SWITCHING SECTOR BASED SLIDING MODE CONTROL FOR VARIABLE SPEED WIND TURBINE

Abstract

Wind energy is prominently featured as a non-polluting, inexhaustible source of supplemen tary energy. However, its speed control is a major limitation, particularly when dealing with fast fluctuations in wind speed. The goal of wind energy systems is to maximize energy effi ciency and controlling the wind turbine speed. Managing wind turbines with varying speeds is challenging due of the nonlinearities of identical mathematical models and the impacts of ex ogenous disturbances. The controller’s primary goal is to extract the most power from the wind. Due to its simplicity design and efficient functioning, the PID controller design is a highly com mon technique for managing industrial processes. In fact, the practical systems operate with parametric variations and are affected by outside disturbances. PID controllers utilized in the industry don’t have the proper settings, hence their performance is very suspect. The robustness of the sliding mode technique in terms of stability and performance against shocks makes it popular. So CSMC is implemented. A variable speed wind turbine with a sliding mode con trol mechanism to increase the amount of wind energy captured and reduce the transient loads driven by the frequent changes in wind speed. But the principal drawback of this strategy is the chattering phenomenon. So proposed the switching sector based sliding mode control technique that can be used to combat this issue. The effectiveness is simulated in MATLAB/Simulink and compared with controller conventional sliding mode controller for various wind speed profiles