Enhancing Service Restoration in Tanzanian Power Grid using Internet of Things Sensors and Renewable Energy Sources

Rukia J. Mwifunyi, Daudi C. Mnyanghwalo, Shamte J. Kawambwa
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Abstract

The increased dependence on the electric power grid, coupled with the increasing number of new customers, motivates the need to improve the reliability and resilience of the electric distribution systems. Modern distribution systems are becoming more resilient against power outages due to the increasing integration of Distributed Energy Resources (DERs) and the availability of efficient mechanisms for load shedding. Several studies considered fault detection and Service Restoration (SR) as separate problems without considering the implementation feasibility of integrating both solutions. To ensure the resiliency in the power system, it is important to have proper mechanisms which integrate sensing, detection, and SR as one problem while considering the load shedding and DER for improved capacity. Hence, this study proposed an IoT-based-sensor network framework with an enhanced algorithm coupled with a Binary Bat metaheuristic algorithm for SR integrating sensing, detection, and restoration. The proposed algorithms have been tested in Tanzania's electrical distribution network, considering the inclusion of DERs and load shedding. The results showed that DERs' size and locations significantly impact restoration schemes' performance with a power loss reduction of 74%. Therefore, efficient SR schemes should consider optimal DERs placement and a combination of load shedding and DERs integration for improved performance.
利用物联网传感器和可再生能源加强坦桑尼亚电网的服务恢复
对电网的依赖日益增加,加上新客户数量的增加,促使人们需要提高配电系统的可靠性和弹性。由于分布式能源(DERs)的日益集成和高效减载机制的可用性,现代配电系统对停电的抵御能力越来越强。一些研究将故障检测和服务恢复(SR)视为单独的问题,而没有考虑集成这两个解决方案的实现可行性。为了确保电力系统的弹性,在考虑减载和DER以提高容量的同时,重要的是建立适当的机制,将传感、检测和SR集成为一个问题。因此,本研究提出了一种基于物联网的传感器网络框架,该框架采用了一种增强算法,并结合了Binary Bat元启发式算法,用于SR的感知、检测和恢复。提出的算法已经在坦桑尼亚的配电网络中进行了测试,考虑了DERs和减载。结果表明,der的大小和位置显著影响恢复方案的性能,使功率损失降低74%。因此,有效的SR方案应该考虑最佳的der放置以及负载减少和der集成的组合,以提高性能。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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