DocumentCode :
3475586
Title :
Study of brushless doubly-fed control for VSCF wind power generation system connected to grid
Author :
Qi, Wang ; Xiao-hu, Chen ; Wan-min, Fei ; Yan-chao, Ji
Author_Institution :
Sch. of Electr. & Autom., Nanjing Normal Univ., Nanjing
fYear :
2008
fDate :
6-9 April 2008
Firstpage :
2453
Lastpage :
2458
Abstract :
A whole model for brushless doubly-fed wind generation system is presented and the model in includes wind turbine, gear-box and brushless doubly-fed machine (BDFM). Starting from d-q model of rotor under reference coordinate, a mathematical model of BDFM based on synchronous coordinates is researched. For the power system, a new model adapting to analyze the power system is gained by neglecting the electromagnetic transient change. According to the characteristics of BDFM and adopting flux linkage oriented vector transformation control technology, a new type of control for brushless doubly-fed VSCF wind power generation system connected to grid is developed. The doubly-fed control is adopted in this system, and the voltage compensate is avoiding for the PWM current-tracing control is used in the inner ring. By means of controlling the control winding of wind turbine this control system the AC excitation is implemented, and then the decoupling control of active and reactive power is realized, eventually the generating operation mode with high efficiency that can capture maximal wind energy is come true. Simulation results verify the availability and validity of the proposed control strategy.
Keywords :
brushless machines; electric current control; electric generators; machine vector control; power generation control; power grids; reactive power control; wind power plants; wind turbines; PWM current-tracing control; VSCF wind power generation system; d-q rotor model; decoupling control; doubly-fed machine control; flux linkage oriented vector transformation control; power grid; power system; reactive power control; variable speed constant frequency; wind turbine; Control systems; Mathematical model; Power system analysis computing; Power system modeling; Power system transients; Pulse width modulation; Voltage control; Wind energy generation; Wind power generation; Wind turbines; brushless doubly-fed wind turbine; power system; stator field-oriented control; synchronous coordinates; wind energy generation;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Electric Utility Deregulation and Restructuring and Power Technologies, 2008. DRPT 2008. Third International Conference on
Conference_Location :
Nanjuing
Print_ISBN :
978-7-900714-13-8
Electronic_ISBN :
978-7-900714-13-8
Type :
conf
DOI :
10.1109/DRPT.2008.4523823
Filename :
4523823
Link To Document :
بازگشت