Journal ArticleDOI
Dynamic Stability of Long Transmission Systems with Static Compensators and Synchronous Machines
Reads0
Chats0
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
More filters
Proceedings ArticleDOI
Design of a H/sup /spl infin// static VAr controller for the damping of generator oscillations
Li Wang,Ming-Hsin Tsai +1 more
TL;DR: In this article, a novel scheme using H/sup /spl infin/infin// optimal control theory to design a static VAr controller (SVC) for a SVS connected at the generator bus is presented.
Journal ArticleDOI
Static Compensator Loss Estimation from Digital Measurement of Voltages and Currents
TL;DR: In this paper, the authors deal with a procedure for direct measurement of the active power dissipated by the reactor arm of a static compensator in operation and examine the precision of the loss measurement as influenced by the distorsion of the waveform, sampling rate of the data acquisition system, the phase errors introduced by the current and voltage interfaces and the analog-to-digital conversion.
Journal ArticleDOI
A static var compensator control strategy to maximize power system damping
Jan Machowski,D. Nelles +1 more
TL;DR: In this article, a study of power system transient stability enhancement through effective use of static VAR compensator is presented, where an optimal theoretical control strategy is derived from direct Lyapunov method for multi-machine system model as a control which forces the fastest dissipation of energy released in the system by a given fault.
Journal ArticleDOI
Control of dynamic overvoltages due to load rejection by static shunt compensation
TL;DR: In this paper, the performance of a static shunt compensator as a device for controlling dynamic overvoltages caused by load rejection is presented. And the application of this analysis for choosing an economic voltage rating of the surge arrestor is highlighted.
Journal ArticleDOI
A co-ordinated compensation strategy involving synchronous generators and static VAR compensators in long distance AC transmission systems
TL;DR: In this paper, a new compensation strategy is developed, which co-ordinates the regulating action on SVCs with the control action on the excitation systems of the generating units located at the sending end of the transmission system.
References
More filters
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.