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An Islanded Microgrid with Novel Fault Tolerant Inverter

机译：一种具有新型故障耐逆变器的岛屿微电网

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摘要

A novel fault-tolerant inverter applied in this islanded microgrid is proposed in this paper. Firstly, the topology structure and the working principle of the microgrid with the fault-tolerant inverter are provided. The fault-tolerant inverter allows the switching devices of different bridge arms to be reconstructed, which improves the fault-tolerant space. A fault-tolerant pulse signal algorithm is proposed, combined with the droop three-loop control to form a control method for the fault-tolerant inverter. It is no need to switch the control algorithms between the normal operating mode and the fault-tolerant mode. The reliability of the system is improved. The circulating currents eliminating method between the two inverters when the fault-tolerant inverter is in fault state are analyzed. Finally, the validity of the topology and the control strategy of the system is verified by simulation.
机译：本文提出了一种在该岛状微电网中施加的一种新型容错逆变器。首先，提供了通过容错逆变器的微电网的拓扑结构和工作原理。容错逆变器允许重建不同桥臂的开关装置，从而改善了容错空间。提出了一种容错脉冲信号算法，结合下垂的三环控制，形成容错逆变器的控制方法。无需在正常操作模式和容错模式之间切换控制算法。改善了系统的可靠性。分析了在容错逆变器处于故障状态时，循环电流消除了两个逆变器之间的方法。最后，通过模拟验证了系统的拓扑和控制策略的有效性。

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