METHOD FOR INHIBITING MULTIPLE CONVERTER STATIONS INTO PASSIVE CONTROL MODE IN ISLAND STATE

Title:

METHOD FOR INHIBITING MULTIPLE CONVERTER STATIONS INTO PASSIVE CONTROL MODE IN ISLAND STATE

Document Type and Number:

WIPO Patent Application WO/2016/091060

Kind Code:

A1

Abstract:

Provided is a method for inhibiting multiple converter stations into a passive control mode in an island state by means of dividing the converter stations into groups beforehand. The grouping principle is grouping the converter stations together which are connected by alternating current lines on the alternating current side under a normal operation condition. The priorities of the converter stations in each group are set beforehand for setting the relevant fixed values of the converter stations for island detection. The setting principle is that the higher the priority is, the more sensitive the relevant fixed value of the converter station is, and the easier it is for the corresponding converter station to detect the island state. The converter station having detected the island state would go into the passive control mode only when all the other converter stations of higher priority than that of said converter station in the same group send enabling signals.

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Inventors:

DONG YUNLONG (CN)
TIAN JIE (CN)
CAO DONGMING (CN)
LI HAIYING (CN)
DING JIUDONG (CN)
HU ZHAOQING (CN)
LI GANG (CN)
LIU HAIBIN (CN)
LU YU (CN)

Application Number:

PCT/CN2015/095373

Publication Date:

June 16, 2016

Filing Date:

November 24, 2015

Export Citation:

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Assignee:

NR ELECTRIC CO LTD (CN)
NR ENGINEERING CO LTD (CN)

International Classes:

H02J3/00

Foreign References:

CN103414182A	2013-11-27
CN103269083A	2013-08-28
JP2011114899A	2011-06-09

Other References: