Energies 2014, 7(2), 1003-1026; doi:10.3390/en7021003
Article

Voltage Support Provided by STATCOM in Unbalanced Power Systems

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Received: 5 December 2013; in revised form: 6 February 2014 / Accepted: 19 February 2014 / Published: 24 February 2014
(This article belongs to the Special Issue Smart Grids: The Electrical Power Network and Communication System)
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract: The presence of an unbalanced voltage at the point of common coupling (PCC) results in the appearance of a negative sequence current component that deteriorates the control performance. Static synchronous compensators (STATCOMs) are well-known to be a power application capable of carrying out the regulation of the PCC voltage in distribution lines that can suffer from grid disturbances. This article proposes a novel PCC voltage controller in synchronous reference frame to compensate an unbalanced PCC voltage by means of a STATCOM, allowing an independent control of both positive and negative voltage sequences. Several works have been proposed in this line but they were not able to compensate an unbalance in the PCC voltage. Furthermore, this controller includes aspects as antiwindup and droop control to improve the control system performance.
Keywords: PCC voltage control; STATCOM; unbalanced voltage
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MDPI and ACS Style

Rodríguez, A.; Bueno, E.J.; Mayor, Á.; Rodríguez, F.J.; García-Cerrada, A. Voltage Support Provided by STATCOM in Unbalanced Power Systems. Energies 2014, 7, 1003-1026.

AMA Style

Rodríguez A, Bueno EJ, Mayor Á, Rodríguez FJ, García-Cerrada A. Voltage Support Provided by STATCOM in Unbalanced Power Systems. Energies. 2014; 7(2):1003-1026.

Chicago/Turabian Style

Rodríguez, Ana; Bueno, Emilio J.; Mayor, Álvar; Rodríguez, Francisco J.; García-Cerrada, Aurelio. 2014. "Voltage Support Provided by STATCOM in Unbalanced Power Systems." Energies 7, no. 2: 1003-1026.

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