Publisher : The Korean Institute of Electrical Engineers
DOI : 10.5370/JEET.2015.10.3.795
Title & Authors
An Adaptive Autoreclosure Scheme with Reference to Transient Stability for Transmission Lines Heo, Jeong-Yong; Oh, Yun-Sik; Seo, Hun-Chul; Kim, Chul-Hwan;
Autoreclosure provides a means of improving power transmitting ability and system stability. Conventional reclosure adopts the fixed dead time interval strategy, where the reclosure is activated after a time delay to restore the system to normal as quickly as possible without regard to the system conditions. However, these simple techniques cannot provide optimal operating performance. This paper presents an adaptive autoreclosure algorithm including variable dead time, optimal reclosure, phase-by-phase reclosure and emergency extended equal-area criterion (EEEAC) algorithm in order to improve system stability. The reclosure algorithm performs the operations that are attuned to the power system conditions. The proposed adaptive reclosure algorithm is verified and tested using ATP/EMTP MODELS, and the simulation results show that the system oscillations are reduced and the transient stability is enhanced by employing the proposed adaptive reclosure algorithm.
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