Title :
Novel Sag Detection Method for Line-Interactive Dynamic Voltage Restorer
Author :
Bae, Bumhee ; Jeong, J. ; Lee, J. ; Han, B.
Author_Institution :
Dept. of Electr. Eng., Myongji Univ., Yongin, South Korea
fDate :
4/1/2010 12:00:00 AM
Abstract :
This letter proposes a novel sag detection method for the line-interactive dynamic voltage restorer (DVR). The DVR with proposed detection method can compensate the voltage sag or interruption within 2-ms delay, which is faster than the existing delay time of 4 ms. The feasibility of proposed method was verified through computer simulations. The DVR with proposed detection method can effectively compensate the voltage sag or interruption for sensitive loads.
Keywords :
power supply quality; power system restoration; computer simulations; line-interactive dynamic voltage restorer; sag detection method; voltage sag compensation; Computer simulation; Delay effects; Detectors; Discrete Fourier transforms; Energy consumption; Fourier transforms; Phase detection; Phase locked loops; Switches; Voltage fluctuations; Discrete Fourier transform (DFT); dynamic voltage restorer (DVR); line-interactive; phase-locked loop; rms variation detector; voltage sag or interruption;
Journal_Title :
Power Delivery, IEEE Transactions on
DOI :
10.1109/TPWRD.2009.2037520
