Online coherence identification using dynamic time warping for controlled islanding

Autor: Hasan Ul Banna, Zhe Yu, Di Shi, Zhiwei Wang, Dawei Su, Chunlei Xu, Sarika Khushalani Solanki, Jignesh M. Solanki
Jazyk: angličtina
Rok vydání: 2018
Předmět:
Zdroj: Journal of Modern Power Systems and Clean Energy, Vol 7, Iss 1, Pp 38-54 (2018)
Druh dokumentu: article
ISSN: 2196-5625
2196-5420
DOI: 10.1007/s40565-018-0443-z
Popis: Abstract Controlled islanding is considered to be the last countermeasure to prevent a system-wide blackout in case of cascading failures. It splits the system into self-sustained islands to maintain transient stability at the expense of possible loss of load. Generator coherence identification is critical to controlled islanding scheme as it helps identify the optimal cut-set to maintain the transient stability of the post-islanding systems. This paper presents a novel approach for online generator coherency identification using phasor measurement unit (PMU) data and dynamic time warping (DTW). Results from the coherence identification are used to further cluster non-generator buses using spectral clustering with the objective of minimizing power flow disruptions. The proposed approach is validated and compared to existing methods on the IEEE 39-bus system and WECC 179-bus system, through which its advantages are demonstrated.
Databáze: Directory of Open Access Journals
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