Design of Marine Diesel Engine Speed Control System Based on SSA-PID

PID control, as a kind of process control method, is widely used in industrial control because its simple algorithm, good robustness and high reliability make it occupy a greater advantage in linear constant system. At present, most of the ship host speed control systems use PID controllers, but the speed control of ship diesel engine is a nonlinear process, vulnerable to wind, waves or load sudden change and other conditions of interference, and can not be suggested for the above conditions of the accurate mathematical model, resulting in the conventional PID control method can not achieve the desired control effect, speed performance is unstable, slow response speed and other problems. In order to solve these problems, this paper uses the sparrow search algorithm to optimize the conventional PID control algorithm, based on the MATLAB/Simulink platform, establishes the mathematical models of the ship host, the host speed regulating mechanism, the PID controller, the PID controller based on the optimization of sparrow search algorithm, respectively, and carries out the simulation test of the system under different conditions, and finally designs a system capable of real-time adjustment of PID controller parameters and anti-interference ability of marine diesel engine speed controller. The final test results show that the optimized controller is better than the conventional controller in terms of overshooting, stabilization time and response speed.