A Direct Power Control of the PWM Rectifier for SEIG Feeding Resistive Load in Wind Energy Systems

Abstract

In this paper, a control technique is elaborated for a stand-alone induction generator (IG) driven by a wind turbine for use in rural areas. The generator is excited by a bank of capacitor. While the buildup of the voltage starts, there is a variation in the linkage flux of the IG, which lead to the variation of the magnetizing inductance due to saturation of the core. The main goal of this paper consists of regulating the DC bus of an AC/DC converter using a control strategy calling DPC or direct power control, this technique consists of choosing control vector from a switching table based on instantaneous active and reactive power error and the line voltage position.