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On-line power system analysis enables to make power mode-related decision based on information available at real time. The quality of the studies and efficiency of power system operation are closely associated with the accuracy of the power system models. Accurate and quick decision based on analysis on real time data has been necessary for making operational plan under the deregulation of power system...
Korea power exchange (KPX) plays a pivotal role in South Korea's electric power industry. As a neutral and independent organization, KPX coordinates the flow of electricity through all transmission networks of South Korea, ensure reliable operation of the grid, operate cost-based competitive electricity market, and plan long-term generation/transmission expansion to secure reliable power supply. To...
With the development of electric power market, the centralized legacy energy management system (EMS) is hardly adaptive to the polytrope of market environment. Firstly the definitions of agent as well as multi-agent system (MAS) are analyzed. Then based on the knowledge of ontology and considered IEC 61970 common information model (CIM) as the data ontology of EMS region, the structure of ontology...
Prior to the start up of the standard market design (SMD-2), the New York independent system operator (NYISO) used various tools to maintain and update three network models used to support the energy management system (EMS) and business management systems (BMS) applications. The process of maintaining and updating the network models for EMS & BMS applications became more challenged and cumbersome...
The following topics were dealt with: energy storage technologies; on-line reliability assessment and control; HVDC and FACTS technologies; communications for distribution system; power transformer; wind farm; SCADA; EMS; power market; power electronics; power system planning; power quality; power system harmonics; power system protection; power system control; power system simulations; substation;...
The IEC TC 57 common information model (CIM) started with a focus on the power system models in the energy management systems (EMS) domain. The need for a common model in distribution management systems (DMS) and market operations drove CIM into those areas. The CIM was created in order to provide an information exchange format to facilitate the integration of applications and systems independent...
Summary form only given. Electric utility industry has undergone extensive restructuring during the last 10-15 years not only in the United States but throughout the World. This restructuring is mainly focused on promoting competition in the generation market. The transmission systems that were originally built for serving the native loads and interconnecting generation are now open to all users....
Ontario market system created more stringent requirement on state estimator that support not only the traditional EMS operation but also the real time and pre-dispatch market operations. This paper describes the key requirements for a state estimator in the market environment, functional enhancements implemented to achieve 99.6% availability, and operational experience with the state estimator software
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