Transmission congestion relief by economic load management

TitleTransmission congestion relief by economic load management
Publication TypeConference Paper
Year of Publication2002
AuthorsNiimura, T., and Y. Niu
Conference NamePower Engineering Society Summer Meeting, 2002 IEEE
Pagination1645 -1649 vol.3
Date Publishedjul.
Keywordscomputer simulation, control design, control simulation, control system analysis computing, control system synthesis, deregulated transmission system, economic load management, heavily congested conditions, load management, marginal cost-based electricity prices, modified IEEE 30 bus system, nonfirm transactions curtailment, power system analysis computing, power transmission control, power transmission economics, tariffs, transmission congestion relief

This paper proposes an approach to congestion management in a deregulated transmission system. In heavily congested conditions, physical transmission congestion can be relieved by curtailing a small portion of nonfirm transactions. Resultant marginal cost-based electricity prices should drastically decrease. Simple and transparent indices are introduced so that both load and supplier can express their levels of acceptance with the congestion management process, and the system operator can select the most effective and desirable congestion relief measures. The proposed approach is tested on a modified IEEE 30 bus system.


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