XU Zheng;ZHANG Zheren;

• 1:College of Electrical Engineering
• 2:Zhejiang University

Abstract：

Low-frequency submarine cable power transmission technology has competitive advantage in offshore wind power transmission and offshore wind farm network construction, and the modular multilevel matrix converter(M~3C) is the core component of low-frequency power transmission technology. This paper focuses on the mathematical model and equivalent circuit of the M~3C. First, the development context of low-frequency power transmission technology is described. By considering the M~3C as an extension of the widely used modular multilevel converter(MMC), the paper introduces M~3C topology and variable naming rules which are similar to the MMC. On this basis, the mathematical model of the M~3C in the abc coordinate system is derived, and the mathematical model of M~3C is established in the αβ0 coordinate system. According to the mathematical equation of the M~3C in the αβ0 coordinate system, the corresponding equivalent circuit is derived.

Key Words： low-frequency transmission;M~3C;abc coordinate system;αβ0 coordinate system;mathematical model;equivalent circuit

Abstract:

Keywords:

Foundation:

Authors: XU Zheng;ZHANG Zheren;

DOI: 10.19585/j.zjdl.202110002

References：

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