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On the assignment of voltage control ancillary service of generators in Spain

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IIT-07-004A.pdf (908.5Kb)
Date
2007-02-01
Author
Lobato Miguélez, Enrique
Echavarren Cerezo, Francisco
Rouco Rodríguez, Luis
Estado
info:eu-repo/semantics/publishedVersion
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Abstract
 
 
The aim of the Spanish voltage control ancillary service is the minimization of the transmission losses while keeping the system away from voltage instability. The latter target can be achieved maintaining an adequate voltage profile in normal operating condition and assuring that generators exhibit enough reactive margins that guarantee that the system voltages will remain under acceptable values in case of contingencies. The service has been designed in Spain to be partially mandatory and partially subject to payment based on market-driven rules and performance evaluation. In the annual time scope, the optional reactive offers submitted by the service suppliers are selected analyzing a number of forecasted scenarios. This paper explains the implementation of the Spanish voltage control ancillary service (VCAS) that is provided by generators in the annual time scope. For this purpose, a mixed-integer linear programming optimal power flow (OPF) is used. Reactive bids of generators are modeled within each scenario by modifying the reactive limits of the generators. The use of the proposed OPF in the assignment of the voltage control ancillary service is explained and illustrated using actual scenarios of the Spanish power system.
 
URI
https:doi.org10.1109TPWRS.2006.888984
On the assignment of voltage control ancillary service of generators in Spain
Tipo de Actividad
Artículos en revistas
ISSN
0885-8950
Materias/ categorías / ODS
Instituto de Investigación Tecnológica (IIT)
Palabras Clave

Ancillary services (AS), linear programming (LP), optimal power flow (OPF), power loss reduction, reactive power dispatch, VARvoltage control
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