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基于铁损分析仪的三相PWM逆变器交流滤波电感铁损评估

Evaluation of Iron Loss of AC Filter Inductor Used in Three-Phase PWM Inverters Based on an Iron Loss Analyzer

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中文摘要

本文提出了两种评估PWM逆变器交流滤波电感铁损的方法。第一种是损耗图谱法,无需实际PWM逆变器即可计算电感铁损;第二种是利用铁损分析仪(ILA)在实际运行工况下直接测量电感铁损,为优化逆变器效率提供了精确的评估手段。

English Abstract

The authors have proposed two methods for iron loss evaluation of the ac filter inductor used in a pulsewidth modulation (PWM) inverter. The first method is a loss map method, which can be used for the iron loss calculation of the ac filter inductor without using a real PWM inverter, and the second method is an iron loss analyzer (ILA), which can measure the iron loss of the ac filter inductor dur...
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SunView 深度解读

该研究直接服务于阳光电源组串式及集中式光伏逆变器、储能PCS的核心部件优化。交流滤波电感是影响逆变器效率和温升的关键无源元件。通过引入损耗图谱法和铁损分析仪,研发团队能更精准地评估不同磁性材料在高频PWM激励下的损耗特性,从而优化电感设计,提升整机效率。这对于提升阳光电源PowerTitan、PowerStack等储能系统及高性能组串式逆变器的功率密度、降低散热成本具有重要工程价值,建议在研发阶段引入该测试流程以优化磁性元器件选型。