An Empirical Formula for Transmission Loss Allocation of Power Systems

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  • Empirical Formula for Transmission Loss Allocation of Power Systems

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Abstract

This paper presents an empirical formula for preliminary loss allocation to each generator in a network. From the relationship of Incremental Transmission Loss (ITL) and the power outputs of generators, we have derived a preliminary loss allocation formula for each generator. To get the allocated losses to generators, the preliminary losses have been adjusted according to the correction factors calculated from them. Preliminary losses are adjusted so that the sum of allocated losses equals the total loss calculated by DC Optimal Power Flow (DC-OPF). Using DC-OPF the procedure for loss allocation including the preliminary loss calculation formula has been tested for 6-bus-3-generator and IEEE 118-bus-36-generator model power systems. Allocated losses calculated by our procedure have been compared with those of incremental method for the both model power systems and the features of the proposed method have been discussed.

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