The input characteristic and stability analyse of inverter with induction motor

Shaobo Kang, Yao-hua Luo, J. You, Shijia Lv
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引用次数: 1

Abstract

The connection of an inverter-motor-drive system and a rectifier may lead to instability of the DC-link voltage. As the small signal technology is an important method to the cascaded system, the input impedance of the inverter-motor-drive system and its impact on the system stability are studied. Then the effect of the input impedance was analysis from d-axis rotor flux, load torque and DC-link voltage and some conclusions useful to improve the input impedance and make the cascaded system stable were obtained. Simulation results demonstrate the correctness of the theoretical analysis.
感应电机逆变器的输入特性及稳定性分析
逆变电机驱动系统与整流器的连接可能导致直流链路电压的不稳定。由于小信号技术是级联系统的一种重要方法,本文研究了逆变电机驱动系统的输入阻抗及其对系统稳定性的影响。然后从d轴转子磁链、负载转矩和直流链路电压三个方面分析了输入阻抗对级联系统的影响,得出了一些有助于改善输入阻抗,使级联系统稳定的结论。仿真结果验证了理论分析的正确性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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