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Optimal selection of voltage sag mitigation solution based on event tree method

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4 Author(s)
Yasir, M. ; Department of Electrical Engineering at Aalto University, Espoo, Finland ; Kazemi, S. ; Lehtonen, M. ; Fotuhi-Firuzabad, M.

Modern commercial operations consist of critical equipments that are more susceptible to voltage sag events. The consistent and smooth running of these operations is often disrupted by voltage sags. Diverse range of solutions exist which can enhance the ride through capability of sensitive devices. This paper presents various voltage dip mitigation solutions and a methodology for analyzing the effectiveness and practical viability of these solutions. The proposed approach is based on event tree method which gives an indication about the extent of process interruption in the event of voltage sags. A case study is conducted in the paper with different combinations of practical mitigation solutions against voltage sags, in order to illustrate the applicability of the proposed approach.

Published in:

Electric Power Quality and Supply Reliability Conference (PQ), 2012

Date of Conference:

11-13 June 2012