Method to select optimal device for mitigating voltage sag based on voltage sag assessment

Kyebyung Lee, Jong Hoon Han, Gilsoo Jang, Chang Hyun Park

Research output: Contribution to journalArticle

1 Citation (Scopus)


This paper presents a method to select optimal device for mitigating voltage sags. The method is based on economic evaluation and voltage sag assessment involving sag duration as well as magnitude. The economic evaluation is performed by using the operation cost and economic benefit of the mitigation devices. The optimal device can be determined from the values of NPV (net present value) which is widely accepted in cost-benefit analysis. The proposed method can help sensitive customers to select optimal mitigation device. In this paper, the case study considering two sensitive customers was performed by using the proposed method.

Original languageEnglish
Pages (from-to)29-34
Number of pages6
JournalTransactions of the Korean Institute of Electrical Engineers
Issue number1
Publication statusPublished - 2015 Jan 1



  • Economic assessment
  • NPV (net present value)
  • Power quality
  • Voltage sag
  • Voltage sag mitigation

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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