Multi-Period Co-Optimization of Energy and Reserves using an Optimal Power Flow Formulation

Robin Naidoo and Rajendran Naidoo


optimal power flow, multi-period, co-optimization, inter-temporal constraints


Markets for primary energy and generation reserves are intricately intertwined due to the inverse relationship that exists between energy and reserves. The provision of reserves generally reduces the amount of primary energy a generating unit can produce and vice versa. This suggests that co-optimization of energy and reserves in a simultaneous auction is necessary for optimal procurement and costing of these services. This paper presents an optimal power flow formulation for the co-optimization of energy and reserves over a multi-period planning horizon. The formulation is tested on the IEEE 24 Bus Reliability Test System (IEEE 24 bus RTS) over a 24 hour planning horizon.

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