基于展开电路的Buck-Boost双向DC-AC变换器小信号模型

O. Matiushin, O. Husev, D. Vinnikov
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引用次数: 1

摘要

本文提出了一种基于展开电路的扭曲双向压升压逆变器比例谐振控制器参数的获取和计算方法。所得结果为研究选定的拓扑动力学提供了合适的理论指导。小信号模型的结果可以用来估计系统的稳定性。给出了基于PR控制器的并网逆变器的仿真结果。结果表明,没有任何补偿块的简单PR控制器是稳定的,但在实际实验中不能提供高精度的电网电流。
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Small Signal Model of the Buck-Boost Bidirectional DC-AC Converter Based on Unfolding Circuit
This document presents an approach for getting and calculation the parameters of Proportional- Resonant (PR) controller for the twisted-bidirectional buck-boost inverter based on unfolding circuit. The obtained results are suitable theoretical guidelines for an investigation of selected topology dynamic. The results of small signal model allow estimating the stability of the system. The simulation results of grid-connected inverter based on the PR controller are presented. As the result simple PR controller without any compensation block is stable, but can't provide high accuracy of the grid current in real experiment.
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