October 2017

Conference Paper

Three-phase short-circuit fault implementation in converter based transmission line emulator

By:
Zhang, Shuoting; Liu, Bo; Zheng, Sheng ; Ma, Yiwei; Wang, Fei ; Tolbert, Leon M
Page Number:
2914-2920
Book Title:
2017 IEEE Energy Conversion Congress and Exposition (ECCE)
Publication Date:
October 2017
Conference Name:
2017 IEEE Energy Conversion Congress and Exposition (ECCE)
Conference Location:
Cincinnati, Ohio, United States of America
Conference Sponsor:
IEEE
View DOI Listing:
https://doi.org/10.1109/ECCE.2017.8096538

Abstract

A hardware test-bed (HTB) has been developed to realize power system emulation by mimicking the system components with universal three-phase voltage source converters (VSCs). The VSC-based transmission line emulator has also been successfully developed to flexibly represent interconnected ac lines under normal operating conditions. As the most serious short-circuit fault condition, the three-phase short-circuit fault emulation is essential for power system studies. This paper proposes a model to realize the three-phase short-circuit fault emulation within the emulated transmission line. At the same time, a combination method is proposed to eliminate the undesired transients caused by the current reference step changes while switching between the fault state and normal state.