ISSN E 2409-2770
ISSN P 2521-2419

Voltage Profile and Stability Analysis for High Penetration Solar Photovoltaics

Vol. 5, Issue 5, PP. 109-104, May 2018


Keywords: Solar PV Power, Power Integration, Grid Impacts, Hosting Capacity, IEEE 9 Bus System

Download PDF

The enormous amount of energy from sun has led to a rapid growth of the use of Solar Photovoltaic power. The solar PV power can be used in stand-alone, grid connected, and hybrid configurations. Grid connected solar PV power plants are huge and are increasing rapidly because of the diminishing of conventional fossil fuels� resources for power generation. The solar PV power plants are connected to existing power system at transmission and distribution levels. This solar PV power integration is likely to have impacts on the power system. The steady state impacts of integrating solar PV power were studied on an IEEE 9 Bus test system. Impacts on voltage levels and profile, voltage drop, voltage stability, line losses and loading of the system were studied. A comparative analysis of system without solar PV power, with PV power and different levels of penetration of solar PV power was done with the aid of a power system software namely ETAP. The study revealed that the integration of solar PV power improves the voltage levels and drops and voltage stability. However, the increase in level of penetration beyond a certain point had negative impacts on the power system i.e. worsening of voltage profile, increase of losses which can also lead the system to become unstable. From this the hosting capacity (limit to which maximum power can be penetrated) of the system is determined.

  1. Engr. Muhammad Adil Khan: University of Engineering and Technology (UET), Peshawar, Pakistan.
  2. Dr. Muhammad Naeem Arbab: University of Engineering and Technology (UET), Peshawar, Pakistan.
  3. Engr. Zainab Huma: University of Engineering and Technology (UET), Peshawar, Pakistan.

Engr. Muhammad Adil Khan Dr. Naeem Arbab Engr. Zainab Huma

  1. OGJ Editors, BP-statistical review of world energy 2014 63rd Edition BP, London, 2014
  2. Perez R., Kivalov S., Schlemmer J., Hemker K., Hoff T.E., 2012. Short-term irradiance variability: Preliminary estimation of station pair correlation as a function of distance. Solar energy, 2170-2176.
  3. Joakim Waiden, Ewa Wackelguard, Jukka Pateero and Peter Lond (December 2010) Impacts of distributed PVs on network voltages: Case study of 3 low voltage distribution grids in Sweden.
  4. Prabha Khundhar (1994), Power System Stability and Control, McGraw-Hill, Inc.
  5. Etherden, N. and Bollen, M. H. (2011), Increasing the hosting capacity of distribution networks by curtailment of renewable energy resources. IEEE Trondheim PowerTech.
  6. Rakebuzzaman Sahaha, N. Mithualananthana, C. R. Bunsulb, V. K. Ramchandara murthy, A review of key power system stability challenges for large scale PV integration, January 2015.
  7. Fareed Katiraei and Jullio Romiro Aguero (2011), Solar Photovoltaic Intgration Challennges, IEEE Power and Energy Magazine, vol. 8, no. 2, pages 61 - 70.
  8. F. Katiraei and J. R. Aguero, "Solar PV Integration Challenges," IEEE Power & Energy Magazine, pp. 62-71, May/June 2011.
  9. H. Lee Willis (2004), Power Distribution Planning Reference Book 2nd Edition, Raleigh, North Carolina: CRC Press.
  10. Math Bollen and Fainan Hassan, Integration of Distributed Generation in the Power System.
  11. R. Tonkoski, D. Turcott, and T. EI-Fouly, "Impact of high PV penetration on voltage profiles in residential neighborhoods," IEEE Trans. Sustainable Energy, vol. 3, no. 3, pp. 518- 527, Jul, 2012.
  12. Hadi Saadat ((2002) Power System Analysis, Published by McGraw-Hill Primis Custom Publishing, Boston, MA.
  13. C. Rodriguez and A. J. Amaratunga, �Dynamic stability of grid-connected photovoltaic systems�, IEEE Power and Energy Society General Meeting 2004.
  14. Heinrich. Habelin (2012), Photovoltaics System Design and Practice,Hoboken: John Wiley & Sons.