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Modeling and Design of High Performance Converters for Optimal Utilization of Interconnected Renewable Energy Resources to Micro Grid with GOLRS Controller
International Journal of Control, Automation and Systems ( IF 3.2 ) Pub Date : 2020-10-21 , DOI: 10.1007/s12555-019-0498-2
Surendar Vadivel , Uthandipalayam Subramaniyam Ragupathy

This paper proposes a bidirectional Z-source dc-dc converter topology for the optimal utilization of renewable energy sources to the microgrid with the proposed control technique. Compared to the existing dc-dc converter circuits, they can reduce in-rush and harmonic current, provide larger range of output dc voltage and improve reliability. It can operate in voltage-fed and current-fed when the place of the source and load is exchanged each other, and it can be perform buck-boost function in these two conditions. Its power flow can be bidirectional. The bidirectional Z-source dc-dc converter is revealed with the consideration of enhanced converter efficiency, effective utilization of renewable energy sources and reduced switching losses. The proposed control technique is the combination of both the grasshopper optimization algorithm (GOA) and local random search (LRS) and hence it is known as GOLRS controller. Here, the searching behaviour of the GOA is enhanced by LRS with the help of two operators named as crossover and mutation. In the proposed technique, the GOLRS is used to generate the optimal gain dataset based on the minimum error objective function and select the exact gain parameter of the PI controller. Batteries are used as an energy source to balance out and allow the renewable power system units to continue running at a steady and stable output power. The proposed technique is executed in the MATLAB/Simulink working platform and compared with various existing techniques.

中文翻译:

使用 GOLRS 控制器优化利用互连可再生能源到微电网的高性能转换器的建模和设计

本文提出了一种双向 Z 源 dc-dc 转换器拓扑,用于通过所提出的控制技术将可再生能源最佳利用到微电网中。与现有的dc-dc转换器电路相比,它们可以减少浪涌电流和谐波电流,提供更大范围的输出直流电压并提高可靠性。当电源和负载的位置相互交换时,它可以在电压馈送和电流馈送中工作,并且在这两种情况下都可以执行升降压功能。它的功率流可以是双向的。双向 Z 源 dc-dc 转换器在考虑提高转换器效率、有效利用可再生能源和减少开关损耗的情况下被揭示。所提出的控制技术是蚱蜢优化算法 (GOA) 和局部随机搜索 (LRS) 的结合,因此被称为 GOLRS 控制器。在这里,在称为交叉和变异的两个算子的帮助下,LRS 增强了 GOA 的搜索行为。在所提出的技术中,GOLRS 用于基于最小误差目标函数生成最佳增益数据集,并选择 PI 控制器的精确增益参数。电池作为能源来平衡并允许可再生电力系统单元继续以稳定和稳定的输出功率运行。所提出的技术在 MATLAB/Simulink 工作平台上执行,并与各种现有技术进行比较。LRS 在两个名为交叉和变异的算子的帮助下增强了 GOA 的搜索行为。在所提出的技术中,GOLRS 用于基于最小误差目标函数生成最佳增益数据集,并选择 PI 控制器的精确增益参数。电池作为能源来平衡并允许可再生电力系统单元继续以稳定和稳定的输出功率运行。所提出的技术在 MATLAB/Simulink 工作平台上执行,并与各种现有技术进行比较。LRS 在两个名为交叉和变异的算子的帮助下增强了 GOA 的搜索行为。在所提出的技术中,GOLRS 用于基于最小误差目标函数生成最佳增益数据集,并选择 PI 控制器的精确增益参数。电池作为能源来平衡并允许可再生电力系统单元继续以稳定和稳定的输出功率运行。所提出的技术在 MATLAB/Simulink 工作平台上执行,并与各种现有技术进行比较。电池作为能源来平衡并允许可再生电力系统单元继续以稳定和稳定的输出功率运行。所提出的技术在 MATLAB/Simulink 工作平台上执行,并与各种现有技术进行比较。电池作为能源来平衡并允许可再生电力系统单元继续以稳定和稳定的输出功率运行。所提出的技术在 MATLAB/Simulink 工作平台上执行,并与各种现有技术进行比较。
更新日期:2020-10-21
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