Title :
Modeling and analysis of a 24-pulse dynamic voltage restorer in a distribution system
Author :
Hannan, M.A. ; Mohamed, A.
Author_Institution :
Dept. of Electr., Electron. & Syst. Eng., Universiti Kebangsaan Allalaysia, Selangor, Malaysia
Abstract :
The dynamic voltage restorer (DVR) is a power quality device that has gained an increasing role in protecting industries against disturbances such as voltage sags and swells related to remote system faults. This paper presents a simulation study on the interaction between the DVR and the distribution system. The multilevel, twenty-four pulse DVR model is used in the simulations which are implemented in PSCAD/EMTDC program. For the DVR control strategy, the sinusoidal pulse width modulation technique is used. Various issues have been addressed in the simulation studies such as, the effectiveness of DVR in mitigating voltage sags, impact of phase shift during a voltage sag on sizing of DVR, harmonic reduction in the DVR and influence of induction motor loads on the voltage sag compensation capability.
Keywords :
EMTP; commutation; harmonics suppression; power distribution faults; power supply quality; power system harmonics; power system restoration; power system simulation; pulse width modulation; thyristor applications; 24-pulse dynamic voltage restorer; PSCAD/EMTDC program; anti-parallel diodes; distribution system; disturbances protection; harmonic reduction; induction motor loads; industries; phase shift; power quality device; remote system faults; self-commutated GTO switches; simulations; sinusoidal pulse width modulation; voltage sag compensation; voltage sags; voltage swells; EMTDC; Induction motors; PSCAD; Power quality; Power system modeling; Power system protection; Power system restoration; Pulse width modulation; Space vector pulse width modulation; Voltage fluctuations;
Conference_Titel :
Research and Development, 2002. SCOReD 2002. Student Conference on
Print_ISBN :
0-7803-7565-3
DOI :
10.1109/SCORED.2002.1033090
