Circuit Analysis of Goerges Phenomenon in a Three-Phase Induction Machine
Circuit Analysis of Goerges Phenomenon in a Three-Phase Induction Machine
复制标题
三相感应电机Goerges现象的电路分析
DOI：
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发表时间：
2022
期刊：
影响因子：
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通讯作者：
Lingling Fan
中科院分区：
文献类型：
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作者：
R. Kar;Zhixin Miao;Lingling Fan
转子阻抗不平衡可能导致感应电动机以同步速度的一半运行。这种现象是汉斯·戈尔斯在1896年发现的。Garbarino和Gross在1950年的一篇论文中给出了这种不平衡系统的等效电路。通过硬件实验验证了电路分析结果。当前的论文是对Garbarino和Gross的优雅分析的致敬。我们给出了一个详细的解释，如何利用对称分量理论逐步推导等效电路，以及对机器的理解。我们还提出了1950年论文中没有提出的转矩计算方程。为了验证，我们依靠电磁瞬变（EMT）仿真，设计实验，生成时域数据，进行快速傅里叶变换（FFT）分析进行谐波分析，并生成转矩-转速曲线来验证分析结果。
Unbalanced rotor impedance may lead to an induction motor operating at half of synchronous speed. This phenomenon was discovered by Hans Goerges in 1896. A 1950 paper by Garbarino and Gross gives an equivalent circuit for this unbalanced system. The circuit analysis results were validated by hardware experiments. The current paper is a tribute to Garbarino and Gross for the elegant analysis. We give a detailed explanation on how the equivalent circuit can be derived step by step using symmetric component theory along with an understanding of machines. We also present the torque computing equation which was not presented in the 1950 paper. For validation, we rely on electromagnetic transient (EMT) simulation, to design experiments, produce time-domain data, carry out fast Fourier transform (FFT) analysis for harmonic analysis, and produce torque-speed curves to verify the analysis results.