Comparison of Different Capacitor Tuning Criteria in Air-Cored Resonant Induction Machines
Comparison of Different Capacitor Tuning Criteria in Air-Cored Resonant Induction Machines
复制标题
空芯谐振感应电机中不同电容器调谐标准的比较
DOI：
10.1109/ecce.2019.8913143
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发表时间：
2019
期刊：
影响因子：
--
通讯作者：
K. Mishima
中科院分区：
文献类型：
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作者：
Zhao Jin;M. Iacchetti;Alexander C. Smith;R. Deodhar;K. Mishima
空芯谐振式感应电机可能会提供一些有趣的特性，如减小惯性和方波调制运行的可能性。它们的运行对电容器的调谐非常敏感：利用等效电路方程，分析了定子和转子电容器调谐的不同判据。特别是，本文详细探讨了定子和转子电容同时调谐以与定子和转子自感谐振，以及定子电容器仅抵消电机输入电感而忽略电阻的情况下的电机性能，并与前文分析的两种可选调谐方案进行了比较：两种调谐方案都与漏感谐振，而定子电容器在没有转子电容器的情况下调谐以补偿整个定子终端电抗。最大效率、最大扭矩和相关转差值的解析表达式也作为机器参数的函数得到：这些表达式为设计优化提供了有价值的工具。
Air-cored Resonant induction machines may offer some interesting features such as reduced inertia and the possibility of operating with square-wave modulation. Their operation is very sensitive to the tuning of the capacitors: by using the equivalent circuit equations this paper analyses different criteria to tune the stator and rotor capacitors. In particular, the paper explores in detail the machine performance in the cases of both stator and rotor capacitors being tuned to resonate with the stator and rotor self-inductances, and stator capacitors only to cancel out the machine input inductance neglecting resistances, and compare these scenarios with two alternative tuning options analysed in a previous paper: both capacitors resonating with the leakage inductances, and stator capacitors tuned to compensate for the overall stator terminal reactance in the absence of rotor capacitors. Analytic expressions for the maximum efficiency and maximum torque and related slip values are also derived as functions of the machine parameters: these expressions provide a valuable tool for design optimisation.