Total views : 380

Voltage Stability Assessment on a Distribution System without Wind Turbine Generators Connected


  • Department of Electrical and Information Engineering, Covenant University, Canaanland, Ota, Nigeria


This work investigates the healthiness of the Nigeria distribution grid (the test system) to accommodate the connection of wind turbine generators. The test distribution system is subjected to load-flow analysis; the program was developed in Matlab platform without wind turbine connection. This is necessary to know if the system voltages at each bus remain within specified limits and angle at each bus. The ability of a site to sufficiently accommodate wind generation does not only depend on wind speeds but its ability to interconnect to the existing grid. That is, it is not enough to say that the wind turbines should be connected to the grid just because there are sufficient wind speeds to drive the wind turbine, but the wind turbine generators must be able to connect with the existing grid (which must be healthy enough to accommodate the wind turbine generator).The result shows that the voltage magnitude at each bus is within the specified limit which shows that the network is healthy without wind turbine generators connected. The findings in this research work will give much better insight to potential investors in wind power in Nigeria.


Distribution, Grid, Load-Flow, Nigeria, Voltage Stability, Wind Turbine

Full Text:

 |  (PDF views: 336)


  • Sambo AS. Renewable energy option for sustainable development.In Renewable Electricity Policy Conference, Shehu Musa, Yar'adua, Abuja; 2006 Dec 11–12.
  • Kumar TP, Kartheek BN. A neuro-fuzzy controller for multilevel renewable energy system. Indian Journal of Science and Technology. 2016 Mar; 9(12):1–8.
  • Muller H, Poller M, Basteck A, Tilscher M, Pfister J. Grid compatibility of variable speed wind turbines with directly coupled synchronous generator and hydro-dynamically controlled gearbox. 6th Int'l Workshop on Large-scale Integration of Wind Power and Transmission Networks for Offshore Wind Farms, Delft, NL; 2006 Oct 26–28. p. 307– 15.
  • Hansen AD, Sorensen P, Blaabjerg F, Becho J. Dynamic modeling of wind farm grid interaction. Wind Engineering.2002 Jul 1; 26(4):191–208. Crossref.
  • Wind turbine modeling in digSILENT Riso-R-1400(EN) [Internet]. 2010 [cited 2010 Apr 28]. Available from: http//
  • Abraham A, Subramanian DP. Impact of parameter variations on the steady state behaviour of grid connected renewable energy conversion systems. Indian Journal of Science and Technology. 2014 Oct; 7(S6):48–55.
  • Liu J, Salama MMA, Mansour RR. An efficient power flow algorithm for distribution systems with polynomial load.International Journal of Electrical Engineering Education.2002 Oct 1; 39(4):371–86.
  • Eidiani M. A reliable and efficient method for assessing voltage stability in transmission and distribution networks.International Journal of Electrical Power and Energy Systems, Elsevier, ScienceDirect. 2011 Mar; 33(3):453–56.Crossref.
  • Hamouda A, Zehar K. Improved algorithm for radial distribution network load flow solution. International Journal of Electrical Power and Energy Systems, Elsevier, ScienceDirect. 2011 Mar; 33(3):508–14. Crossref.
  • Aravindhababu P, Ganapathy S, Nayar KR. A novel technique for the analysis of radial distribution systems.International Journal of Electrical Power and Energy Systems, Elsevier, ScienceDirect. 2001 Mar 1; 23(3):167–71.Crossref.
  • Mekhamer SF, Soliman SA, Moustafa MA, El-Hawary ME.Load flow solution of radial distribution feeders: a new contribution. International Journal of Electrical Power and Energy Systems, Elsevier, ScienceDirect. 2002 Nov; 24(9):701–7. Crossref.
  • Hamounda A, Zehar K. Improved algorithm for radial distribution networks load flow solution. International Journal of Electrical Power and Energy Systems, Elsevier, ScienceDirect. 2011 Mar; 33(3):508–514. Crossref.
  • Thukaram D, Banda HMW, Jerome J. A robust three phase power flow algorithm for radial distribution systems.Electric Power Systems Research, Elsevier, ScienceDirect.1999 Jun 1; 50(3):227–36. Crossref.
  • Das D, Nagi HS, Kothari DP. Novel method for solving radial distribution network. In the Proceedings of Institute of Electrical and Electronics (IEE) on Generation, Transmission and Distribution. 1994 Jul; 141(4):291–8.Crossref.
  • Singh S, Ghose T. Improved radial load flow method.International Journal of Electrical Power and Energy Systems, Elsevier, ScienceDirect. 2013 Jan; 44(1):721–7.Crossref.
  • Eminoglu U, Dursun B, Hocaoglu MH. Incorporation of a new wind turbine generating system model into distribution systems load flow analysis. Wind Energy. 2009 Mar; 12(4):375–90.
  • Lehmeyer. Report on Nigeria wind power mapping projects. Federal Ministry of Science and Technology, Nigeria; 2005. p. 37–51.
  • Chuong TT. Voltage stability investigation of grid connected wind farm. World Academy of Science, Engineering and Technology, International Journal of Electrical, Computer, Energetic, Electronic and Communication Engineering. 2008; 2(6):1163–7.
  • Felix AA, Aremu ACO, Ajibola AA, Anthony AU, Ishioma OA, Isaac SA. Connecting wind turbine generator to distribution power grid - a preload-flow calculation stage. Journal of Energy and Power Engineering (JEPE). 2014 Oct; 8(10):1811–5.
  • Felix AA. Voltage stability investigation of power system with grid-connected wind turbine generators: a case study of the nigerian distribution system [PhD thesis]. Canaanland, Ota, Nigeria: Covenant University; 2014.


  • There are currently no refbacks.

Comments on this article

View all comments

Creative Commons License
This work is licensed under a Creative Commons Attribution 3.0 License.