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利用不连续空间矢量调制降低双三相永磁同步电机驱动器直流母线纹波的动态交错策略

Dynamic Interleaving Strategy to Reduce DC-Link Ripple of Dual Three-Phase Permanent Magnet Synchronous Machine Drives by Using Discontinuous Space Vector Modulation

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中文摘要

本文提出了一种动态交错方法,旨在降低双三相永磁同步电机驱动系统的直流母线纹波。针对现有固定交错角方法在抑制纹波方面的局限性,该策略通过优化不连续空间矢量调制(DSVM)下的交错角,有效改善了直流侧电流重叠期间的纹波性能。

English Abstract

A dynamic interleaving method is proposed in this article to reduce the dc-link ripple for dual three-phase permanent synchronous machine drive systems. Existing literature covers the constant interleaving approach, where the interleaving angle is fixed, which is incapable of reducing the dc-link ripple significantly. During the overlapping condition of the dc-link currents of the two three-phase ...
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SunView 深度解读

该技术主要针对多相电机驱动系统,虽然阳光电源的核心业务聚焦于光伏逆变器和储能PCS,但其提出的“动态交错控制”与“直流母线纹波抑制”技术在电力电子领域具有通用性。对于阳光电源的组串式逆变器和储能变流器(PCS),在多模块并联或多重化拓扑设计中,类似的动态交错调制策略可用于优化直流侧电容的应力,减少纹波电流,从而提升功率密度并延长电容寿命。建议研发团队关注该调制算法在多电平或多重化并联拓扑中的应用潜力,以进一步优化系统效率与可靠性。