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Design Issues and Estimation Errors Analysis of Back-EMF-Based Position and Speed Observer for SPM Synchronous Motors

机译:SPM同步电动机基于反电动势的位置和速度观测器的设计问题和估计误差分析

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摘要

A back-electromotive force-based sensorless technique for surface-mounted permanent magnet synchronous motor drives is considered in this paper. The model of the observer is developed in the Laplace domain and represents an original approach with respect to state-of-art proposals, normally employing a state-space representation. This allows a more intuitive but equivalent design of the observer's gains, based on the standard frequency response, as compared with eigenvalues analysis. Moreover steady-state errors are obtained from a theoretical point-of-view, including the effects of the most common nonidealities affecting the drive system and parameters sensitivity. Full simulation and experimental characterization of the sensorless drive is provided with reference to a general purpose industrial drive, i.e., both in transient and steady-state and in the most meaningful speed/torque operating conditions.
机译:本文考虑了一种基于反电动势的无传感器技术,用于表面安装永磁同步电动机驱动器。观察者的模型是在拉普拉斯域中开发的,代表了有关最新建议的原始方法,通常采用状态空间表示法。与特征值分析相比,基于标准频率响应,这可以使观察者的增益设计更加直观但等效。此外,从理论角度可以获得稳态误差,包括影响驱动系统和参数灵敏度的最常见非理想因素的影响。参照通用工业驱动器,即在瞬态和稳态以及最有意义的速度/转矩操作条件下,提供了无传感器驱动器的完整仿真和实验特性。

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