Impact Of Distributed Generators On Losses, Voltage Profile And Generation Cost

K. Jithendra Gowd*, Ch. SaiBabu**
* Lecturer, JNTUA College of Engineering, Anantapur, A.P.
**Professor, Dept. of EEE, University College of Engineering, JNT University, Kakinada.
***Associate Professor, Department of Electrical Engineering, University College of Engineering, Kakinada.
Periodicity:January - March'2010
DOI : https://doi.org/10.26634/jee.3.3.1121

Abstract

Distributed Generation (DG) is an emerging approach for providing electric power in heart of the power system. It mainly depends upon the installation and operation of small size, compact and clean electric power generating units at or near an electric load (customer). It has become necessary to investigate the technical and economic impact future connections of Distributed Generation on electric power distribution networks, and evaluate some of these effects of power sector deregulation.

In a power system network, proper planning and DG placement can minimize the system electrical losses, whilst improper placement could lead to increased system losses. This is utmost important since losses in any power network are proportional to the square of the current and offsetting load with DG reduces losses. B-coefficients method (Kron's loss formula or Loss coefficients method) is used to calculate the total system loss. B-coefficients are functions of the system operating state. If a new scheduling of generation is not drastically different from the initial operating condition, the loss coefficients may be assumed constant.

The factors influencing the power generation at minimum cost are operating efficiencies of generators, fuel cost, and line losses. Therefore the electrical losses will affect generation costs. Power networks with higher losses have higher fuel costs. Economic dispatch is a method of finding the real power scheduling of each plant in such a way as to minimize the total generation costs. Economic dispatch method is implemented to minimize the total generation cost.

In this paper a suitable location of the DG to improve network performance at reduced or controlled network losses, improved voltage profile and the generation cost are determined. The power system networks of 5-bus system and 26-bus systems are analyzed using MATLAB software.

Keywords

How to Cite this Article?

K. Jithendra Gowd, Sai Babu and S. Sivanaga Raju (2010). Impact Of Distributed Generators On Losses, Voltage Profile And Generation Cost. i-manager’s Journal on Electrical Engineering, 3(3), Jan-Mar 2010, Print ISSN 0973-8835, E-ISSN 2230-7176, pp. 11-21. https://doi.org/10.26634/jee.3.3.1121

References

[1]. W. El-Khattam, M.M.A, Salama, “Distributed generation technologies, definitions and benefits”, Electric Power Systems Research 71 (2004) pp.119–128.
[2]. Innocent E. Davidson, “Modeling and Analysis of a Multi-Bus Reticulation Network with Multiple DG (Part I - Electrical Losses)”, IEEE AFRICON 2004.
[3]. Innocent E. Davidson, “Modeling and Analysis of a Multi-Bus Reticulation Network with Multiple DG (Part III - Economic Dispatch)”, IEEE AFRICON 2004.
[4]. C.L. Wadhwa, “Electrical Power System”, Second Edition, 1996. Publisher New Age international (p) Limited, New Delhi.
[5]. H. L. Willis, “Analytical methods and rules of thumb for modeling DG-distribution interaction,” in Proc. 2000 IEEE Power Engineering Society Summer Meeting, Vol. 3, Seattle,WA, July 2000, pp. 1643–1644.
[6]. Ljubomir Kojovic, "Impact of DG on voltage regulation " , IEEE conference 2002.
[7]. M.A.Kashem, M.Negnevitsky, G.Ledwich, “ Distributed Generation for minimization of power losses in distribution systems ", IEEE conference 2006.
[8]. Hadi Saadat. “Power System Analysis” Fist Edition. 1999. Publisher: McGraw Hill International, San Francisco.
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