电池应用的感应电机驱动效率优化控制

M. Bierhoff
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引用次数: 2

摘要

现代磁场定向控制感应电机驱动器在高功率密度和可耗尽原材料的经济利用之间取得了很好的折衷。由于对于此类驱动器,励磁是由定子电流的一部分磁化电流以及产生转矩的部分产生的,因此定子电流产生有两个自由度,以实现一定的转矩。对于高集成度驱动来说,最大效率是将逆变器发热降至最低的必要条件,因此产生了最小定子电流大小与转矩比的条件。下面的文章包括一种有效的感应电机定子电流控制的分析方法。考虑到饱和互感的影响,精心设计了磁化电流与转矩的特性曲线,以确保逆变器上的热应力最小,从而使感应电机伺服驱动器设计紧凑,特别是用于电池应用。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Efficiency optimized control of induction machine drives for battery applications
Contemporary field oriented controlled induction machine drives constitute a good compromise between high power density and economical employment of exhaustible raw materials. Since for such drives the excitation is created by the magnetizing current which is part of the stator current along with the torque generating fraction, there are two degrees of freedom in the stator current generation to achieve a certain amount of torque. As for high integrated drives maximum efficiency is essential to reduce inverter heating to a minimum there arises the condition of a minimal stator current magnitude to torque ratio. The following article comprises a recipe for an analytical approach to an efficient induction machine stator current control. Influences of a saturated mutual inductance are taken into account to elaborate characteristic curves of magnetizing current versus torque to ensure minimal thermal stress on the inverter and thus compact design for induction machine servo drives especially applied for battery applications.
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