Skip to main content
SpringerLink
Log in

Comparison of optimal capacitor placement methods in radial distribution system with load growth and ZIP load model

  • Research Article
  • Published:
Frontiers in Energy Aims and scope Submit manuscript

Abstract

In this paper, a combined power loss sensitivity (PLS) index-based approach is proposed to determine the optimal location of the capacitors in the radial distribution system (RDS) based on the real and reactive combined loss sensitivity index, as capacitor placement not only reduces real power loss with voltage profile improvement but also reduces reactive power loss due to the reactive power compensation in the network. The results have been obtained with the existing methods of power loss index (PLI) and index vector (IV) method for comparison. Besides, the optimal placement has been obtained with the proposed method as well as existing methods and the total kVar support has been obtained. In addition, the results of net cost savings for the 10-, 34-, and 69-bus systems are obtained for comparison. Moreover, the results have been obtained for a large system of 85 buses to validate the results with combined sensitivity based approach. Furthermore, the load growth factor has been considered in the study which is essential for the planning and expansion of the existing systems, whereas the impact of the realistic load model as ZIP load model has been considered for the study of all the systems.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. Sallam A A, Malik O P. Electrical Distribution Systems. John Wiley and Sons, 2011

    Book  Google Scholar 

  2. Goswami S K, Basu S K. Direct solution of distribution system. IEE Proceedings. Generation, Transmission and Distribution, 1991, 188(1): 78–88

    Google Scholar 

  3. Chiang H D. A decoupled load flow-method for distribution power networks: Algorithms, analysis and convergence study. International Journal of Electrical Power & Energy Systems, 1991, 13(3): 130–138

    Article  Google Scholar 

  4. Das D, Kothari D P, Kalam A. Simple and efficient method for load flow solution of radial distribution networks. International Journal of Electrical Power & Energy Systems, 1995, 17(5): 335–346

    Article  Google Scholar 

  5. Haque MH. Load flow solution of distribution systems with voltage dependent load models. Electric Power Systems Research, 1996, 36(3): 151–156

    Article  Google Scholar 

  6. Mok S, Elangovan S, Longjian C, Salama M. A new approach for power-flow analysis of balanced radial distribution systems. Electric Machines Power Systems, 2000, 28(4): 325–340

    Article  Google Scholar 

  7. Ghosh S, Das D. Method for load-flow solution of radial distribution networks. IEE Proceedings. Generation, Transmission and Distribution, 1999, 146(6): 641–648

    Article  Google Scholar 

  8. Nanda J, Srinivas M S, Sharma M, Dey S S, Lai L L. New findings on radial distribution system load flow algorithms. In: Proceedings of IEEE Power Engineering Society Winter Meeting. Singapore, 2000, 2: 1157–1161

  9. Aravindhababu P, Ganapathy S, Nayar K R. A novel technique for the analysis of radial distribution systems. Electr Power Energy Systems, 2001, 23(3): 167–171

    Article  Google Scholar 

  10. Augugliaro A, Dusonchet L, Ippolito M G, Sanseverino E R. An efficient iterative method for load-flow solution in radial distribution networks. In: Proceedings of IEEE Porto Power Tech. Porto, Portugal, 2001, 10–13

  11. Mekhamer S F, Soliman S A, Moustafa M A, El-Hawary M E. Load flow solution of radial distribution feeders: A new contribution. International Journal of Electrical Power & Energy Systems, 2002, 24(9): 701–707

    Article  Google Scholar 

  12. Eminoglu U, Hocaoglu M H. A new power flow method for radial distribution systems including voltage dependent load models. International Journal of Electrical Power & Energy Systems, 2005, 76(2): 106–114

    Google Scholar 

  13. Satyanarayana S, Raman T, Sivanagaraju S, Rao G K. An efficient load flow solution for radial distribution network including voltage dependent load models. Electric Power Components and Systems, 2007, 35(5): 539–551

    Article  Google Scholar 

  14. Nagaraju K, Sivanagaraju S, Ramana T, Prasad P V. A novel load flow method for radial; distribution system for realistic loads. Electrical Power Components and Systems, 2011, 39(2): 128–141

    Article  Google Scholar 

  15. Chiang H D, Wang J C, Cockings O, Shin H D. Optimal capacitor placements in distribution systems: Part1: A new formulation and the overall problem. IEEE Transactions on Power Delivery, 1990, 5(2): 634–642

    Article  Google Scholar 

  16. Chiang H D, Wang J C, Cockings O, Shin H D. Optimal capacitor placements in distribution systems: Part2: Solution algorithms and numerical results. IEEE Transactions on Power Delivery, 1990, 5(2): 643–649

    Article  Google Scholar 

  17. Grainger J J, Lee S H. Optimum size and location of shunt capacitors for reduction of losses on distribution feeders. IEEE Transactions on Power Apparatus and Systems, 1981, 100(3): 1105–1118

    Article  Google Scholar 

  18. Lee S H, Grainger J J. Optimum placement of fixed and switched capacitors on primary distribution feeders. IEEE Transactions on Power Apparatus and Systems, 1981, PAS-100(1): 345–352

    Article  Google Scholar 

  19. Grainger J J, Lee S H. Capacity release by shunt capacitor placement on distribution feeders: A new voltage-dependent model. IEEE Transactions on Power Apparatus and Systems, 1982, PAS-101(5): 1236–1244

    Article  Google Scholar 

  20. Bala J L Jr. Kuntz P A, Tayor M. Sensitivity-based optimal capacitor placement on a radial distribution feeder. In: Proceedings of Northcon 95 IEEE Technical Application Conference, Portland, USA, 1995, 225–230

  21. Sundhararajan S, Pahwa A. Optimal selection of capacitors for radial distribution systems using a genetic algorithm. IEEE Transactions on Power Systems, 1994, 9(3): 1499–1507

    Article  Google Scholar 

  22. Mithulananthan N, Salama M M A, Canizares C A, Reeve J. Distribution system voltage regulation and VAR compensation for different static load models. International Journal of Electrical Engineering Education, 2000, 37(4): 384–395

    Article  Google Scholar 

  23. Mohamed M. Hamada, Mohamed A.A. Wahab, Abou-hashema M.El-Sayed and Husam A. Ramadam. A new approach for capacitor allocation in radial distribution feeders. 2012-10, http://infomesr.org/attachments/W09-0006.pdf

  24. Subrahmanyam J B V, Radhakrishanana C. A Simple method for optimal capacitor placement in unbalanced radial distribution systems. Electrical Power Components and Systems, 2010, 38(11): 1269–1284

    Article  Google Scholar 

  25. Mathworks Corporation. SIMULINK Toolbox of MATLAB Version 7.6, 2008

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Department of Electrical Engineering, National Institute of Technology, Kurukshetra, 136119, India

    Veera Venkata Satya Naryana Murty & Ashwani Kumar

Authors
  1. Veera Venkata Satya Naryana Murty
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Ashwani Kumar
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Ashwani Kumar.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Murty, V.V.S.N., Kumar, A. Comparison of optimal capacitor placement methods in radial distribution system with load growth and ZIP load model. Front. Energy 7, 197–213 (2013). https://doi.org/10.1007/s11708-013-0249-7

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s11708-013-0249-7

Keywords

Search

Navigation