Maxi'mum Ou ut Power Contml fbr Variable-Speed Small Wind Turbine Generator System

This paper proposes maximum output power contrl of variable-speed small wind turbine generator system. Paying attention to an timum rotor speed of a single phase AC generator which can obtain maximum output power according to natura wind speed, the proposed nwthod adusts the rotor speed of the slngle phase AC generator to the optimum rotor speed. Since this adjustnent is realized on ine, so that, it can be adapted fr variabe-speed natural wind, a generated power br~elinks diimcdy with the single phase AC generator, and the rotor speed of the single phase AC generator is adjusted by controlling a generated current that flows FET (Field-Effct Transistor) eice as the generated power brake. In ordr to reucce heat oss ofFET idice, PWM (Pulse Width Mouaton) contro is introduced. Moreover. the experimienta system for the proposed method is constituted, and the experiment is perfnred. Filnaly, the va idity and the practicality of the proposed mthod are confirmc by exenrnxnta results.