一种新颖的V/f控制感应电机宽和精确的速度操作

2008 International Symposium on Power Electronics, Electrical Drives, Automation and Motion Pub Date : 2008-06-11 DOI:10.1109/SPEEDHAM.2008.4581121

M. Tsuji, Shuo Chen, S. Hamasaki, Xiao-Dan Zhao, E. Yamada

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引用次数: 40

摘要

V/f控制方法是感应电机转速控制方法之一。提出了一种自升压补偿定子阻抗电压降的方法和一种滑移频率补偿方法，以减小负载变化引起的速度误差。利用根轨迹分析了所提出的V/f控制系统的稳定性。通过实验系统给出了系统的稳态转矩-转速特性和瞬态响应。与恒V/f控制方法相比，该方法在不同转速和负载下的速度精度得到了提高。

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A novel V/f control of induction motors for wide and precise speed operation

The V/f control method is one of speed control methods for induction motors. We have proposed an auto-boost voltage method to compensate the voltage drop of stator impedance and a slip frequency compensation method to decrease the speed error caused by the change of load. Stability of the proposed V/f control system is analyzed by root locus. Steady-state torque-speed characteristics and transient responses of proposed system are presented by experimental system. Compared with the constant V/f control method, speed accuracy of proposed method is improved in various speeds and loads.

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来源期刊

2008 International Symposium on Power Electronics, Electrical Drives, Automation and Motion

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