Title page for ETD etd-06062008-171313

Type of Document Dissertation
Author Khan, Asif H.
URN etd-06062008-171313
Title Analysis of time varying load for minimum loss distribution reconfiguration
Degree PhD
Department Electrical Engineering
Advisory Committee
Advisor Name Title
Broadwater, Robert P. Committee Chair
Burns, John A. Committee Member
Lindner, Douglas K. Committee Member
Mili, Lamine M. Committee Member
Rahman, Saifur Committee Member
  • Electric network analysis
Date of Defense 1992-04-05
Availability restricted

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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