CN105514464A - Temperature control system and method of DC-DC boost converter of fuel cell car - Google Patents
Temperature control system and method of DC-DC boost converter of fuel cell car Download PDFInfo
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- CN105514464A CN105514464A CN201610002117.2A CN201610002117A CN105514464A CN 105514464 A CN105514464 A CN 105514464A CN 201610002117 A CN201610002117 A CN 201610002117A CN 105514464 A CN105514464 A CN 105514464A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
- B60L50/70—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by fuel cells
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
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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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/30—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling fuel cells
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
- C01B3/02—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen
- C01B3/32—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air
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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
- H01M8/06—Combination of fuel cells with means for production of reactants or for treatment of residues
- H01M8/0606—Combination of fuel cells with means for production of reactants or for treatment of residues with means for production of gaseous reactants
- H01M8/0612—Combination of fuel cells with means for production of reactants or for treatment of residues with means for production of gaseous reactants from carbon-containing material
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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
- H01M8/06—Combination of fuel cells with means for production of reactants or for treatment of residues
- H01M8/0606—Combination of fuel cells with means for production of reactants or for treatment of residues with means for production of gaseous reactants
- H01M8/0612—Combination of fuel cells with means for production of reactants or for treatment of residues with means for production of gaseous reactants from carbon-containing material
- H01M8/0618—Reforming processes, e.g. autothermal, partial oxidation or steam reforming
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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
- H01M2250/00—Fuel cells for particular applications; Specific features of fuel cell system
- H01M2250/20—Fuel cells in motive systems, e.g. vehicle, ship, plane
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
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- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/40—Application of hydrogen technology to transportation, e.g. using fuel cells
Abstract
The invention discloses a temperature control system and method of a DC-DC boost converter of a fuel cell car. The system comprises a methyl alcohol container, a conveying pump and the DC-DC boost converter, wherein liquid mainly with methyl alcohol is stored in the methyl alcohol container, the conveying pump is used for pumping methyl alcohol liquid in the methyl alcohol container into a hydrogen preparation system through a conveying pipeline pump, the DC-DC boost converter is used for converting low-voltage direct current output by a fuel cell into high-voltage direct current required by an automobile engine, the DC-DC boost converter is provided with a methyl alcohol temperature controller, and methyl alcohol liquid flows through the methyl alcohol temperature controller to control the working temperature of the DC-DC boost converter when pumped by the conveying pump. The system is low in noise, good in cooling effect, low in energy consumption and small in occupied space; heat generated by the DC-DC boost converter can be effectively utilized by the fuel cell car, and it can be avoided that when heat of the DC-DC boost converter is discharged, the working and running of other electronic circuits of the fuel cell car are influenced.
Description
Technical field
The present invention relates to fuel cell car technical field, particularly a kind of DC-DC boost converter temperature-controlling system of fuel cell car and method.
Background technology
At present, most automobile all with gasoline, diesel oil for fuel, not only consume a large amount of petroleum resources, and vehicle exhaust causes serious air pollution.For tackling this resource problem and environmental problem, the exploitation of electric automobile becomes extremely important.Electric automobile refers to vehicle power to be power, drives the vehicle of wheels travel with motor.Electric automobile comprises pure electric automobile, hybrid vehicle and fuel cell car.Fuel cell car refers to and is equipped with the electric automobile of fuel cell as the power supply of acquisition actuating force, and the oxygen generation electrochemical reaction that the fuel cell of fuel cell car is used in hydrogen and air produces electric energy.The electricity that fuel cell produces is generally the direct voltage of 15 ~ 35V, but the electricity required for automobile motor is generally the direct voltage of 200 ~ 750V, therefore, fuel cell car also needs configuration DC-DC boost converter, so that by the high-voltage dc voltage of low-voltage dc voltage boost conversion required for automobile motor of fuel cell.
The DC-DC boost converter of fuel cell car operationally, can distribute amount of heat usually, therefore, controls to seem very crucial to the temperature of DC-DC boost converter.In the prior art, the temperature control equipment of DC-DC boost converter adopts air-cooled radiator usually, but the air-cooled radiator of DC-DC boost converter at least has following defect: the radiator fan noise of one, air-cooled radiator is high, is unfavorable for the noise reduction of fuel cell system; Radiating rate two, due to air is comparatively slow, makes the radiating efficiency of air-cooled radiator lower, when DC-DC boost converter has power to adjust, easily occurs spike temperature, destroy DC-DC boost converter; Three, the radiator fan of air-cooled radiator itself needs electric energy supply just can keep on the go, and consumes energy high; The heat that four, DC-DC boost converter produces is blown away by radiator fan, wastes heat energy; The heat that five, DC-DC boost converter is discharged easily causes adverse effect to automotive interior electronic circuit.
Along with the development of liquid cooling heat radiator technology, liquid cooling heat radiator is also applied to the DC-DC boost converter in fuel cell car gradually.The Chinese patent 200810246572.2(applying date: 2008-12-25, applicant: Tsing-Hua University) disclose a kind of fuel cell city bus cooling circulation system, this system water tank, radiator, booster pump, DC/DC converter, auxiliary DC/DC converter, electric machine controller, motor realize cooling system water route by the resistance to pressure pipe connection of steel wire and connect, and controlled by the booster pump of control system to cooling system, realize waterway circulating, its radiating efficiency is better.
But, cooling recirculation system disclosed in above-mentioned patent 200810246572.2 also has following defect: one, this cooling recirculation system need to arrange water tank, booster pump and radiator, current in booster pump driving water tank are through DC/DC converter and radiator, after DC/DC converter reaches uniform temperature, radiator work (being implied with fan), cooling; So, not only increase equipment cost, occupy larger space, and these equipment itself also need consumes energy just can keep on the go; The heat that two, DC-DC boost converter produces still is taken away by radiator, wastes heat energy; The heat that three, DC-DC boost converter is discharged still is easy to cause adverse effect to automotive interior electronic circuit.
Summary of the invention
The technical problem to be solved in the present invention is for above-mentioned deficiency of the prior art, a kind of DC-DC boost converter temperature-controlling system of fuel cell car is provided, this DC-DC boost converter temperature-controlling system noise is low, good heat dissipation effect, power consumption are low, take up room little, and the heat that fuel cell car can effectively utilize DC-DC boost converter to produce, can not affect other electronic circuit work running of fuel cell car because of the discharge of DC-DC boost converter heat.For this reason, the present invention also will provide a kind of temperature control method of this DC-DC boost converter temperature-controlling system.
For solving above-mentioned first technical problem, technical scheme of the present invention is: a kind of DC-DC boost converter temperature-controlling system of fuel cell car, comprising:
Methanol canister, stores the liquid based on methyl alcohol in it;
Delivery pump, for being pumped to hydrogen generating system by the methanol liquid in methanol canister by conveyance conduit;
DC-DC boost converter, the low-voltage DC for being exported by fuel cell is converted to the high voltage direct current of automobile motor; Described DC-DC boost converter has methyl alcohol thermostat, and described methanol liquid, in the pumping procedure of delivery pump, flows through this methyl alcohol thermostat, with the working temperature of control DC-DC boost converter;
Hydrogen generating system, for hydrogen from methyl alcohol, obtained hydrogen is supplied to fuel cell;
Fuel cell, produce low-voltage DC for the oxygen generation electrochemical reaction in hydrogen and air, this low-voltage DC, after DC-DC boost converter converts high voltage direct current to, is supplied to automobile motor;
And control system, for controlling the work running of described delivery pump, DC-DC boost converter, hydrogen generating system and fuel cell.
Preferably, described DC-DC boost converter temperature-controlling system also comprises threeway and regulates flow divider and three-way converging valve, described threeway regulates the inlet of flow divider to be connected with delivery pump, the methanol liquid of described delivery pump pumping regulates after flow divider through threeway and is divided into two-way fluid, wherein, first via fluid enters three-way converging valve after the methyl alcohol thermostat of DC-DC boost converter, and the second road fluid directly enters three-way converging valve; Two-way fluid is delivered to hydrogen generating system after collaborating in three-way converging valve.Further, described DC-DC boost converter is provided with temperature inductor, and this temperature inductor and control system are electrically connected.
Preferably, described hydrogen generating system comprises heat exchanger and reformer, and described heat exchanger is installed on the conveyance conduit of methanol liquid, and methanol liquid is in heat exchanger, and the high-temperature hydrogen exported with reformer carries out heat exchange, and methanol liquid temperature raises, and hydrogen temperature reduces; Described reformer is provided with reformer chamber, heater and hydrogen purification apparatus, and described heater provides the heat energy of 350-570 DEG C of temperature for reformer chamber; Described reformer chamber is provided with catalyst, in reformer chamber, the reformation hydrogen production reaction of first alcohol and water occurs, obtains the high-temperature gas mixture body based on carbon dioxide and hydrogen; Described reformer chamber is connected by connecting line with hydrogen purification apparatus, and all or part of of connecting line is arranged at reformer chamber, and the high temperature by reformer chamber continues the high-temperature gas mixture body that heating exports from reformer chamber; Described connecting line, as the buffering between reformer chamber and hydrogen purification apparatus, makes the temperature of the high-temperature gas mixture body exported from reformer chamber identical with the temperature of hydrogen purification apparatus or close; Obtain hydrogen from the aerogenesis end of hydrogen purification apparatus, this hydrogen exports fuel cell to after heat exchanger.
Preferably, the heater of described reformer is electric heater or electromagnetic heater or hydrogen fuel chamber.
For solving above-mentioned second technical problem, technical scheme of the present invention is: a kind of temperature control method of DC-DC boost converter temperature-controlling system of fuel cell car, comprises the following steps:
(1) methanol liquid in methanol canister is under the pump action power of delivery pump, flow through the methyl alcohol thermostat of DC-DC boost converter, methanol liquid, in the process flowing through methyl alcohol thermostat, takes away the heat in DC-DC boost converter, and makes methanol liquid temperature increase;
(2) methanol liquid after temperature rising enters hydrogen generating system, and in hydrogen generating system, methanol liquid temperature continues to rise, and first alcohol and water generation reformation hydrogen production reacts, obtained hydrogen, and is supplied to fuel cell;
(3) in fuel cell, the oxygen generation electrochemical reaction in hydrogen and air produces low-voltage DC, and this low-voltage DC, after DC-DC boost converter converts high voltage direct current to, is supplied to automobile motor.
Preferably, the methanol liquid of described delivery pump pumping regulates after flow divider through threeway and is divided into two-way fluid, and wherein, first via fluid enters three-way converging valve after the methyl alcohol thermostat of DC-DC boost converter, and the second road fluid directly enters three-way converging valve; Two-way fluid is delivered to hydrogen generating system after collaborating in three-way converging valve; Control system is according to the temperature of DC-DC boost converter, regulate flow divider control flow check through the methanol liquid flow of methyl alcohol thermostat by threeway, when DC-DC boost conversion actuator temperature is too high, control system controls threeway and regulates flow divider to strengthen the flow of first via fluid, the flow then corresponding minimizing of the second road fluid; When DC-DC boost conversion actuator temperature is on the low side, control system controls threeway and regulates flow divider to reduce the flow of first via fluid, the flow then corresponding increasing of the second road fluid.
Preferably, described DC-DC boost converter set temperature inductor, the temperature signal of DC-DC boost converter is fed back to control system by this temperature inductor in real time, control system is according to this temperature signal, regulate the methanol liquid flow flowing through methyl alcohol thermostat, be in the scope of setting with the temperature of control DC-DC boost converter.
The invention has the beneficial effects as follows: one, DC-DC boost converter of the present invention adopt the heat radiation of methyl alcohol thermostat, and without the need to arranging booster pump and fan in addition, take up room little, noiseless, is conducive to device layout and the noise reduction of whole fuel cell car; Two, the methyl alcohol thermostat of DC-DC boost converter utilizes methanol liquid to take away the heat of DC-DC boost converter generation, without the need to arranging liquid-cooling heat radiation fan in addition, without the need to consume electric power dexterously; After three, methanol liquid takes away the heat that DC-DC boost converter produces, methanol liquid temperature increase can be made, thus the heat that DC-DC boost converter is produced obtains and utilizes cleverly; The heat five, produced due to DC-DC boost converter again obtains utilization, thus makes DC-DC boost converter, can not discharge heat, ensured the job stability of fuel cell car to fuel cell car inside.In addition, in optimal way of the present invention, be provided with threeway and regulate flow divider and three-way converging valve, thus make control system of the present invention can according to the temperature signal of DC-DC boost converter, regulate the methanol liquid flow flowing through methyl alcohol thermostat, be in the scope of setting with the temperature of control DC-DC boost converter, stable, reliable.
Accompanying drawing explanation
Fig. 1 is overall structure block diagram of the present invention.
Fig. 2 is the overall structure block diagram of the present invention one optimal way.
Embodiment
Below in conjunction with accompanying drawing, structural principle of the present invention and operation principle are described in further detail.
As described in Figure 1, the present invention is a kind of DC-DC boost converter temperature-controlling system of fuel cell car, comprising:
Methanol canister 1, stores the liquid based on methyl alcohol in it, be preferably methanol aqueous solution;
Delivery pump 2, for being pumped to hydrogen generating system by the methanol liquid in methanol canister 1 by conveyance conduit;
DC-DC boost converter 3, the low-voltage DC for being exported by fuel cell 5 is converted to the high voltage direct current of automobile motor 7, and this low-voltage DC is generally the direct current of 15 ~ 35V, and this high voltage direct current is generally the direct current of 200 ~ 750V; Described DC-DC boost converter 3 has methyl alcohol thermostat 31, and described methanol liquid, in the pumping procedure of delivery pump 2, flows through this methyl alcohol thermostat 31, with the working temperature of control DC-DC boost converter 3;
Hydrogen generating system, for hydrogen from methyl alcohol, obtained hydrogen is supplied to fuel cell 6;
Fuel cell 6, produces low-voltage DC for the oxygen generation electrochemical reaction in hydrogen and air, the anode at fuel cell: 2H
2→ 4H
++ 4e
-, H
2split into two protons and two electronics, proton is through proton exchange membrane (PEM), and electronics, by positive plate, by external loading, and enters cathode bipolar plate, the negative electrode at fuel cell: O
2+ 4e
-+ 4H
+→ 2H
2o, proton, electronics and O
2recombine to form H
2o; This low-voltage DC, after DC-DC boost converter 3 converts high voltage direct current to, is supplied to automobile motor 7;
And control system (not shown), for controlling the work running of described delivery pump 2, DC-DC boost converter 3, hydrogen generating system and fuel cell 6.
As shown in Figure 2, described DC-DC boost converter temperature-controlling system also comprises threeway and regulates flow divider 8 and three-way converging valve 9, described threeway regulates the inlet of flow divider 8 to be connected with delivery pump 2, the methanol liquid of described delivery pump 2 pumping regulates after flow divider 8 through threeway and is divided into two-way fluid, wherein, first via fluid enters three-way converging valve 9, second road fluid and directly enters three-way converging valve 9 after the methyl alcohol thermostat 31 of DC-DC boost converter 3; Two-way fluid is delivered to hydrogen generating system after collaborating in three-way converging valve 9, and by regulating the control of flow divider 8 to threeway, the temperature of the two-sided DC-DC of making boost converter is in the scope of setting, stable, reliable.Further, described DC-DC boost converter 3 is provided with temperature inductor (not shown), and this temperature inductor and control system are electrically connected, and control system can be made like this to monitor the temperature of DC-DC boost converter 3 in real time.
In technique scheme, described hydrogen generating system comprises heat exchanger 5 and reformer 4, and described heat exchanger 5 is installed on the conveyance conduit of methanol liquid, methanol liquid is in heat exchanger 5, the high-temperature hydrogen exported with reformer 4 carries out heat exchange, and methanol liquid temperature raises, and hydrogen temperature reduces; Described reformer 4 is provided with reformer chamber 41, heater 42 and hydrogen purification apparatus 43, and described heater 42 provides the heat energy of 350-570 DEG C of temperature for reformer chamber 41; Catalyst is provided with in described reformer chamber 41, under the effect of catalyst, there is the transformationreation of methanol decomposition reaction and carbon monoxide, generate hydrogen and carbon dioxide, this is the gas solid catalytic reaction system of component more than, many reactions, and reactional equation is: (1) CH
3oH → CO+2H
2, (2) H
2o+CO → CO
2+ H
2, (3) CH
3oH+H
2o → CO
2+ 3H
2, obtain the high-temperature gas mixture body based on carbon dioxide and hydrogen; Described reformer chamber 41 is connected by connecting line with hydrogen purification apparatus 43, and all or part of of connecting line is arranged in reformer chamber 41, continues the high-temperature gas mixture body of heating from reformer chamber 41 output by the high temperature in reformer chamber 41; Described connecting line, as the buffering between reformer chamber 41 and hydrogen purification apparatus 43, makes the temperature of the high-temperature gas mixture body exported from reformer chamber 41 identical with the temperature of hydrogen purification apparatus 43 or close; Obtain hydrogen from the aerogenesis end of hydrogen purification apparatus 43, this hydrogen exports fuel cell 6 to after heat exchanger 5.
In technique scheme, the heater 42 of described reformer 4 can adopt electric heater or electromagnetic heater or hydrogen fuel chamber, and be preferable over employing electromagnetic heater, concrete technology contents is with reference to Chinese patent application 201510754381.7.
The temperature control method of the DC-DC boost converter temperature-controlling system of above-mentioned fuel cell car, comprises the following steps:
(1) methanol liquid in methanol canister is under the pump action power of delivery pump, flow through the methyl alcohol thermostat of DC-DC boost converter, methanol liquid, in the process flowing through methyl alcohol thermostat, takes away the heat in DC-DC boost converter, and makes methanol liquid temperature increase;
(2) methanol liquid after temperature rising enters hydrogen generating system, and in hydrogen generating system, methanol liquid temperature continues to rise, and first alcohol and water generation reformation hydrogen production reacts, obtained hydrogen, and is supplied to fuel cell;
(3) in fuel cell, the oxygen generation electrochemical reaction in hydrogen and air produces low-voltage DC, and this low-voltage DC, after DC-DC boost converter converts high voltage direct current to, is supplied to automobile motor.
As to optimal way of the present invention, the methanol liquid of described delivery pump pumping regulates after flow divider through threeway and is divided into two-way fluid, wherein, first via fluid enters three-way converging valve after the methyl alcohol thermostat of DC-DC boost converter, and the second road fluid directly enters three-way converging valve; Two-way fluid is delivered to hydrogen generating system after collaborating in three-way converging valve; Control system is according to the temperature of DC-DC boost converter, regulate flow divider control flow check through the methanol liquid flow of methyl alcohol thermostat by threeway, when DC-DC boost conversion actuator temperature is too high, control system controls threeway and regulates flow divider to strengthen the flow of first via fluid, the flow then corresponding minimizing of the second road fluid; When DC-DC boost conversion actuator temperature is on the low side, control system controls threeway and regulates flow divider to reduce the flow of first via fluid, the flow then corresponding increasing of the second road fluid.
Further, described DC-DC boost converter set temperature inductor, the temperature signal of DC-DC boost converter is fed back to control system by this temperature inductor in real time, control system is according to this temperature signal, regulate the methanol liquid flow flowing through methyl alcohol thermostat, be in the scope of setting with the temperature of control DC-DC boost converter.
The above is only better embodiment of the present invention, every above execution mode is done according to technical scheme of the present invention any trickle amendment, equivalent variations and modification, all belong in the scope of technical solution of the present invention.
Claims (8)
1. the DC-DC boost converter temperature-controlling system of fuel cell car, is characterized in that, comprising:
Methanol canister, stores the liquid based on methyl alcohol in it;
Delivery pump, for being pumped to hydrogen generating system by the methanol liquid in methanol canister by conveyance conduit;
DC-DC boost converter, the low-voltage DC for being exported by fuel cell is converted to the high voltage direct current of automobile motor; Described DC-DC boost converter has methyl alcohol thermostat, and described methanol liquid, in the pumping procedure of delivery pump, flows through this methyl alcohol thermostat, with the working temperature of control DC-DC boost converter;
Hydrogen generating system, for hydrogen from methyl alcohol, obtained hydrogen is supplied to fuel cell;
Fuel cell, produce low-voltage DC for the oxygen generation electrochemical reaction in hydrogen and air, this low-voltage DC, after DC-DC boost converter converts high voltage direct current to, is supplied to automobile motor;
And control system, for controlling the work running of described delivery pump, DC-DC boost converter, hydrogen generating system and fuel cell.
2. DC-DC boost converter temperature-controlling system according to claim 1, it is characterized in that: described DC-DC boost converter temperature-controlling system also comprises threeway and regulates flow divider and three-way converging valve, described threeway regulates the inlet of flow divider to be connected with delivery pump, the methanol liquid of described delivery pump pumping regulates after flow divider through threeway and is divided into two-way fluid, wherein, first via fluid enters three-way converging valve after the methyl alcohol thermostat of DC-DC boost converter, and the second road fluid directly enters three-way converging valve; Two-way fluid is delivered to hydrogen generating system after collaborating in three-way converging valve.
3. DC-DC boost converter temperature-controlling system according to claim 2, it is characterized in that: described DC-DC boost converter is provided with temperature inductor, this temperature inductor and control system are electrically connected.
4. DC-DC boost converter temperature-controlling system according to claim 1, it is characterized in that: described hydrogen generating system comprises heat exchanger and reformer, described heat exchanger is installed on the conveyance conduit of methanol liquid, methanol liquid is in heat exchanger, the high-temperature hydrogen exported with reformer carries out heat exchange, methanol liquid temperature raises, and hydrogen temperature reduces; Described reformer is provided with reformer chamber, heater and hydrogen purification apparatus, and described heater provides the heat energy of 350-570 DEG C of temperature for reformer chamber; Described reformer chamber is provided with catalyst, in reformer chamber, the reformation hydrogen production reaction of first alcohol and water occurs, obtains the high-temperature gas mixture body based on carbon dioxide and hydrogen; Described reformer chamber is connected by connecting line with hydrogen purification apparatus, and all or part of of connecting line is arranged at reformer chamber, and the high temperature by reformer chamber continues the high-temperature gas mixture body that heating exports from reformer chamber; Described connecting line, as the buffering between reformer chamber and hydrogen purification apparatus, makes the temperature of the high-temperature gas mixture body exported from reformer chamber identical with the temperature of hydrogen purification apparatus or close; Obtain hydrogen from the aerogenesis end of hydrogen purification apparatus, this hydrogen exports fuel cell to after heat exchanger.
5. DC-DC boost converter temperature-controlling system according to claim 4, is characterized in that: the heater of described reformer is electric heater or electromagnetic heater or hydrogen fuel chamber.
6. the temperature control method of the DC-DC boost converter temperature-controlling system of fuel cell car described in any one in claim 1-5, is characterized in that, comprise the following steps:
(1) methanol liquid in methanol canister is under the pump action power of delivery pump, flow through the methyl alcohol thermostat of DC-DC boost converter, methanol liquid, in the process flowing through methyl alcohol thermostat, takes away the heat in DC-DC boost converter, and makes methanol liquid temperature increase;
(2) methanol liquid after temperature rising enters hydrogen generating system, and in hydrogen generating system, methanol liquid temperature continues to rise, and first alcohol and water generation reformation hydrogen production reacts, obtained hydrogen, and is supplied to fuel cell;
(3) in fuel cell, the oxygen generation electrochemical reaction in hydrogen and air produces low-voltage DC, and this low-voltage DC, after DC-DC boost converter converts high voltage direct current to, is supplied to automobile motor.
7. the temperature control method of DC-DC boost converter temperature-controlling system according to claim 6, it is characterized in that: the methanol liquid of described delivery pump pumping regulates after flow divider through threeway and is divided into two-way fluid, wherein, first via fluid enters three-way converging valve after the methyl alcohol thermostat of DC-DC boost converter, and the second road fluid directly enters three-way converging valve; Two-way fluid is delivered to hydrogen generating system after collaborating in three-way converging valve; Control system is according to the temperature of DC-DC boost converter, regulate flow divider control flow check through the methanol liquid flow of methyl alcohol thermostat by threeway, when DC-DC boost conversion actuator temperature is too high, control system controls threeway and regulates flow divider to strengthen the flow of first via fluid, the flow then corresponding minimizing of the second road fluid; When DC-DC boost conversion actuator temperature is on the low side, control system controls threeway and regulates flow divider to reduce the flow of first via fluid, the flow then corresponding increasing of the second road fluid.
8. the temperature control method of DC-DC boost converter temperature-controlling system according to claim 7, it is characterized in that: described DC-DC boost converter set temperature inductor, the temperature signal of DC-DC boost converter is fed back to control system by this temperature inductor in real time, control system is according to this temperature signal, regulate the methanol liquid flow flowing through methyl alcohol thermostat, be in the scope of setting with the temperature of control DC-DC boost converter.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610002117.2A CN105514464A (en) | 2016-01-06 | 2016-01-06 | Temperature control system and method of DC-DC boost converter of fuel cell car |
| PCT/CN2016/085894 WO2017117918A1 (en) | 2016-01-06 | 2016-06-15 | Temperature control system and method for dc-dc boost converter of fuel cell automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610002117.2A CN105514464A (en) | 2016-01-06 | 2016-01-06 | Temperature control system and method of DC-DC boost converter of fuel cell car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105514464A true CN105514464A (en) | 2016-04-20 |
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| CN201610002117.2A Pending CN105514464A (en) | 2016-01-06 | 2016-01-06 | Temperature control system and method of DC-DC boost converter of fuel cell car |
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| Country | Link |
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| CN (1) | CN105514464A (en) |
| WO (1) | WO2017117918A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105977510A (en) * | 2016-07-07 | 2016-09-28 | 苏州氢洁电源科技有限公司 | Vehicle-mounted methanol and water automatic blending system |
| WO2017117918A1 (en) * | 2016-01-06 | 2017-07-13 | 广东合即得能源科技有限公司 | Temperature control system and method for dc-dc boost converter of fuel cell automobile |
| CN109204013A (en) * | 2017-06-29 | 2019-01-15 | 丰田自动车株式会社 | The control method of fuel cell system and fuel cell system |
| CN111564884A (en) * | 2020-05-28 | 2020-08-21 | 重庆宗申氢能源动力科技有限公司 | Distributed power generation system and control method thereof |
| CN111573622A (en) * | 2020-05-25 | 2020-08-25 | 广东能创科技有限公司 | Thermoelectric generation self-powered methanol-water reforming hydrogen production system |
| CN111908423A (en) * | 2020-05-25 | 2020-11-10 | 广东能创科技有限公司 | Thermoelectric power generation coupling methanol-water reforming hydrogen production power generation system |
| CN114105096A (en) * | 2021-12-07 | 2022-03-01 | 湖南大学 | Methanol-water reforming hydrogen production system and hydrogen production method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2017117918A1 (en) * | 2016-01-06 | 2017-07-13 | 广东合即得能源科技有限公司 | Temperature control system and method for dc-dc boost converter of fuel cell automobile |
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| CN109204013A (en) * | 2017-06-29 | 2019-01-15 | 丰田自动车株式会社 | The control method of fuel cell system and fuel cell system |
| CN109204013B (en) * | 2017-06-29 | 2021-10-01 | 丰田自动车株式会社 | Fuel cell system and control method for fuel cell system |
| CN111573622A (en) * | 2020-05-25 | 2020-08-25 | 广东能创科技有限公司 | Thermoelectric generation self-powered methanol-water reforming hydrogen production system |
| CN111908423A (en) * | 2020-05-25 | 2020-11-10 | 广东能创科技有限公司 | Thermoelectric power generation coupling methanol-water reforming hydrogen production power generation system |
| CN111564884A (en) * | 2020-05-28 | 2020-08-21 | 重庆宗申氢能源动力科技有限公司 | Distributed power generation system and control method thereof |
| CN111564884B (en) * | 2020-05-28 | 2023-03-31 | 重庆宗申氢能源动力科技有限公司 | Distributed power generation system and control method thereof |
| CN114105096A (en) * | 2021-12-07 | 2022-03-01 | 湖南大学 | Methanol-water reforming hydrogen production system and hydrogen production method thereof |
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| WO2017117918A1 (en) | 2017-07-13 |
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