Modified Whale Optimisation Technique for Combined Objective of Torque Ripple Minimization & Speed Control of SRM Drive

Abstract

In this work metaheuristic technique such as modified Hybrid Whale Optimization Algorithm (mWOA) is used for control of speed along with ripple reduction in output torque of 75 KW, 4-phase 8/6 Switched Reluctance Motor (SRM) drive. The objective is to develop a controller for combined goal of speed control and ripple reduction in output torque of SRM. Various performance factors such as gain of proportional controller & integral controller of speed controller as well as of current controller commutation angle values are considered for performance assessment of SRM. A comparison is made of the performance of SRM with implementation of modified Whale Optimization Algorithm (mWOA) & Whale Optimization Algorithm (WOA). It is seen that coefficient of torque ripple, ISE of current and objective function is reduced by mWOA algorithm as compared to WOA.