This paper presents the impact of optimal location and sizing of renewable and non-renewable-based distributed generators in the AC/DC micro-grid system using the latest optimizer called butterfly optimization algorithm with an aim to minimize power loss. Generally, hybrid AC/DC micro-grids systems are modeled by separating AC and DC feeders with the help of high-power converters (HPC).AC grids sustained by substation and DC grids are maintained by their individual DG units. While planning of DGs in the hybrid AC/DC systems, the power loss incurred by HPCs is not considered avoiding complexity by many authors. In this paper, the sizing of DGs is determined by the operational area required by the type of DG technology as one variable and all possible candidate buses in the respective zones of AC/DC micro-grid system are another variable with due consideration of HPC losses in AC/DC micro-grid system. A hybrid AC/DC MG system is developed by classifying the existing benchmark 33-bus and 69-bus radial distribution systems into various AC/DC zones. To evaluate the proposed approach, it is implemented on aforementioned micro-grid systems and the obtained results are verified with other existing approaches in the literature. The results proved that the proposed approach is better than the other approaches in technical aspects.

中文翻译：

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蝶形优化器辅助REDG单元基于最小操作区域在混合AC / DC配电微电网中的最优集成

本文介绍了使用最新的称为蝶形优化算法的优化器来优化交流/直流微电网系统中基于可再生能源和不可再生能源的分布式发电机的最佳位置和规模的影响，目的是最大程度地降低功率损耗。通常，混合式AC / DC微电网系统是通过在高功率转换器（HPC）的帮助下将AC和DC馈线分开来建模的，变电站和DC电网维持的AC电网由它们各自的DG单元维护。在混合AC / DC系统中规划DG时，许多作者并未考虑HPC所产生的功率损耗，这避免了复杂性。在本文中，DG的大小由DG技术类型所需的操作区域确定，作为一个变量，而AC / DC微电网系统各个区域中所有可能的候选母线都是另一个变量，同时要充分考虑AC / DC中的HPC损耗微电网系统。通过将现有的基准33总线和69总线径向配电系统分类为各个AC / DC区域，可以开发出混合式AC / DC MG系统。为了评估所提出的方法，在上述微电网系统上实施了该方法，并且所获得的结果与文献中的其他现有方法进行了验证。结果证明，所提出的方法在技术方面优于其他方法。通过将现有的基准33总线和69总线径向配电系统分类为各个AC / DC区域，可以开发出混合式AC / DC MG系统。为了评估所提出的方法，在上述微电网系统上实施了该方法，并且所获得的结果与文献中的其他现有方法进行了验证。结果证明，所提出的方法在技术方面优于其他方法。通过将现有的基准33总线和69总线径向配电系统分类为各个AC / DC区域，可以开发出混合式AC / DC MG系统。为了评估所提出的方法，在上述微电网系统上实施了该方法，并且所获得的结果与文献中的其他现有方法进行了验证。结果证明，所提出的方法在技术方面优于其他方法。