored thereon a computer program which, when executed by a processor, is implemented to perform the chemical power output control method provided by the above methods, comprising: acquiring first output information, second output information and states of a chemical power supply, wherein the chemical power supply has multiple states, and a corresponding characteristic curve is preset in each state of the chemical power supply; acquiring a class-II variable and a class-II variable according to the first output information and the second output information respectively; the control variable of the output control module is changed so as to change the output of the chemical power supply, and the corresponding relation between the first class variable and the second class variable accords with the characteristic curve corresponding to the current state. For example, a computer-readable storage medium may be implemented as memory 520 in electronic device 500 in fig. 5.
The apparatus embodiments described above are merely illustrative, wherein the elements illustrated as separate elements may or may not be physically separate, and the elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art will understand and implement the present invention without undue burden.
From the above description of the embodiments, it will be apparent to those skilled in the art that the embodiments may be implemented by means of software plus necessary general hardware platforms, or of course may be implemented by means of hardware. Based on this understanding, the foregoing technical solution may be embodied essentially or in a part contributing to the prior art in the form of a software product, which may be stored in a computer readable storage medium, such as ROM/RAM, a magnetic disk, an optical disk, etc., including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method described in the respective embodiments or some parts of the embodiments.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (8)
1. A chemical power output control method, comprising:
acquiring first output information, second output information and working states of a chemical power supply, wherein the chemical power supply has a plurality of working states, and a corresponding characteristic curve is preset in the chemical power supply under each working state;
Obtaining a class of variables and a class of variables according to the first output information and the second output information respectively, wherein the class of variables are chemical power supply output current or chemical power supply output current density or variables obtained by calculation, the class of variables are chemical power supply output voltage, chemical power supply output power or chemical power supply internal resistance compensation output voltage or variables obtained by calculation, the class of variables and the class of variables corresponding to the class of variables form a condition curve, and the characteristic curve is intersected with a plurality of condition curves;
Changing control variables of an output control module to further change the output of the chemical power supply, so that the corresponding relation between the first class variable and the second class variable accords with a characteristic curve corresponding to the current state, wherein the control variables of the output control module are chemical power supply output target current, chemical power supply output target voltage, chemical power supply output target power, equivalent output impedance value, internal resistance compensation output voltage, internal resistance compensation output power, chemical power supply output thermal power or control circuit electronic device switch duty ratio, or other control state parameters capable of changing chemical power supply output current, voltage or electric power.
2. The method for controlling output of a chemical power supply according to claim 1, wherein said changing the control variable of the output control module to change the output of the chemical power supply so that the correspondence between the first type variable and the second type variable conforms to the characteristic curve corresponding to the current state comprises:
under the condition that the state parameters of the chemical power supply are unchanged, the control variables are controlled according to the deviation information of the characteristic curves corresponding to the first-class variable and the second-class variable and the current state, so that the first-class variable and the second-class variable tend to be on the characteristic curve corresponding to the current state.
3. A chemical power output control method as set forth in claim 2, wherein the control variable is controlled by a negative feedback control method or a positive feedback control method.
4. The chemical power supply output control method according to claim 1, wherein the state is a state adapted to each state parameter of the chemical power supply.
5. The chemical power supply output control method according to claim 1, wherein the chemical power supply is a battery, a storage battery, or a fuel cell.
6. A chemical power output control system, comprising:
the information acquisition unit is used for acquiring first output information, second output information and states of the chemical power supply, wherein the chemical power supply has a plurality of states, and a corresponding characteristic curve is preset in each state of the chemical power supply;
The variable obtaining unit is used for obtaining a class of variables and a class of variables according to the first output information and the second output information respectively, wherein the class of variables are chemical power supply output current or chemical power supply output current density or variables obtained by calculation, the class of variables are chemical power supply output voltage, chemical power supply output power or chemical power supply internal resistance compensation output voltage or variables obtained by calculation, the class of variables and the class of variables corresponding to the class of variables form a condition curve, and the characteristic curve is intersected with a plurality of condition curves;
The output control unit is used for changing the control variable of the output control unit so as to change the output of the chemical power supply, so that the corresponding relation between the first type variable and the second type variable accords with the characteristic curve corresponding to the current state, wherein the control variable of the output control unit is the chemical power supply output target current, the chemical power supply output target voltage, the chemical power supply output target power, the equivalent output impedance value, the internal resistance compensation output voltage, the internal resistance compensation output power, the chemical power supply output thermal power or the switching duty ratio of an electronic device of a control circuit, or other control state parameters capable of changing the chemical power supply output current, voltage or electric power.
7. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor implements a chemical power output control method as claimed in any one of claims 1 to 5 when the program is executed by the processor.
8. A non-transitory computer readable storage medium having stored thereon a computer program, wherein the computer program when executed by a processor implements a chemical power output control method according to any one of claims 1 to 5.
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| CN202211589591.1A CN116031970B (en) | 2022-12-12 | 2022-12-12 | Chemical power output control method, system, equipment and storage medium |
| PCT/CN2023/137885 WO2024125449A1 (en) | 2022-12-12 | 2023-12-11 | Chemical power supply output control method and system, device, and storage medium |
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| CN202211589591.1A CN116031970B (en) | 2022-12-12 | 2022-12-12 | Chemical power output control method, system, equipment and storage medium |
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| CN105966255A (en) * | 2016-05-10 | 2016-09-28 | 清华大学 | Control method of output power of vehicle fuel battery system |
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| DE102015225354A1 (en) * | 2015-12-16 | 2017-06-22 | Bayerische Motoren Werke Aktiengesellschaft | A method for determining a degradation state of a fuel cell assembly, method of operating a fuel cell assembly, control unit, operating device and computer program product |
| CN112421080B (en) * | 2020-11-18 | 2021-09-03 | 上海恒劲动力科技有限公司 | Power control system of proton exchange membrane fuel cell |
| CN112652791B (en) * | 2020-12-22 | 2022-05-03 | 佛山仙湖实验室 | Hydrogen and air coordination control method for hydrogen fuel cell |
| CN113682161B (en) * | 2021-09-29 | 2023-09-22 | 中汽创智科技有限公司 | Fuel cell control method, device, equipment and medium for hybrid electric vehicle |
| CN115447446A (en) * | 2022-09-27 | 2022-12-09 | 中通客车股份有限公司 | Control method and system for correcting response current of fuel cell system |
| CN116031970B (en) * | 2022-12-12 | 2024-04-26 | 上海氢晨新能源科技有限公司 | Chemical power output control method, system, equipment and storage medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102047485A (en) * | 2008-04-11 | 2011-05-04 | Bdfip控股有限公司 | System and method of starting a fuel cell system |
| CN105966255A (en) * | 2016-05-10 | 2016-09-28 | 清华大学 | Control method of output power of vehicle fuel battery system |
| CN114335628A (en) * | 2021-12-29 | 2022-04-12 | 上海重塑能源科技有限公司 | Non-storage type online iterative estimation method of polarization curve and fuel cell system |
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| CN116031970A (en) | 2023-04-28 |
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