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A method for direct start-up of a fuel cell system

A fuel cell system and fuel cell technology, applied to fuel cells, circuits, electrical components, etc., can solve problems such as limited use range and inability to start the fuel cell system, saving time, controllable start-up process, and mild and fast response. Effect

Active Publication Date: 2017-09-15
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Description
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Problems solved by technology

[0005] The fuel cell start-up method designed by the patented fuel cell system and fuel cell start-up method (publication number CN100514733C) needs to provide fuel with an optimal concentration to operate the fuel cell and reduce the time required to start the fuel cell. Although this method can achieve start-up The purpose of the fuel cell, but the scope of use is limited, and it can only be completed in a conditional environment. If there is a lack of starting conditions, such as the fuel that cannot provide the best concentration, the fuel cell system cannot be started

Method used

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  • A method for direct start-up of a fuel cell system

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Embodiment Construction

[0014] The present invention will be further described below in conjunction with the embodiment that accompanying drawing provides.

[0015] The system includes a general control module, a fuel cell module, a DC / DC module, a cooling module, and a data acquisition module. The modules are connected by wires, and the general control module is connected to the task computer through the 232 bus; the fuel cell output bus of the fuel cell module is divided into two outputs after passing through the voltage and current sensors, one is connected to the DC / DC that supplies power for the blower, and the other is connected to the connected to the output load.

[0016] The total control module includes controller ECU, data acquisition module, solenoid valve and relay. The ECU and the data acquisition module are connected by wires, the solenoid valve and the ECU are connected by wires, the ECU and the relay are connected by wires, and the relay and the cooling module are connected by wires...

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Abstract

The invention relates to a fuel cell system and a direct starting method thereof, which is used to solve the problem of normal starting of the fuel cell in the absence of starting conditions in the external field, so that the system can operate normally, and is a starting method for starting the fuel cell system without external power supply . According to the needs of the blower, the voltage output by the internal control power supply can be used to drive the blower to start with a small DC / DC. When the blower is started, the fuel cell system can work normally due to the continuous air supply. After the large DC / DC is started, the large DC / DC supplies power to the blower, and the small DC / DC is cut off at the same time, the system operates normally.

Description

technical field [0001] The invention relates to a start-up method for a fuel cell system under an environment where full start-up conditions cannot be provided. Background technique [0002] A fuel cell is a power generation device that directly converts chemical energy in fuel and oxidant into electrical energy through an electrocatalytic reaction on electrodes. It is not limited by the Carnot cycle and can efficiently convert chemical energy into electricity. Proton exchange membrane fuel cell (PEMFC) has outstanding advantages such as fast start-up, no electrolyte loss, easy discharge of water, long life, high specific power and specific energy, and is especially suitable as a mobile power source. It has been widely used in electric buses, Power plants, ships and aviation and other fields. [0003] During the experiment of the fuel cell system in the field, there are situations where the start-up conditions cannot be provided. For example, an external power supply is re...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M8/04225H01M8/04302
CPCY02E60/50
Inventor 周利邵志刚苌国强于诚溢王晓冬
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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