Abstract: Reduction of loss is the critical function in a Distribution Management System (DMS). Commonly used reactive power (var) resource in Distribution Management System is switchable shunt capacitor banks. Today distributed energy resources (DER) are becoming another important var resource. This paper proposes an advanced loss reduction approach to achieve the optimal control coordination among capacitors and DERs which in turn reduce the losses and thereby increasing efficiency of DMS much greater than traditional practices. The proposed approach is developed on the basis of the detailed multi-phase distribution network modelling .The feasibility of the proposed method is demonstrated using MATLAB simulation. Finally, some experimental results are also presented to demonstrate the effectiveness and feasibility of the proposed approach.

Keywords: Distributed energy resources Distribution management system, Efficiency improvement, Harmonics reduction, Loss reduction approach, Reactive power flow control, Shunt capacitor banks. Voltage violation correction.