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首页> 外文期刊>Industry Applications, IEEE Transactions on >SPMSMs Sensorless Torque Estimation Using High-Frequency Signal Injection
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SPMSMs Sensorless Torque Estimation Using High-Frequency Signal Injection

机译：SPMSMS无传感器扭矩估计，使用高频信号注入

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摘要

Torque measurement/estimation in surface permanent magnet synchronous machines (SPMSMs) is needed in many applications. Torque measurement systems are expensive, require extra room, add weight, can introduce resonances into the system, and their performance can be compromised due to electromagnetic interference. Alternatively, torque can be estimated, accurate knowledge of machine parameters being critical in this case. Injection of a high-frequency (HF) signal in the stator via an inverter has been shown to be a viable option for online identification of machine parameters identification required by torque estimation methods for interior PMSMs. However, the reported methods require the use of two pulsating HF currents, which introduces concerns both on the adverse effects on machine's performance (additional noise, vibration, losses, etc.) as well as to the additional computational burden, as HF current controllers are required. This article proposes a torque estimation method for SPMSMs using a single HF signal; furthermore, a HF voltage signal can be used, avoiding the use of HF current controllers, and therefore simplifying the implementation.
机译：在许多应用中需要表面永磁同步机（SPMSMS）的扭矩测量/估计。扭矩测量系统昂贵，需要额外的房间，加重，可以将共振引入系统，并且它们的性能可能由于电磁干扰而受到损害。或者，可以估计扭矩，在这种情况下，对机器参数的准确知识是至关重要的。通过逆变器注入定子中的高频（HF）信号被示出为可行的选择在线识别机器参数所需的机器参数识别，用于内部PMSMS的扭矩估计方法。然而，报告的方法需要使用两个脉动的HF电流，这引入了对机器性能的不利影响（额外噪声，振动，损失等）以及额外的计算负担，因此介绍了对额外的计算负担的担忧，因为HF电流控制器是必需的。本文提出了一种使用单个HF信号的SPMSMS的扭矩估计方法;此外，可以使用HF电压信号，避免使用HF电流控制器，从而简化实现。

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