An on-line contingency filtering scheme for dynamic security assessment

Chadalavada, V.; Vittal, Vijay; Ejebe, G.C.; Irisarri, G.D.; Tong, Jiarong; Pieper, G. F.; McMullen, Mary H.

doi:10.1109/59.574935

Cited by 53 publications

(30 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Given a power system stability model (which admits an energy function), the BCU method first explores the special properties of the underlying model with the aim of defining an arti-ficial, reduced-state model such that the following static as well as dynamic relationships are met The dynamic relationship (D3) plays an important role in the development of the BCU method to circumvent the difficulty of applying an iterative timedomain procedure to compute the exit point on the original model. The BCU method then finds the controlling UEP of the artificial, reduced-state model (2) by exploring the special structure of the stability boundary and the energy function of the reducedstate model (2). Next, it relates the controlling UEP of the reduced-state model (2) to the controlling UEP of the original model (1).…”

Section: Bcu Methodsmentioning

confidence: 99%

“…This strategy can be applied to on-line DSA. Given a set of credible contingencies, the strategy would break the task of on-line DSA into two stages of assessments [2,3]: Stage 1: perform the task of dynamic contingency screening to fast screen out contingencies which are definitely stable from a set of credible contingencies. Stage 2: perform detailed assessment of dynamic performance for each contingency remaining in Stage 1.…”

Section: Dynamic Contingency Screeningmentioning

confidence: 99%

“…It is also not clear whether the time-domain based approach can meet these requirements. In this regard, the energy function based method can meet the requirements [2,3].…”

Section: Dynamic Contingency Screeningmentioning

confidence: 99%

See 2 more Smart Citations

TEPCO-BCU for on-line dynamic security assessments of large-scale power systems

Chiang

Tada

Hua

et al. 2009

8th International Conference on Advances in Power System Control, Operation and Management (APSCOM 2009)

View full text Add to dashboard Cite

show abstract

Section: Bcu Methodsmentioning

confidence: 99%

Section: Dynamic Contingency Screeningmentioning

confidence: 99%

See 1 more Smart Citation

TEPCO-BCU for on-line dynamic security assessments of large-scale power systems

Chiang

Tada

Hua

et al. 2009

8th International Conference on Advances in Power System Control, Operation and Management (APSCOM 2009)

View full text Add to dashboard Cite

show abstract

“…Then the indices are computed to determine stability and to rank the respective contingency. In [5] a screening method utilizing the transient energy function was proposed, where the aim is to filter non-severe disturbances. In the recent publication [6], a contingency screening and ranking approach is proposed, which applies a homotopy-based approach to identify the controlling unstable equilibrium point.…”

Section: Introductionmentioning

confidence: 99%

An Improved On-line Contingency Screening for Power System Transient Stability Assessment

Weckesser

Jóhannsson

Glavić

et al. 2017

Electric Power Components and Systems

View full text Add to dashboard Cite

This paper presents a contingency screening method and a framework for its on-line implementation. The proposed method carries out contingency screening and on-line stability assessment with respect to first-swing transient stability. For that purpose, it utilizes the single machine equivalent method and aims at improving the prior developed contingency screening approaches. In order to determine vulnerability of the system with respect to a particular contingency, only one time-domain simulation needs to be performed. An early stop criteria is proposed so that in a majority of the cases the simulation can be terminated after a few hundred milliseconds of simulated system response. The method's outcome is an assessment of the system's stability and a classification of each considered contingency. The contingencies are categorized by exploiting parameters of an equivalent one machine infinite bus system. A novel island detection approach, appropriate for an on-line application since it utilizes efficient algorithms from graph theory and enables stability assessment of individual islands, is also introduced. The New England and New York system as well as the large-scale model of the Continental-European interconnected system are used to test the proposed method with respect to assessment accuracy and computation time.

show abstract

“…However, on-line transient stability screening tools based on direct methods are able to screen out a large number of non-severe contingencies and apply detailed simulations on the severe or undetermined contingencies to reach the requirements of on-line applications. An on-line screening tool based on three levels of filtering using transient stability direct methods was proposed in [19], [20]. Each level has two time frames, inertial transient filters and post-inertial transient filters.…”

Section: Introductionmentioning

confidence: 99%

A fast transient stability screening and ranking tool

Benidris

Cai

Mitra

2014

2014 Power Systems Computation Conference

View full text Add to dashboard Cite

This paper introduces a fast transient stability screening tool to classify a designated set of contingencies into stable and unstable subsets using direct methods. The proposed method is based on the conservativeness of the Lyapunov function. The classification processes of the contingencies are performed along the solution trajectory towards the Controlling Unstable Equilibrium Point (controlling UEP). The proposed screening tool is intended to reliably capture the unstable contingencies and efficiently reduce the number of contingencies that need further analyses. If a numerical problem is encountered during the computation, the proposed scheme applies homotopy-based approaches to find the desired solution. If the numerical problem can not be solved using homotopy-based methods, the contingency is sent to a time-domain simulator for further analysis. The method was applied on the Western System Coordinating Council (WSCC) test system and results are presented.

show abstract

An on-line contingency filtering scheme for dynamic security assessment

Cited by 53 publications

References 4 publications

TEPCO-BCU for on-line dynamic security assessments of large-scale power systems

TEPCO-BCU for on-line dynamic security assessments of large-scale power systems

An Improved On-line Contingency Screening for Power System Transient Stability Assessment

A fast transient stability screening and ranking tool

Contact Info

Product

Resources

About