Modeling method of marine diesel generator based on Fuzzy PID control

Abstract

With the continuous development of the ship propulsion system, the traditional PID control is gradually unable to make effective regulation for real-time changes. A Fuzzy PID control method-based modeling method for the ship diesel generator is proposed. The on-line self-tuning PID control coefficient method can improve its speed regulation function to the greatest extent. In this paper, based on the explanation of the working principle of Marine diesel generator and the analysis of Fuzzy PID control method, the ship diesel generator based on Fuzzy PID control is modeled and simulated with the help of Matlab/Simulink. Based on the traditional PID control and Fuzzy PID control in the three typical working conditions (i.e., the propulsion system starting up, suddenly loaded and unloaded, three phase short circuit fault and fault repair), the comparative study of the performance under Fuzzy PID control strategy is found that the overshoot and adjustment time were significantly less than the traditional PID control strategy, expected to ship diesel generating based on Fuzzy PID control. So, it has important reference value for power system of ship propulsion in the future of our country.