Parameter independent control of doubly-fed reluctance wind generators without a rotor position sensor

Abstract

A novel model reference adaptive system (MRAS) based estimation technique for sensorless operation of a brushless doubly fed reluctance generator (BDFRG) with maximum power point tracking (MPPT) is proposed. The main advantage of this development is the truly machine parameter independent rotor angular velocity MRAS observer complemented by an original position error compensation scheme for higher accuracy, making it clearly superior to the existing designs. The simulation and experimental results have demonstrated the excellent performance prospects for typical wind turbines emulated in a laboratory environment.