A Study of Defense System Against Power System Collapse
Date Issued
2001-07
Date
2001-07
Author(s)
DOI
892218E002044
Abstract
This project proposes a defense system to
prevent power system blackout due to a sequence of relay
trip events based on Phasor Measurement Units (PMUs).
In a contool center, we use PMUs to monitor the
generators and the major EHV transmission lines of a power
system, and apply an instability prediction algorithm for
initiating a system protection schemes(SPS) to avoid a
sequence of relay trip events whenever necessary. When a
fault happens, we group the generators swinging
coherently and reduce the system to One-Machine-Infinite-
Bus(OMIB)system. The remedial control actions consist of
load shedding and generation tripping. The strategy for
determining the amount of remedial control actions is a
proposed relay setting limited equal-area-criterion for OMIB.
The proposed scheme is tested with Taipower system,
which experienced a severe fault at a major EHV and caused
a successive relay trips resulting in system north and center
area blackout on July 29,1999(729 event).
Subjects
相量量測單元
大停電
電力防衛系統
特殊保護系統
Publisher
臺北市：國立臺灣大學電機工程學系暨研究所
Type
report
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