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Fundamental analysis of the synchronous generator – TCSC system using the ICAD framework

Ugalde Loo, Carlos Ernesto, Acha, Enrique, Licéaga-Castro, Eduardo and Vanfretti, Luigi 2010. Fundamental analysis of the synchronous generator – TCSC system using the ICAD framework. Presented at: 16th Power Systems Computation Conference (PSCC 2008), Glasgow, UK, Proccedings of the 16th Power Systems Computation Conference 2008 (PSCC 2008 GLASGOW), Glasgow, UK, 14-18 July 2008. New York: Curran Associates, pp. 711-717.

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The TCSC, a mature member of the FACTS technology, is the electronically-controlled counterpart of the conventional series bank of capacitors. Its major bene-fits are its ability to regulate power flows along the com-pensated line and to rapidly modulate its effective imped-ance. In this paper, fundamental analysis of the synchro-nous generator – TCSC system using Individual Channel Analysis and Design, is carried out. The main benefits of this approach in control system design tasks are elucidated. Fundamental analysis is used to explain the generator dynamic behaviour as affected by the TCSC. The system is modelled as a 3x3 multivariable plant. Moreover, a control system design for the system is presented, with particular emphasis in the closed-loop performance and stability and structural robustness assessment. The percentage of series compensation is varied (50, 25 and 10%) by changing the firing angle of the TCSC. It is formally shown that the addition of the TCSC improves the dynamical performance of the synchronous machine by substantially decreasing the electrical distance and therefore considerably reducing the awkward switch-back characteristic exhibited by synchro-nous generators. However, the TCSC inclusion brings on fragility to the global system, making it non-minimum phase and introducing adverse dynamics in the speed channel of the synchronous machine.

Item Type: Conference or Workshop Item (Paper)
Date Type: Publication
Status: Published
Schools: Engineering
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Publisher: Curran Associates
ISBN: 9781617388576
Last Modified: 04 Jun 2017 04:10

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