Voltage Support Provided by STATCOM in Unbalanced Power Systems

Ana Rodríguez, Emilio J. Bueno, Álvar Mayor, Francisco J. Rodríguez and Aurelio García-Cerrada
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Ana Rodríguez: Gamesa Electric; Avda. Fuentemar, 5, Madrid, Coslada 28823, Spain
Emilio J. Bueno: Electronics Department, University of Alcalá, Ctra. Madrid-Barcelona, km. 33,600, Madrid, Alcalá de Henares 28871, Spain
Álvar Mayor: Gamesa Electric; Avda. Fuentemar, 5, Madrid, Coslada 28823, Spain
Francisco J. Rodríguez: Electronics Department, University of Alcalá, Ctra. Madrid-Barcelona, km. 33,600, Madrid, Alcalá de Henares 28871, Spain
Aurelio García-Cerrada: Electronics and Control Department, Comillas Pontifical University; Alberto Aguilera, 25, Madrid 28015, Spain

Energies, 2014, vol. 7, issue 2, 1-24

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 (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2014
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (7)

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