Journal ArticleDOI
Analytical modeling of TCSC dynamics
Dragan Jovcic,G.N. Pillai +1 more
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TLDR
In this article, an analytical, linear, state-space model of a thyristor-controlled series capacitor (TCSC) is proposed and the model results are verified using MATLAB and verified against PSCAD/EMTDC in the time and frequency domains for a range of operating conditions.Abstract:
This paper presents an analytical, linear, state-space model of a thyristor-controlled series capacitor (TCSC). First, a simplified fundamental frequency model of TCSC is proposed and the model results are verified. Using frequency response of the nonlinear TCSC segment, a simplified nonlinear state-space model is derived, where the frequency of the dominant TCSC complex poles shows linear dependence on the firing angle. The nonlinear element is linearised and linked with the ac network model and the TCSC controller model that also includes a phase-locked-loop (PLL) model. The model is implemented in MATLAB and verified against PSCAD/EMTDC in the time and frequency domains for a range of operating conditions. The model is sufficiently accurate for most control design applications and practical stability issues in the subsynchronous range.read more
Citations
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TL;DR: In this paper, the authors developed a new design procedure for simultaneous coordinated designing of the thyristor controlled series capacitor (TCSC) damping controller and power system stabilizer (PSS) in multi-machine power system.
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References
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Journal ArticleDOI
Phasor dynamics of thyristor-controlled series capacitor systems
TL;DR: In this paper, the authors developed simple but accurate continuous-time, large-signal dynamic models for a thyristor-controlled series capacitor (TCSC) based on the representation of voltages and currents as time-varying Fourier series, focusing on the dynamics of the short-term Fourier coefficients.
Journal ArticleDOI
A thyristor controlled series compensator model for the power flow solution of practical power networks
TL;DR: In this paper, a load flow model for the TCSC is presented, which takes account of the loop current that exists in TCSC under both partial and full conduction operating modes, and the model takes proper care of the resonant points exhibited by TCSC fundamental frequency impedance.
Journal ArticleDOI
Dynamic response of a thyristor controlled switched capacitor
TL;DR: In this paper, the small signal dynamic response of a series capacitor system for use in flexible AC transmission system control design is computed and the eigenvalues of the small-signal dynamic response are used to study the dynamic response using different methods of synchronization and closed loop control.
Journal ArticleDOI
A stability model for the advanced series compensator (ASC)
TL;DR: In this article, an accurate and general stability model for the ASC (thyristor controlled reactor) operation is presented, which is valid for both capacitive and inductive regions of the ASC operation.
Journal ArticleDOI
Modelling and control of thyristor-controlled series compensators
Arindam Ghosh,Gerard Ledwich +1 more
TL;DR: In this paper, a linearized discrete-time model of a series-compensated transmission line is presented, in which a thyristor-controlled reactor (TCR) is used as the compensating device.