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Reliability Enhancement of Electric Distribution Network Using Optimal Placement of Distributed Generation

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  • Sanaullah Ahmad

    (Department of Electrical Engineering, CECOS University of Information Technology and Emerging Sciences, Peshawar 25000, Pakistan)

  • Azzam ul Asar

    (Department of Electrical Engineering, CECOS University of Information Technology and Emerging Sciences, Peshawar 25000, Pakistan)

Abstract

As energy demand is increasing, power systems’ complexities are also increasing. With growing energy demand, new ways and techniques are formulated by researchers to increase the efficiency and reliability of power systems. A distribution system, which is one of the most important entities in a power system, contributes up to 90% of reliability problems. For a sustainable supply of power to customers, the distribution system reliability must be enhanced. Distributed generation (DG) is a new way to improve distribution system reliability by bringing generation nearer to the load centers. Artificial intelligence (AI) is an area in which much innovation and research is going on. Different scientific areas are utilizing AI techniques to enhance system performance and reliability. This work aims to apply DG as a distributed source in a distribution system to evaluate its impacts on reliability. The location of the DG is a design criteria problem that has a relevant effect on the reliability of the distribution system. As the distance of load centers from the feeder increases, outage durations also increase. The reliability was enhanced, as the SAIFI value was reduced by almost 40%, the SAIDI value by 25%, and the EENS value by 25% after injecting DG into the distribution network. The artificial neural network (ANN) technique was utilized to find the optimal location of the DG; the results were validated by installing DG at prescribed localities. The results showed that the injection of DG at proper locations enhances the reliability of a distribution system. The proposed approach was applied to thte Roy Billinton Test System (RBTS). The implementation of the ANN technique is a unique approach to the selection of a location for a DG unit, which confirms that applying this computational technique could decrease human errors that are associated with the hit and trial methods and could also decrease the computational complexities and computational time. This research can assist distribution companies in determining the reliability of an actual distribution system for planning and expansion purposes, as well as in injecting a DG at the most optimal location in order to enhance the distribution system reliability.

Suggested Citation

  • Sanaullah Ahmad & Azzam ul Asar, 2021. "Reliability Enhancement of Electric Distribution Network Using Optimal Placement of Distributed Generation," Sustainability, MDPI, vol. 13(20), pages 1-16, October.
    • Handle: RePEc:gam:jsusta:v:13:y:2021:i:20:p:11407-:d:657381
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    References listed on IDEAS

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    1. Tumiran & Lesnanto Multa Putranto & Roni Irnawan & Sarjiya & Adi Priyanto & Suroso Isnandar & Ira Savitri, 2021. "Transmission Expansion Planning for the Optimization of Renewable Energy Integration in the Sulawesi Electricity System," Sustainability, MDPI, vol. 13(18), pages 1-20, September.
    2. Ehsan, Ali & Yang, Qiang, 2018. "Optimal integration and planning of renewable distributed generation in the power distribution networks: A review of analytical techniques," Applied Energy, Elsevier, vol. 210(C), pages 44-59.
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    Cited by:

    1. Izhar Us Salam & Muhammad Yousif & Muhammad Numan & Kamran Zeb & Moatasim Billah, 2023. "Optimizing Distributed Generation Placement and Sizing in Distribution Systems: A Multi-Objective Analysis of Power Losses, Reliability, and Operational Constraints," Energies, MDPI, vol. 16(16), pages 1-28, August.

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