Synchrophasor-Based Real-Time Voltage Stability Index

Gong, Yanfeng; Schulz, Noel N.; Guzmán, Armando

doi:10.1109/psce.2006.296452

Cited by 94 publications

(68 citation statements)

References 13 publications

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“…Most of the methods based on local measurements rely on the Thévenin impedance matching condition [8] or its extensions [9]- [13].…”

Section: B Methods Based On Local Measurementsmentioning

confidence: 99%

“…To avoid the time delay of leastsquare estimation, it is proposed in [11] to obtain the Thévenin equivalent from measurements taken at a single time but at both ends of a transmission corridor. A two-bus equivalent is also used in [13] where the large network behind a load bus is represented by a source in series with a transmission line (using time synchronized PMUs), preserving power flow and voltage information at the bus of concern.…”

Section: B Methods Based On Local Measurementsmentioning

confidence: 99%

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Detecting with PMUs the onset of voltage instability caused by a large disturbance

Glavić

Cutsem

2008

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

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Abstract-This paper deals with long-term voltage instability triggered by the outage of transmission or generation equipments. It is shown how the onset of voltage instability could be detected in real-time from post-disturbance bus voltages provided by Phasor Measurement Units (PMUs), assuming observability of the whole region prone to voltage instability. An extended set of equilibrium equations is fitted to the measurements and the change in sign of sensitivities is monitored. The latter are easily computed even for a large system. The important effects of overexcitation limiters and load tap changers are taken into account. The approach is illustrated on a 52-bus 20-machine system, where PMU outputs are simulated from detailed time simulation.

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“…Most of the methods based on local measurements rely on the Thévenin impedance matching condition [8] or its extensions [9]- [13].…”

Section: B Methods Based On Local Measurementsmentioning

confidence: 99%

Section: B Methods Based On Local Measurementsmentioning

confidence: 99%

Detecting with PMUs the onset of voltage instability caused by a large disturbance

Glavić

Cutsem

2008

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

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“…New online voltage stability index based on synchronized phasor measurement is proposed to find the voltage stability of the system [17]. Thisindex is mainly designed for the determination of maximum transferable power.…”

Section: Dvoltage Stability Indicesmentioning

confidence: 99%

Study of Different Methods of Voltage Stability Analysis

Gawande¹

2015

IJAREEIE

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In today's scenario, as the development is taking place simultaneously the demand for the electricity in the world is also increasing. Operation and planning of large interconnected power systems are becoming more and more complex. In power system, voltage stability plays a very important role. Voltage instability may cause blackouts and collapse of the power system. In last decade, many countries have experienced the problem of blackouts due to voltage instability. The problem of voltage stability is mainly caused due to stressed loading condition of the system. It is essential to analyse the voltage stability for improvement in the efficiency of power system. Various authors have conducted research on analysis of voltage stability and methods to improve it. This paper, presents a review on research and development in the voltage stability analysis and methods for improving the voltage stability.

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“…A two-bus equivalent is used in [46] where the network behind a load bus is represented by a voltage source in series with a transmission line, preserving power flow and voltage information at the bus of concern. The computation of the equivalent network relies on Eq.…”

Section: Multiport Thévenin Equivalentmentioning

confidence: 99%

A short survey of methods for voltage instability detection

Glavić

Cutsem

2011

2011 IEEE Power and Energy Society General Meeting

117

100

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Abstract-This paper shortly surveys existing and proposed methods for voltage instability detection. The emphasis is on methods relying on real-time measurements as well as on longterm voltage instability. Methods are classified according to the required measurement configuration: local vs. wide-area, standard SCADA-type vs. synchronized phasor measurements, etc. In the various categories, some of the features are summarized, and what appears to the authors as advantages or limitations is shortly discussed. An important feature is the ability to anticipate instability. Some tracks for further work on the subject are also outlined.

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Synchrophasor-Based Real-Time Voltage Stability Index

Cited by 94 publications

References 13 publications

Detecting with PMUs the onset of voltage instability caused by a large disturbance

Detecting with PMUs the onset of voltage instability caused by a large disturbance

Study of Different Methods of Voltage Stability Analysis

A short survey of methods for voltage instability detection

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