Simulation Comparisons and Implementation of Wind Power Based Induction Generator

Abstract

This paper describes the performance comparison of a wind power systems based on two differentinduction generators as well as the experimental demonstration of a wind turbine simulator for the maximumpower extraction. The two induction machines studied for the comparison are the squirrel-cage inductiongenerator (SCIG) and the doubly fed induction generator (DFIG). The techniques of direct grid integration, independent power control, and the droop phenomenon of distribution line are studied andcompared between the SCIG and DFIG systems. Both systems are modeled in Matlab/Simulink environment, and the operation is testedfor the wind turbine maximum power extraction algorithm results. Based on the simulated wind turbine parameters, a commercialinduction motor drive was programmed to emulate the wind turbine and is coupled to the experimental generator systems. The turbineexperimental results matched well with the theoretical turbine operation.