A New Method for Detecting Input Phase Lack of Power Unit in Cascade High Voltage Inverter

DOI

10.2991/amee-17.2017.23How to use a DOI?

Keywords

component; Cascaded High Voltage Inverter; Phase Lack; Power Unit

Abstract

This paper presents a detection method of input phase lack of power unit in cascaded high voltage inverter. The method determine the input phase lack of power unit in cascaded high voltage inverter through the detection of primary negative sequence current of phase shifting transformer. The start-up threshold is set by the negative sequence input current of the cascaded high voltage inverter and input phase lack is judged by the actual output power. The new phase detection method does not need to add extra circuit of all power units to realize the phase detection in input side of each power unit, so that the complexity of fault detection circuit is reduced, thus the reliability of high voltage converter is increased.

Copyright

© 2017, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Shibao Qian
AU  - Chunsong Liu
AU  - Xuan Hu
PY  - 2017/09
DA  - 2017/09
TI  - A New Method for Detecting Input Phase Lack of Power Unit in Cascade High Voltage Inverter
BT  - Proceedings of the 2017 2nd International Conference on Automation, Mechanical and Electrical Engineering (AMEE 2017)
PB  - Atlantis Press
SP  - 110
EP  - 112
SN  - 2352-5401
UR  - https://doi.org/10.2991/amee-17.2017.23
DO  - 10.2991/amee-17.2017.23
ID  - Qian2017/09
ER  -