Toward Simulation-Free Estimation of Critical Clearing Time
Name
1506.07152v2.pdf
Description
Accepted version
Size
279.68 KB
Format
Adobe PDF
Checksum (MD5)
77e89d5dfdf31f143e296a122b70ac34
Author(s)
Vu, Thanh Long
Al Araifi, Surour M.
El Moursi, Mohamed S.
Turitsyn, Konstantin
Date Issued
November 2016
Journal
IEEE Transactions on Power Systems
Publisher
Institute of Electrical and Electronics Engineers
Citation
T. L. Vu, S. M. Al Araifi, M. S. El Moursi and K. Turitsyn, "Toward Simulation-Free Estimation of Critical Clearing Time," in IEEE Transactions on Power Systems, vol. 31, no. 6, pp. 4722-4731, Nov. 2016.
Version
Author's final manuscript
Abstract
Contingency screening for transient stability of large-scale, strongly nonlinear, interconnected power systems is one of the most computationally challenging parts of Dynamic Security Assessment and requires huge resources to perform time-domain simulations-based assessment. To reduce computational cost of time-domain simulations, direct energy methods have been extensively developed. However, these methods, as well as other existing methods, still rely on time-consuming numerical integration of the fault-on dynamics. This task is computationally hard, since possibly thousands of contingencies need to be scanned and thousands of accompanied fault-on dynamics simulations need to be performed and stored on a regular basis. In this paper, we introduce a novel framework to eliminate the need for fault-on dynamics simulations in contingency screening. This simulation-free framework is based on bounding the fault-on dynamics and extending the recently introduced Lyapunov Function Family approach for transient stability analysis of structure-preserving model. In turn, a lower bound of the critical clearing time is obtained by solving convex optimization problems without relying on any time-domain simulations. A comprehensive analysis is carried out to validate this novel technique on a number of IEEE test cases.
MIT Department
Massachusetts Institute of Technology. Department of Mechanical Engineering
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Creative Commons Attribution-Noncommercial-ShareAlike
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DOI of Published Version
https://doi.org/10.1109/tpwrs.2016.2523265
