Power Quality Issues of Induction Generators in Different Operating Modes

Fast wind energy developments and their integration in existing power network may result in power quality problems. Therefore, in this paper, an attempt has been made to tackle the major power quality issues related to induction generators operating as grid connected induction (GCIG) and self excited induction generator (SEIG). MATLA B SIMULINK models as developed for GCIG and SEIG operation are found to be useful to analyse these effects. Simu lated results as obtained on these induction generators have been used to identify the machine parameters affecting the power quality issues such as active & reactive power, total harmonic d istortion etc. Further analysis of simulated results for two operating modes i.e. GCIG and SEIG seems to be useful fo r the design of such generators for overall power quality improvements.