一种新型大功率交/交模块Y型多电平变换器及其控制策略

Bo Liu, Yongqing Meng, Senge Bai
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引用次数: 10

摘要

本文提出了一种适用于低频输配电应用的新型大功率直接交流/交流模块化多电平Y型变换器拓扑,称为Y- mmc。本文详细讨论了Y-MMC系统的拓扑结构和工作原理,推导了dq坐标系下Y-MMC系统的动态数学模型。详细讨论了相应的控制方案,包括内回路电流控制、外回路功率控制和支路间无功分配。计算机仿真结果验证了Y-MMC拓扑结构和控制方案的有效性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
A novel high-power AC/AC modular multilevel converter in Y configuration and its control strategy
A novel high-power direct AC/AC modular multilevel converter topology in Y configuration, which is called Y-MMC, suitable for low frequency power transmission and distribution applications is proposed in this paper. The detailed topology and operation principles are addressed in this paper and the dynamic mathematical model of the Y-MMC system in dq coordinates is deduced. Corresponding control scheme is thoroughly discussed, including the inner loop current control, the outer loop power control and the reactive power distribution among branches. The validity of the Y-MMC topology and the control scheme are verified by computer simulation results.
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