A Fuel Cell Stack Performance Test System Influenced by Multiple Stress Combinations

Abstract

The invention provides a fuel cell stack performance test system influenced by multi-stress combination. The fuel cell stack performance test system influenced by multi-stress combination comprises acomputer operation system, an electronic control unit (ECU), various sub-control systems, a fuel cell stack, a fuel cell performance curve test system, a microstrain measurement system, sensors for testing different kinds of parameters, and sensing films. The various sensors, the sensing film components, the microstrain measurement system and the fuel cell performance curve test system feed back measured data signals to the ECU through a transmission bus, the ECU analyzes and on-time changes a preliminary test setting value, a membrane water absorption expansion force, a porous medium heat stress, a cooling water pressure, a fuel cell stack clamping force and a vibration impact force according to the increasing and decreasing by 10 percent, and the optimum whole performance of the fuel cell stack is automatically optimized. The fuel cell stack performance test system influenced by multi-stress combination is high in intelligent degree, comprehensive in fuel cell stack stress kinds, wide in range from the microscale to the macroscale, comprehensive in measurement parameters, and high in test efficiency.

Description

technical field [0001] The invention belongs to the technical field of fuel cell stack performance testing and testing, and in particular relates to a fuel cell stack performance testing system affected by multiple stress combinations. Background technique [0002] The fuel cell directly and effectively converts the chemical energy in the hydrogen fuel into electrical energy, the fuel filling time only takes a few minutes, the product is only water, the emission is pollution-free, and it is green and environmentally friendly. Therefore, fuel cells have the characteristics of high energy efficiency and low emissions, showing great potential to reduce energy consumption, pollutant emissions and dependence on fossil fuels. In recent years, they have been highly valued and extensively studied by governments, major companies and various research institutions. , and has shown broad application prospects in many fields, especially in the field of new energy vehicles. [0003] The ...

AI Technical Summary

Problems solved by technology

Therefore, it is particularly important to analyze the impact of various forces on the performance of the fuel cell stack. The current technology does not fully consider the impact of different types of force on the performance of the fuel cell stack, and most of them only consider the impact of one type of force on the performance of the fuel cell stack. , however, during the actual operation of the fuel cell stack, it bears a variety of different forces, and the various forces affect each other

Images