Abstract
A nonlinear control of a Permanent Magnet Synchronous Generator (PMSG) in Wind Energy Conversion System (WECS) with maximum power extraction is presented. The control strategy is guaranteed in two steps. In the first step, different MPPT techniques are designed to track the maximum power point (MPP). Four MPPT techniques, in order to guarantee the maximum wind power, are presented which are: Tip Speed Ratio (TSR) method, Optimal Torque Control (OTC) method, Perturb and Observe (P&O) method and Modified Enhanced Perturb and Observe (MEPO). Whereas in the second step, a Sliding Mode Control (SMC) is applied to control the PMSG in variable speed WECS. The SMC has many advantages such as simplicity against parameter uncertainties. The WECS is developed in MATLAB/SIMULINK. The performance of MPPT techniques and SMC controller are validated via simulations.
Published Version
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