Investigation of skew effect on the performance of self - excited induction generators

Abstract

This paper presents the investigation of skew effects on the performance of three phase, 2.2 kW 220/380 volt 4 poles self - excited induction generators (SEIG) with skewed squirrel cage rotor. Analysis of excitation capacitor of the SEIG based on a steady - state equivalent circuit model including rotor skew effect is given. Skewed rotor with angle of 0°, 5°, and 10° for the SEIG are employed. Testing and performance comparison under dynamic and steady - state operation with resistive and resistive - inductive loads have been performed. Results can be guidelines for development of effective wind induction generators. © 2007 IEEE.