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Economic assessment of voltage and reactive power control provision by wind farms

E. Saiz, E. Lobato, I. Egido, L. Rouco

The aim of this paper is to quantify the cost of the provision of voltage control by wind power generation. A methodology for evaluating the economic impact of providing different types of voltage control is proposed. This evaluation examines the increase in costs caused by the change in active power losses due to the provision of wind farms voltage control. These losses are computed for different controllers: (a) wind farms are operated at a fixed power factor, (b) wind farms provide proportional voltage control, and (c) wind farms provide reactive power to minimize power losses. Furthermore, these three possibilities are compared with the option of adding flexible alternating current transmission system devices, which are another alternative for supporting the grid by controlling voltage. The methodology outlined is applied to a real and representative Spanish wind harvesting network.

Keywords: losses reduction; voltage control; wind power

Wind Energy. Volume: 18 Issue: 5 Pages: 851-864

JCR Impact Factor and Scopus quartile: 2.891 - Q1 (2015); 2.938 - Q2 (2017).

DOI reference: DOI icon 10.1002/we.1734    

Published on paper: May 2015. Published on-line: March 2014.

E. Saiz, E. Lobato, I. Egido, L. Rouco. Economic assessment of voltage and reactive power control provision by wind farms. Wind Energy. vol. 18, no. 5, pp. 851-864, May 2015. [Online: March 2014]

    Topics research:
  • *Steady-state: load flows, analysis of power system constraints, optimal load flows, voltage control ancilliary service,short-circuits, protections in transmission and ditribution networks

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