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ISSN E 2409-2770
ISSN P 2521-2419

Effects of Dispersed Generation on Voltage Profile and Power Losses


Vol. 8, Issue 01, PP. 18-30, January 2021


Keywords: Renewable Distributed Generation, Distribution System Operators, Cross-Linked Polyethylene, Load Tap Changing, Combined Heat and Power

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With the rapid increase in need of electricity, electric power system is becoming complex day by day. Different types of generating units and loads are connected with one another to form a huge generating, transmitting and distributing network. Pakistan is being confronted with acute shortage of electric power and measures need to be taken on short terms to tackle these problems. In Distributed generation, DG can be utilized efficiently in such cases due to the reason that DG can be on site generation with less time of installation and generating electricity. However, integrating a DG unit with a distribution system causes some disparities if some issues like proper sizing, capacity and location are not taken into consideration. Theses disparities can be related to voltage profile, stability, power losses, harmonics etc. which can cause damage to different electrical devices and units. Particularly, this research work covers the adverse effects on voltage profile when a DG unit is being integrated with the distribution system without taking its size, capacity and location into consideration together with the methods for alleviating these effects. A 132 kv residential feeder has been taken as a test case. Which is further modeled in Electrical Transient Analyzer Program ETAP. Various tests are taken into consideration to analyze the effects of DG on distribution system. Different cases are being analyzed taking system with and without DG unit installed at different busbars. It has been observed that significant improvement in voltage profile occurred when DG is inserted in system with proper consideration of size location and capacity.This research work can help expanding power system in future and tackling different issues related to voltage profile in distribution sector worldwide and particularly in Pakistan.

  1. Muhammad Salman,, Department of Electrical Engineering, University of Engineering and Technology Peshawar, Pakistan.
  2. Amjadullah Khattak,, Department of Electrical Engineering, University of Engineering and Technology Peshawar, Pakistan.
  3. Mushtaq Ahmad Khan Khattak,, Department of Electrical Engineering, University of Engineering and Technology Peshawar, Pakistan.
  4. Waqar Hussain,, Department of Electrical Engineering, University of Engineering and Technology Peshawar, Pakistan.

Muhammad Salman Amjadullah Khattak Mushtaq Ahmad khan khattak Waqar Hussain “Effects of Dispersed Generation on Voltage Profile and Power Losses” International Journal of Engineering Works Vol. 8 Issue 01 PP. 18-30 January 2021

[1] Digambar M Tagare. Electricity power generation: the changing dimensions, volume 56. John Wiley & Sons, 2011.

[2] Ashish Shrestha, Bibhu Bikram Shah, Bidur Raj Gautam, Shailendra Kumar Jha, “Framework Development to Analyze the Distribution System for Upper Karnali Hydropower Project Affected Area”, International Journal of Modern Engineering Research, vol. 7, no. 4, pp. 82-91, 2017. 

[3] Olukayade A. Afolabi, Warsame H. Ali, Penrose Cofie, John Fuller, Pamela Obiomon, Emmanuel S. Kolawole, “Analysis of the Load Flow Problem in Power System Planning Studies”, Energy and Power Engineering, vol. 7, pp. 509-523, 2015.

[4] Khin Thu Zar Win, Hla Myo Tun, “Design and Implementation of SCADA System Based Power Distribution for Primary Substation (Control System)”, Int. Journal of Electronics and Computer Science Engineering, vol. 3, no. 3, pp. 254-261, 2014.

[5] “Renewable global status 2018 report”, Renewable energy policy network for the 21st                                          century (REN21),(Available on line at [6] World Bank, “Access to electricity of population”, [Online]. Available: [Accessed: 23-Aug-2015].

[6] Kim JC, Cho SM, Shin HS. Advanced power distribution system configuration for smart grid, in IEEE trans. Smart Grid. 2013.

[7] H. Yang, D. Yi, J. Zhao, F. Luo and Z. Dong, “Distributed Optimal Dispatch of Virtual Power Plant Based on Elm Transformation”, Journal of Industrial and Management Optimization, Vol. 10, No. 4, 2014.

[8] M. Tahmasebi and J. Pasupuleti, “Self-Scheduling of Wind Power Generation with Direct Load Control Demand Response as a Virtual Power Plant”, Indian Journal of Science and Technology, Vol 6(11), 2013.

[9] V. Robu, R. Kota, G. Chalkiadakis, A. Rogers, N.R. Jennings, “Cooperative Virtual Power Plant Formation Using Scoring Rules”, Proceedings of the 11th International Conference on Autonomous Agents and Multiagent Systems (AAMAS), Vol. 3, 2012, p. 1165-1166.

[10] J.A. Barbosa, R.P.S. Leao, C.F.P. Lima, M.C. O. Rego and F.L.M. Antunes, “Decentralised Energy Management System to Virtual Power Plants”, International Conference on Renewable Energies and Power Quality (ICREPQ10), 2010.

[11]  J.B. Eisen, “Distributed Energy Resources, Virtual Power Plants, and the Smart Grid”, Environmental & Energy Law & Policy Journal, Vol. 7, No. 2, 2012.

[12]  C. S. Ioakimidis, K. N. Genikomsakis, A. Aragonés, A. Escuredo and F. Sanchez, “Design of a Virtual Power Plant in the presence of microrenewables and electric vehicles in a microgrid concept for realtime simulation as part of a Remote Lab”, Renewable Energy and Power Quality Journal (RE&PQJ), No.11, 2013.

[13]  a. Nikonowicz, J. Milewski, “Virtual Power Plants – general review: structure, application and optimization”, Journal of Power Technologies 92 (3) (2012), p. 135–149.