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多电平功率变换器的选择性谐波消除模型预测控制

Selective Harmonic Elimination Model Predictive Control for Multilevel Power Converters

语言:

中文摘要

本文提出了一种将有限控制集模型预测控制(FCS-MPC)与选择性谐波消除(SHE)调制策略相结合的控制方法,用于多电平功率变换器。该方法通过预设的SHE电压模式作为稳态参考,在保证系统电流跟踪性能的同时,有效优化了输出电压的谐波频谱。

English Abstract

In this study, a model predictive control (MPC) strategy that combines finite-control-set MPC with selective harmonic elimination (SHE) modulation pattern in its formulation is proposed to govern multilevel power converters. Based on a desired operating point for the system state (converter current reference), an associated predefined SHE voltage pattern is obtained as a required steady-state cont...
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SunView 深度解读

该技术对阳光电源的核心产品线具有重要价值。在大型组串式逆变器(如SG320HX)和集中式逆变器中,随着多电平拓扑的应用,谐波抑制是提升电能质量的关键。将MPC与SHE结合,既能利用MPC的快速动态响应能力,又能通过SHE优化低次谐波,从而减小输出滤波器体积,降低成本。建议研发团队在下一代高功率密度逆变器及PowerTitan储能变流器(PCS)的控制算法中引入该策略,以提升在弱电网环境下的并网稳定性和电能质量表现。