Average Marginal Loss Allocation of Distribution Networks

Abstract

This paper proposes a new method for allocation of losses to consumers in distribution systems (DSs) under the deregulated environment of power systems. Proposed method follows the principle of electrical circuit to determine the power flow in the distribution branches and adopts branch oriented approach. It identifies the marginal contribution of real and imaginary part of load current in system losses corresponding to their power consumptions at nodes. Apart from traditional marginal loss coefficient (MLC) methods, however, proposed method recovers entire system losses without an additional step of reconciliation. Average marginal contribution of both real and imaginary part of load current makes proposed method more efficient and adoptable specially for radial structure of DSs. In order to test the proposed method, 28-bus DS is considered. Results of the proposed method are compared and validated with than that of other available methods in literature.