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1. (WO2018025307) ELECTRIC POWER CONTROL SYSTEM, AND CONTROL DEVICE

Pub. No.:    WO/2018/025307    International Application No.:    PCT/JP2016/072510
Publication Date: Fri Feb 09 00:59:59 CET 2018 International Filing Date: Tue Aug 02 01:59:59 CEST 2016
IPC: H02M 5/27
H02J 3/34
H02J 3/36
H02M 7/48
Applicants: MITSUBISHI ELECTRIC CORPORATION
三菱電機株式会社
Inventors: FUJISAWA, Takayuki
藤澤 昂征
ISHIDA, Keisuke
石田 圭佑
Title: ELECTRIC POWER CONTROL SYSTEM, AND CONTROL DEVICE
Abstract:
An electric power control system (1000), provided with: a first AC/DC converter (5A); a second AC/DC converter (5B); a first switch (sw1) connected between the first AC/DC converter and a first power transmission line (2A) of a first electric power system (1A) having a first system frequency; a second switch (sw2) connected between the first power transmission line and the second AC/DC converter; a third switch (sw3) connected between the first AC/DC converter and a second power transmission line (2B) of a second electric power system (1B) having a second system frequency; a fourth switch (sw4) connected between the second power transmission line and the second AC/DC converter; a fifth switch (sw5) connected between the first AC/DC converter and the second AC/DC converter; and a control device (10). When the first and second AC/DC converters are to be operated as back-to-back (BTB) AC/DC converters, the control device controls at least the fifth switch so as to be in a closed state, and when the first and second AC/DC converters are to be operated as reactive power compensation devices, the control device controls at least the fifth switch so as to be in an open state.