A Matrix-Perturbation-Theory-Based Optimal Strategy For Small-Signal Stability Analysis Of Large-Scale Power Grid
Keywords
2nd order sensitivity; Matrix perturbation theory; Optimal strategy; Small-signal stability
Abstract
In this paper, a sensitivity matrix based approach is proposed to improve the minimum damping ratio. The proposed method also avoids burdensome deviation calculations of damping ratio of large-scale power grids when compared to the Small-Signal-Stability Constrained Optimal Power Flow (SSSC-OPF) approach. This is achieved using the Matrix Perturbation Theory (MPT) to deal with the 2nd order sensitivity matrices, and the establishment of an optimal corrective control model to regulate the output power of generating units to improve the minimum damping ratio of power grids. Finally, simulation results on the IEEE 9-bus, IEEE 39-bus and a China 634-bus systems show that the proposed approach can significantly reduce the burden of deviation calculation, while enhancing power system stability and ensuring calculation accuracy.
Publication Date
12-1-2018
Publication Title
Protection and Control of Modern Power Systems
Volume
3
Issue
1
Document Type
Article
Personal Identifier
scopus
DOI Link
https://doi.org/10.1186/s41601-018-0107-z
Copyright Status
Unknown
Socpus ID
85058403207 (Scopus)
Source API URL
https://api.elsevier.com/content/abstract/scopus_id/85058403207
STARS Citation
Yang, Yude; Zhao, Jixing; Liu, Hui; Qin, Zhijun; and Deng, Jun, "A Matrix-Perturbation-Theory-Based Optimal Strategy For Small-Signal Stability Analysis Of Large-Scale Power Grid" (2018). Scopus Export 2015-2019. 8431.
https://stars.library.ucf.edu/scopus2015/8431