Synthesis of a Cauer Equivalent Circuit for Electric Devices From Computed and Measured Data
Synthesis of a Cauer Equivalent Circuit for Electric Devices From Computed and Measured Data
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DOI：
10.1109/tpel.2020.3022167
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发表时间：
2021-04
影响因子：
6.7
通讯作者：
Yoshitsugu Otomo;H. Igarashi
中科院分区：
文献类型：
--
作者：
Yoshitsugu Otomo;H. Igarashi
本文提出了一种基于考尔电路的电子器件建模方法，其电路参数直接由测量或计算数据用伴随变量法确定。已经表明，由准静态麦克斯韦方程控制的电子器件可以由考尔电路来建模。从合成的考尔电路，涡流损耗可以评估一个很宽的频率范围。此外，它可以嵌入到电路仿真器中进行时域分析。结果表明，考尔电路的参数识别使用所提出的方法更好地为一个简单的数值模型比，其参数识别使用遗传算法。此外，一个电抗器和一个功率电感器的考尔等效电路合成的测量数据，使用所提出的方法。它示出的电抗器和功率电感器的输入阻抗是很好地近似的考尔电路在频域上的兴趣。
This article proposes a method for modeling electric devices based on a Cauer circuit whose circuit parameters are directly determined from measured or computed data using the adjoint variable method. It has been shown that electric devices that are governed by the quasi-static Maxwell's equation can be modeled by the Cauer circuit. From the synthesized Cauer circuit, eddy current losses can be evaluated for a wide frequency range. Moreover, it can be embedded into a circuit simulator to perform the time-domain analysis. It is shown that the Cauer circuit whose parameters are identified using the proposed method works better for a simple numerical model than that whose parameters are identified using a genetic algorithm. Moreover, the Cauer equivalent circuit of a reactor and a power inductor is synthesized from the measured data using the proposed method. It is shown that the input impedance of the reactor and power inductor is well approximated by the Cauer circuit over the frequency domain of interest.