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On state estimation in electric drives

机译:关于电驱动中的状态估计

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摘要

This paper deals with state estimation in electric drives. On one hand a nonlinear observer is designed, whereas on the other hand the speed state is estimated by using the dirty derivative from the position measured. The dirty derivative is an approximate version of the perfect derivative which introduces an estimation error few times analyzed in drive applications. For this reason, our proposal in this work consists in illustrating several aspects on the performance of the dirty derivator in presence of both model uncertainties and noisy measurements. To this end, a case study is introduced. The case study considers rotor speed estimation in a permanent magnet stepper motor, by assuming that rotor position and electrical variables are measured. In addition, this paper presents comments about the connection between dirty derivators and observers, and advantages and disadvantages of both techniques are also remarked.
机译:本文涉及电驱动中的状态估计。一方面,设计了一个非线性的观测器,另一方面,通过从测量位置使用脏导数来估算速度状态。脏导数是理想导数的近似版本,它引入了几次在驱动器应用中分析过的估计误差。因此,我们在这项工作中的建议包括在模型不确定性和噪声测量均存在的情况下说明脏导数的性能的几个方面。为此,介绍了一个案例研究。案例研究通过假设转子位置和电气变量被测量来考虑永磁步进电机的转子速度估计。此外,本文还提出了有关脏派生程序和观察者之间的联系的评论,并且还指出了这两种技术的优缺点。

著录项

  • 来源
    《Energy Conversion & Management》 |2010年第3期|600-605|共6页
  • 作者

    A.E. Leon; rnJ.A. Solsona;

  • 作者单位

    Instituto de lnvestigaciones en Ingenieria Electrica (IIIE) 'Alfredo Desages' (UNS-CONICET), Departamento de Ingenieria Electrica y de Computadoras, Universidad National del Sur (UNS), 1253 Alem Avenue, P.O. 8000, Bahia Blanco, Argentina;

    rnInstituto de lnvestigaciones en Ingenieria Electrica (IIIE) 'Alfredo Desages' (UNS-CONICET), Departamento de Ingenieria Electrica y de Computadoras, Universidad National del Sur (UNS), 1253 Alem Avenue, P.O. 8000, Bahia Blanco, Argentina;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    state estimation; electric drives; robustness; sensorless control; observers; dirty derivative;

    机译:状态估计电力驱动器;健壮性无传感器控制;观察员脏衍生品;

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