OPTIMAL STEADY STATE OPERATION OF UNIFIED POWER QUALITY CONDITIONNER FOR POWER LOSSES REDUCTION AND VOLTAGE REDUCTION IMPROVEMENT

Abstract

Abstract: A new optimization paradigm based on hybrid differential evolution is developed to solve the challenging problem of optimal steady state operation of unified power quality conditioner in a primary electric power distribution system. The objective is to minimize the power losses and improve voltage profile to determine the best location and the size of unified power quality conditioner (UPQC) while the load constraints, network constraints and operational constraints are satisfied. The voltage compensation can be done by using active power as well as reactive power. The problem is formulated as a non-linear multi-objective that cannot be efficiently solved by conventional optimization techniques. To illustrate the effectiveness of the proposed paradigm, simulation studies have been carried out on a 69 bus radial distribution system to define the number, optimal location and sizing of UPQC devices to be installed.