Abstract:
Various Optimal PMU Placement (OPP) formulation have been proposed in the literature for topological
observability of a power transmission system. This paper assesses
the suitability of such methods for the placement of DistributionLevel Phasor Measurement Units (known as D-PMUs or µPMUs)
in the active distribution network (ADN). The various OPP
models such as cost minimization, channel limitation, effect of
zero injection buses, single PMU loss, single line outage, multistage placement, maximization of measurement redundancy are
framed and solved using Integer Linear Programming (ILP) for
various ADNs such as, IEEE 33, 69 and 123 bus system. The
ratio of the number of buses and µ-PMUs, system measurement redundancy, depth of unobservability are considered as
performance indices to compare various OPP solutions in case of
normal operation, network reconfiguration and island formation.
