Maximum power extraction for a wind-turbine generator with no wind speed sensor

This paper presents an algorithm for maximum power extraction and reactive power control of an inverter based variable-speed wind-turbine generator with no wind speed sensor. The algorithm does not require information about the wind and generator speeds or the inverter DC-link voltage and thus, is dependent of specifications of the wind-turbine generation system. Detail of the algorithm for maximum power extraction and an approach for reactive power control are presented. Dynamic performance of the wind-turbine generation system is evaluated based on digital time-domain simulation studies.