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A genetic algorithm optimized fuzzy PID control is proposed to improve the controller effect and realize constant voltage output control of the MFC, showing smaller overshoot, better stability, and stronger anti-interference ability compared to traditional PID and other optimized PID methods.

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What they did

System
MFC

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Abstract

Microbial fuel cell (MFC) has attracted more and more attention as a kind of efficient and green power source. Due to its own complexity, the precise control of MFC is still difficult to achieve. The output voltage of MFC has large overshoot and shock under traditional PID control, and it is difficult to adapt to the changes in operating conditions. So, a genetic algorithm optimized fuzzy PID control is proposed to improve the controller effect and realize the constant voltage output control of the MFC. Simulation results show that compared with the traditional PID, the genetic algorithm optimized PID, and the fuzzy tuning PID, the genetic algorithm optimized fuzzy PID control shows smaller overshoot, better stability and stronger anti-interference ability. Optimizing the conventional PID through fuzzy logic and genetic algorithm is a simple, easy, low-cost but effective method to solve the problems of unstable power generation and poor anti-interference ability of MFC system.

Keywords

Fuzzy logicGenetic algorithmMicrobial fuel cellOptimization algorithmFuel cellsController (irrigation)

Identifiers

DOI
10.20964/2021.11.10
Journal
International Journal of Electrochemical Science
Year
2021