摘要
针对无速度传感器异步电机矢量控制系统,提出一种改进的磁链观测与速度估计方法.采用定子磁场定向控制的某些思路应用到转子磁场定向控制中,综合电压模型与电流模型的优缺点并通过推导得出磁链观测与速度估计的算法,并对影响系统鲁棒性的易变参数进行补偿和校正,然后对采用的PI自适应参数进行整定,以达到更好的估算效果,最后运用MATLAB进行仿真来验证推导结果的正确性以及实用性.
According to the speed sensorless induction motor vector control system, this paper proposes an improved magnetic chain observation and speed estimation method. Certain ideas of stator magnetic field orientation control are applied to rotor field orientation control, and comprehensive voltage model and the advantages and disadvantages of current model are derived and through that magnetic chain observation and velocity estimation algorithm are obtained, and variable parameters of influencing the system robustness are compensated and corrected, Then the PI adaptive parameters setting, has reached a better estimate effect, and at last, the MATLAB simulation to verify the correctness and practicability of the result is derived.
出处
《沈阳化工大学学报》
CAS
2013年第1期74-77,共4页
Journal of Shenyang University of Chemical Technology
