A reconfiguration algorithm for electrical distribution system to reduce system
losses is presented. The algorithm determines the switching patterns as a function of
time. Either seasonal or daily time studies may be performed. Both manual and automatic
switches are used to reconfigure the system for seasonal studies, whereas only automatic
switches are considered for daily studies.
An algorithm for load estimation is developed. The load estimation algorithm
provides load information for each time point to be analyzed. The load estimation
algorithm can incorporate any or all of the following: spot loads, circuit measurements,
and customer time-varying diversified load characteristics. Voltage dependency of loads
is considered at the circuit level. It is shown that switching at the system peak can reduce
losses but may cause a marginal increase in system peak. Voltage and current constraints
are incorporated in the reconfiguration algorithm.
Data base tables and data structures used in the algorithm are described. Example
problems are provided to illustrate results.
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