Implementation and control of grid connected AC-DC-AC power converter for variable speed wind energy conversion system

Submitted by OEST on May 10, 2015 - 5:28pm

Title	Implementation and control of grid connected AC-DC-AC power converter for variable speed wind energy conversion system
Publication Type	Conference Paper
Year of Publication	2003
Authors	Song S-H, Kang S-il, Hahm N-kun
Conference Name	Eighteenth Annual IEEE Applied Power Electronics Conference and Exposition, 2003. APEC '03.
Publisher	IEEE
ISBN Number	0-7803-7768-0
Keywords	30 kW, active power contro, DC-DC boosting chopper
Abstract	30 kW electrical power conversion system is developed for a variable\nspeed wind turbine system. In the wind energy conversion system (WECS)\na synchronous generator converts the mechanical energy into electrical\nenergy. As the voltage and frequency of generator output vary along\nthe wind speed change, a DC-DC boosting chopper is utilized to maintain\nconstant DC link voltage. The input DC current is regulated to follow\nthe optimized current reference for maximum power point operation\nof turbine system. Line side PWM inverter supply currents into theνtility line by regulating the DC link voltage. The active power\nis controlled by q-axis current whereas the reactive power can be\ncontrolled by d-axis current. The phase angle of utility voltage\nis detected using software PLL (phased locked loop) in d-q synchronous\nreference frame. Proposed scheme gives a low cost and high quality\npower conversion solution for variable speed WECS.
URL	http://ieeexplore.ieee.org/lpdocs/epic03/wrapper.htm?arnumber=1179207
DOI	10.1109/APEC.2003.1179207