Enhanced wind turbine generator fault ride‐through capability by using hybrid on‐load tap changer

Authors:
Open Access
Publisher website
Google Scholar
Abstract
Low‐voltage ride‐through (LVRT) compliance of wind energy conversion systems is one of the significant concerns for both the wind industry and the system operator. In this study, power electronic‐assisted on load tap changer (OLTC) is proposed as a pragmatic solution to enhance LVRT performance of wind turbine generator (WTG). Furthermore, a coordinated control strategy between OLTC and WTG controller is proposed to mitigate post‐fault over‐voltage issues that are encountered due to the relatively slow dynamics of hybrid OLTC. The results suggest that employing hybrid OLTC does not only improve LVRT compliance of WTG but also significantly improve voltage dip‐induced delayed active power recovery of WTG.

This publication has 30 references indexed in Scilit: