Title :
The study of doubly-fed PWM converter in wind generator system
Author :
Deng, Li ; Fu, Qiang ; Wang, Qiang ; Zheng, Qunying ; Liu, Heping
Author_Institution :
State Key Lab. of Power Transm. Equip. & Syst. Security & New Technol., Chongqing Univ., Chongqing
Abstract :
In the doubly-fed wind generator system, a bi-directional converter is needed to control the energy bi-directional flow due to the different operation of generator. Doubly-fed PWM converter with attractive characteristics, such as well sinusoidal waveform of input current, high power factor, low THD (total harmonic distortion) to the grid and motor, and bi-directional conversion, could better meet the requirement. This paper analyzes the main circuit topology of doubly-fed PWM converter, then presents and compares different control strategies. At last the paper proposes the PC simulation results, which proves the high dynamic and static performance of doubly-fed PWM converter.
Keywords :
PWM power convertors; load flow control; wind power plants; bidirectional energy flow control; doubly-fed PWM converter; main circuit topology; wind generator system; Bidirectional control; Circuit topology; Control systems; Power generation; Pulse width modulation converters; Reactive power; Total harmonic distortion; Voltage; Wind energy generation; Wind power generation;
Conference_Titel :
Automation Congress, 2008. WAC 2008. World
Conference_Location :
Hawaii, HI
Print_ISBN :
978-1-889335-38-4
Electronic_ISBN :
978-1-889335-37-7