MPPT of Wind Energy Conversion System Based on Fuzzy Control

The output characteristics of wind energy conversion system are affected by the wind speed stochastic nonlinearity and uncertainty. To improve conversion efficiency, the method of realizing maximum power point tracking (MPPT) based on fuzzy control is proposed. Through adjusting the speed of the wind turbine by output power, the system approximates the maximum power operating point without wind speed sensor. The method constantly revises the system parameter in operation so that the parameter can be constantly optimized. Simulation results are given and discussed with MATLAB/SEMULINK to validate that the proposed control strategy has the good performance in terms of dynamic response and steady property.