High Power Loss Reduction In Enugu Electrical Distribution Systems Using Heuristic Technique For Capacitor Placement.

ABSTRACT

This project involves research on loss reduction in a distribution

system. The Enugu distribution system is the case study. The type of

losses, the causes of losses and methods of loss reduction in distribution

system were presented. A method based on a heuristic technique for

reactive loss reduction in distribution system is chosen for this work

because it provides realistic sizes and locations for shunt capacitors on

primary feeder at a low computational burden. The Gauss-siedel method

was used for load analysis while simulation work was done using

MATLAB software. The variation of the load during the year is

considered. The capital and installation cost of the capacitors are also

taken into account. The economical power factor is also determined so

as to achieve maximum savings. This method is applied to a 34 bus,

11KV, 6MVA distribution system with original power factor of 0.85. The

results from the analysis show that the losses are reduced from 59.2692

to 49.4KW using capacitor maximum rating of 1200 (750+450) KVAR at

an optimum power factor of 0.96. This translates to a saving of

N39,500.00 per year after amortizing the capital and installation costs of

applying the compensating capacitors.

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