Title:
TEST SYSTEM FOR SIMULATING DIRECT-CURRENT BIAS OF CONVERTER TRANSFORMER
Document Type and Number:
WIPO Patent Application WO/2015/196747
Kind Code:
A1
Abstract:
A test system for simulating the direct-current bias of a converter transformer. The test system comprises an RTDS simulation system of a direct-current power transmission system for simulating the direct-current bias operating condition of the converter transformer, wherein the RTDS simulation system is connected to an RTDS real-time digital simulator and a converter transformer protection device; and a bias resistor is connected in series between a neutral point of a star converter transformer of a unipolar and/or bipolar low-end valve group and a direct-current grounding electrode. By connecting the bias resistor in series between the neutral point of the star converter transformer of the unipolar and/or bipolar low-end valve group and the direct-current grounding electrode, the test system introduces a direct current of the grounding electrode to the neutral point of the Vn/V converter transformer to simulate a phenomenon of the direct-current bias of the converter transformer caused by the fact that the direct current invades the converter transformer in an actual direct-current power transmission system. When the system is used to simulate the direct-current bias of the converter transformer, the realization method is simple and reliable, and the realization threshold is relatively low.
Inventors:
ZHANG HONGYUE (CN)
XIONG ZHANGXUE (CN)
NIU ZHILEI (CN)
MA YULONG (CN)
HUANG JINHAI (CN)
SONG HONGTAO (CN)
ZHAO YANRU (CN)
XU YUJIE (CN)
HU XIAOJING (CN)
LIU JIAJUN (CN)
DU YANHUI (CN)
LU ZHENYU (CN)
CAO XUELAN (CN)
WANG ERJUN (CN)
AN YOUBIN (CN)
XIONG ZHANGXUE (CN)
NIU ZHILEI (CN)
MA YULONG (CN)
HUANG JINHAI (CN)
SONG HONGTAO (CN)
ZHAO YANRU (CN)
XU YUJIE (CN)
HU XIAOJING (CN)
LIU JIAJUN (CN)
DU YANHUI (CN)
LU ZHENYU (CN)
CAO XUELAN (CN)
WANG ERJUN (CN)
AN YOUBIN (CN)
Application Number:
PCT/CN2014/093376
Publication Date:
December 30, 2015
Filing Date:
December 09, 2014
Export Citation:
Assignee:
STATE GRID CORP CHINA (CN)
XJ GROUP CORP (CN)
XJ ELECTRIC CO LTD (CN)
STATE POWER ECONOMIC RES INST (CN)
XJ GROUP CORP (CN)
XJ ELECTRIC CO LTD (CN)
STATE POWER ECONOMIC RES INST (CN)
International Classes:
G01R31/00
Foreign References:
| CN101915882A | 2010-12-15 | |||
| CN103577633A | 2014-02-12 | |||
| CN202503278U | 2012-10-24 | |||
| CN202503433U | 2012-10-24 | |||
| CN102129000A | 2011-07-20 |
Attorney, Agent or Firm:
ZHENGZHOU RUIXIN INTELLECTUAL PROPERTY AGENCY CO., LTD (CN)
郑州睿信知识产权代理有限公司 (CN)
郑州睿信知识产权代理有限公司 (CN)
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