A fuel cell bubbling humidifier control system and control method

Abstract

The invention discloses a fuel cell bubbling humidifier control system and a control method, which belong to the technical field of fuel cell humidification and include a controller and a bubbling humidifier. The controller includes a reference trajectory model unit, an optimization algorithm unit, a prediction model unit, Temperature control unit and liquid level control unit, the bubbling humidifier includes heating unit, cooling unit, water circulation unit, water supply unit, bubbling tower, temperature transmission unit, liquid level transmission unit and gas humidity transmission unit; reference trajectory model The unit updates the reference trajectory according to the sampled dew point temperature; the prediction model unit predicts the humidity response curve according to the control law to be optimized for the sampled dew point temperature and deionized water temperature; the optimization algorithm unit calculates the performance index based on the reference trajectory and the humidity response curve to obtain the optimal control law The temperature control unit controls the temperature of the deionized water according to the control amount of the optimal control law, thereby realizing the humidity control of the gas.

Description

technical field [0001] The invention belongs to the technical field of fuel cell humidification, and in particular relates to a fuel cell bubbling humidifier control system and control method. Background technique [0002] The rapid development of mankind is inseparable from the development and utilization of energy, but today the fossil energy that accounts for the largest proportion of all energy is non-renewable energy and will continue to be exhausted as time goes by. As a secondary energy source, hydrogen energy can be obtained by electrolysis of water from renewable energy such as wind energy, solar energy, and tidal energy. It is regarded as the most promising clean energy in the 21st century. In the field of hydrogen energy applications, fuel cells are an ideal form of hydrogen energy utilization. They can efficiently convert the chemical energy of fuel into electrical energy through chemical reactions, and the entire reaction process is not restricted by the Carnot ...

AI Technical Summary

Problems solved by technology

At present, in order to speed up the response speed of fuel cell system humidification, most of the spray humidification and bubbling humidification are combined, and the response speed of bubbling humidification is improved by controlling the spray humidification. However, the design of the device is complicated and the cost is high.

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