Reactive power response of wind generators under an incremental network-loss allocation approach

• Type: Article in International Scientific Journal
• Date: 2008

Authors

P. M. de Oliveira de Jesus (Author) FEUP; Edgardo D. Castronuovo (Author) FEUP; M. T. Ponce de Leão (Author) FEUP

Journal

Title: IEEE Transactions on Energy Conversion

Vol. 23 No. 2

Pages: 612-621

ISSN: 0885-8969

Publisher: IEEE

Indexing

ISI Web of Science

Scopus

INSPEC

COMPENDEX

Scientific classification

FOS: Engineering and technology > Other engineering and technologies

Other information

DOI: 10.1109/TEC.2007.914172

Abstract (EN): The reactive power capability of wind generation (WG) producers can be used to provide volt/voltampere reactive (var) support in electrical distribution systems. In practice, the distribution network operator (DNO) is not able to dispatch reactive power of all generators, and such units are referred to as nondispatchable generators. Then, the reactive power of these nondispatchable generators is not a defined value, and it should accomplish the limits settled by national grid codes. This paper addresses the optimal reactive power provision of nondispatchable WG units under a loss allocation strategy based on incremental generation use of the system (GUoS) tariffs. The optimization problem is set from generators' viewpoint aiming to find the reactive power provision that minimizes the loss charges subject to operational constraints. Optimal solutions are compared with the DNOs mandatory dispatches using a reactive optimal power flow tool. Two test systems are analyzed: a 10-kV 28 bus and 60-kV 55-bus system throughout 672 and 168 h, respectively. The proposal permits to identify which units can be dispatched by the DNO due to its effect on the network.

Language: English

Type (Professor's evaluation): Scientific