Title :
A stand-alone three-phase induction generator based wind energy storage system
Author :
Daher, Sérgio ; Pontes, Ricardo ; Antunes, Fernando
Author_Institution :
Dept. de Engenharia Eletrica, Univ. Fed. do Ceara, Brazil
Abstract :
This paper presents an excitation system for an induction generator. The induction generation used in a small power wind energy system operates with variable frequency, making possible to operate with maximum efficiency for variable wind speed. In order to make the system robust and cheap, the rotor is direct coupled to the generator that is operated at low speed. The inverter switches operate with a sinusoidal PWM strategy which reduces the number of switching by one-third when compared to the conventional PWM method
Keywords :
DC-AC power convertors; PWM invertors; asynchronous generators; exciters; machine testing; machine theory; rotors; switching circuits; wind power plants; wind turbines; directly-coupled rotor; excitation system; inverter switches; maximum efficiency; sinusoidal PWM strategy; stand-alone three-phase induction generator; variable frequency operation; variable wind speed; wind energy storage system; wind energy system; Frequency; Induction generators; Power generation; Pulse width modulation inverters; Robustness; Rotors; Switches; Wind energy; Wind energy generation; Wind speed;
Conference_Titel :
Industrial Electronics Society, 1999. IECON '99 Proceedings. The 25th Annual Conference of the IEEE
Conference_Location :
San Jose, CA
Print_ISBN :
0-7803-5735-3
DOI :
10.1109/IECON.1999.819429
