Low temperature starting methods for fuel cell system, computer equipment and memory medium

Abstract

The invention provides low temperature starting methods for a fuel cell system, computer equipment and a memory medium. A low temperature starting method comprises the steps of obtaining and judging whether an initial temperature of a reaction stack in the fuel cell system is greater than a first temperature threshold or not; judging whether the fuel cell system enters a low temperature starting mode or not if the initial temperature is not greater than the first temperature threshold; providing hydrogen for an anode the fuel cell system through utilization of a hydrogen system, and providingair for a cathode of the fuel cell system through utilization of an air system; pumping cathode reaction gas exhausted from a cathode exhaust port into a cathode air inlet through utilization of a cathode circulation pump in a cathode recirculation system; adjusting an output current of the fuel cell system through utilization of a power output system, thereby enabling the output current to be equal to a preset target current; periodically obtaining and judging whether a real-time temperature of the reaction stack is greater than a second temperature threshold or not; and starting an anode recirculation system if the real-time temperature is greater than the second temperature threshold.

Description

technical field [0001] The invention relates to the technical field of proton exchange membrane fuel cells, in particular to a low-temperature starting method for a fuel cell system, computer equipment and a storage medium. Background technique [0002] At present, global oil resources are becoming increasingly depleted, and environmental problems such as the greenhouse effect are becoming more and more serious. Compared with traditional internal combustion engines, electric motors and other power sources, fuel cells have great advantages in power density and environmental friendliness. A fuel cell is an electrochemical device that converts chemical energy directly into electrical energy. Since the energy conversion process of the fuel cell is not limited by the Carnot cycle, its energy conversion efficiency is relatively high. During the working process of the fuel cell, the fuel consumed is hydrogen, the reaction product is water, and the harmful emissions are zero, so i...

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Problems solved by technology

[0006] Based on this, it is necessary to address the problem that the fuel cell system cannot be quickly started under low temperature conditions, and provide a low-temperature start-up method, computer equipment and storage medium for the fuel cell system

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