Fuzzy PI Control Strategy of Ship Power System based on Hybrid Energy Storage System

10.6919/ICJE.202205_8(5).0036

Yali Liu

Ship ； MVDC Power System ； Hybrid Energy Storage ； Fuzzy Rules

International Core Journal of Engineering

8卷5期（2022 / 05 / 01）

294 - 306

英文

Aiming at the DC bus voltage fluctuation caused by the access of impulse load and complex sea conditions during ship navigation, a ship Medium Voltage DC (MVDC) power system model with hybrid energy storage of lithium battery and super capacitor is constructed. The fuzzy PI control strategy is proposed to distribute the load demand power, realize the accurate management of the charging and discharging process of energy storage elements, and effectively deal with the voltage fluctuation of DC bus under various working conditions. The system is designed and simulated on MATLAB/Simulink software platform, and the simulation results of traditional PI and fuzzy PI control strategies are compared. The results show that the fuzzy PI control strategy can maintain better stability of DC bus voltage, and verify the rationality and effectiveness of the proposed fuzzy PI control strategy.

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