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任意激励波形下的磁芯损耗精确测量

Accurate Magnetic Core Losses Measurement Under Arbitrary Excitation Waveforms

语言:

中文摘要

精确的磁芯损耗测量对磁性元件设计及高功率密度变换器的开发至关重要。本文提出了一种结合快速傅里叶变换(FFT)与部分抵消法的新型测量方案,有效消除了变压器磁芯损耗测量中的无功电压分量,实现了在任意激励波形下对磁芯损耗的精确测量。

English Abstract

Precise core loss measurements are essential for magnetic design and the development of efficient and high-power density converters. This letter introduces a novel approach, leveraging the fast Fourier transform, to couple with the already demonstrated partial cancellation concept adopted for transformer core loss measurements. The proposed method perfectly eliminates the reactive voltage of the t...
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SunView 深度解读

磁性元件是阳光电源光伏逆变器(如组串式、集中式)及储能系统(如PowerTitan、ST系列PCS)的核心部件。随着产品向高功率密度和高效率演进,磁芯损耗的精确建模与测量直接影响变压器和电感的温升控制及效率优化。该方法提出的任意波形测量技术,能够帮助研发团队在复杂PWM调制策略下更准确地评估磁性元件损耗,从而优化磁路设计,提升PowerTitan等大功率储能系统的转换效率,并降低散热设计冗余,进一步增强产品的市场竞争力。