Abstract
Effect of HVDC transmission lines in a power system on different optimal power flow (OPF) objective functions is discussed in this paper. In this study differential evolution optimization algorithm is applied in AC-DC OPF problem, and compared with OPF in the same power system with no HVDC transmission lines to demonstrate the effect of this type of transmission line on the objective functions. In OPF problem definition, generator fuel cost considering valve effect is considered as objective function. The results of the proposed method on IEEE 30-bus power system illustrate that HVDC transmission lines improves the OPF from fuel cost point of view.
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