Voltage security analysis of power systems under deregulation

TitleVoltage security analysis of power systems under deregulation
Publication TypeConference Paper
Year of Publication2000
AuthorsLukic, M., T. Nakashima, and T. Niimura
Conference NameElectrical and Computer Engineering, 2000 Canadian Conference on
Pagination133 -137 vol.1
Keywordsapproximate power flows, available transfer capability, bilateral transactions, DC power flow models, deregulation, electrical power industry, electricity supply industry, load flow, power system security, power systems, power transmission, reactive power, reactive power capability, transmission lines, voltage security, voltage security analysis, voltage-reactive power model

In this paper, the authors analyze impacts of deregulation of electrical power industry in terms of voltage security. For bilateral transactions to be physically feasible, available transfer capability and other impacts must be carefully examined by the system operator. In the conventional approaches, mostly based on DC power flow models, approximate power flows on transmission lines and the associated costs are made available. However, the important voltage-reactive power model is neglected. Depending on the reactive power capability of the generators in the system, voltage security in case of bilateral transactions might pose a serious problem or can be positively supported by independent generators


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