Control strategies for dynamic voltage restorer compensating voltage sags with phase jump

J. G. Nielsen, F. Blaabjerg, N. Mohan

Research output: Chapter in Book/Report/Conference proceedingConference contribution

201 Scopus citations

Abstract

Voltage sags are an important power quality problem and the dynamic voltage restorer is known as an effective device to mitigate voltage sags. In this paper different control strategies for dynamic voltage restorer are analyzed with emphasis put on the compensation of voltage sags with phase jump. Voltage sags accompanied by a phase jump are in some cases more likely to trip loads and a satisfactory voltage compensation are more difficult to achieve. Different control methods to compensate voltage sags with phase jump are here proposed and compared. Two promising control methods are tested with simulations carried out in Saber and finally tested on a 10 kVA rated Dynamic Voltage Restorer in the laboratory. Both methods can be used to reduce load voltage disturbances caused by voltage sags with phase jump. One method completely compensates the phase jump, which is the best solution for very sensitive loads. The second method does only partly compensate the phase jump, but it is expected to have a better performance in compensating a broader range of voltage sags.

Original languageEnglish (US)
Title of host publicationConference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC
Pages1267-1273
Number of pages7
Volume2
StatePublished - Jan 1 2001
Event16th Annual IEEE Applied Power Electronics Conference and Exposition - Anaheim, CA, United States
Duration: Mar 4 2001Mar 8 2001

Other

Other16th Annual IEEE Applied Power Electronics Conference and Exposition
Country/TerritoryUnited States
CityAnaheim, CA
Period3/4/013/8/01

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