Design and implementation of fuzzy sliding mode controller for switched reluctance motor

Abstract

Abstract:This paper presents a fuzzy sliding mode controller used for switched reluctance motor speed regulation. Based on the technique of variable structure control (VSC) with sliding mode, we can construct the controller that possesses the merits of both fuzzy controller and variable structure controller. It is called a "fuzzy sliding mode controller" (FSMC). It provides a simple way to solve the main drawback of VSC by reducing the amount of chattering effect using a fuzzy control part in the proposed controller. Also, the VSC part makes the system stable which treats the main disadvantage of fuzzy controller when being used alone. The speed control simulation results are obtained by using the proposed FSMC and the traditional PI controller under different operating conditions. Also, sensitivity analyses simulation results for parameter variations are obtained to check the robustness of the system when using the proposed controller. Finally, the expermintal controlled system is illustrated for closed loop and experimental results are presented which show the validity and effectiveness of the proposed FSMC.

A novel direct torque control using second order continuous sliding mode of a doubly fed induction generator for a wind energy conversion system

“…To resolve this problem, several modifications to the usual control law have been proposed. In most cases, the boundary layer approach is applied [11].…”

“…To resolve this problem, several modifications to the usual control law have been proposed. In most cases, the boundary layer approach is applied [11]. Some useful solutions for sliding mode DTC with less torque and flux ripples used in induction motor drives were described in [12,13].…”

A New DTC Scheme using Second Order Sliding Mode and Fuzzy Logic of a DFIG for Wind Turbine System

“…In order to resolve this problem, various adjustments to the usual control law have been discussed. The approach based on boundary layer is applied in almost all cases [12]. Another efficiency solution consists to substitute the discontinuous control signal by fuzzy logic one has also been used recently in some research works [13][14][15].…”

Comparative Study of Robust Control Strategies for a Dfig-Based Wind Turbine

“…Nevertheless, this type of control has an essential disadvantage, which is the chattering phenomenon caused by the discontinuous control action. In order to overcome these difficulties, several modifications to the original sliding control law have been proposed, the most popular being the boundary layer approach [10].…”