Planning methodologies for voltage stability limited power systems

Xu, Wen; Mansour, Y.; Harrington, Philip

doi:10.1016/0142-0615(93)90021-e

Cited by 16 publications

(3 citation statements)

References 6 publications

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“…The static models of power networks offer insight into the mechanism of voltage instability followed by voltage collapse. Static model based methodologies rely on Jacobian matrix analysis [5], [6] and the calculation of the distance of the current operating point from the singularity of the Jacobian or via its spectral analysis. Many elegant tools such as continuation power flow [7] have been developed and adopted by the power supply industry to compute voltage stability margins when the network is stressed.…”

Section: Introductionmentioning

confidence: 99%

Phasor measurement application for power system voltage stability monitoring

Fu¹,

Pal²,

Cory³

2008

2008 IEEE Power and Energy Society General Meeting - Conversion and Delivery of Electrical Energy in the 21st Century

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Monitoring voltage stability is an important task for ensuring secure operation of electrical power networks. In this paper, a phasor measurement based voltage stability monitoring scheme is proposed. By using phasor measurement units and transformer tap position changes, voltage stability indices can be computed at load supply points in the operational time scale. Because this scheme is only based on phasor measurements, it is easy to be adopted in real electrical power networks and does not require any information about the system model. The effectiveness of the scheme was validated in a simple power network and also in New England and New York interconnection power system model. The practicality of the approach was further demonstrated in a real-time dynamic simulator.

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Section: Introductionmentioning

confidence: 99%

Phasor measurement application for power system voltage stability monitoring

Fu¹,

Pal²,

Cory³

2008

2008 IEEE Power and Energy Society General Meeting - Conversion and Delivery of Electrical Energy in the 21st Century

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“…In general, two major techniques, viz., static approach and dynamic approach, are preferably used for voltage stability analysis of power systems. The solutions obtained using the static approach are based on several implicit assumptions on the steady-state behavior of dynamic components, for which they fail to describe the actual system 654 P. K. Satpathy and D. Das behavior during transients [10][11][12]. In such cases, dynamic simulation of a linearized system (small-disturbance analysis) or complete time domain dynamic simulation (large-disturbance analysis) can be called upon [13].…”

Section: Introductionmentioning

confidence: 99%

Impact of Various Load Models in Power System Bifurcation Analysis

Satpathy

2003

Electric Power Components and Systems

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A scheme for assessing the impact of various load models on power system voltage stability is proposed. The study is based on bifurcation theory, which accurately determines the behavior and impact of various load models around the bifurcation point. The load models are selected from a class of composite loads and are categorized according to their degree of composition. Unlike the conventional way of considering a static load model, this paper uses a generic nonlinear dynamic load model. A case study on three standard test systems verifies the performance of the proposed method. Numerical results include severity ranking of various load models in view of voltage stability, identification of critical busbars through a voltage sensitivity index, and critical operating margins at the point of bifurcation.

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“…al. in [53] used conventional power flow methods to assess the voltage stability margin. The methods scale up entire system load in variable steps until the voltage instability point is reached.…”

mentioning

confidence: 99%

Coordinated static and dynamic reactive power planning against power system voltage stability related problems

Krishnan

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Planning methodologies for voltage stability limited power systems

Cited by 16 publications

References 6 publications

Phasor measurement application for power system voltage stability monitoring

Phasor measurement application for power system voltage stability monitoring

Impact of Various Load Models in Power System Bifurcation Analysis

Coordinated static and dynamic reactive power planning against power system voltage stability related problems

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