Journal ArticleDOI
Dynamic Interaction of Multi-Machine Power System and Excitation Control
Hamdy A. M. Moussa,Yao-nan Yu +1 more
Reads0
Chats0
TLDR
In this paper, the dynamic interactions between mechanical and reactive modes of machines in a multi-machine power system are investigated in terms of machine angles, transient voltages, and coefficients which are functions of system parameters and operation conditions.Abstract:
In this paper the dynamic interactions between mechanical and reactive modes of machines in a multi-machine power system are investigated. The dynamic interactions are expressed in terms of machine angles, transient voltages, and coefficients which are functions of system parameters and operation conditions. The effect of the dynamic interaction can be examined by the electric torque loci on the A6-Aw phase plane. It is found that the interaction between the mechanical modes of machines has significant effect on stability characterized by the natural mechanical oscillation frequency and damping of individual machines.read more
Citations
More filters
Journal ArticleDOI
Modeling of Grid-Connected VSCs for Power System Small-Signal Stability Analysis in DC-Link Voltage Control Timescale
TL;DR: In this article, a small-signal model is proposed to understand VSC external characteristics based on motion equation concept also featured in synchronous generator (SG), which can hold the main behaviors of concern.
Journal ArticleDOI
An Optimal Variable Structure Stabilizer for Power System Stabilization
Wah-Chun Chan,Yuan-Yih Hsu +1 more
TL;DR: In this article, a technique for designing an optimal variable structure stabilizer is presented for improving the dynamic stability of power systems by increasing the damping torque of the synchronous machine in the system.
An optimalvariablestructure stabilizerfor power system stabilization
TL;DR: In this article, a technique for designing an optimal variable structure stabilizer is presented for improving the dynamic stability of powersystems by increasing the dampness of the synchronous machine.
Journal ArticleDOI
Coordinated Synthesis of Power System Stabilizers in Multimachine Power Systems
Atsushi Doi,Shigeru Abe +1 more
TL;DR: In this paper, a new coordinated synthesis method of applying power system stabilizers (PSS) was developed by combining eigenvalue sensitivity analysis and linear programming, which is simultaneously able to select the generators to which the PSS can be effectively applied and to synthesize the adequate transfer functions of the PS for these generators.
Journal ArticleDOI
Pole-placement power system stabilizers design of an unstable nine-machine system
TL;DR: In this paper, an efficient pole-placement method is developed with straightforward formulation and a reduced computation requirement for an unstable nine-machine system, which not only ensures the exact pole-position of the unstable mechanical modes, but also improves the dampings of the poorly damped mechanical modes.
References
More filters
Journal ArticleDOI
Concepts of Synchronous Machine Stability as Affected by Excitation Control
TL;DR: In this article, the stability of synchronous machines under small perturbations is explored by examining the case of a single machine connected to an infinite bus through external reactance, and the results are shown to be similar to ours.
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
Effect of High-Speed Rectifier Excitation Systems on Generator Stability Limits
TL;DR: In this paper, a device to provide a signal proportional to changes in generator speed has been developed by Ontario Hydro and field tests have been performed to demonstrate that use of this signal with a high-speed rectifier excitation system results in dynamic stability limits which approximate those which can be obtained with a zero reactance generator.
Journal ArticleDOI
Dynamic Stability of the Peace River Transmission System
TL;DR: In this paper, the transient and dynamic stability of the Peace River 500kV transmission system was studied with a new digital computer program, which included direct and quadrature machine axes, saturation, excitation, and governing systems.
Journal ArticleDOI
Excitation Control to Improve Powerline Stability
TL;DR: In this paper, the influence of generator voltage regulators on powerline stability is closely scrutinized by analog techniques and it is shown that high-speed control of excitation to maintain constant terminal voltage actually hampers rather than aids damping and power line stability.