基于单观测器误差信息融合的永磁电机无传感器复合控制策略

发布时间：2018-04-10 10:07

本文选题：内置式永磁同步电机　切入点：无位置传感器　出处：《中国电机工程学报》2017年20期

【摘要】：针对无位置传感器内置式永磁同步电机(interior permanent magnet synchronous machine,IPMSM)全速域运行,传统的基于转速或位置信息融合的复合控制方法运算复杂度高、实现较为困难的缺点,该文提出一种基于标幺化位置误差信息融合的单Luenberger位置观测器复合控制方法。低速(零速)域和中高速域分别采用方波电压注入法和反电动势模型法获得标幺化位置误差信号;过渡区域通过速度信息对标幺化位置误差信号进行加权融合,采用单Luenberger位置观测器实现转子位置、转速实时观测。该复合控制方法能够实现IPMSM无位置传感器控制全速域运行,有效降低运算复杂度和观测器设计难度,算法实现较为简单。最后,通过2.2k W IPMSM无位置传感器矢量控制系统验证了所提出复合控制方法的有效性和实用性。
[Abstract]:The traditional hybrid control method based on rotational speed or position information fusion is difficult to realize because of the high computational complexity of the traditional hybrid control method based on rotating speed or position information fusion for the position sensorless built-in permanent magnet synchronous motor (PMSM) running in the full speed domain.In this paper, a compound control method of single Luenberger position observer based on the fusion of standard and unitary position error information is proposed.The square wave voltage injection method and the back EMF model method are used to obtain the normalized position error signal in the low speed (zero speed) domain and the middle and high speed domain, respectively, and the transition region uses the velocity information to perform the weighted fusion of the standard unitary position error signal.A single Luenberger position observer is used to realize the real-time observation of rotor position and speed.This compound control method can realize the full speed operation of IPMSM sensorless control, reduce the computational complexity and the difficulty of observer design, and the algorithm is simple to implement.Finally, the effectiveness and practicability of the proposed compound control method are verified by a 2.2kW IPMSM sensorless vector control system.
【作者单位】：哈尔滨工业大学电气工程及自动化学院;
【基金】：国家自然科学基金项目(51522701,51377032) 台达环境与教育基金会电力电子科教发展计划(DREK2015002) 国家科技支撑计划项目(2014BAF08B05) 博士后创新人才支持计划~~
【分类号】：TM351

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