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首页> 外文期刊>IEEE Transactions on Energy Conversion >Maximum Reachable Torque, Power and Speed for Five-Phase SPM Machine With Low Armature Reaction
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Maximum Reachable Torque, Power and Speed for Five-Phase SPM Machine With Low Armature Reaction

机译：低电枢反作用的五相SPM电机的最大可到达扭矩，功率和速度

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摘要

In this paper, the study of the torque and power versus speed characteristics for a family of five-phase surface-mounted permanent magnet machine is carried out. With considering hypotheses [linear magnetic modeling, only first and third harmonic terms in the back electromotive force (EMF) and current spectrums], an optimization problem that aims to maximize the torque for given maximum peak voltage and root mean square (RMS) current is formulated: the optimal torque sharing among the two virtual machines (the two dq-axis subspaces) that represent the real five-phase machine is thus calculated for any mechanical speed. For an inverter and a dc voltage sized with only considering the first harmonic of back EMF and current, the problem is solved with changing the virtual machine back EMFs and inductances ratios. With the introduction of the maximum torque/speed point, maximum power/speed point, and maximum reachable speed, it can be shown that, if the inductance ratio is large enough for given Volt-Ampere rating, the machine can produce higher torque without reducing its speed range, thus meaning that the capability of the inverter to work is improved with the use of the third harmonic. This property is all the truer as the base armature reaction is large. A particular five-phase machine is sized and numerically analyzed to check this property.
机译：在本文中，对一系列五相表面安装永磁电机的转矩和功率与速度特性进行了研究。考虑假设[线性电磁建模，仅反电动势（EMF）和电流谱中的一次和三次谐波项]，针对给定最大峰值电压和均方根（RMS）电流，旨在使转矩最大化的优化问题是公式化：因此，对于任何机械速度，都可以计算出代表实际五相电机的两个虚拟机（两个dq轴子空间）之间的最佳转矩共享。对于仅考虑反向电动势和电流的一阶谐波的逆变器和直流电压，通过更改虚拟机反向电动势和电感比即可解决该问题。通过引入最大扭矩/速度点，最大功率/速度点和最大可达到的速度，可以表明，如果电感比足够大以提供给定的伏安额定值，则电机可以产生更高的扭矩而不会降低它的速度范围，因此意味着通过使用三次谐波可以提高逆变器的工作能力。由于基本电枢反应很大，因此该特性更为真实。确定特定的五相电机的尺寸并进行数值分析以检查此属性。

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