The Power Defends System of Study—The Subprojects 7：Research of The Special Protection Strategy
Date Issued
2004-07-31
Date
2004-07-31
Author(s)
DOI
922213E002102
Abstract
The time for this project is as long as three
years. The main job for this year is to discuss the
low-frequency oscillation situation of Taiwan
power system in year 2003 and 2006 and propose
appropriate advice and improvement methods.
Now the discussion of that portion of year 2003
has been completed and that of year 2006 is
expected to be finished until the end of this study
year. The software needed includes PSS/E of PTI
and SSSP of EPRI. If there is any kind of
equipment model that is required but not included
in the software package, the user-defined model
such as the exciter user-defined model must be
created. After solving all the modeling problems,
observe the low-frequency oscillation situation of
the system with and without power system
stabilizers (PSSs) between 0 and 3 Hz first. Then
use eigenvalues and right eigenvectors to
determine the oscillation modes and examine the
participation factors of those participating units
with power system stabilizers to see if it is
necessary to install PSSs on those participating
units. The above analysis results need to be
verified by time-domain analysis. If any oscillation
mode with damping ratio not larger than 0.05 is
discovered, solution will be addressed according to
the specific situation of each mode, involving the
decision of whether it’s necessary to install new
PSSs or not to make the dynamic stability of the
entire Taiwan power system meet the
requirements.
Subjects
exciter
power system stabilizer
dynamic stability
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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