三种不同PWM调制方式下变频器损耗分析

Proceedings of 2014 International Conference on Modelling, Identification & Control Pub Date : 2014-12-01 DOI:10.1109/ICMIC.2014.7020720

Dengshan Hou, Cungang Hu, Guoli Li, Fenfang Zhu

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引用次数: 1

摘要

根据调制方式的不同，SPWM调制有3种不同的调制方式。对于不同的SPWM调制方式，由于开关频率和电流谐波的区别，工频逆变器的损耗也不同。在分析SPWM调制的基础上，比较了逆变器桥的损耗。通过MATLAB仿真的建立，得到了变压器的谐波参数，并对变压器的损耗进行了分析。通过在500W工频逆变器上的实验，得到了3种SPWM调制方法的实际效率，并验证了相应的结论。

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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Analysis of frequency inverter loss under 3 different PWM modulation methods

According to different modulation methods, there are 3 different kinds of SPWM modulations. To different SPWM modulation methods, due to the distinction of switch frequency and current harmonic, power frequency inverter loss is also different. Based on the analysis of SPWM modulations, losses of an inverter bridge have been compared. Depend on the establishment of MATLAB simulations, harmonic parameters of transformer are obtained, and the transformer losses are analyzed. Through experiments on a 500W power frequency inverter, practical efficiency of 3 kinds of SPWM modulation methods is obtained, and corresponding conclusions are verified.

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Proceedings of 2014 International Conference on Modelling, Identification & Control

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