DocumentCode :
2194702
Title :
Dynamic voltage restorer against balanced and unbalanced voltage sags: modelling and simulation
Author :
Nguyen, P.T. ; Saha, Tapan K.
Author_Institution :
Sch. of Information Technol. & Electr. Eng., Queensland Univ., Qld., Australia
fYear :
2004
fDate :
6-10 June 2004
Firstpage :
639
Abstract :
This paper presents modelling aspects of several types of dynamic voltage restorer (DVR) working against various voltage sags by simulation in PSCAD/EMTDC. It then provides analyses of working performance of the device, including capability and quality of compensation. Comparisons of working performance among these different types of DVR are also addressed. Significant simulation results show that these several types of the modelled device can work very well against balanced and/or unbalanced voltages caused by faults in a distribution system. Detailed analyses illustrate that with suitable parameter setting these devices can deal with different levels of voltage sag severity. In addition, appropriate ways to obtain a good quality output voltage by a DVR during voltage sag is also presented.
Keywords :
electrical faults; harmonic distortion; power supply quality; power system CAD; power system restoration; EMTDC; PSCAD; distribution system; dynamic voltage restorer; harmonic distortion; power quality; unbalanced faults; unbalanced voltage sags; Automatic voltage control; EMTDC; Harmonic distortion; PSCAD; Performance analysis; Power quality; Power system modeling; Power system restoration; Protection; Voltage fluctuations;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Power Engineering Society General Meeting, 2004. IEEE
Print_ISBN :
0-7803-8465-2
Type :
conf
DOI :
10.1109/PES.2004.1372883
Filename :
1372883
Link To Document :
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