Fuel cell temperature control system compatible with different power stacks

Abstract

The invention provides a fuel cell temperature control system compatible with different power stacks. The fuel cell temperature control system comprises a PLC lower computer temperature control unit, an upper computer monitoring control unit, a circulating water loop and an electronic load, the circulating water loop comprises circulating water, an in-pile temperature sensor, an out-pile temperature sensor, a water tank, a water pump, a flow sensor, a heater, an annular fin type radiator, a high-power cooling fan and a low-power cooling fan; the PLC lower computer temperature control unit calculates the heat dissipation power required by the fuel cell stack according to the electronic load power so as to judge the working mode of the fuel cell temperature control system, and controls the working states of the heater, the high-power heat dissipation fan and the low-power heat dissipation fan by comparing the in-stack temperature with the set test temperature in different working modes, the temperature of the fuel cell is controlled, and the device has the advantages of being high in heat dissipation response speed, small in temperature fluctuation range of the fuel cell and wide in test target power range.

Description

technical field [0001] The invention belongs to the technical field of automatic control, and in particular relates to a fuel cell temperature control system compatible with different power stacks. Background technique [0002] The proton exchange membrane fuel cell (PEMFC) makes hydrogen and oxygen undergo oxidation-reduction reactions to generate water under the action of a catalyst, and converts the chemical energy in the hydrogen fuel into electrical energy, which is supplied to an external load. In addition to the common advantages of fuel cells such as no pollution, high efficiency, and no noise, proton exchange membrane fuel cells also have the advantages of low operating temperature, high power density, and rapid start-up. After years of basic research and application development, the application of proton exchange membrane fuel cells in automobiles, drones and ships has made substantial progress. [0003] The output performance of proton exchange membrane fuel cell...

AI Technical Summary

Problems solved by technology

[0006] Aiming at the problems of complex heat dissipation system structure, large temperature fluctuation range and small test range in the above-mentioned prior art, the present invention proposes a fuel cell temperature control system compatible with different power stacks

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