A Study on Voltage Unbalance Compensation and Minimizing Loss in Distribution System using SVR

This paper describes a voltage unbalance compensation and minimizing loss in the distribution system by using three-phase individual step voltage regulator $(3\phi \mathrm{S}\mathrm{V}\mathrm{R})$. As a result of active efforts to promote renewable energy, there is a concern that voltage unbalance will increase due to an increase in distributed power sources. Therefore, this paper proposes a method of individual tap control for each phase of $3\phi \mathrm{S}\mathrm{V}\mathrm{R}$ by optimization. Through simulations, it was verified that all unbalance indices were below the constraint value, and the effectiveness of voltage unbalance compensation and minimizing loss by $3\phi \mathrm{S}\mathrm{V}\mathrm{R}$ was confirmed.