Optimal Capacitor Placement in Radial Distribution Systems Using Flower Pollination Algorithm
- August 21, 2018
- Posted by: RSIS
- Categories: Electrical and Electronics Engineering, Electronics & Communication Engineering
International Journal of Research and Scientific Innovation (IJRSI) | Volume V, Issue VIII, August 2018 | ISSN 2321–2705
Optimal Capacitor Placement in Radial Distribution Systems Using Flower Pollination Algorithm
K. Prabha Rani, U. P. Kumar Chaturvedula
Aditya College of Engineering, Surampalem, Andhra Pradesh, India
Abstract: Optimal capacitor placement is carried out in distribution systems for active power loss reduction and improving voltage profile. In this paper, Flower Pollination Algorithm (FPA) is be implemented for optimal allocations and sizing of capacitors in various distribution systems. First the candidate buses for installing capacitors will be suggested using Power Loss Index (PLI). Then the FPA is employed to deduce the size of capacitors and their locations from the selected buses. The objective function is designed to reduce the total cost and consequently to increase the net saving per year. The proposed algorithm will be tested on 15, 69 and 85 bus radial distribution systems. The voltage profile and reduction in active power loss are observed on the three test systems.
Keywords: Flower pollination algorithm, optimal capacitor placement, radial distribution
I. INTRODUCTION
The topology based load flow program is used in this paper. This involves construction of two network matrices based on topology and matrix operations. Computationally this method is very efficient. This method requires less computer memory. Convergence is guaranteed for all types of practical radial network with a realistic X/R ratio. Constant power Load modeling is considered in this work. This method can also be used for composite load modeling.
In the recent past, attention has been focused in reduction of losses in distribution system which results in saving of capital investment. There are various methods to determine the interconnections between sub-stations so as to increase the reliably. In these approaches, shunt capacitors are introduced to reduce losses, improve voltage profile by providing reactive power.
There are several methods for loss reductions in distribution systems. Fixed load and varying loads have been considered uniformly distributed load for optimal capacitor placement. Many works have considered reactive power compensation that used on a simple line feeder that had no lateral tree or a simple lateral feeder without branches. All these may not be considered as realistic distribution systems.
