Standalone operation of wind turbine operated self excited induction generator

Abstract

This paper presents the modeling and simulation of wind turbine (WT) driven self-excited induction generator (SEIG) for standalone operation. The pitch control mechanism has been adopted in the studied model of WT driven SEIG to control the output power of WT. The effect of exciting capacitance and the load variation during voltage buildup of the SEIG has been explored. Unlike grid connection mode, in a standalone mode of operation, both the voltage and the frequency are required to maintain its nominal value. Dynamic performance of the SEIG under constant wind speed conditions are simulated under the platform of MATLAB/SIMULINK® owing to step change in load and excitation capacitance. Analysis of terminal voltage during load variation for uncontrolled and controlled condition are analyzed and presented.