CN115472867A - Control method of auxiliary heat dissipation system of dual-fuel battery engine and fuel battery system - Google Patents
Control method of auxiliary heat dissipation system of dual-fuel battery engine and fuel battery system Download PDFInfo
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- CN115472867A CN115472867A CN202211359914.8A CN202211359914A CN115472867A CN 115472867 A CN115472867 A CN 115472867A CN 202211359914 A CN202211359914 A CN 202211359914A CN 115472867 A CN115472867 A CN 115472867A
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- 238000001816 cooling Methods 0.000 claims abstract description 28
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04007—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
- H01M8/04029—Heat exchange using liquids
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04007—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
- H01M8/04014—Heat exchange using gaseous fluids; Heat exchange by combustion of reactants
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04007—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
- H01M8/04067—Heat exchange or temperature measuring elements, thermal insulation, e.g. heat pipes, heat pumps, fins
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04007—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
- H01M8/04067—Heat exchange or temperature measuring elements, thermal insulation, e.g. heat pipes, heat pumps, fins
- H01M8/04074—Heat exchange unit structures specially adapted for fuel cell
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04298—Processes for controlling fuel cells or fuel cell systems
- H01M8/04313—Processes for controlling fuel cells or fuel cell systems characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function
- H01M8/0432—Temperature; Ambient temperature
- H01M8/04373—Temperature; Ambient temperature of auxiliary devices, e.g. reformers, compressors, burners
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04298—Processes for controlling fuel cells or fuel cell systems
- H01M8/04992—Processes for controlling fuel cells or fuel cell systems characterised by the implementation of mathematical or computational algorithms, e.g. feedback control loops, fuzzy logic, neural networks or artificial intelligence
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
Abstract
The invention provides a control method of an auxiliary heat dissipation system of a dual-fuel battery engine and a fuel battery system. The control method of the auxiliary cooling system of the dual-fuel battery engine comprises the following steps: when one fuel cell engine works, the water pump is made to rotate at a rated rotating speed, the opening of the electronic thermostat is controlled to enable the cooling liquid of the auxiliary heat dissipation system to cool the working fuel cell engine auxiliary system, and the heat dissipation capacity of the heat dissipation device is controlled based on the acquired temperature of the working fuel cell engine auxiliary system; when the two fuel cell engines work, the water pump is made to rotate at a rated rotating speed, the opening of the electronic thermostat is controlled to enable the cooling liquid of the auxiliary cooling system to simultaneously cool the two fuel cell engine auxiliary systems, and the heat dissipation capacity of the cooling device is controlled based on the collected temperatures of the two fuel cell engine auxiliary systems. The purposes of simple structure, easy arrangement, low cost and good economy are achieved.
Description
Technical Field
The invention belongs to the technical field of new energy, and particularly relates to a control method of an auxiliary heat dissipation system of a dual-fuel battery engine and a fuel battery system.
Background
Because of the limitations of technological development, the power of a single fuel cell engine may not meet the requirements of practical applications, such as high power cogeneration systems, and therefore multiple engines may need to be combined to deliver energy. Generally, each engine needs one auxiliary heat dissipation system, but when a plurality of engines are combined, if each engine is provided with one auxiliary heat dissipation system, the excessive use of parts can increase the cost of the system and reduce the economy. When a plurality of engines are combined in the prior art, each engine independently uses one set of auxiliary heat dissipation system. The problems of large number of parts, complex system structure, difficult arrangement, high cost and poor economical efficiency exist.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a control method of an auxiliary cooling system of a dual-fuel battery engine and a fuel battery system, which at least partially solve the problems of complex structure, difficult arrangement, high cost and poor economical efficiency in the prior art.
In a first aspect, an embodiment of the disclosure provides a method for controlling an auxiliary heat dissipation system of a dual-fuel cell engine, where the auxiliary heat dissipation system includes an electronic thermostat, a heat dissipation device, a water pump and a temperature sensor, the auxiliary heat dissipation system is connected with at least two fuel cell engines, the auxiliary heat dissipation system is used for dissipating heat of the auxiliary systems of the at least two fuel cell engines, an output end of the heat dissipation device is communicated with an input end of the electronic thermostat, the water pump is arranged between the heat dissipation device and the electronic thermostat, and an output end of the heat dissipation device is provided with the temperature sensor;
the method comprises the following steps:
when a fuel cell engine works, the water pump is rotated at a rated rotating speed, the opening of the electronic thermostat is controlled to enable the cooling liquid of the auxiliary heat dissipation system to cool the working fuel cell engine auxiliary system, and when the working fuel cell engine is cooled, the heat dissipation capacity of the heat dissipation device is controlled through the acquired temperature of the working fuel cell engine auxiliary system;
when the two fuel cell engines work, the water pump is made to rotate at a rated rotating speed, the opening of the electronic thermostat is controlled to enable the cooling liquid of the auxiliary cooling system to cool the two fuel cell engine auxiliary systems simultaneously, and when the two fuel cell engine auxiliary systems are cooled simultaneously, the heat dissipation capacity of the cooling device is controlled based on the collected temperatures of the two fuel cell engine auxiliary systems.
Optionally, the method further includes:
calculating a required electric power based on the load;
comparing the required electric power with a rated power of the single fuel cell engine;
if the required electric power is larger than the rated power of a single fuel cell engine, starting two fuel cell engines to work;
and if the required electric power is not more than the rated power of the single fuel cell engine, starting the operation of one fuel cell engine.
Alternatively, in the control of the heat dissipation amount of the heat dissipation device or the rotation speed of the water pump by the temperature of the fuel cell engine auxiliary system based on the collected operation when one fuel cell engine is operated,
the temperatures collected for the operating fuel cell engine auxiliary system include the air compressor controller temperature of the operating fuel cell engine, the air compressor temperature of the operating fuel cell engine, and the DCDC temperature of the operating fuel cell engine.
Optionally, when one fuel cell engine is in operation, controlling the heat dissipation capacity of the heat dissipation device or the rotation speed of the water pump by the temperature of the fuel cell engine auxiliary system based on the collected operation includes
When any one of the temperature of the air compressor controller, the temperature of the air compressor and the temperature of the DCDC reaches a set temperature T0, starting a fan of the heat dissipation device;
when the temperature of the air compressor controller, the temperature of the air compressor and the temperature of the DCDC are all lower than the set temperature T1, the fan is closed;
and when any one of the air compressor controller temperature, the air compressor temperature and the DCDC temperature reaches the set temperature T2, controlling the fan to work at a second set rotating speed.
Optionally, when one fuel cell engine is in operation, controlling the heat dissipation capacity of the heat dissipation device or the rotation speed of the water pump by the temperature of the fuel cell engine auxiliary system based on the collected operation includes
The temperature of the temperature sensor is acquired, and the rotating speed of the fan is controlled based on the temperature of the temperature sensor.
Optionally, when the two fuel cell engines work, the two fuel cell engines are respectively a first fuel cell engine and a second fuel cell engine in controlling the heat dissipation capacity of the heat dissipation device based on the collected temperatures of the auxiliary systems of the two fuel cell engines;
the collected temperatures of the two fuel cell engine auxiliary systems comprise a first air compressor controller temperature of the first fuel cell engine, a first air compressor temperature of the first fuel cell engine, a first DCDC temperature of the first fuel cell engine, a second air compressor controller temperature of the second fuel cell engine, a second air compressor temperature of the second fuel cell engine and a second DCDC temperature of the second fuel cell engine.
Optionally, when the two fuel cell engines are operated, controlling the heat dissipation capacity of the heat dissipation device based on the collected temperatures of the auxiliary systems of the two fuel cell engines, includes:
when any one of the first air compressor controller temperature, the first air compressor temperature, the first DCDC temperature, the second air compressor controller temperature, the second air compressor temperature and the second DCDC temperature reaches a set temperature T0, a fan of the heat dissipation device is started;
when the temperature of the first air compressor controller, the temperature of the first air compressor, the temperature of the first DCDC, the temperature of the second air compressor controller, the temperature of the second air compressor and the temperature of the second DCDC are all lower than a set temperature T1, the fan is turned off;
when the temperature of the first air compressor controller, the temperature of the first air compressor, the temperature of the first DCDC, the temperature of the second air compressor controller, the temperature of the second air compressor and the temperature of the second DCDC reach a set temperature T2, the fan is controlled to work at a first set rotating speed.
Optionally, when the two fuel cell engines are operated, controlling the heat dissipation capacity of the heat dissipation device based on the collected temperatures of the auxiliary systems of the two fuel cell engines comprises:
the rotation speed of the fan is controlled based on the temperature of the temperature sensor.
Optionally, when the two fuel cell engines work, the opening of the electronic thermostat is controlled to enable the cooling liquid of the auxiliary cooling system to flow through the two fuel cell engines at equal flow, water is supplemented and exhausted through the water tank, and the cooling is performed by controlling the rotating speed of the water pump and the heat dissipating capacity of the heat dissipating device;
when a fuel cell engine works, the opening of the electronic thermostat is controlled to enable cooling liquid of the auxiliary cooling system to flow through the working fuel cell engine, water is supplemented and exhausted through the water tank, and the cooling is carried out by controlling the rotating speed of the water pump and the heat dissipating capacity of the heat dissipating device.
In a second aspect, embodiments of the present disclosure further provide a fuel cell system using the control method according to any one of the first aspect.
The invention provides a control method of an auxiliary heat dissipation system of a dual-fuel battery engine and a fuel battery system. The method for controlling the auxiliary cooling system of the dual-fuel cell engine comprises the steps that a plurality of fuel cell engines share one set of auxiliary cooling system, the auxiliary cooling system is controlled to cool the auxiliary system of the fuel cell engine according to the working condition of the fuel cell engine, and therefore one set of auxiliary cooling system is shared. Therefore, the purposes of simple structure, easy arrangement, low cost and good economy are achieved.
Drawings
The foregoing and other objects, features and advantages of the disclosure will be apparent from the following more particular descriptions of exemplary embodiments of the disclosure as illustrated in the accompanying drawings wherein like reference numbers generally represent like parts throughout the exemplary embodiments of the disclosure.
Fig. 1 is a schematic structural diagram of an auxiliary heat dissipation system according to an embodiment of the present disclosure;
fig. 2 is a flowchart of a control method provided in an embodiment of the present disclosure;
wherein, 1-a heat dissipation device; 2-a temperature sensor; 3-a water pump; 4-an electronic thermostat; 5-a water tank; 6-liquid level sensor.
Detailed Description
The embodiments of the present disclosure are described in detail below with reference to the accompanying drawings.
It is to be understood that the embodiments of the present disclosure are described below by specific examples, and other advantages and effects of the present disclosure will be readily apparent to those skilled in the art from the disclosure herein. It is to be understood that the embodiments described are only a few embodiments of the present disclosure, and not all embodiments. The disclosure may be embodied or carried out in various other specific embodiments, and various modifications and changes may be made in the details within the description without departing from the spirit of the disclosure. It should be noted that the features in the following embodiments and examples may be combined with each other without conflict. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without inventive step, are intended to be within the scope of the present disclosure.
It is noted that various aspects of the embodiments are described below within the scope of the appended claims. It should be apparent that the aspects described herein may be embodied in a wide variety of forms and that any specific structure and/or function described herein is merely illustrative. Based on the disclosure, one skilled in the art should appreciate that one aspect described herein may be implemented independently of any other aspects and that two or more of these aspects may be combined in various ways. For example, an apparatus may be implemented and/or a method practiced using any number of the aspects set forth herein. In addition, such an apparatus may be implemented and/or such a method may be practiced using other structure and/or functionality in addition to or other than one or more of the aspects set forth herein.
It should be further noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present disclosure, and the drawings only show the components related to the present disclosure rather than being drawn according to the number, shape and size of the components in actual implementation, and the type, number and proportion of the components in actual implementation may be changed arbitrarily, and the layout of the components may be more complicated.
In addition, in the following description, specific details are provided to facilitate a thorough understanding of the examples. However, it will be understood by those skilled in the art that the aspects may be practiced without these specific details.
A control method of an auxiliary heat dissipation system of a dual-fuel cell engine is disclosed, as shown in figure 1, the auxiliary heat dissipation system comprises an electronic thermostat, a heat dissipation device, a water pump and a temperature sensor, the auxiliary heat dissipation system is connected with at least two fuel cell engines and is used for dissipating heat of the at least two fuel cell engines, the output end of the heat dissipation device is communicated with the input end of the electronic thermostat, the water pump is arranged between the heat dissipation device and the electronic thermostat, and the output end of the heat dissipation device is provided with the temperature sensor;
the method comprises the following steps:
when a fuel cell engine works, the water pump is made to rotate at a rated rotating speed, the opening of the electronic thermostat is controlled to enable the cooling liquid of the auxiliary heat dissipation system to cool the working fuel cell engine auxiliary system, and when the working fuel cell engine auxiliary system is cooled, the heat dissipation capacity of the heat dissipation device is controlled through the acquired temperature of the working fuel cell engine auxiliary system;
when the two fuel cell engines work, the water pump is made to rotate at a rated rotating speed, the opening of the electronic thermostat is controlled to enable the cooling liquid of the auxiliary cooling system to cool the two fuel cell engine auxiliary systems simultaneously, and when the two fuel cell engine auxiliary systems are cooled simultaneously, the heat dissipation capacity of the cooling device is controlled based on the collected temperatures of the two fuel cell engine auxiliary systems.
Optionally, the method further includes:
calculating a required electric power based on the load;
comparing the required electric power with a rated power of the single fuel cell engine;
if the required electric power is larger than the rated power of a single fuel cell engine, starting two fuel cell engines to work;
if the required electric power is not greater than the rated power of the single fuel cell engine, one fuel cell engine is started to work.
Alternatively, in the control of the heat dissipation amount of the heat dissipation device or the rotation speed of the water pump by the temperature of the fuel cell engine auxiliary system based on the collected operating temperature when one fuel cell engine is operating,
the temperatures collected for the operating fuel cell engine auxiliary system include the air compressor controller temperature of the operating fuel cell engine, the air compressor temperature of the operating fuel cell engine, and the DCDC temperature of the operating fuel cell engine.
Optionally, when one fuel cell engine is operated, the heat dissipation amount of the heat dissipation device or the rotation speed of the water pump is controlled by the temperature of the fuel cell engine auxiliary system based on the collected operation, including
When any one of the temperature of the air compressor controller, the temperature of the air compressor and the temperature of the DCDC reaches a set temperature T0, starting a fan of the heat dissipation device;
when the temperature of the air compressor controller, the temperature of the air compressor and the temperature of the DCDC are all lower than the set temperature T1, the fan is closed;
and when any one of the air compressor controller temperature, the air compressor temperature and the DCDC temperature reaches the set temperature T2, controlling the fan to work at a second set rotating speed.
Optionally, when one fuel cell engine is in operation, controlling the heat dissipation capacity of the heat dissipation device or the rotation speed of the water pump by the temperature of the fuel cell engine auxiliary system based on the collected operation includes
The temperature of the temperature sensor is acquired, and the rotation speed of the fan is controlled based on the temperature of the temperature sensor.
Optionally, when the two fuel cell engines work, the two fuel cell engines are respectively a first fuel cell engine and a second fuel cell engine in controlling the heat dissipation capacity of the heat dissipation device based on the collected temperatures of the auxiliary systems of the two fuel cell engines;
the collected temperatures of the two fuel cell engines include a first air compressor controller temperature of the first fuel cell engine, a first air compressor temperature of the first fuel cell engine, a first DCDC temperature of the first fuel cell engine, a second air compressor controller temperature of the second fuel cell engine, a second air compressor temperature of the second fuel cell engine, and a second DCDC temperature of the second fuel cell engine.
Optionally, when the two fuel cell engines are operated, controlling the heat dissipation capacity of the heat dissipation device based on the collected temperatures of the auxiliary systems of the two fuel cell engines, includes:
when any one of the first air compressor controller temperature, the first air compressor temperature, the first DCDC temperature, the second air compressor controller temperature, the second air compressor temperature and the second DCDC temperature reaches a set temperature T0, a fan of the heat dissipation device is started;
when the temperature of the first air compressor controller, the temperature of the first air compressor, the temperature of the first DCDC, the temperature of the second air compressor controller, the temperature of the second air compressor and the temperature of the second DCDC are all lower than a set temperature T1, the fan is turned off;
when the temperature of the first air compressor controller, the temperature of the first air compressor, the temperature of the first DCDC, the temperature of the second air compressor controller, the temperature of the second air compressor and the temperature of the second DCDC reach a set temperature T2, the fan is controlled to work at a first set rotating speed.
Optionally, when the two fuel cell engines are operated, controlling the heat dissipation capacity of the heat dissipation device based on the collected temperatures of the auxiliary systems of the two fuel cell engines comprises:
the rotation speed of the fan is controlled based on the temperature of the temperature sensor.
In one particular example, as shown in figure 2,
step S1: calculating a required electric power W by the load;
step S2: judging whether the required electric power W is larger than the rated power P0 of a single engine, if so, jumping to S3, otherwise, jumping to S7;
and step S3: starting the first fuel cell engine and the second fuel cell engine to make the total output power of the fuel cells equal to the required power W;
and step S4: the air compressor controller temperature, air compressor temperature and DCDC temperature of the first fuel cell engine and the second fuel cell engine are collected.
Step S5: the water pump is made to rotate at a rated speed, and the opening of the electronic thermostat is controlled to be 50, so that the water flows through the auxiliary systems of the two fuel cell engines are equal. When any one of the temperature of the air compressor controllers of the two engines, the temperature of the air compressor and the temperature of the DCDC reaches T0, starting a fan; 6, turning off the fan when the temperature is lower than T1; when any temperature of 6 pieces of the air reaches T2, starting a fan at the maximum rotating speed RPM1; RPM, is the revolution per minute, represents the number of revolutions per minute of the device. The opening degree of the fan between T0 and T2 is linearly increased according to a preset table checked by the maximum value of the 6 temperatures; the preset tables are obtained experimentally. In addition, the fan can be controlled to operate according to the temperature sensor after the auxiliary dispersion, and the opening degree of the fan is increased according to the table look-up of the temperature sensor. The table was obtained experimentally.
Step S6: controlling the temperature of the auxiliary system according to the acquired temperature value, so that the auxiliary system works at the temperature of normal operation again;
step S7: starting the first fuel cell engine or the second fuel cell engine to make the output power equal to the required power, for convenience of description, starting the first fuel cell engine will be taken as an example;
step S8: the air compressor controller temperature, the air compressor temperature and the DCDC temperature of the first fuel cell engine are collected.
Step S9: the water pump is driven to rotate at a rated rotating speed, the opening of the electronic thermostat is controlled to be 0, and the coolant of the auxiliary radiating pipeline flows through the first fuel cell engine uniformly. When any one of the temperature of an air compressor controller of the first fuel cell engine, the temperature of an air compressor and the temperature of DCDC reaches T0, starting a fan; all the temperatures of the 3 temperatures are lower than T1, and the fan is turned off; 3, when any temperature reaches T2, starting a fan at a rotating speed RPM2; the opening degree of the T0-T2 fan is linearly increased according to the maximum value of the 3 temperatures by table look-up, and the table is obtained through experiments; the fan can also be controlled to operate according to the temperature sensor after dispersion, the opening degree of the fan is increased according to the table look-up of the temperature sensor, and the table is obtained through experiments.
Optionally, when the two fuel cell engines work, the opening degree of the electronic thermostat is controlled to enable the cooling liquid of the auxiliary cooling system to flow through the two fuel cell engines at equal flow, water is supplemented and exhausted through the water tank, and the temperature is reduced by controlling the rotating speed of the water pump and the heat dissipating capacity of the heat dissipating device;
when a fuel cell engine works, the opening of the electronic thermostat is controlled to enable the cooling liquid of the auxiliary cooling system to flow through the working fuel cell engine, water is supplemented and air is exhausted through the water tank, and the cooling is carried out by controlling the rotating speed of the water pump and the heat dissipating capacity of the heat dissipating device.
A liquid level sensor is arranged on the water tank, and an exhaust port is arranged at the top of the water tank.
When the two engines are started, the thermostat is always kept at 50 degrees of opening, so that the flow rates of the cooling liquid flowing through the first fuel cell engine and the second fuel cell engine are the same, and the auxiliary system of the engine is not over-heated by mixing cold and hot cooling liquid and controlling the auxiliary water pump and the fan.
The mixing of the cold and hot cooling liquid is to mix the cooling liquid through the water tank, and the cooling liquid output by the fuel cell engine is cooled by the low-temperature cooling liquid in the water tank.
The embodiment also discloses a fuel cell system, and the control method disclosed by the embodiment is used.
The foregoing describes the general principles of the present disclosure in conjunction with specific embodiments, however, it is noted that the advantages, effects, etc. mentioned in the present disclosure are merely examples and are not limiting, and they should not be considered essential to the various embodiments of the present disclosure. Furthermore, the foregoing disclosure of specific details is for the purpose of illustration and description and is not intended to be limiting, since the disclosure is not intended to be limited to the specific details so described.
In the present disclosure, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions, and the block diagrams of devices, apparatuses, devices, systems, and apparatuses herein referred to are used merely as illustrative examples and are not intended to require or imply that the connections, arrangements, configurations, etc. must be made in the manner shown in the block diagrams. These devices, apparatuses, devices, systems may be connected, arranged, configured in any manner, as will be appreciated by those skilled in the art. Words such as "including," "comprising," "having," and the like are open-ended words that mean "including, but not limited to," and are used interchangeably herein. The words "or" and "as used herein mean, and are used interchangeably with, the word" and/or, "unless the context clearly dictates otherwise. The word "such as" is used herein to mean, and is used interchangeably with, the phrase "such as but not limited to".
Also, as used herein, "or" as used in a list of items beginning with "at least one" indicates a separate list, such that, for example, a list of "at least one of a, B, or C" means a or B or C, or AB or AC or BC, or ABC (i.e., a and B and C). Furthermore, the word "exemplary" does not mean that the described example is preferred or better than other examples.
It is also noted that in the systems and methods of the present disclosure, components or steps may be decomposed and/or re-combined. These decompositions and/or recombinations are to be considered equivalents of the present disclosure.
Various changes, substitutions and alterations to the techniques described herein may be made without departing from the techniques of the teachings as defined by the appended claims. Moreover, the scope of the claims of the present disclosure is not limited to the particular aspects of the process, machine, manufacture, composition of matter, means, methods and acts described above. Processes, machines, manufacture, compositions of matter, means, methods, or acts, presently existing or later to be developed that perform substantially the same function or achieve substantially the same result as the corresponding aspects described herein may be utilized. Accordingly, the appended claims are intended to include within their scope such processes, machines, manufacture, compositions of matter, means, methods, or acts.
The previous description of the disclosed aspects is provided to enable any person skilled in the art to make or use the present disclosure. Various modifications to these aspects will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other aspects without departing from the scope of the disclosure. Thus, the present disclosure is not intended to be limited to the aspects shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
The foregoing description has been presented for purposes of illustration and description. Furthermore, this description is not intended to limit embodiments of the disclosure to the form disclosed herein. While a number of example aspects and embodiments have been discussed above, those of skill in the art will recognize certain variations, modifications, alterations, additions and sub-combinations thereof.
Claims (10)
1. A control method of an auxiliary heat dissipation system of a dual-fuel cell engine is characterized in that the auxiliary heat dissipation system comprises an electronic thermostat, a heat dissipation device, a water pump and a temperature sensor, the auxiliary heat dissipation system is connected with at least two fuel cell engines and used for dissipating heat of the auxiliary systems of the at least two fuel cell engines, the output end of the heat dissipation device is communicated with the input end of the electronic thermostat, the water pump is arranged between the heat dissipation device and the electronic thermostat, and the output end of the heat dissipation device is provided with the temperature sensor;
the method comprises the following steps:
when one fuel cell engine works, the water pump is made to rotate at a rated rotating speed, the opening of the electronic thermostat is controlled to enable the cooling liquid of the auxiliary cooling system to cool the working fuel cell engine auxiliary system, and when the working fuel cell engine auxiliary system is cooled, the heat dissipation capacity of the cooling device is controlled through the acquired temperature of the working fuel cell engine auxiliary system;
when the two fuel cell engines work, the water pump is made to rotate at a rated rotating speed, the opening of the electronic thermostat is controlled to enable the cooling liquid of the auxiliary cooling system to cool the two fuel cell engine auxiliary systems simultaneously, and when the two fuel cell engine auxiliary systems are cooled simultaneously, the heat dissipation capacity of the cooling device is controlled based on the collected temperatures of the two fuel cell engine auxiliary systems.
2. The dual fuel cell engine auxiliary cooling system control method according to claim 1, characterized by further comprising:
calculating a required electric power based on the load;
comparing the required electric power with a rated power of the single fuel cell engine;
if the required electric power is larger than the rated power of a single fuel cell engine, starting two fuel cell engines to work;
and if the required electric power is not more than the rated power of the single fuel cell engine, starting the operation of one fuel cell engine.
3. The dual fuel cell engine auxiliary heat dissipation system control method according to claim 1, wherein, when one fuel cell engine is operating, by controlling the amount of heat dissipated by the heat dissipation device or the rotation speed of the water pump based on the acquired temperature of the operating fuel cell engine auxiliary system,
the temperatures collected for the operating fuel cell engine auxiliary system include the air compressor controller temperature of the operating fuel cell engine, the air compressor temperature of the operating fuel cell engine, and the DCDC temperature of the operating fuel cell engine.
4. The dual fuel cell engine auxiliary heat dissipation system control method as claimed in claim 3, wherein the controlling of the heat dissipation amount of the heat dissipation device or the rotation speed of the water pump by collecting the temperature of the fuel cell engine auxiliary system in operation when one fuel cell engine is in operation comprises
When any one of the temperature of the air compressor controller, the temperature of the air compressor and the temperature of the DCDC reaches a set temperature T0, starting a fan of the heat dissipation device;
when the temperature of the air compressor controller, the temperature of the air compressor and the temperature of the DCDC are all lower than the set temperature T1, the fan is turned off;
and when any one of the air compressor controller temperature, the air compressor temperature and the DCDC temperature reaches the set temperature T2, controlling the fan to work at a second set rotating speed.
5. The method for controlling the auxiliary heat dissipation system of a dual fuel cell engine as claimed in claim 1, wherein the controlling of the amount of heat dissipated by the heat dissipation device or the rotational speed of the water pump when one fuel cell engine is operating by collecting the temperature of the auxiliary system of the fuel cell engine based on the operation includes
The temperature of the temperature sensor is acquired, and the rotation speed of the fan is controlled based on the temperature of the temperature sensor.
6. The dual fuel cell engine auxiliary heat dissipation system control method according to claim 1, wherein when two fuel cell engines are operating, the two fuel cell engines are a first fuel cell engine and a second fuel cell engine, respectively, by controlling the amount of heat dissipation of the heat dissipation device based on the acquired temperatures of the two fuel cell engine auxiliary systems;
the collected temperatures of the two fuel cell engines include a first air compressor controller temperature of the first fuel cell engine, a first air compressor temperature of the first fuel cell engine, a first DCDC temperature of the first fuel cell engine, a second air compressor controller temperature of the second fuel cell engine, a second air compressor temperature of the second fuel cell engine, and a second DCDC temperature of the second fuel cell engine.
7. The dual fuel cell engine auxiliary heat dissipation system control method as claimed in claim 6, wherein controlling the amount of heat dissipated by the heat dissipation device based on the collected temperatures of the two fuel cell engine auxiliary systems when the two fuel cell engines are operating comprises:
when any one of the first air compressor controller temperature, the first air compressor temperature, the first DCDC temperature, the second air compressor controller temperature, the second air compressor temperature and the second DCDC temperature reaches a set temperature T0, a fan of the heat dissipation device is started;
when the temperature of the first air compressor controller, the temperature of the first air compressor, the temperature of the first DCDC, the temperature of the second air compressor controller, the temperature of the second air compressor and the temperature of the second DCDC are all lower than a set temperature T1, the fan is turned off;
when the temperature of the first air compressor controller, the temperature of the first air compressor, the temperature of the first DCDC, the temperature of the second air compressor controller, the temperature of the second air compressor and the temperature of the second DCDC reach a set temperature T2, the fan is controlled to work at a first set rotating speed.
8. The dual fuel cell engine auxiliary heat dissipation system control method of claim 6, wherein controlling the amount of heat dissipated by the heat dissipation device based on the acquired temperatures of the two fuel cell engine auxiliary systems when the two fuel cell engines are operating comprises:
the rotation speed of the fan is controlled based on the temperature of the temperature sensor.
9. The method for controlling the auxiliary cooling system of the dual-fuel battery engine as claimed in claim 1, wherein when the two fuel battery engines are operated, the opening degree of the electronic thermostat is controlled to enable the coolant of the auxiliary cooling system to flow through the two fuel battery engines at equal flow, water is supplemented through a water tank for air exhaust, and the temperature is reduced by controlling the rotating speed of a water pump and the heat dissipating capacity of a heat dissipating device;
when a fuel cell engine works, the opening of the electronic thermostat is controlled to enable the cooling liquid of the auxiliary cooling system to flow through the working fuel cell engine, water is supplemented and air is exhausted through the water tank, and the cooling is carried out by controlling the rotating speed of the water pump and the heat dissipating capacity of the heat dissipating device.
10. A fuel cell system characterized by using the control method according to any one of claims 1 to 9.
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| CN202211359914.8A CN115472867A (en) | 2022-11-02 | 2022-11-02 | Control method of auxiliary heat dissipation system of dual-fuel battery engine and fuel battery system |
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| CN202211359914.8A CN115472867A (en) | 2022-11-02 | 2022-11-02 | Control method of auxiliary heat dissipation system of dual-fuel battery engine and fuel battery system |
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| US20130171536A1 (en) * | 2012-01-03 | 2013-07-04 | Air Liquide, Societe Anonyme Pour Etude Et Exploitation Des Procedes Georges Claude | Fuel Cell |
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