Analytical Analysis of Ac and Dc Side Harmonics of Three-level Active Neutral Point Clamped Inverter with Space Vector Modulation

2019 IEEE Applied Power Electronics Conference and Exposition (APEC) Pub Date : 2019-03-17 DOI:10.1109/APEC.2019.8721981

Ruirui Chen, Jiahao Niu, Handong Gui, Zheyu Zhang, Fred Wang, L. Tolbert, B. Blalock, D. Costinett, Benjamin B. Choi

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引用次数: 12

Abstract

This paper presents a comprehensive analytical analysis of the ac and dc side harmonics of the three-level active neutral point clamped (ANPC) inverter with space vector modulation (SVM) scheme. An analytical model to calculate the harmonics of a three-level converter with SVM is developed. The ac side output voltage harmonics and dc side current harmonics characteristics are calculated and analyzed. With the developed models, the impact of interleaving on both sides harmonics are studied which considers the modulation index, interleaving angle, and power factor. The analysis provides guideline for interleaving angle optimization to reduce the ac side power filter and dc side dc-link capacitor. The relationship between electromagnetic interference (EMI) filter corner frequency and switching frequency is also analytically derived which provides guideline for switching frequency and EMI filter design optimization. Two paralleled three-level ANPC inverters are constructed and experimental results are presented to verify the analytical analysis.

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空间矢量调制三电平有源中性点箝位逆变器交直流侧谐波分析

本文对采用空间矢量调制(SVM)方案的三电平有源中性点箝位(ANPC)逆变器的交流和直流侧谐波进行了全面分析。建立了用支持向量机计算三电平变换器谐波的解析模型。计算并分析了交流侧输出电压谐波和直流侧电流谐波特性。利用所建立的模型，考虑调制指数、交织角和功率因数，研究了交织对两侧谐波的影响。该分析为优化交错角以减小交流侧电源滤波器和直流侧直流电容提供了指导。分析了电磁干扰滤波器拐角频率与开关频率之间的关系，为开关频率和电磁干扰滤波器的优化设计提供了指导。构造了两台并联的三电平ANPC逆变器，并给出了实验结果来验证分析分析。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2019 IEEE Applied Power Electronics Conference and Exposition (APEC)

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