感应电机高阶终端滑模磁链观测器的研究

史宏宇; 冯勇

doi:10.3724/SP.J.1004.2012.00288

感应电机高阶终端滑模磁链观测器的研究

doi: 10.3724/SP.J.1004.2012.00288

史宏宇^,,
冯勇

1.
哈尔滨工业大学电气工程系哈尔滨 150001

详细信息

通讯作者:
史宏宇, 哈尔滨工业大学电气学院博士研究生. 主要研究方向为电机控制, 非线性控制. E-mail: shihysl@126.com

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出版历程
- 收稿日期: 2011-03-15
- 修回日期: 2011-10-24
- 刊出日期: 2012-02-20

High-order Terminal Sliding Mode Flux Observer for Induction Motors

SHI Hong-Yu^,,
FENG Yong

1.
Department of Electrical Engineering, Harbin Institute of Technology, Harbin 150001

摘要

摘要: 提出了基于高阶非奇异终端滑模的感应电机转子磁链观测方法,用于实现感应电机的按转子磁链定向控制. 设计了非奇异终端滑模面及观测器的控制策略,利用所设计的控制策略推导出电机转子磁链信息. 为了抑制常规滑模存在的抖振现象,设计了定子电流观测器的高阶滑模控制律,可将控制信号直接用于电机转子磁链的估计. 较常规滑模观测器,所提方法具有较高的观测精度,并对电机参数变化具有良好的鲁棒性.仿真结果验证了方法的有效性.
- 磁链观测器 /
- 非奇异终端滑模 /
- 高阶滑模 /
- 感应电机
Abstract: This paper proposes a rotor flux estimation method based on high-order sliding mode and non-singular terminal sliding mode for implementing the field orientation control of induction motors. A nonsingular terminal sliding mode and the control law of the observer are designed. The rotor flux of the motor is deduced using the designed control law. Meanwhile, the high-order sliding mode technique is adopted to eliminate the chattering phenomenon of the conventional sliding mode so that the control signal of the observer can be used directly for rotor flux estimation. Compared to conventional sliding mode observers, the proposed observer can estimate the system state with a higher precision. Further, it is insensitive to parameter variations. Simulation results validate the proposed method.
- Flux observer /
- non-singular terminal sliding mode /
- high-order sliding mode /
- induction motor

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参考文献(1)

[1]

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