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This chapter discusses the main circuit parameter design and loss calculation methods for MMC. The content includes principles for determining the number of submodules in an arm, the relationship between the number of voltage levels and control frequency, method for determining the turns ratio of the link transformer, the relationship between capacitor voltage fluctuation factor and submodule capacitance value, methods for determining power device parameters of the submodule, methods for determining arm reactor parameters, methods for determining smoothing reactor parameters, and MMC valve loss calculation methods based on piecewise analytical formulas.

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Main Circuit Parameter Design and Loss Calculation of MMC

  • 章节

  • 发表日期：

    2025年

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  • Zheng Xu,
  • Huangqing Xiao,
  • Zheren Zhang

摘要

This chapter discusses the main circuit parameter design and loss calculation methods for MMC. The content includes principles for determining the number of submodules in an arm, the relationship between the number of voltage levels and control frequency, method for determining the turns ratio of the link transformer, the relationship between capacitor voltage fluctuation factor and submodule capacitance value, methods for determining power device parameters of the submodule, methods for determining arm reactor parameters, methods for determining smoothing reactor parameters, and MMC valve loss calculation methods based on piecewise analytical formulas.