E. De Tuglie, P. Pugliese, and F. Torelli
Load following service, regulation, ancillary service, active power balance List of Symbols nT total number of transactions settled in the market nG number of generating units excluding the slack bus nL number of load nodes nC number of pure transit nodes P, P active power and its vector Q, Q reactive power and its vector I, I complex current injection and its vector E, E complex nodal voltage and its vector Y nodal admittance matrix ST R slack bus power contribution due to transact
As competitiveness characterizes more and more on the electricity industry, defining requirements and responsibilities of Ancillary Services is becoming a fundamental task. In this paper, we focus our attention on the Load Following service when it is competitively provided through bilateral contracts between supplier and customer in a bilateral transaction-based market. In this paper a new method has been developed for correlating system imbalances with unbalanced transactions. A control signal is provided by reset controllers to generators furnishing the load following service to transactions until power imbalances vanish.
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