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Optimal Setting in PV Inverters for Network Loss Minimization

Due to demands for installation of self-use power generation systems of household electricity users, there has been a large increase in solar roof PV systems installation. At the same time, grid operators can take advantage of a large number of connected consumers' solar roof PV systems by controlling solar roof inverter to adjust reactive power receiving or supplying to help reduce energy loss on the power grid. This paper presents an algorithm to find optimal setting of the voltage and reactive power (Volt-Var) control function for minimum power losses. A simulation study was performed using python commands and DIgSILENT PowerFactory software. The study results show power losses comparisons of different scenario. The results also show that grid operators can save energy more than 37 percent or 24 kWh per day.