A Study of Generator System Selection for Large Wind Turbine Generator System

Abstract

This paper focuses on selection of wind turbine generation systems that include generators, converters and gears. We study three systems: permanent magnet generator (PMG) system, doubly-fed generator (DFG) system and synchronous generator (SYG) system in terms of the system efficiencies and running costs. The system efficiencies and running costs are calculated with considering relation between wind power and wind condition. According to these results, the 1-step gear PMG system is the best choice to large wind turbine system.