The electricity distribution network in Ethiopia has the radial nature of network configuration. The interruption of power is due to overloading and failure of distribution lines due to external forces, like trees, animals, and wind. The failure of the radial distribution network brings blackout in the whole power system network as there is no alternative electricity supply. The renewable energy potential of Bahir Dar, Ethiopia, especially solar power is abundant and needs a mechanism to give a response for electricity demand in the country and city other than expecting from the national grid. The solar photovoltaic system interconnection in radial feeders may bring a solution for power interruption and network performance. The sizing and siting of the solar photovoltaic system in the Ethiopian radial distribution system required an optimization tool to obtain better distribution network parameter. The power loss minimization and voltage profile enhancement of the radial distribution network are the key objectives of this research. Selective particle swarm optimization (SPSO) is used to fix the size and site of installation for network capacity enhancement. A multiobjective optimization problem is formulated so as to meet different constraints to be optimized by the SPSO. Finally, the SPSO enables determining proper size and site of solar power installation and bringing better performance in the radial distribution network of Ethiopia.

中文翻译：

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基于选择性粒子群算法的并网太阳能光伏系统优化设计

埃塞俄比亚的配电网络具有网络配置的放射状性质。电源中断是由于树木，动物和风等外力导致配电线路过载和故障造成的。径向配电网的故障使整个电力系统网络停电，因为没有替代电力供应。埃塞俄比亚巴希尔达尔的可再生能源潜力，尤其是太阳能的潜力十分丰富，除了国家电网的期望之外，还需要一种机制来对国家和城市的电力需求做出回应。径向馈线中的太阳能光伏系统互连可以带来电源中断和网络性能的解决方案。埃塞俄比亚径向配电系统中太阳能光伏系统的大小和选址需要使用优化工具来获得更好的配电网络参数。径向配电网的功率损耗最小化和电压分布增强是本研究的主要目标。选择性粒子群优化（SPSO）用于固定安装的大小和站点，以增强网络容量。提出了一个多目标优化问题，以便满足SPSO要优化的不同约束。最后，SPSO可以确定合适的太阳能安装尺寸和地点，并在埃塞俄比亚的放射状配电网中带来更好的性能。径向配电网的功率损耗最小化和电压分布增强是本研究的主要目标。选择性粒子群优化（SPSO）用于固定安装的大小和站点，以增强网络容量。提出了一个多目标优化问题，以便满足SPSO要优化的不同约束。最后，SPSO可以确定合适的太阳能安装尺寸和地点，并在埃塞俄比亚的放射状配电网中带来更好的性能。径向配电网的功率损耗最小化和电压分布增强是本研究的主要目标。选择性粒子群优化（SPSO）用于固定安装的大小和站点，以增强网络容量。提出了一个多目标优化问题，以便满足SPSO要优化的不同约束。最后，SPSO可以确定合适的太阳能安装尺寸和地点，并在埃塞俄比亚的放射状配电网中带来更好的性能。