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1. (WO2016060319) REACTIVE POWER COMPENSATION APPARATUS AND REACTIVE POWER COMPENSATION METHOD

Pub. No.:    WO/2016/060319    International Application No.:    PCT/KR2014/010658
Publication Date: Fri Apr 22 01:59:59 CEST 2016 International Filing Date: Sat Nov 08 00:59:59 CET 2014
IPC: H02J 3/16
G05F 1/70
Applicants: CST CO., LTD
창명제어기술(주)
Inventors: KIM, Jeong Woo
김정우
JEONG, Jin Young
정진영
Title: REACTIVE POWER COMPENSATION APPARATUS AND REACTIVE POWER COMPENSATION METHOD
Abstract:
A reactive power compensation apparatus of the present invention comprises: a sensing unit for sensing the power factor of a three-phase power supply path; a reactive compensation switching unit for adjusting the number of capacitors coupled to each phase of the three-phase power supply path and for compensating reactive power of the power supplied to the three-phase power supply path; and a switching control unit for controlling a switching operation of the reactive compensation switching unit according to the sensed power factor, wherein the reactive compensation switching unit may comprise compensation capacitors connecting between the power supply paths of the respective phases and a neutral line; a semi-conductor switch for switching the connection of the compensation capacitors; and two or more unit control modules having a harmonic reduction reactor that is connected in series with the semi-conductor switch.