Journal ArticleDOI
Dynamic Stability of Long Transmission Systems with Static Compensators and Synchronous Machines
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TLDR
In this article, the static compensator and the excitation system control parameters are chosen in a coordinated manner from the stability limit plots, the extension of stability limits with a Static Compensator are quantised, later a second compensator is included for improving the system performance.Abstract:
This paper deals with the dynamic stability of long distance a.c. transmission systems operating at above 1 surge impedance loading and compensated entirely by automatically controlled shunt inductance device referred to as Static Compensators. Generalised system equations in the form X = AX, with a careful choice of state variables are developed via the subsystem concept and the eigenvalue technique used to establish the stability limits. The static compensator and the excitation system control parameters are chosen in a coordinated manner from the stability limit plots, the extension of stability limits with a Static Compensator are quantised, later a second compensator is included for improving the system performance and interaction studies.read more
Citations
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Journal ArticleDOI
Adaptive control of a synchronous machine using the auto-searching method
Hsu Yuan-Yih,Wu Chi-Jui +1 more
TL;DR: In this paper, an adaptive proportional-integral (PI) controller with real-time gain adjustment was proposed for the design of a power system stabilizer and a static VAr (reactive volt-ampere) compensator.
Journal ArticleDOI
Design of PID static VAr controllers for the damping of subsynchronous oscillations
Yuan-Yih Hsu,Chi-Jui Wu +1 more
TL;DR: In this article, a proportional-integral-derivative (PID) controller is used to modulate the reactive power output feedback controller with only one feedback signal (generator speed deviation), the proposed controller is relatively simple for practical implementation.
Journal ArticleDOI
Power system transient stability enhancement by optimal control of static VAR compensators
Jan Machowski,D. Nelles +1 more
TL;DR: In this article, a study of power system transient stability enhancement through the effective use of static VAR compensators is presented, where the optimal control strategy resulting from the direct Lyapunov method and Pontryagin's maximum principle requires a control signal based on the state variables not available at the compensator bus.
Journal ArticleDOI
Damping of Generator Oscillations Using Static VAR Compensators
Kan-Lee Liou,Yuan-Yih Hsu +1 more
TL;DR: In this article, a static VAR compensator for the damping of electromechanical oscillation in a synchronous generator is presented, which is made up of a fixed capacitor and a thyristor-controlled inductor.
Journal ArticleDOI
Stabilizing torsional oscillations using a hunt reactor controller
Wang Li,Lee Ching-Huei +1 more
TL;DR: In this article, a study on the application of shunt reactors for the damping of torsional oscillations that occur in a power system containing series-capacitor compensation is presented.
References
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Journal ArticleDOI
Dynamic Stability Calculations for an Arbitrary Number of Interconnected Synchronous Machines
TL;DR: In this paper, the authors describe the small signal performance of a multi-machine synchronous power system by a set of differential equations of the form [x] = [A] [x], allowing standard multivariable control theory to be used in dynamic stability studies.
Journal ArticleDOI
Matrix analysis of dynamic stability in synchronous multimachine systems
TL;DR: In this paper, a set of general coefficients related to the well known Heffron and Phillips constants is derived by means of matrix algebra, which allows complex impedance terms to be included in the analysis.
Journal ArticleDOI
Eigenvalue sensitivities of power systems including network and shaft dynamics
TL;DR: In this paper, a digital computer method for obtaining eigenvalue sensitivities of interconnected power systems is presented, especially suited to the analysis of detailed modelled synchronous machine systems where shaft and stator-network dynamic effects are significant.
Journal ArticleDOI
Effect of excitation regulation on synchronous-machine stability
L.J. Jacovides,B. Adkins +1 more
TL;DR: In this article, a detailed study of the effect of a voltage regulator on the stability of an alternator connected through a reactance to an infinite bus is performed, and the stability is analyzed by means of Nyquist loci calculated for the transfer functions of alternator and regulator.