Optimal pmu placement for distribution networks

Abstract

This paper presents the optimal phasor measurement (PMU) placement for distribution networks. The optimal PMU placement (OPP) formulation from related literatures is presented in integer linear programming (ILP) framework where zero injection buses (ZIBs), PMU channel limitation, PMU outages and line outages were considered. Existing methods for OPP search space reduction (OPPSSR) such as the predetermined buses, ZIBs and leaf buses are also presented. To further reduce the search space for OPP, a method network reduction and deterministic PMU placement were proposed in dealing with non- branching bus series (NBS) that may be present in radial systems such as large distribution networks. Results have shown that the proposed OPPSSR methods was able to give the same optimal solutions with reduced amount of optimization.