Journal ArticleDOI
Identification of Coherent Generators for Dynamic Equivalents
TLDR
In this article, the authors describe the development and evaluation of a method for identifying the coherency behavior of generators for various power system disturbances and use this information as a basis for forming dynamic equivalents which can be applied in transient stability studies.Abstract:
This paper describes the development and evaluation of a method for identifying the coherency behavior of generators for various power system disturbances. This information is used as a basis for forming dynamic equivalents which can be applied in transient stability studies.read more
Citations
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Journal ArticleDOI
Slow coherency-based islanding
TL;DR: In this paper, an analytical basis for an application of slow coherency theory to the design of an islanding scheme, which is employed as an important part of a corrective control strategy to deal with large disturbances.
Journal ArticleDOI
Self-healing in power systems: an approach using islanding and rate of frequency decline-based load shedding
TL;DR: In this paper, the authors proposed a self-healing strategy to deal with catastrophic events when power system vulnerability analysis indicates that the system is approaching an extreme emergency state, and a load shedding scheme based on the rate of frequency decline is applied.
Journal ArticleDOI
Dynamic Aggregation of Generating Unit Models
A. J. Germond,R. Podmore +1 more
TL;DR: In this article, a technique for the automatic formation of dynamic equivalents of generating units represented by detailed models is described, and a new technique is described for automatically forming dynamic equivalents for generating units.
Journal ArticleDOI
Nonlinear Koopman Modes and Coherency Identification of Coupled Swing Dynamics
Yoshihiko Susuki,Igor Mezic +1 more
TL;DR: Computation of the Koopman modes extracts single-frequency, spatial modes embedded in non-stationary data of short-term, nonlinear swing dynamics, and it provides a novel technique for identification of coherent swings and machines.
Journal ArticleDOI
Dynamic reduction of large power systems for stability studies
TL;DR: In this article, the main factors that affect the quality of the reduced models are discussed and the benefits of dynamic reductions are demonstrated for three large interconnected power system models for stability studies.
References
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Journal ArticleDOI
Fast Transient Stability Soultions
Hermann W. Dommel,N. Sato +1 more
TL;DR: A new technique for solving the differential equations with the implicit trapezoidal rule of integration can be combined into one simultaneous solution, thereby eliminating the problem of interface error between the differential and algebraic equation solutions of the traditional approach.
Journal ArticleDOI
Dynamic Aggregation of Generating Unit Models
A. J. Germond,R. Podmore +1 more
TL;DR: In this article, a technique for the automatic formation of dynamic equivalents of generating units represented by detailed models is described, and a new technique is described for automatically forming dynamic equivalents for generating units.
Journal ArticleDOI
Construction of Power System lectromechanical Equivalents by Modal Analysis
J. M. Undrill,A. E. Turner +1 more
TL;DR: In this paper, an analytical approch to the construction of power system dynamic equivalents for use in stability calculations and dynamic simulations is presented, which is capable of accurately representing the dynanlical effects of generator field and amortisseur windings, voltage regulators, and speed governors.
Journal ArticleDOI
Distance Measures and Coherency Recognition for Transient Stability Equivalents
TL;DR: In this paper, a method using distance measures to draw boundaries and pattern recognition concepts to identify coherency is presented, which is incorporated in a computer program which is a useful tool for transient stability studies in power system planning.
Journal ArticleDOI
Iterative Linear AC Power Flow Solution for Fast Approximate Outage Studies
TL;DR: A fast approximate method is presented for solving the ac power flow problem for line and generator outages, significantly more accurate than any linear approximation and significantly faster than the Newton-Raphson method for an approximate solution.