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1. (WO2018033058) SERIES COMPENSATION DEVICE

Pub. No.:    WO/2018/033058    International Application No.:    PCT/CN2017/097469
Publication Date: Fri Feb 23 00:59:59 CET 2018 International Filing Date: Wed Aug 16 01:59:59 CEST 2017
IPC: H02J 3/18
Applicants: NR ELECTRIC CO., LTD
南京南瑞继保电气有限公司
NR ENGINEERING CO., LTD
南京南瑞继保工程技术有限公司
Inventors: HUANG, Ruhai
黄如海
LU, Yu
卢宇
DONG, Yunlong
董云龙
PAN, Lei
潘磊
QIU, Defeng
邱德峰
JIANG, Chongxue
姜崇学
LU, Jiang
鲁江
LI, Gang
李钢
HU, Zhaoqing
胡兆庆
WANG, Nannan
汪楠楠
DING, Jiudong
丁久东
WANG, Ke
王柯
HU, Xianlai
胡仙来
WANG, Hui
王辉
SUI, Shunke
随顺科
Title: SERIES COMPENSATION DEVICE
Abstract:
A series compensation device, including at least two voltage source converters, at least two three-phase transformers and at least one three-phase reactor. The voltage source converters are connected in series to a multi-circuit line by means of the three-phase transformers, and alternating-current sides of various voltage source converters are connected to each other by means of the three-phase reactor, so that the function of equally dividing a system power flow by a plurality of converters is realized. The device can be independently installed in a power transmission system to be used as a static synchronous series compensator, and can also be used as a component of a unified power flow controller, a convertible static compensator, an interline power flow controller and a unified power quality conditioner to be connected to a power transmission system device in series. The device can save the capacity of a converter, improve the application efficiency of the series compensation device, and reduce the cost and the floor area.