Title:
ADAPTIVE MONITORING METHOD FOR GROUNDING CURRENT OF POWER CABLE
Document Type and Number:
WIPO Patent Application WO/2015/161651
Kind Code:
A1
Abstract:
An adaptive monitoring method for a grounding current of a power cable. The method comprises the steps of: setting a sampling reference; determining an impact factor set of sampled data; sampling a grounding current by a monitoring system for a grounding current of a power cable in real time; conducting digital filtering on data of the grounding current which is sampled in real time; processing the filtered sampled data using an adaptive algorithm; and uploading the processed sampled data to a background monitoring device for real-time monitoring. The method is different from an existing method in which a monitoring time interval is directly taken as a data sampling frequency. By means of the method, the problems that the energy loss is large and the amount of data monitoring information is small in a monitoring process can be solved, so that more than 50% of power consumption of a monitoring device can be effectively reduced, about 20% of resource occupancy of a server can be reduced, and the efficiency of external insulation state evaluation for a cable can be improved. Proposed is a new magnitude dividing standard, which can be combined with an actual operation line to conduct dynamic correction, and can effectively reduce objective interference in a process of weight determination, thus having higher monitoring accuracy.
Inventors:
YU TAO (CN)
ZHU HUI (CN)
DU JIAN (CN)
LU ZHENG (CN)
WANG HAO (CN)
ZHU HUI (CN)
DU JIAN (CN)
LU ZHENG (CN)
WANG HAO (CN)
Application Number:
PCT/CN2014/092357
Publication Date:
October 29, 2015
Filing Date:
November 27, 2014
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:
G01R19/00
Foreign References:
CN103926449A | 2014-07-16 | |||
CN201229389Y | 2009-04-29 | |||
CN103529344A | 2014-01-22 | |||
CN101201379A | 2008-06-18 | |||
CN103018630A | 2013-04-03 | |||
US20130063842A1 | 2013-03-14 | |||
EP2623998A2 | 2013-08-07 |
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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