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Detailed analysis and experimental results of the control system of a UPFC

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Date
01/03/2003
Author
García González, Pablo
García Cerrada, Aurelio
Estado
info:eu-repo/semantics/publishedVersion
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Abstract
 
 
This paper explains the decoupled control of the power flow through a transmission line using a PWM based Unified Power Flow Controler (UPFC). The dynamic model of the UPFC has been developed using the space-vector representation of the instantaneous three-phase variables. The Park´s transformation and the reference frame selected reduce the control of the real and reactive-power flows to the control of the d- and q-axis currents, respectively. The proposed control scheme produces fast and decoupled response of the real and the reactive-power flow through a transmission line. It also achieves tight control of the d.c.-link capacitor voltage, thanks to the careful coordination between the control of the series and shunt compensators of the UPFX. A 15 kVA prototype with 750 Hz switching frequency has been built to illustrate the main contributions. Experiemental results agree closely with the theoretical analysis.
 
URI
10.1049/ip-gtd:20030026
Detailed analysis and experimental results of the control system of a UPFC
Tipo de Actividad
Artículos en revistas
ISSN
1350-2360
Materias/ categorías / ODS
Instituto de Investigación Tecnológica (IIT)
Palabras Clave

PWM invertors; compensation; load flow control; power transmission control; power transmission lines; reactive power control
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