Study of fuzzy based control algorithm for dynamic voltage restorer

Seyedfoad Taghizadeh*, Nadia Mei Lin Tan, Masoud Karimi-Ghartemani

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)


Voltage sags appear in a short time period between half a cycle and 1 minute. The control system of a dynamic voltage restorer should have a fast yet smooth response in detecting, synchronizing, and injecting the appropriate level of compensating voltage to protect sensitive electrical components against probable damages. Moreover, an optimal strategy for the energy storage usage is essential to achieve an extended lifetime for it. This paper proposes an improved control algorithm for a dynamic voltage restorer to address these two issues. The proposed control system significantly reduces the detection and synchronization times during voltage sag by combining the fuzzy logic and the enhanced phase lock loop concepts. Furthermore, an auxiliary control system is introduced to manage the injection strategies during different types of faults to extend the lifetime of the battery.

Original languageEnglish
Pages (from-to)3600-3617
Number of pages18
JournalInternational Transactions on Electrical Energy Systems
Issue number12
Publication statusPublished - Dec 2015
Externally publishedYes


  • DVR
  • power quality
  • EPLL
  • fuzzy logic
  • sensitive load protection
  • battery lifetime

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