Mobile QR Code QR CODE : The Korean Institute of Power Electronics
Title Power Control of Three Phase PWM Converter for Small-scale Wind Power using Flux Weakening Control in Over Wind Speed Region
Authors Hyun-Keun Ku ; Jae-Heung Kim ; Hyung-Uk Lee ; Jang-Mok Kim
DOI 10.6113/TKPE/2014.19.2.149
Page pp.149-156
ISSN 1229-2214
Keywords small-scale wind power; three phase PWM converter; battery charging; flux weakening; over wind speed
Abstract This paper proposes the battery charging algorithm for small-scale wind power generator using three phase PWM converter. it is impossible to control output power of the converter in over wind speed region since back EMF of PMSG is higer than battery voltage. Therefore, battery charging algorithm is proposed to expand battery charging over wind speed region. The suggested method is using the q-axis current for battery charging in the rated wind speed region. In the over wind speed region after it lower back EMF of PMSG using d-axis current it can control output power of the converter. The validity of the proposed algorithm are verified by experiments.