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High-efficiency voltage regulator for rural networks

P. Frías, C.A. Platero, D. Soler, F. Blázquez

This paper presents a high-efficiency voltage regulator, which combines robustness, low costs and easy maintenance without power electronics components. These characteristics make it suitable for rural networks, where investments and operational cost in power quality improvement are limited. The regulator consists of a multiwinding reduced-power transformer, and provides serial voltage compensation. Different voltage compensation steps are obtained by modifying the connection and the polarity between the primary and secondary windings. The transformer design has been optimized to obtain a high-efficiency and low-cost regulator. An automatic controller monitors the output voltage and sets the optimal compensation step. At present more than 400 units of the voltage regulator are in operation. Field test results are presented to show the operation of the voltage regulator.

Keywords: Power distribution control, power quality, power transformers, rural areas, voltage control

IEEE Transactions on Power Delivery. Volume: 25 Issue: 3 Pages: 1666-1672

JCR Impact Factor and Scopus quartile: JCR impact factor: 1.415 (2010); 4.415 (2018).

DOI reference: DOI icon 10.1109/TPWRD.2010.2046683    

Published on paper: July 2010.

P. Frías, C.A. Platero, D. Soler, F. Blázquez. High-efficiency voltage regulator for rural networks. IEEE Transactions on Power Delivery. vol. 25, no. 3, pp. 1666-1672, July 2010.

    Topics research:
  • *Smart grids

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