Learn More
In this paper we assume that time synchronized measurements will be ubiquitously available at all high voltage substations at very high rates. We examine how this information can be utilized more effectively for real time operation as well as for subsequent decision making. This new information available in real time is different, both in quality and in(More)
Invited Paper The power grid is not only a network interconnecting generators and loads through a transmission and distribution system, but is overlaid with a communication and control system that enables economic and secure operation. This multilayered infrastructure has evolved over many decades utilizing new technologies as they have appeared. This(More)
Invited Paper In this paper, we review the functions and architectures of control centers: their past, present, and likely future. The evolving changes in power system operational needs require a distributed control center that is decentralized, integrated, flexible, and open. Present-day control centers are moving in that direction with varying degrees of(More)
In recent years much of the discussion involving " smart grids " has implicitly involved only the distribution side, notably advanced metering. However, today's electric grids have many challenges involving the rest of the grid— the bulk power system—that can be mitigated by making it more intelligent. An enabling technology for helping the bulk power(More)
In the ongoing process to create a competitive electricity market, the problem of Ancillary Services is assuming a fundamental role. Ancillary Services are those services performed by generators, transmission and control equipment, which are necessary to support basic services and to maintain reliable operations and system security. In this paper, we focus(More)
—The rapid increase of phasor measurements on the high voltage power system has opened opportunities for new applications to enhance the operation of the grid. To take advantage of the high sampling rates of these measurement data, these applications will require a high-bandwidth, networked communication system. The specifications for this next generation(More)
The present communication architecture supporting control of the electric power grid makes it difficult to use the wealth of data collected at high rates in substations, retarding their use in new applications for controlling the grid. A flexible, real-time data network would make it possible to use these data for many more control and protection(More)