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The synchrophasor technology has become focus of many theoretical, conceptual and practical studies lately due to an increased opportunity to improve power system reliability and security through enhanced monitoring, protection and control. The paper provides a survey of signal processing, communication and networking issues surrounding this topic so that professionals from related areas can benefit...
We propose a new synchronized event technique for SmartGrid. A Software-Based IEEE 1588–2008 synchronized event for Energy Measurements System (EMS) and for Intelligent Electronics Devices (IEDs). This Electronic Device comprise two main technologies: a NI cRIO-9074 integrating the acquisition and synchronization and a NI PCI_1588 card for Master task. For the essays we have defined one experimental...
An alternative to real-time simulation for hardware-in-the-loop testing is proposed. This involves system simulation, not necessarily done in real time, and real-time playback of the simulated output to the controller under test. The time-stamped controller output is stored and subsequently fed as an input to the simulation. This whole process is done iteratively as in the Waveform Relaxation method,...
With the rapid development of ship power system, the former field bus network of ship power system can not meet the new communication needs. The Real Time Ethernet is proved more efficient and versatile than the current field bus technology, and IEC 61158 ED4 has included Ethernet/IP, ProfiNet, Modbus TCP, EtherCAT, PowerLink , SERCOS III, EPA, and so on. This paper focus on the implementing of Real...
This is a description of a panel on the subject of synchronized measurements in power system operation. A number of experts will address international research issues and practices from a wide range of perspectives. Their views, drawn from academic, research, and industry experiences, will add to the important topic of synchronized measurements and their incorporation in power system operational practices.
The load control of power system is a measure for alleviate electric imbalance between supply and demand of load and guarantee effectively that the electric wire netting is operated safely and steadily, so it is very necessary to set up a set of electric load control system incorporating the real-time control, load predict, intellectual warning, long-range remote control into an organic whole. This...
The Brazilian National Power Grid Operator - ONS - has successfully completed the design and specification of the next generation set of four SCADA/EMS systems that will support the real-time operation of the Brazilian power system. The main goal of this new concept is to provide a unique and synchronized platform architecture (named REGER, Energy Management Network in Portuguese) for all five control...
This paper / presentation is discussing the use of Synchronized Phasor Measurement Technology, which is now being used for monitoring power system status and dynamic transient event recording at Southern California Edison (SCE)off-line and in Real-time. This real time monitoring system is expected to enhance the Transmission system reliability and provide wide area visibility of the WECC system. The...
With phasor measurement units (PMU) installed in power systems, synchronized measurements are now available in real time. These global measurements can be utilized to develop real time visualization and system monitoring tools. The characteristic ellipsoid (or minimum volume enclosing ellipsoid (MVEE)) method is one such recently proposed tool for identification of system disturbances.This paper examines:...
With information and measurement technology evolving rapidly within the electric power industry, wide-area measurement, monitoring and control (WAMC) is deemed to be the key technology to improve power system reliability. Guided by this vision, the North American SynchroPhasor Initiative (NASPI) is a nation-wide project that collaborate various resources to build the infrastructure of WAMC across...
A major step in the evolution of Energy Management System (EMS) capabilities is towards improved presentation of real-time power system condition information (not just data) to the system operator; the primary purpose being to facilitate prompt identification and location of problem areas, and to expedite confident decision-making, in order to mitigate or obviate escalation of the problem at hand.
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