A Study of the Factors Influencing the Optimal Size and Site of Distributed Generations

Abstract

Abstract-The paper solves a distributed generations placement problem considering loss and cost of DG as the main objectives while power quality issues like voltage magnitudes at different bus and harmonic distortion are maintained within some specified limits as per IEEE standards. To study the effect of several factors on DG placement the issues are considered individually first. Then the same problem is solved considering all the issues together. It has been shown that when all the issues are considered the harmonic distortion plays a vital role in deciding the DG locations and size. Again the harmonic distortions are more near to the harmonic generating loads. The shunt compensation is also included to improve the voltages to a specified limit.Index Terms-Distributed generations, genetic algorithm, harmonic distortion, power quality, renewable energy.

Optimal Placement and Sizing of Renewable Distributed Generation via Gravitational Search Algorithm

“…Thus, only small size of DG is needed at the other bus to obtain a higher loss reduction. In [4], a DG with size of 1300kW is capable of reducing voltage below 0.95 p.u only when it is placed at a specific bus. It is identified in the research that DG having size below 1300kW is unable to improve the voltage to specified value.…”