A Practical Iron Loss Calculation for AC Filter Inductors Used in PWM Inverters
A Practical Iron Loss Calculation for AC Filter Inductors Used in PWM Inverters
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DOI：
10.1109/tie.2009.2018436
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发表时间：
2009-04
影响因子：
7.7
通讯作者：
Toshihisa Shimizu;S. Iyasu
中科院分区：
文献类型：
--
作者：
Toshihisa Shimizu;S. Iyasu
提出了一种基于铁损图的PWM逆变器交流滤波电感铁损计算方法。铁损图，作者以前报道，是通过测量B-H平面上的动态小回路创建的，这是用于计算电感铁损的直流斩波电路。然而，在PWM逆变器中使用的AC滤波电感器的情况下，铁损图不能直接应用于铁损计算。本文对损耗图法进行了扩展，提出了一种计算交流滤波电感铁损的方法。我们描述的原则的扩展和实际的计算过程中，它利用了损耗图和传统的电路模拟器。对PWM逆变器几种典型调制方式下交流滤波电感的铁损进行了计算，并讨论了调制方式与铁损的关系。使用500 W逆变器装置的实验结果验证了计算结果。针对每种调制方法，测量了PWM逆变器的电感损耗和转换效率。
A novel iron loss calculation method is proposed based on an iron loss map for an AC filter inductor used in a pulsewidth-modulation (PWM) inverter. The iron loss map, previously reported by the authors, is created by measuring the dynamic minor loop on the B-H plane, and this is used for the calculation of inductor iron loss in the dc chopper circuit. However, in the case of an AC filter inductor used in a PWM inverter, the iron loss map cannot be directory applied to the iron loss calculation. In this paper, an iron loss calculation for an ac filter inductor is presented by expanding the loss map method. We describe the principle of expansion and the practical procedure for the calculation, which utilizes the loss map and a conventional circuit simulator. Iron loss for the ac filter inductor under some typical modulation methods of the PWM inverter are calculated and discussed with regard to the relation between the modulation methods and iron loss. The calculated results are verified using experimental results from a 500-W inverter setup. The inductor loss and conversion efficiency of the PWM inverter are measured for each modulation method.