State Estimation with Phasor Measurements

Phadke, A. G.; Thorp, James S.; Karimi, K.J.

doi:10.1109/mper.1986.5528179

Cited by 143 publications

(138 citation statements)

References 0 publications

Supporting

Mentioning

121

Contrasting

Unclassified

Order By: Relevance

“…Therefore, VISOR is focusing on the potential for HSE, where synchronized measurements from PMUs and non-synchronized measurements from remote terminal units (RTUs) are combined by the state estimator into a hybrid calculation [28]. This may allow the benefits of synchronized phasor measurements [29] to be realized without requiring a fully observable linear state estimator.…”

Section: Hybrid State Estimationmentioning

confidence: 99%

Deployment and demonstration of wide area monitoring system in power system of Great Britain

Wall

Dattaray

Jin

et al. 2016

J. Mod. Power Syst. Clean Energy

View full text Add to dashboard Cite

The creation of a suitable wide area monitoring system (WAMS) is widely recognized as an essential aspect of delivering a power system that will be secure, efficient and sustainable for the foreseeable future. In Great Britain (GB), the deployment of the first WAMS to monitor the entire power system in real time was the responsibility of the visualization of real time system dynamics using enhanced monitoring (VISOR) project. The core scope of the VISOR project is to deploy this WAMS and demonstrate how WAMS applications can in the near term provide system operators and planners with clear, actionable information. This paper presents the wider scope of the VISOR project and the GB wide WAMS that has been deployed. Furthermore, the paper describes some of the WAMS applications that have been deployed and provides examples of the measurement device performance issues that have been encountered during the project.

show abstract

Section: Hybrid State Estimationmentioning

confidence: 99%

Deployment and demonstration of wide area monitoring system in power system of Great Britain

Wall

Dattaray

Jin

et al. 2016

J. Mod. Power Syst. Clean Energy

View full text Add to dashboard Cite

show abstract

“…In principle, the former do not require time synchronization of the PMUs, while the latter should preferably rely on a state estimator filtering the data provided by PMUs. The model of this estimator is linear if only PMUs are involved [6], [7].…”

Section: A On the Use Of Pmus For Voltage Instability Detectionmentioning

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

View full text Add to dashboard Cite

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.

show abstract

“…Ese tiempo se convierte en una restricción tecnológica de los SCADA tradicionales, que además solo manejan magnitudes del voltaje y de las corrientes por las líneas. Esos dos datos directamente entran a una etapa de cálculo para despejar otras variables de interés, por lo general mediante un programa denominado de estimación de estados (Schweppe and Wildes, 1970;Phadke et al, 1986).…”

Section: Introductionunclassified

Implementación de un sistema de monitoreo de área amplia a escala de laboratorio para sistemas eléctricos de potencia

Alba

Apodaca-Zamora

Ortiz-Muro

2018

IIT

View full text Add to dashboard Cite

ResumenLos sistemas eléctricos de potencia operan bajo condiciones controladas producto de una planeación estratégica y monitoreo de diversos procesos mediante Sistemas de Supervisión, Control y Adquisición de Datos (SCADA). Esas herramientas de apoyo se forman por cantidad de dispositivos que terminan alimentando software que resuelve ciertas aplicaciones de tiempo real. La mayoría de aplicaciones actualmente responden con una demora del orden de segundos en tanto se agrupa la información desde distintas subestaciones y se controlan errores del proceso. Reducir ese intervalo de concentración de la información de tiempo real y elevar la precisión de la medición global de la red es tema de investigación en la comunidad de expertos. La tendencia mundial es recurrir a nuevas tecnologías de comunicaciones y de medición digital, ambas operando con registros digitalizados con una referencia de tiempo global. Ese es el concepto de sistema de monitoreo de área amplia (WAMS), como sistema que alimenta aplicaciones de registros provenientes de unidades de medición fasorial sincronizadas (PMU). El artículo describe un WAMS virtual a escala de laboratorio aplicable a probar futuras aplicaciones. Bajo ese enfoque se diseñaron PMU que remiten datos con una tasa de transmisión de datos de entre 10 y 60 paquetes por segundo. Se expone como se implementó la interfaz gráfica, características y estructura acoplada a una plataforma de simulación de tiempo real. Descripores: PMU, WAMS, SCADA. AbstractInterconnected Power Systems perform as result of strategic plans and by monitoring processes with Supervisory, Control and Data Acquisition (SCADA) System. These tools used to be formed by several devices feeding dedicated software responding on-line. Such programmed applications suffer a delay by the order of seconds while substation information is grouped and internal error of processes is controlled. Reduction of time for concentrating real time information and data precision becomes a research topic for the community of experts. Worldwide tendency is the use of new technologies such as digital communication systems and digital measurement, they both dealing with a common time reference. That's our concept of WAMS as an element dedicated for feeding software applications taking data from PMU´s. Under that assumption, we present PUM designs transmitting data in the order of 10-60 samples per second. The article describes a virtual WAMS at laboratory scale for assessing future applications. It is exposed the user interface, characteristics and the structure coupled to a real time simulator.

show abstract

State Estimation with Phasor Measurements

Cited by 143 publications

References 0 publications

Deployment and demonstration of wide area monitoring system in power system of Great Britain

Deployment and demonstration of wide area monitoring system in power system of Great Britain

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

Implementación de un sistema de monitoreo de área amplia a escala de laboratorio para sistemas eléctricos de potencia

Contact Info

Product

Resources

About