The Speed Control of Electro-Hydraulic Proportional Pump Controlled Motor System Based on the Fuzzy PID Controller

In terms of the speed control issues of proportional pump controlled motor system, this paper firstly analyzes the composition and working principle of the system, establishes the mathematical model of the system, and obtains the system characteristics. Then according to the characteristics of the system, this paper designs a new type of fuzzy PID structure, determines the fuzzy linguistic variables and membership functions, and formulates the fuzzy rules, determines the method of fuzzy reasoning and clarification. Finally, this paper carries out the simulation of the system in the MATLAB/Simulink environment, and analyzes system response curves of PID control and fuzzy PID control. The simulation results show that fuzzy PID control is better than conventional PID control on motor speed control.