Supervisory control and data acquisition

Gaushell, D.J.; Darlington, H. T.

doi:10.1109/proc.1987.13932

Cited by 67 publications

(26 citation statements)

References 4 publications

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“…SCADA system has several common functions [22]:  Data Acquisition (DA)  Human Machine Interface (HMI)  Supervisory Control  Alarm Processing  Information storage and Reports  Sequence of Events Acquisition  Data Calculations  Special RTU Processing/Control Applications for power system operation and control combined into EMS. Some common applications are list as blow [2]:…”

Section: Control Center Applicationsmentioning

confidence: 99%

“…RTU receives requests for data reading and responds corresponding data. SCADA system in general has data rate about one sample per two or three seconds [22]. Therefore, the scanning time of whole system needs several seconds to minutes depending on the scales of the grids.…”

Section: Security Performance and Interoperabilitymentioning

confidence: 99%

“…On the other hand, it is not necessary for all applications to have high data report rate which put a higher bandwidth requirement for the communication network. For example, display of overview system status for operator normally does not need to refresh more frequently than 10 seconds [22]. To the normal load management, it is based on bidding period of electricity market which could be hourly, 30 minutes, or even 5 minutes.…”

Section: Security Performance and Interoperabilitymentioning

confidence: 99%

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Framework Incorporating Synchronized Phasor Data for Power System Operation and Control

Zhu

Chenine

et al. 2012

9th IET International Conference on Advances in Power System Control, Operation and Management (APSCOM 2012)

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This position paper presents initial research and investigation on a unified framework combining two independent systems, the legacy SCADA system and the synchronized phasor data system, that share the same measurement sources, i.e., current and voltage transducers and the same communication medium. In this framework, conventional SCADA system coupled with substation automation system are modeled together with synchronized phasor systems. The contribution of this paper also includes a state-ofthe-art survey of topics related to the proposed architectures. Furthermore, an overview of the data flows between substation and control centers including both SCADA and phasor measurements are presented. Taking into consideration the growing interest in communication and automation standardization this paper also addresses the communication between the substations coupled with relevant standards and technology.

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Section: Control Center Applicationsmentioning

confidence: 99%

Section: Security Performance and Interoperabilitymentioning

confidence: 99%

Section: Security Performance and Interoperabilitymentioning

confidence: 99%

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Framework Incorporating Synchronized Phasor Data for Power System Operation and Control

Zhu

Chenine

et al. 2012

9th IET International Conference on Advances in Power System Control, Operation and Management (APSCOM 2012)

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“…Con una arquitectura tradicional de sistema de Supervisión, Control y Adquisición de Datos (SCADA) es común acumular tiempos del orden de ½ a 2 segundos, previo a presentar una imagen visual o señalizar alguna violación de límites operativos (Gaushell y Darlington, 1987). 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.…”

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

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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.

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“…There are four main components that make up a SCADA systems: the supervisory system or master terminal unit (MTU), remote terminal units (RTU), a communications network, and field instruments or devices [8][9][10]. The exact nature of the different components depends greatly on the specific SCADA system and its topology.…”

Section: Scada Componentsmentioning

confidence: 99%

Security hardened remote terminal units for SCADA networks.

Hieb

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Supervisory control and data acquisition

Cited by 67 publications

References 4 publications

Framework Incorporating Synchronized Phasor Data for Power System Operation and Control

Framework Incorporating Synchronized Phasor Data for Power System Operation and Control

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

Security hardened remote terminal units for SCADA networks.

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