CN111952639B - Quick start high-temperature fuel cell and control method - Google Patents
Quick start high-temperature fuel cell and control method Download PDFInfo
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- CN111952639B CN111952639B CN202010849386.9A CN202010849386A CN111952639B CN 111952639 B CN111952639 B CN 111952639B CN 202010849386 A CN202010849386 A CN 202010849386A CN 111952639 B CN111952639 B CN 111952639B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04223—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids during start-up or shut-down; Depolarisation or activation, e.g. purging; Means for short-circuiting defective fuel cells
- H01M8/04268—Heating of fuel cells during the start-up of the fuel cells
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04007—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
- H01M8/04037—Electrical heating
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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
- H01M8/043—Processes for controlling fuel cells or fuel cell systems applied during specific periods
- H01M8/04302—Processes for controlling fuel cells or fuel cell systems applied during specific periods applied during start-up
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
- H01M8/2465—Details of groupings of fuel cells
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
- H01M8/249—Grouping of fuel cells, e.g. stacking of fuel cells comprising two or more groupings of fuel cells, e.g. modular assemblies
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- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
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Abstract
The invention relates to a quick start high-temperature fuel cell and a control method thereof.A power storage cell supplies power to an electric heater at the initial stage of the starting process of a power generation module, the electric heater preheats an auxiliary electric pile, fuel is introduced to start power generation after the auxiliary electric pile is preheated to a set temperature, the auxiliary electric pile supplies power to the electric heater to preheat a main electric pile, and high-temperature tail gas generated in the power generation process is introduced to the main electric pile to accelerate preheating. The invention adds the energy storage battery pack to improve the quick response capability of the power generation module; a small-specification auxiliary pile is additionally arranged, the capacity requirement of an energy storage battery for starting is reduced, and the quick starting of the power supply capacity of part of the power generation unit is realized; and a double heating mode is additionally arranged, the auxiliary electric pile is utilized to efficiently supply power to the electric heater, and the heat energy generated in the power generation process is matched with the main electric pile to preheat the main electric pile, so that the starting process of the main electric pile of the heat box is accelerated.
Description
Technical Field
The invention relates to the technical field of high-temperature fuel cells, in particular to a quick-start high-temperature fuel cell and a control method.
Background
The Solid Oxide Fuel Cell (SOFC) is a clean and efficient power generation device, and due to the characteristics that the high temperature and the power generation efficiency are not limited by the scale of the SOFC, the application of the SOFC to distributed power generation, a mobile power station or a power system can greatly improve the energy utilization efficiency. At present, the scale of distributed power generation, mobile power stations or power systems mainly comprising SOFCs is between hundreds of watts and thousands of watts, and the energy utilization mode directly facing end users promotes efficient and clean utilization of fossil energy and simultaneously generates huge social and economic benefits. The SOFC is different from other types of fuel cell power generation modes, has higher fuel adaptability and can directly use hydrocarbon fuels such as natural gas, methanol and the like. In recent years, the demand for high-power SOFC power generation units is becoming more urgent, and the problem of slow start-up process is becoming more prominent.
In order to accelerate the starting speed of the SOFC galvanic pile, the existing system mostly adopts a pure electric heating mode: under the off-grid state, the high-power energy storage battery is arranged, the electric heater is used for preheating the system, but along with the increase of the power generation of the SOFC stack, the capacity of the energy storage battery required to be arranged also can be rapidly increased, the manufacturing cost of the system and the whole equipment loading are greatly improved, and the popularization and the application of the solid oxide fuel cell technology are limited.
How to realize the rapid start of the SOFC on the premise of not using a high-power energy storage battery is a technical problem to be solved urgently in the field.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a quick-start high-temperature fuel cell power generation unit which adopts the combination of an energy storage cell and an auxiliary electric pile to realize the quick start and response of partial power supply capacity; the electric heating and the high-temperature tail gas recycling are combined, the preheating of the main electric reactor is accelerated, and the starting speed is increased.
In order to achieve the above object, the present invention provides a fast start high temperature fuel cell, which comprises an energy storage cell, an electric heater, an auxiliary stack and a main stack;
the energy storage battery supplies power to the electric heater when being started, and the main electric pile supplies power to charge after the main electric pile works;
the electric heater is powered by an energy storage battery when being started to preheat the auxiliary electric pile; after the auxiliary electric pile works normally, the auxiliary electric pile supplies power to the electric heater, and the main electric pile is preheated to be started;
the auxiliary electric pile and the main electric pile are formed by stacking a plurality of high-temperature fuel cells, and the power generation power of the auxiliary electric pile is smaller than that of the main electric pile.
The electric heater is controlled to be powered by an energy storage battery when being started, and the electric heater is controlled to preheat the auxiliary electric stack; after the output power of the auxiliary electric pile meets the voltage threshold requirement, the main control module controls the auxiliary electric pile to supply power to the electric heater, and controls the electric heater to be switched to preheat the main electric pile.
Further, the energy storage battery can provide power for the external device under the control of the main control module.
Further, the device also comprises a first valve, a second valve, a first thermocouple and a second thermocouple;
the first thermocouple detects the temperature of the main electric pile and sends the temperature to the main control module; the second thermocouple detects the temperature of the auxiliary galvanic pile and sends the temperature to the main control module;
in the starting process, after the temperature of the auxiliary electric pile reaches a set threshold value, the first valve is controlled to be opened, fuel gas is provided for the auxiliary electric pile, and generated tail gas enters the main electric pile to heat the main electric pile; and when the temperature of the main electric pile reaches a set threshold value, closing the first valve and opening the second valve to supply fuel gas to the main electric pile.
Further, when the power supply power of the main electric pile meets the load requirement, the main control module controls to close the power supply of the auxiliary electric pile, and the power supply power of the main electric pile is controlled by adjusting the opening of the second valve; when the main electric pile power supply power is smaller than the load requirement and the load requirement is larger than an auxiliary electric pile starting threshold, a main control module controls to start the auxiliary electric pile and the main electric pile to supply power together; when the power supply power of the main electric pile is smaller than the load requirement and the load requirement is larger than the starting threshold value of the energy storage battery, the main control module controls the auxiliary electric pile, the energy storage battery and the main electric pile to supply power together.
Furthermore, the electric heater comprises a heating coil sleeved outside the auxiliary electric pile and a heating coil sleeved outside the main electric pile, wherein anode tail gas of the auxiliary electric pile enters the anode of the main electric pile, preheats fuel introduced into the main electric pile, and is mixed with the fuel introduced into the main electric pile;
and the cathode tail gas of the auxiliary electric pile enters the cathode of the main electric pile, preheats the air entering the main electric pile, and is mixed with the introduced air of the main electric pile.
Further, the ratio of the generated power of the auxiliary stack to the generated power of the main stack is: 1: 3-1: 10.
another aspect of the present invention provides a control method for rapidly starting a high temperature fuel cell, including:
controlling the energy storage battery to supply power to the electric heater, wherein the electric heater preheats the auxiliary electric stack;
after the auxiliary galvanic pile is preheated to a set temperature, fuel is introduced, and the auxiliary galvanic pile supplies power to the electric heater;
the electric heater is switched to preheat the main electric pile, and tail gas of the auxiliary electric pile is introduced into the main electric pile to assist in preheating the main electric pile; and when the main galvanic pile is preheated to the set temperature, fuel is introduced, the main galvanic pile outputs electric energy, the fuel introduction of the auxiliary galvanic pile is stopped, and the electric heater is turned off.
Further, when the main electric pile power supply power meets the load requirement, the main electric pile power supply is controlled; when the main electric pile power supply power is smaller than a load requirement and the load requirement is larger than an auxiliary electric pile starting threshold, controlling the auxiliary electric pile and the main electric pile to supply power together; and when the main electric pile power supply power is smaller than the load requirement and the load requirement is larger than the energy storage battery starting threshold, controlling the auxiliary electric pile, the energy storage battery and the main electric pile to supply power together.
Further, when emergency power output is required, the energy storage battery can provide power for external equipment; and when the voltage of the energy storage battery is lower than a set threshold value, controlling the main electric pile to charge the energy storage battery.
The technical scheme of the invention has the following beneficial technical effects:
(1) the energy storage battery pack is additionally arranged, the heating and power supply requirements of the small-specification auxiliary electric pile are only required to be met, a high-power energy storage battery is not required, and the quick response capability of the power generation module is improved;
(2) according to the invention, the small-specification auxiliary electric pile is additionally arranged, the capacity requirement of the energy storage battery for starting is reduced, and the quick starting of the power supply capacity of part of the power generation unit is realized;
(3) the double-heating mode is added, the auxiliary electric pile is used for efficiently supplying power to the electric heater, and the main electric pile is preheated while heat energy generated in the power generation process is matched, so that the starting process of the main electric pile of the power generation module is accelerated.
(4) The auxiliary electric pile with small specification is adopted, so that the requirement for starting heat is reduced, the size of the energy storage battery is greatly reduced, and the size of the high-temperature fuel battery is smaller.
Drawings
FIG. 1 is a schematic diagram of a rapid start high temperature fuel cell power generation unit;
FIG. 2 is a flow chart of a rapid start-up of a high temperature fuel cell power generation unit;
FIG. 3 is a schematic view of an electric heater;
fig. 4 is a schematic diagram of auxiliary stack tail gas entering the main stack.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
The invention provides a quick-start high-temperature fuel cell, which is combined with a figure 1 and comprises an energy storage cell, an electric heater, an auxiliary electric stack, a main electric stack and a main control module.
1. Energy storage battery
The energy storage battery 4 is an initial power supply device for starting the power generation module, mainly supplies power to the electric heater 8, and also can be used as an emergency power supply to supply power to external equipment through the auxiliary power supply 12. The power generation unit starts, the first valve 2 and the second valve 3 are in a closed state, the auxiliary electric pile 9 and the main electric pile 6 are in a room temperature state, the energy storage battery 4 supplies power to the electric heater 8, and heat generated by the electric heater is used for preheating the 1kW auxiliary electric pile 9. The auxiliary electric pile has smaller specification, so the power requirement on the energy storage battery is lower, and the size of the energy storage battery is greatly reduced.
2. Electric heater
The electric heater 8 is one of the main preheating devices of the power generation unit, the energy storage battery 4 supplies power to preheat the auxiliary electric pile 9 at the initial starting stage, after the temperature displayed by the first thermocouple 7 reaches the preset working temperature, the auxiliary electric pile 9 enters a normal working state, the power supply line of the energy storage battery is disconnected, the auxiliary electric pile 9 supplies power to the electric heater 8, and the main electric pile 6 starts to be preheated. After the electric heater 8 preheats the auxiliary galvanic pile 9 until the first thermocouple 7 shows that the temperature is 700 ℃, the first opening valve 2 is automatically opened, fuel gas is introduced into the auxiliary galvanic pile 9, the auxiliary galvanic pile 9 starts to work normally, and power is generated through electrochemical reaction. At this time, the circuit between the energy storage battery 4 and the electric heater 8 is cut off, and the auxiliary electric stack 9 starts to supply power to the electric heater 8.
Referring to fig. 3, the electric heater includes a heating coil 13 disposed outside the auxiliary stack and a heating coil 14 disposed outside the main stack, and controls the heating switching.
Referring to fig. 4, anode exhaust from the auxiliary stack enters the anode of the main stack, preheats the fuel introduced into the main stack, and mixes with the fuel introduced into the main stack. And the cathode tail gas of the auxiliary electric pile enters the cathode of the main electric pile, preheats the air entering the main electric pile and is mixed with the introduced air of the main electric pile.
3. Auxiliary electric pile
The auxiliary electric pile 9 is formed by stacking one or more high-temperature fuel cells, is heated by an electric heater, opens the first valve 2 after the temperature displayed by the first thermocouple 7 reaches a preset working temperature, introduces fuel gas, generates electric power through electrochemical reaction, and generates a large amount of high-temperature tail gas through reaction.
In one embodiment, the 1kW auxiliary stack 9 operates at a high temperature (700 ℃) to convert chemical energy of fuel into electric energy through electrochemical reaction, the primary power generation efficiency can reach 60%, and a large amount of heat is released at the same time. After the 1kW auxiliary electric pile 9 enters a normal working state, namely the temperature displayed by the first thermocouple 2 is 700 ℃, the generated power is used for supplying the electric heater 8 to continue working, and at the moment, the heat generated by the electric heater 8 is used for heating the main electric pile 6; high-temperature tail gas generated by the auxiliary electric pile 9 is introduced into the main electric pile 6 and preheats the main electric pile 6 together with the electric heater.
4. Main electric pile
The main electric pile 6 is formed by stacking a plurality of high-temperature fuel cells, the power generation power is 3-10 times of that of the auxiliary electric pile 9, and the required preheating and starting time is long. High-temperature tail gas generated by electrochemical reaction of the auxiliary electric pile 9 is introduced into the main electric pile 6 and used for preheating the main electric pile 6, and meanwhile, the auxiliary electric pile 9 supplies power to the electric heater 8 to heat the main electric pile 6 together; after the temperature displayed by the second thermocouple 10 reaches the preset temperature of the main electric pile, opening the second valve 3 to introduce fuel gas, and enabling the main electric pile 6 to enter a normal working state; the main electric pile 6 entering normal operation can charge the energy storage battery 4 or output electric energy outwards through the main power supply 11, and the auxiliary electric pile 9 can enter a standby state according to the requirement of external loads.
In one embodiment, a 5kW main power stack 6 operates at high temperature (700 ℃) and is preheated to operating temperature. Through the common heating of the high-temperature tail gas generated in the power generation process of the 1kW auxiliary electric pile 9 and the electric heater 8, after the 5kW main electric pile 6 is preheated to 700 ℃ displayed by the second thermocouple 10, the valve 2 is automatically opened, fuel gas is introduced to start working, and at the moment, the main electric pile 6 can charge the energy storage battery 2 and output electric energy outwards through the power supply 11.
5. Main control module
The main control module realizes the starting control and the power supply control of the quick starting high-temperature fuel cell.
The first thermocouple 7 detects the temperature of the main stack 6 and transmits the same to the main control module, and the second thermocouple 10 detects the temperature of the auxiliary stack 9 and transmits the same to the main control module.
The main control module controls the electric heater to be powered by the energy storage battery when the electric heater is started, and controls the electric heater to preheat the auxiliary electric pile; after the output power of the auxiliary electric pile meets the voltage threshold requirement, the main control module controls the auxiliary electric pile to supply power to the electric heater, and controls the electric heater to be switched to preheat the main electric pile.
When the power supply power of the main electric pile meets the load requirement, the main control module controls to close the power supply of the auxiliary electric pile, and the power supply power of the main electric pile is controlled by adjusting the opening of the second valve; when the power supply power of the main electric pile is smaller than the load requirement and the load requirement is larger than the auxiliary electric pile starting threshold, the main control module controls the auxiliary electric pile to be started to supply power with the main electric pile; when the power supply power of the main electric pile is smaller than the load requirement and the load requirement is larger than the starting threshold value of the energy storage battery, the main control module controls the auxiliary electric pile, the energy storage battery and the main electric pile to supply power together. The auxiliary electric pile opening threshold value is smaller than the energy storage battery opening threshold value.
In one embodiment, during the starting process, the main control module controls the electric heater to be powered by the energy storage battery 4 when the electric heater is started, and controls the electric heater 8 to preheat the auxiliary electric stack 9; when the temperature of the auxiliary electric pile 9 reaches 700 ℃, the first valve 2 is controlled to be opened to supply fuel gas to the auxiliary electric pile 9, and the generated tail gas assists in preheating the main electric pile 6. The main control module controls the auxiliary electric pile 9 to supply power to the electric heater 8, the electric heater 8 preheats the main electric pile 6, when the temperature of the main electric pile 6 reaches 700 ℃, the first valve 2 is closed, the second valve 3 is opened, fuel gas is supplied to the main electric pile 6, fuel is stopped to be introduced into the auxiliary electric pile 9, and the electric heater 8 is closed.
In one embodiment, if the external load demand is less than 5kW, the main control module adjusts the opening of the first valve 2 to adjust the output power of the main cell stack 6, and the 1kW auxiliary cell stack 4 enters a standby state; and if the external load is more than 5kW and less than or equal to 6kW, the auxiliary electric pile 9 is controlled to be restarted and transmits electric power to the outside together with the main electric pile 6. And if the external load is more than 6kW, the energy storage battery, the auxiliary electric pile and the main electric pile supply power together.
Another aspect of the present invention provides a method for controlling a high temperature fuel cell, including the steps of:
referring to fig. 2, the energy storage battery 4 is controlled to supply power to the electric heater 8, and the electric heater 8 preheats the auxiliary electric stack 9; after the auxiliary electric pile 9 is preheated to a set temperature, the first valve 2 is opened to introduce fuel, and the auxiliary electric pile 9 supplies power to the electric heater 8; the electric heater 8 is switched to preheat the main galvanic pile 6, and tail gas of the auxiliary galvanic pile 9 is introduced into the main galvanic pile 6 to assist in preheating the main galvanic pile 6; when the main electric pile 6 is preheated to the set temperature, the second valve 3 is opened to feed fuel, the main electric pile outputs electric energy, the first valve 2 is closed, the auxiliary electric pile 9 is stopped to feed fuel, and the electric heater 8 is closed.
Further, the control flow further comprises: when the power supply power of the main electric pile 6 meets the load requirement, controlling the main electric pile 6 to supply power; when the power supply power of the main electric pile 6 is smaller than the load requirement, the auxiliary electric pile 9 is filled with fuel to control the power supply output of the auxiliary electric pile.
Further, the control flow further comprises: the energy storage battery 4 can provide power to the external device when emergency power output is required. And when the voltage of the energy storage battery 4 is lower than a set threshold value, controlling the main electric pile 6 to charge the energy storage battery 4.
In summary, the present invention relates to a fast start high temperature fuel cell and a control method thereof, wherein the fast start of the high temperature fuel cell is realized by adopting the energy storage cell 4 to respond fast, the auxiliary stack 9 to start fast, and the electric heater 8 and the auxiliary stack 9 to heat fast, and the response speed is millisecond. The power generation module starts the initial stage, energy storage battery 4 is the power supply of electric heater 8, electric heater 8 preheats auxiliary galvanic pile 9, treat auxiliary galvanic pile 9 and preheat and open first valve 2 behind the settlement temperature and let in fuel and begin the electricity generation, at this moment, auxiliary galvanic pile 9 replaces energy storage battery 4 and supplies power for electric heater 8, electric heater 8 begins to preheat main galvanic pile 6, the high temperature tail gas that auxiliary galvanic pile 9 power generation process produced leads to main galvanic pile 6 and preheats the process with higher speed, combine electric heater 8 and 9 high temperature tail gas of auxiliary galvanic pile, realize that power generation module main galvanic pile 6 high efficiency preheats and quick start. The invention adds the energy storage battery pack to improve the quick response capability of the power generation module; a small-specification auxiliary pile is additionally arranged, the capacity requirement of an energy storage battery for starting is reduced, and the quick starting of the power supply capacity of part of the power generation unit is realized; and a double heating mode is additionally arranged, the auxiliary electric pile is utilized to efficiently supply power to the electric heater, and the heat energy generated in the power generation process is matched with the main electric pile to preheat the main electric pile, so that the starting process of the main electric pile of the heat box is accelerated.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.
Claims (7)
1. A quick start high temperature fuel cell is characterized by comprising an energy storage cell, an electric heater, an auxiliary electric pile and a main electric pile;
the energy storage battery supplies power to the electric heater when being started, and the main electric pile supplies power to charge after the main electric pile works;
the electric heater is powered by an energy storage battery when being started to preheat the auxiliary electric pile; after the auxiliary electric pile works normally, the auxiliary electric pile supplies power to the electric heater, and the main electric pile is preheated to be started;
the auxiliary electric pile and the main electric pile are formed by stacking a plurality of high-temperature fuel cells, and the power generation power of the auxiliary electric pile is smaller than that of the main electric pile;
the main control module is used for controlling the electric heater to be powered by an energy storage battery when the electric heater is started, and controlling the electric heater to preheat the auxiliary electric pile; after the output power of the auxiliary electric pile meets the voltage threshold requirement, the main control module controls the auxiliary electric pile to supply power to the electric heater and controls the electric heater to be switched to preheat the main electric pile;
the energy storage battery can provide power for external equipment under the control of the main control module;
when the power supply power of the main electric pile meets the load requirement, the main control module controls to close the power supply of the auxiliary electric pile;
when the main electric pile power supply power is smaller than the load requirement and the load requirement is larger than an auxiliary electric pile starting threshold, a main control module controls to start the auxiliary electric pile and the main electric pile to supply power together;
the electric heater comprises a heating coil sleeved outside the auxiliary electric pile and a heating coil sleeved outside the main electric pile, and anode tail gas of the auxiliary electric pile enters the anode of the main electric pile to preheat the main electric pile;
and the cathode tail gas of the auxiliary electric pile enters the cathode of the main electric pile to preheat the cathode of the main electric pile.
2. The rapid start high temperature fuel cell according to claim 1, further comprising a first valve, a second valve, a first thermocouple, and a second thermocouple;
the first thermocouple detects the temperature of the main electric pile and sends the temperature to the main control module; the second thermocouple detects the temperature of the auxiliary galvanic pile and sends the temperature to the main control module;
in the starting process, after the temperature of the auxiliary electric pile reaches a set threshold value, the first valve is controlled to be opened, fuel gas is provided for the auxiliary electric pile, and generated tail gas enters the main electric pile to heat the main electric pile; and when the temperature of the main electric pile reaches a set threshold value, closing the first valve and opening the second valve to supply fuel gas to the main electric pile.
3. The rapid start high-temperature fuel cell of claim 2, wherein when the main stack power supply meets a load requirement, the main control module controls to turn off the auxiliary stack power supply, and the opening of the second valve is adjusted to control the power supply of the main stack; when the main electric pile power supply power is smaller than the load requirement and the load requirement is larger than an auxiliary electric pile starting threshold, a main control module controls to start the auxiliary electric pile and the main electric pile to supply power together; when the power supply power of the main electric pile is smaller than the load requirement and the load requirement is larger than the starting threshold value of the energy storage battery, the main control module controls the auxiliary electric pile, the energy storage battery and the main electric pile to supply power together.
4. The rapid-start high-temperature fuel cell according to claim 1 or 2, wherein a ratio of the auxiliary stack generated power to the main stack generated power is: 1: 3-1: 10.
5. a control method for quickly starting a high-temperature fuel cell according to any one of claims 1 to 4, comprising:
controlling the energy storage battery to supply power to the electric heater, wherein the electric heater preheats the auxiliary electric stack;
after the auxiliary galvanic pile is preheated to a set temperature, fuel is introduced, and the auxiliary galvanic pile supplies power to the electric heater;
the electric heater is switched to preheat the main electric pile, and tail gas of the auxiliary electric pile is introduced into the main electric pile to assist in preheating the main electric pile; and when the main galvanic pile is preheated to the set temperature, fuel is introduced, the main galvanic pile outputs electric energy, the fuel introduction of the auxiliary galvanic pile is stopped, and the electric heater is turned off.
6. The control method according to claim 5, characterized in that the main stack power supply is controlled when the main stack power supply satisfies a load requirement; when the main electric pile power supply power is smaller than a load requirement and the load requirement is larger than an auxiliary electric pile starting threshold, controlling the auxiliary electric pile and the main electric pile to supply power together; and when the main electric pile power supply power is smaller than the load requirement and the load requirement is larger than the energy storage battery starting threshold, controlling the auxiliary electric pile, the energy storage battery and the main electric pile to supply power together.
7. The control method according to claim 5 or 6, wherein the energy storage battery is capable of supplying power to an external device when emergency power output is required; and when the voltage of the energy storage battery is lower than a set threshold value, controlling the main electric pile to charge the energy storage battery.
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| CN113299953B (en) * | 2021-05-20 | 2022-05-20 | 宁波吉利罗佑发动机零部件有限公司 | Method, device and equipment for quickly starting fuel cell power generation system and storage medium |
| CN113506891A (en) * | 2021-08-06 | 2021-10-15 | 大连海事大学 | Modularized solid oxide fuel cell system |
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|---|---|---|---|---|
| CN108539225A (en) * | 2018-05-16 | 2018-09-14 | 潍柴动力股份有限公司 | The startup method and solid oxide fuel cell of solid oxide fuel cell |
| CN110103777A (en) * | 2018-01-04 | 2019-08-09 | 郑州宇通客车股份有限公司 | A kind of vehicle and fuel cell system |
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2020
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110103777A (en) * | 2018-01-04 | 2019-08-09 | 郑州宇通客车股份有限公司 | A kind of vehicle and fuel cell system |
| CN108539225A (en) * | 2018-05-16 | 2018-09-14 | 潍柴动力股份有限公司 | The startup method and solid oxide fuel cell of solid oxide fuel cell |
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