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Voltage Sag Detection Technique for a Dynamic Voltage Restorer
IEEE Transactions on Industry Applications, 2003Dynamic voltage restorers (DVRs) are used to protect sensitive loads from the effects of voltage sags on the distribution feeder. This paper presents and verifies a novel voltage sag detection technique for use in conjunction with the main control system of a DVR.
Fitzer, Chris +2 more
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A new voltage reference generator for dynamic voltage restorer
2015 IEEE 24th International Symposium on Industrial Electronics (ISIE), 2015Dynamic voltage restore (DVR) is a well established power device able to compensate voltage disturbances, in especial voltage sags and swells, in the power system. Its main goal is to protect sensitive loads against these disturbances. For this purpose, the precise computation of the DVR compensation voltage reference is a important issue.
Gustavo Medeiros de Souza Azevedo +3 more
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Transformerless dynamic voltage restorer
IEE Proceedings - Generation, Transmission and Distribution, 2002The feasibility of achieving dynamic voltage restoration without the use of the injection transformer is investigated. The configuration of a proposed transformerless dynamic voltage restorer (DVR) features separate energy storage capacitors for phase-to-phase isolation, cascaded switches/inverters for the voltage boosting functions and a dynamic ...
B.H. Li, S.S. Choi, D.M. Vilathgamuwa
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The Review of Dynamic Voltage Restorer
Advanced Materials Research, 2013The dynamic voltage restorer (DVR), as an important electrical installation, can handle the voltage sags and stable the electrical power system. This paper talks about power system operation problems - Voltage dips, then briefly introduces Dynamic Voltage Restorer basic structure and principles, the then mainly complaint about the dynamic voltage ...
Xue Song Zhou, Hao Wu, You Jie Ma
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Dynamic Voltage Restorer For Voltage Sag Compensation
2005 International Conference on Power Electronics and Drives Systems, 2006The Dynamic Voltage Restorer (DVR) is a power electronic device that is used to inject 3-phase voltage in series and in synchronism with the distribution feeder voltages in order to compensate for voltage sag. In this paper the operation of a DVR is presented.
A.K. Ramasamy +3 more
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Mitigation of Voltage Sags by Dynamic Voltage Restorer
Journal of Automation and Control Engineering, 2014Voltage sag is the most severe type of power quality disturbance faced by many commercial and industrial customers. The proliferation of voltage sag load equipment used in industrial plants may cause tremendous economic and financial losses up to millions of dollars attributed to a single disruption.
Jeyagopi Raman, Arwinder Singh
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The influence of motor loads on the voltage restoration capability of the dynamic voltage restorer
PowerCon 2000. 2000 International Conference on Power System Technology. Proceedings (Cat. No.00EX409), 2002The performance of voltage sag mitigation devices such as the dynamic voltage restorer (DVR) has been analyzed in highly simplified electrical environment consisting of simple line and load models. The negative influences of dynamic motor loads on the existing voltage disturbance, such as post-fault sags, additional during-fault phase-angle deviations,
C.S. Chang, Y.S. Ho
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An Enhanced Voltage Sag Compensation Scheme for Dynamic Voltage Restorer
IEEE Transactions on Industrial Electronics, 2015This paper deals with improving the voltage quality of sensitive loads from voltage sags using a dynamic voltage restorer (DVR). The higher active power requirement associated with voltage phase jump compensation has caused a substantial rise in size and cost of the dc link energy storage system of DVR.
Abdul Mannan Rauf, Vinod Khadkikar
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Detailed Analysis of Load Voltage Compensation for Dynamic Voltage Restorers
TENCON 2006 - 2006 IEEE Region 10 Conference, 2006This paper presents detailed analysis of load voltage compensation for dynamic voltage restorer (DVR) that used for enhancing power quality. DVR is a custom power device used to correct voltage sag by injecting voltage as well as power into power distribution system.
Boonchiam, P. +2 more
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Sensitive loads voltage improvement using Dynamic Voltage Restorer
Proceedings of the 2011 International Conference on Electrical Engineering and Informatics, 2011High quality energy is necessary to end-users domestic or industrial customers of the public electric distribution networks. The quality of the electric power is characterized by the measurement and the analysis of the electric disturbances which make it possible to understand the origin of the disturbances, to evaluate their impact on the sensitive ...
Mohammed Nasser Tandjaoui +4 more
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