OPTIMIZATION OF PMSG VARIABLE SPEED WIND ENERGY CONVERSION SYSTEM CONTROLLER PARAMETERS BY BIOGEOGRAPHY-BASED OPTIMIZATION

Abstract

This paper presents an optimization procedure of maximum power point tracking method for direct-drive permanent-magnet synchronous generator (PMSG) used in a variable-speed wind turbine (VSWT) generation system. The Field oriented control is used to control the frequency converter using the PI controllers to achieve maximum power point tracking. The setting of the parameters of the PI controllers used in the frequency converters of VSWT-PMSG generation system is exhausted. It is aimed evaluate an optimal design algorithm for these controllers by using Biogeography-based optimization.
The constrained optimization problem is solved using Biogeography-based optimization and Genetic Algorithm. MATLAB-SIMULINK is used to evaluate the effectiveness of the proposed Biogeography-based optimization technique. In order to verify the validity and the performance of the proposed controllers, the simulation results for a VSWT-PMSG using a PI controllers optimized by the Biogeography-based optimization technique is compared with that obtained using Genetic Algorithm.