Flying capacitor multicell converter based DVR with energy minimized compensation strategy

Seyed Hossein Hosseini, Arash Khoshkbar Sadigh, Ali Farshchi Tabrizi, Gevorg Gharehpetian

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

7 Scopus citations

Abstract

One of the major power quality problems in distribution systems are voltage sags. This paper deals with a dynamic voltage restorer (DVR) as one of the different solutions to compensate these sags and protect sensitive loads. However, the quality of DVR output voltage, such as THD, is important. This paper present a new configuration of DVR based on flying capacitor multicell (FCM) converter. The main properties of FCM converter, which causes increase in the number of output voltage levels, are transformer-less operation and natural self-balancing of flying capacitors voltages. To avoid any exchange of active power in compensation process, the proposed DVR is controlled by energy minimized compensation strategy which is explained in details for general unbalanced voltage sags. Also, the proposed voltage sag detection method as well as proposed DVR reference voltage determination method based on synchronous reference frame (SRF) is adopted as the control system. The proposed DVR is simulated using PSCAD/EMTDC software and simulation results are presented to validate its effectiveness.

Original languageEnglish (US)
Title of host publication6th International Conference on Electrical and Electronics Engineering, ELECO 2009
PagesI121-I125
StatePublished - Dec 14 2009
Event6th International Conference on Electrical and Electronics Engineering, ELECO 2009 - Bursa, Turkey
Duration: Nov 5 2009Nov 8 2009

Publication series

NameELECO 2009 - 6th International Conference on Electrical and Electronics Engineering

Conference

Conference6th International Conference on Electrical and Electronics Engineering, ELECO 2009
CountryTurkey
CityBursa
Period11/5/0911/8/09

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

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