Title:
POWER QUALITY DISTURBANCE SOURCE LOCATING SYSTEM AND LOCATING METHOD
Document Type and Number:
WIPO Patent Application WO/2016/138750
Kind Code:
A1
Abstract:
A power quality disturbance source locating system and locating method thereof. The locating system comprises: a power quality management primary station and power quality online-monitoring devices (PQMD) connected to the primary stations via an Ethernet connection. The PQMDs are placed at each monitoring point of a transmission line of a radial power distribution system, and connected together via the Ethernet connection. When an actual disturbance event occurs in the system and is detected, the PQMD is configured to record a point in time at which a disturbance source is detected, and notify, over the Ethernet by broadcasting, the other PQMDs in the network to set the point in time as a reference to activate an disturbance wave recording system, wherein the disturbance wave recording system is configured to record sampled data of N cycles of waves before the point in time and N cycles of waves after the point in time, and transmit the sampled data in real time to the power quality management primary station, thereby establishing a system coverage matrix and a system direction matrix by mutual cooperation among the PQMDs, and locating the disturbance source.
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Inventors:
YU TAO (CN)
ZHUANG ZHONG (CN)
LI MING (CN)
LU ZHENG (CN)
ZHUANG ZHONG (CN)
LI MING (CN)
LU ZHENG (CN)
Application Number:
PCT/CN2015/088612
Publication Date:
September 09, 2016
Filing Date:
August 31, 2015
Export Citation:
Assignee:
CHANG ZHOU CURRENT SUPPLY COMPANY OF JIANGSU ELECTRIC POWER COMPANY (CN)
JIANGSU ELECTRIC POWER CO (CN)
STATE GRID CORP CHINA (CN)
JIANGSU ELECTRIC POWER CO (CN)
STATE GRID CORP CHINA (CN)
International Classes:
G01R31/08
Foreign References:
CN104635114A | 2015-05-20 | |||
CN204536472U | 2015-08-05 | |||
CN101267116A | 2008-09-17 | |||
US6360178B1 | 2002-03-19 | |||
CN103323738A | 2013-09-25 | |||
CN102608493A | 2012-07-25 | |||
CN104034982A | 2014-09-10 |
Attorney, Agent or Firm:
CHANGZHOU JIANGHAI YANGGUANG INTELLECTUAL PROPERTY AGENCY LTD. (CN)
常州市江海阳光知识产权代理有限公司 (CN)
常州市江海阳光知识产权代理有限公司 (CN)
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