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| 00-01 | Avoiding and Suppressing Oscillations
This is the final report for the 1997-99 PSerc project on interarea electric power
system oscillations. The main project objective was to determine the feasibility of
computations to avoid or suppress large scale system oscillations. The main accomplishments of the project are:
1. Discovery and initial analysis of a new mechanism for oscillations in which a
strong resonance between two oscillatory modes is a precursor to the oscillations.
2. Assessment of the computational speed of advanced eigenvalue algorithms for
oscillations and its scaling with system size.
3. Analysis of a steady state “angle collapse” instability preceded by resonance in
a low frequency oscillatory mode and caused by increasing interarea transfer.
4. Improved eigenvalue sensitivity formulas taking account of the different time
scales of oscillations and operator actions.
5. New methods for quantifying the robustness of eigenvalues to uncertainties
such as poorly known load or generator data.
6. Nine, fourteen and thirty seven bus systems oscillation test cases.
7. Foundational workto wards a new generation of dynamics software with algebraically
assisted numerics.
8. Outline of an opportunity for the combined use of system measurements and
model based software for real time control of oscillations.
9. Identification of key barriers to developing software to assist the real time
suppression and avoidance of oscillations.
Submitted: January 2000. Published: May 16, 2001.
PSERC Project Report S-3. Uploaded: May 5, 2003. | Ian Dobson | 7/14/2009 | 981.3k | PDF |
| 00-08 | Reactive Power Support Services in Electricity Markets
This project investigated methods
for
establishing justifiable costs for
ancillary services. The current work
focused on the issues of costing
reactive power and voltage
control. This included what has been
called congestion charges
related to the limitations of
transfers due to inadequate voltage
support at either load or generation
sites. The final report includes on
results on these issues as well as
reactive market power, reactive loss
allocation, and dynamic aspects of
reactive power supply.
This document contains the project's
final report.
Submitted: August 2000
Published: April 2001
| Sauer, Overbye, Gross, Alvarado, Oren, and Momoh | 6/10/2003 | 438.5k | PDF |
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