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Feasibility assessment of simultaneous bilateral transactions in a deregulated environment

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1 Author(s)
Hamoud, G. ; Ontario Hydro, Toronto, Ont., Canada

A large number of transmission transactions is expected to take place with the introduction of competition into the electricity industry. These transactions need to be evaluated ahead of their scheduling time to check their feasibility with regard to the system conditions at the time of scheduling. Transmission system operators would have to honor and execute only transactions as far as the system design and system operating conditions permit. This paper describes a method for assessing the feasibility of simultaneous bilateral transactions with regard to the system economic dispatch and transmission system constraints. Transactions are classified into feasible and unfeasible. Feasible transactions can be accommodated without violating the system economic dispatch and transmission network constraints. Unfeasible transactions violate transmission network constraints and can not be accommodated fully without altering the system economic dispatch. The assessment method provides information on where and how much generation is to be rescheduled in order to accommodate an unfeasible transaction. Such information will be useful in deciding whether a particular unfeasible transaction is worth serving or not. The IEEE Reliability Test System (RTS) is used to illustrate the assessment method

Published in:

Power Systems, IEEE Transactions on  (Volume:15 ,  Issue: 1 )