Title :
A simple control scheme for variable speed wind turbines
Author :
Zinger, Donald S. ; Muljadi, Eduard ; Miller, Andrew
Author_Institution :
Dept. of Electr. Eng., Northern Illinois Univ., DeKalb, IL, USA
Abstract :
Wind turbines can operate at their maximum power coefficient under variable wind conditions if they have variable speed capabilities. A simple control scheme allows induction generators to operate at an optimal speed for a given wind speed. This scheme uses a standard V/Hz converter operated to give the frequency required for the given shaft speed and power requirement. Small signal analysis of this control shows it to be stable and have a bandwidth suitable to track the wind. Simulations and experimental results show the system to work well
Keywords :
asynchronous generators; machine control; variable speed gear; velocity control; voltage-frequency convertors; wind turbines; bandwidth; control scheme; induction generators; optimal speed operation; shaft speed; small signal analysis; standard V/Hz converter; variable speed wind turbines; variable wind conditions; Electric variables control; Frequency conversion; Induction generators; Induction machines; Power generation; Power system reliability; Shafts; Wind energy generation; Wind speed; Wind turbines;
Conference_Titel :
Industry Applications Conference, 1996. Thirty-First IAS Annual Meeting, IAS '96., Conference Record of the 1996 IEEE
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-3544-9
DOI :
10.1109/IAS.1996.559284
