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首页> 外文会议>2014 International Power Electronics Conference >A novel power loss calculation method for IGBTs in power converters via Chaotic SPWM control
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A novel power loss calculation method for IGBTs in power converters via Chaotic SPWM control

机译：一种基于混沌SPWM控制的功率变换器IGBT功率损耗的新计算方法

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摘要

Chaotic sinusoidal pulse width modulation (SPWM) has been proposed and applied into suppressing the electromagnetic interference (EMI) generated by power converters. However, the power loss of the power switches under chaotic SPWM control have not been mentioned and analyzed yet; the power loss is an very important factor, since it can partly decide the dynamic performance and reliability of power converters. Furthermore, the existing power loss calculation method is no longer suit for the situation with chaotic SPWM control. In this paper, a novel power loss calculation method is proposed, and tested by the IGBTs in an AC-DC converter under Chaotic SPWM control. According to the calculation results, different power loss of IGBTs under SPWM and chaotic SPWM control are observed and analyzed. Finally, the experimental results are given to prove the effectiveness of the power loss calculation method proposed in this paper.
机译：已经提出了混沌正弦脉冲宽度调制（SPWM），并将其应用于抑制功率转换器产生的电磁干扰（EMI）。然而，混沌SPWM控制下的功率开关的功率损耗尚未提及和分析。功率损耗是一个非常重要的因素，因为它可以部分决定功率转换器的动态性能和可靠性。此外，现有的功率损耗计算方法已不再适用于混沌SPWM控制的情况。本文提出了一种新的功率损耗计算方法，并在混沌SPWM控制下，在交直流变换器中的IGBT上进行了测试。根据计算结果，观察和分析了SPWM和混沌SPWM控制下IGBT的不同功率损耗。最后，通过实验结果证明了本文提出的功率损耗计算方法的有效性。

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