Monitoring voltage stability with real-time dynamics monitoring system (RTDMS®)

Agarwal, Abhijeet; Balance, John; Bhargava, B.; Dyer, Jim; Chi, Songxue

doi:10.1109/pes.2011.6039738

Cited by 8 publications

(7 citation statements)

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“…4. Typically, the voltage sensitivity at a bus increases as the operating point moves towards the voltage collapse point, thus, it is an indicator of the proximity to voltage instability [6]. Similarly, angle sensitivity is a measure of how much the voltage angle difference varies for a change in amount of power flow.…”

Section: Voltage Sensitivity and Angle Sensitivity Analysis Andmentioning

confidence: 99%

Development of an on-line SynchroPhasor wide area dynamics monitoring platform

Chen

Kothapa

et al. 2014

2014 IEEE PES T&D Conference and Exposition

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SynchroPhasor measurement provides high resolution and time-synchronized data, which exposes the complex dynamics of the power systems across wide areas. Taking advantage of this technology, the Real-Time Dynamics Monitoring System (RTDMS ® ) Platform for on-line wide area dynamics monitoring has been developed by Electric Power Group. The platform utilizes an open and modular architecture and offers a suite of applications for real-time reliability monitoring, analysis and alarming. This paper provides an overview of the developed platform including system architecture, application function and visualization features.Index Terms-Phasor measurement units, power system dynamics, power system reliability, wide area measurement system.

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Section: Voltage Sensitivity and Angle Sensitivity Analysis Andmentioning

confidence: 99%

Development of an on-line SynchroPhasor wide area dynamics monitoring platform

Chen

Kothapa

et al. 2014

2014 IEEE PES T&D Conference and Exposition

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“…The increasing use of phasor measurement units (PMUs) makes real-time approaches to the voltage stability monitoring possible. Most analyses concentrate on wide area monitoring of voltage stability, such as the real-time dynamics monitoring system [3] or wide area monitoring implementations [4]. A different method, more suitable for distribution grids, uses PMU-data to estimate the Thevenin impedance and based on that calculating the maximum loadability at a given node [5].…”

Section: Introductionmentioning

confidence: 99%

Voltage stability monitoring using a modified thevenin impedance

Polster

Renner

Duong

et al. 2017

2017 IEEE Manchester PowerTech

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-This paper presents a method for voltage stability monitoring based on the maximum power transfer to the load. The only required information is the system topology, the data from PMUs and the operational status of synchronous generators. With this information, the Thevenin impedance seen from a load bus can be estimated and by using the Thevenin theorem for maximum power transfer an impedance based stability index can be established. Since the Thevenin impedance is influenced by the operational conditions of the synchronous generators, it is consequently not a constant value and differs from the short circuit impedance of the bus. It is emphasized that the method requires only the information of the considered subsystem. Therefore, since the computation requirement is insignificant, the algorithm can be used for online monitoring. The validation of the approach is achieved by simulating a simple transmission system.

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“…Inadequate voltage support was a contributing factor in several major blackouts in North America, including the 1996 Western Interconnection, and the 2003 North East US/Canada blackout [5,6]. Due to large power systems complexity, it is difficult assessing the critical point of voltage stability using power flow techniques as on-line voltage stability algorithm, because good decisions in short time are required, which hinders its practical application on power system [7].…”

Section: Introductionmentioning

confidence: 99%