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PID control method of fuel cell system

A technology of a fuel cell system and control method, which is applied in the direction of fuel cells, circuits, electrical components, etc., and can solve the problems of slow response speed and large error of PID controllers

Active Publication Date: 2020-05-08
深圳国氢新能源科技有限公司
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  • Summary
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The main purpose of the present invention is to provide a PID control method for a fuel cell system, aiming to solve the technical problems of slow response speed and large error in existing PID controllers

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  • PID control method of fuel cell system
  • PID control method of fuel cell system
  • PID control method of fuel cell system

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Embodiment Construction

[0033] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present invention, but cannot be construed as limitations to the present invention. Based on the embodiments in the present invention, those of ordinary skill in the art have no creative work All other embodiments obtained under the premise all belong to the protection scope of the present invention.

[0034] The present invention proposes a PID control method for a fuel cell system, wherein the fuel cell system includes a fuel cell stack, a hydrogen supply system for supplying hydrogen to the fuel cell stack, an air supply system for supplying air to the fuel cell stack, and Cooling systems for c...

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Abstract

The invention discloses a PID control method of a fuel cell system. The PID control method comprises: constructing a theoretical database of a fuel cell, the theoretical database comprising power parameters and cooling liquid temperature parameters, hydrogen flow parameters and air flow parameters corresponding to the power parameters; obtaining a theoretical parameter value of the fuel cell and an actual parameter value corresponding to the theoretical parameter value, and calculating a deviation value between the actual parameter value and the theoretical parameter value, the theoretical parameter value being any one of a cooling liquid temperature value, a hydrogen flow value and an air flow value; inputting the deviation value into a preset PID control algorithm to calculate the control quantity of the fuel cell; and controlling a corresponding execution mechanism to adjust the temperature, the hydrogen flow or the air flow of the cooling liquid input into the fuel cell according to the control quantity, wherein the execution mechanism is a cooling system, a hydrogen supply system or a gas supply system. The invention is beneficial to improving the control precision of controlling the operation of the fuel cell system and improving the response speed of controlling the fuel cell system.

Description

technical field [0001] The invention relates to the technical field of fuel cells, in particular to a PID control method for a fuel cell system. Background technique [0002] As we all know, hydrogen fuel cell is a clean energy fueled by hydrogen, and hydrogen fuel cell is also one of the development directions of clean energy in the future. [0003] The existing hydrogen fuel cell operation mode generally adopts PID (Proportion Integration Differentiation) controller, which controls the fuel cell system by calibrating parameters, and then corrects it through an algorithm near the target value, resulting in the traditional PID controller running In the process, there will be problems of slow response speed and large error. Contents of the invention [0004] The main purpose of the present invention is to provide a PID control method for a fuel cell system, aiming at solving the technical problems of slow response speed and large error in existing PID controllers. [0005...

Claims

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Application Information

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IPC IPC(8): H01M8/0432H01M8/0438H01M8/04701H01M8/04746H01M8/04992
CPCH01M8/04358H01M8/04388H01M8/04723H01M8/04753H01M8/04992Y02E60/50
Inventor 徐丛国匡金俊彭晖彭旭
Owner 深圳国氢新能源科技有限公司
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