Title :
A voltage regulator using multi-parallel-connected series-voltage compensators
Author :
Cheung, Victor Sui-pung ; Chung, Henry Shu-Hung ; Lo, Alan Wai-lun
Author_Institution :
Centre for Smart Energy Conversion & Utilization Res., City Univ. of Hong Kong, Kowloon Tong, China
Abstract :
A modular and scalable concept of voltage regulation for enhancing service continuity and increasing power rating in single-phase series voltage regulator is proposed. It is based on paralleling multiple series-voltage compensators, namely Multi-Parallel-Connected SeriesVoltage Compensator (MSVC), to perform output voltage regulation. The output current of each compensator is coupled to another one through a coupling transformer. Thus, the load current is shared near-equally among the compensators. The operating principle, the steady-state and transient current-sharing characteristics will be described and discussed. A 3kVA MSVC test bed with three parallel-connected compensator units has been built and evaluated.
Keywords :
voltage control; voltage regulators; MSVC; coupling transformer; load current; multiparallel-connected series-voltage compensators; multiple series-voltage compensators; output voltage regulation; parallel-connected compensator units; service continuity enhancement; single-phase series voltage regulator; Couplings; Regulators; Static VAr compensators; Steady-state; Switches; Transient analysis; Voltage control;
Conference_Titel :
Energy Conversion Congress and Exposition (ECCE), 2014 IEEE
Conference_Location :
Pittsburgh, PA
DOI :
10.1109/ECCE.2014.6953902
