Fractional Order Fuzzy Logic Position and Force Control of Experimental Electro-Hydraulic Servo System

This research demonstrates the design of Fractional Order Fuzzy Proportional Derivative Controller (FOFPDC) and Fuzzy Proportional Derivative Controller (FPDC) for force control for simulation and experimental of electro-hydraulic servo system (EHSS). The parameters of the scaling factor for FLC have been tuned by Modified Adaptive Accelerated Coefficients Particle Swarm Optimization (MAACPSO). The simulation study was created using SIMULINK/MATLAB package based on the differential equations that describe the dynamic behavior of the industrial hydraulic servo system. The simulation and experimental results presents minimum values for performance index in terms of settling time, rise time and percentage overshoot in case of using FOFPDC. Furthermore, the other criteria such as multistep response, sinusoidal response and actuator saturation test demonstrate a good result for applying FOFPDC for force control problems. As a result, the main concern goes to apply the FOFPDC controllers for force control for the studied industrial electro-hydraulic servo system.