Single-phase two-wire (12w) feeders or branch
circuits are common in premises wiring system serving lighting
and small-appliance loads. However, single-phase three-wire
(13w) feeders and branch circuits have some advantages, such
as: moderating voltage drop, reducing line loss and cutting the
amount of conductors. This paper presents a novel approach to
solve the power flow problem of the 13w premises wiring system.
The proposed approach is based on the loop frame of reference,
rather than the traditional approach which is normally based on
the bus frame of reference. Because the proposed approach is
mainly on the basis of the foundation of graph theory, the feeders
or branch circuits can be represented in a more detailed manner.
Furthermore, the performance equation or full-scale model of the
premises wiring system can be built in an easy way. Final, the
proposed approach was verified through comparison of its results
with the measurement data of field tests. The proposed approach
and implementation technique are of value to engineers and
technicians in the design and operation of premises wiring system
for dwelling units or smart buildings and may be implemented in
the energy management system (EMS).