A Novel Maximum Power Point Tracking Algorithm for Wind Energy Conversion System

This paper presents a novel efficient maximum power point tracking algorithm for wind energy conversion system. Conventional techniques to obtain maximum power are susceptible to the mechanical disturbances. Conversely, the perturbation algorithm requires high accuracy of turbine power characteristics. Therefore, a variable speed-variable pitch wind turbine in conjunction with permanent magnet synchronous generator and sensor-less maximum power point tracking has been proposed in this paper. A nonlinear optimum relationship between output power and dc voltage has been developed in this research work. On the basis of mathematical relationship, a new perturbing parameter has been introduced for more effective tracking scheme. The proposed system has been verified on simulation interface, and compared with the conventional perturbations. The comparison results show that the proposed technique increases the overall output power of the system by 5-7%.