Publication: Study of fuzzy based control algorithm for dynamic voltage restorer
Date
2015
Authors
Taghizadeh S.
Tan N.M.L.
Karimi-Ghartemani M.
Journal Title
Journal ISSN
Volume Title
Publisher
John Wiley and Sons Ltd
Abstract
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. � 2015 John Wiley & Sons, Ltd.
Description
Algorithms; Control systems; Damage detection; Power quality; Voltage regulators; Voltage stabilizing circuits; Battery lifetime; DVR; Dynamic voltage restorer (DVR); Electrical components; EPLL; Improved control algorithms; Phase lock loop (PLL); Sensitive loads; Fuzzy logic