Optimal Access Point and Capacity of Distributed Generators in Radial Distribution Systems for Loss Minimization Including Load Models

  • Satish Kumar Injeti Sir C. R. Reddy College of Engineering, Eluru, in Andhra Pradesh State, India
  • Navuri Prema Kumar Electrical Engineering at College of Engineering, Andhra University, Visakhapatnam, in Andhra Pradesh, India
Keywords: distributed generation, load models, meta heuristic algorithms, optimal sizing, optimization techniques, radial distribution system

Abstract

Distributed generation (DG) sources are predicated to play major role in distribution systems due to the demand growth for electrical energy. Location and sizing of DG sources found to be important on the system losses and voltage stability in a distribution network. This article proposes, an approach to determine the optimal sizing of multiple distributed generators in radial distribution system at unspecified power factor considering different load models. It is shown that load models can significantly affect the optimal sizing of DG units in radial distribution systems. The prior objective is to minimize network power losses hence to improve the voltage profile. Various optimization techniques are applied on the objective function. A detailed performance analysis is carried out on 38-bus radial distribution systems to demonstrate the effectiveness of the proposed techniques. Performing multiple power flow analysis on 38-bus system, the effect of DG sources on the most sensitive buses to voltage collapse is also carried out.

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Author Biographies

Satish Kumar Injeti, Sir C. R. Reddy College of Engineering, Eluru, in Andhra Pradesh State, India

Mr. Satish Kumar Injeti, M.Tech., (corresponding author) is working as Associate Professor of Sir C. R. Reddy College of Engineering, Eluru, in Andhra Pradesh State, India. He obtained his B.Tech. degree in Electrical and Electronics Engineering from the J.N.T. University, Hyderabad in 2002 and Masters degree from J.N.T. University, Anantapur in 2005. Hhe is a research scholar of J.N.T.University, Kakinada. His areas of research include Distributed Generation, Cogeneration, Renewable Energy and Power System Optimization. He may be contacted at satishinjeti@gmail.com; injetisatishkumar@ieee.org;

Navuri Prema Kumar, Electrical Engineering at College of Engineering, Andhra University, Visakhapatnam, in Andhra Pradesh, India

Mr. Navuri Prema Kumar, Ph.D., is Associate Professor in Electrical Engineering at College of Engineering, Andhra University, Visakhapatnam, in Andhra Pradesh, India. He obtained his M.E. degree in Power Systems from NI T Trichy in 2000 and Ph. D from J.N.T.University, Hyderabad in 2007. His areas of interest include power quality, renewable energy, cogeneration and power system stability and optimization, FACTS etc. Prema Kumar may be contacted at prem_navuri@yahoo.co.in:

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Published
2014-04-01
Section
Articles