Load allocation for computer studies
the power flow technique which we have studies is based on knowing the real and
reactive power consumption at each bus point in the circuit. since we are not taking real
and reactive power measurements at each load in the circuit, how do we determine what
these values are? the typical approach is to take a set of measurements at one or more
points in the circuit. This process is referred to as load allocation.
Commercial power flow programs have a load allocation control scheme,such as that shown in
Fig 5. This particular screen is found in the Milsoft Windmil distribution analysis program.
the control point refers to a point in the network where the consumption is assumed to be know.
This could correspond to either three-phase or phase-by-phase power consumption with a measured
power factor if available. the total load for the allocation set-up shown in Fig.5 is assumed to
consist of three types of load: residential, kW demand and horsepower (motor). Each load type
can have a power factor, a coincidence factor, and a load factor associated with it.The coincidence factor is
the inverse of the diversity factor. Each load type also has an allocation method which can
be based on a number of criteria such as transformer kVA,customer kWh and a combination of
the number of customers and kWh consumption (REA)