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首页> 外文期刊>IEEE Transactions on Industrial Electronics >A Control Strategy for Star-Channel Modular Multilevel Converter in Variable-Speed Motor Drive Application
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A Control Strategy for Star-Channel Modular Multilevel Converter in Variable-Speed Motor Drive Application

机译:星通道模块化多电平变频器在变速电机驱动中的控制策略

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摘要

Recently, a star-channel modular multilevel converter (MMC) was proposed for zero/low-fundamental-frequency operation. However, it is companied by two potential issues in practices: the star-channel branch suffers from submodule capacitor voltage deviations and the entire-speed-range operation for motor drive is not confirmed. This paper investigates the control degrees of freedom, and proposes control algorithms for star-channel branch and main arms. These control algorithms cascaded with advanced motor controls form the overall control scheme for drive system. Simulation and experimental results show that the star-channel MMC along with the proposed algorithms successfully maintain the SM capacitor voltages, and achieves the variable speed operation from standstill to rated speed.
机译:最近,提出了一种星形通道模块化多电平转换器(MMC)用于零/低基频操作。但是,在实践中它伴随着两个潜在的问题:星型通道分支遭受子模块电容器电压偏差的影响,并且未确认电动机驱动的整个速度范围操作。本文研究了控制自由度,提出了星状通道分支和主臂的控制算法。这些与高级电动机控制级联的控制算法构成了驱动系统的整体控制方案。仿真和实验结果表明,星型通道MMC与所提出的算法一起成功地维持了SM电容器的电压,并实现了从静止到额定速度的变速运行。

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