Identification of Preferable Distributed Generators Locations for Congestion Relief in Multi-Bus Power Network

Barnali K. Sarkar, Abhijit Chakrabarti, Abhinandan De

Department of Electrical Engineering, Indian Institutes of Engineering Science and Technology, Shibpur, India.
Jadavpur University, Kolkata, India.

DOI: 10.4236/epe.2014.67015                

Abstract

Installation of Distributed Generator (DG) is a well accepted method to improve power system operation from the point of reducing congestion and improving voltage profiles. For best results, Distributed Generators should be placed at strategic locations to exploit maximum benefits out of them. The (N-1) contingency criterion has been taken into account in this work. Most congested lines of the grids are ranked by congestion Index and considered to study the impact of DG penetration on congestion. The present paper proposes contribution factors of Distributed Generators for the placement of DG to keep the line flow within the capacity of each transmission line of the network. The results obtained from IEEE 30-bus test system indicate that the proposed methods are capable of identifying desirable DG location and its maximum allowable size. The influence of DG on bus voltage profile has also been demonstrated in this paper.

Keywords

Distributed Generators, Congestion Index, Contribution Factor of DG, Voltage Sensitivity, Zone Classification

Conflicts of Interest

The authors declare no conflicts of interest.

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