Water temperature control method and system for fuel cell

A water temperature control method and fuel cell technology, applied in fuel cells, control/regulation systems, temperature control, etc., can solve problems such as poor control effect accuracy
CN112711282AActive Publication Date: 2021-04-27SHANGHAI HYDROGEN PROPULSION TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHANGHAI HYDROGEN PROPULSION TECH CO LTD
Publication Date
2021-04-27

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Abstract

The invention discloses a water temperature control method and system for a fuel cell. The method employs a multi-internal-model control algorithm to achieve the control of the opening degree of an electronic thermostat, thereby achieving the precise control of the water temperature of the fuel cell. The multi-internal-model control algorithm has the characteristics of high robustness, good traceability and the like, and is suitable for large-hysteresis nonlinear system control. According to the scheme, model linearization is carried out on typical working condition points of the fuel cell, different working condition points are identified, and models under different working condition points are obtained, thereby designing an internal model controller and a feedforward controller under different working condition points. Based on the algorithm, ideal control over the water temperature under all working conditions is achieved, and the method has the advantages of being short in response time and small in overshoot.
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Description

technical field

[0001] The present application relates to the technical field of automatic control, and more specifically, to a method and system for controlling the water temperature of a fuel cell. Background technique

[0002] Proton exchange membrane fuel cell (hereinafter referred to as fuel cell) is a new type of fuel cell, its electrolyte is a solid organic membrane, and its exchange membrane can conduct protons under humidified conditions. Due to its environmental friendliness, high energy conversion rate, no noise and fast response, this kind of fuel cell is considered to be a new energy power generation system that will be developed in the future.

[0003] When the fuel cell is in different working conditions or the whole vehicle requires it to output different power, the water temperature control requirements for the fuel cell are different, and the temperature of the fuel cell flowing out of the fuel cell (referred to as water temperature for short) needs to be c...

Claims

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