SIME: A hybrid approach to fast transient stability assessment and contingency selection

Zhang, Ywee; Wehenkel, Louis; Rousseaux, Patricia; Pavella, M.

doi:10.1016/s0142-0615(96)00047-6

Cited by 112 publications

(76 citation statements)

References 3 publications

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“…machine energy fct. [24] Equal Area Criterion [25] Extended Equal Area Criterion [26] SIME [27] FILTRA [28] Comprehensive Approach [29] Predictive SIME [30] Emergency SIME [30] Real-time TS pred.…”

Section: Transient Stability Assessmentmentioning

confidence: 99%

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Investigation of the adaptability of transient stability assessment methods to real-time operation

Weckesser

Jóhannsson

Sommer

et al. 2012

2012 3rd IEEE PES Innovative Smart Grid Technologies Europe (ISGT Europe)

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Abstract-In this paper, an investigation of the adaptability of available transient stability assessment methods to real-time operation and their real-time performance is carried out. Two approaches based on Lyapunov's method and the equal area criterion are analyzed. The results allow to determine the runtime of each method with respect to the number of inputs. Furthermore, it allows to identify, which method is preferable in case of changes in the power system such as the integration of distributed power resources (DER). A comparison of the performance of the analyzed methods leads to the suggestion that matrix reduction and time domain simulation are the most critical operations.

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Section: Transient Stability Assessmentmentioning

confidence: 99%

“…It solely comprises the most important features and the reader is referred to [27], [30] for a complete description.…”

Section: D) Identification Critical Machine(s)mentioning

confidence: 99%

Investigation of the adaptability of transient stability assessment methods to real-time operation

Weckesser

Jóhannsson

Sommer

et al. 2012

2012 3rd IEEE PES Innovative Smart Grid Technologies Europe (ISGT Europe)

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“…The single machine equivalent (SIME) method [2], [3] is also suggested as an evaluation method for on-line transient stability. Since SIME method uses time simulation method, which calculates rotor angles until CGG reaches instability, it determines in advance the CGG offline and uses it on-line.…”

Section: Introductionmentioning

confidence: 99%

Determination of Critical Generator Group Using Accelerating Power and Synchronizing Power Coefficient in the Transient Energy Function Method

Chun¹

2011

Journal of Electrical Engineering and Technology

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-This paper proposes an algorithm for determining critical generator lists using accelerating power and synchronizing power coefficient (SPC), and critical generator group (CGG) from CGG candidates, which is a combination of critical generators. The accurate determination of CGG provides a more accurate energy margin while providing system operator with information of possible unstable generator group. Classical transient energy function (TEF) method selects the critical generators with big corrected kinetic energy of each generator at the moment of fault removal. However, the generator with small acceleration after fault, that is, the generator with small corrected kinetic energy, is also likely to belong to CGG if the generator has small synchronizing power. The proposed algorithm has been verified to be effective compared with the classical TEF method. We utilized the power system of Korean Electric Power Corporation(KEPCO) as a test system.

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“…More precisely, after a contingency inception and its clearance, SIME drives a time-domain program so as to accomplish the following tasks: identify the critical and non critical machines and aggregate them into two groups; replace these groups by successively a two-machine, then an OMIB equivalent system; assess transient stability of this OMIB, using the EAC [6]. The various steps of the method are briefly described below and illustrated in Figs 1 drawn for the 3-machine system simulated in Section 5.…”

Section: Foundationsmentioning

confidence: 99%

“…The contingencies considered consist of three-phase short circuits (3 SCs) applied at each one of the buses 4,5,6,7,8,9, and cleared by opening one line connected to this bus (see Fig.3). This creates 12 contingencies.…”

Section: Contingency Scenarios: Description Ueps and Corresponding Ementioning

confidence: 99%

An approach to modal analysis of power system angle stability

Roth

Ruiz-Vega

Ernst

et al.

2001 IEEE Porto Power Tech Proceedings (Cat. No.01EX502)

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Abstract-An approach to modal analysis and modal identification is proposed, capable of complementing the panoply of existing methods. It is based on a hybrid time-domain -direct transient stability method called SIME (for SIngle Machine Equivalent). In short, SIME uses a conventional transient stability program to transform the time varying parameters of the system into those of a one-machine infinite bus (OMIB) equivalent system. The representations of this OMIB allow substantial reduction of the original problem's dimensionality. Many important advantages may result. For example, the multimachine system unstable equilibrium point (UEP) can readily be derived from the OMIB UEP, which is calculated analytically and unambiguously in a two-dimensional space. Further, the interplay between multimachine and OMIB characteristics and their complementary properties provides a better understanding and handling of damping, inter-area oscillations and their control. More generally, modal analysis and modal identification tasks get closer to each other and easier to handle. The paper essentially focuses on the approach as such rather than on potential applications. Simulations carried out on a 3-machine system illustrate main features.

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SIME: A hybrid approach to fast transient stability assessment and contingency selection

Cited by 112 publications

References 3 publications

Investigation of the adaptability of transient stability assessment methods to real-time operation

Investigation of the adaptability of transient stability assessment methods to real-time operation

Determination of Critical Generator Group Using Accelerating Power and Synchronizing Power Coefficient in the Transient Energy Function Method

An approach to modal analysis of power system angle stability

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