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中文摘要：
提出了一种基于模糊自适应控制的无轴承异步电动机的空间矢量调制的直接转矩控制策略。通过模糊控制算法得到磁链和转矩的控制电压分量,实现了两个电压矢量的实时调整,解决了采用传统PI控制器所带来的脉动较大的问题。并利用Matlab/simulink仿真软件,分别建立基于模糊自适应控制的空间矢量调制的直接转矩控制系统和双PI控制的空间矢量调制的直接转矩控制系统模型。仿真结果表明,改进后的算法可以更好地抑制转矩、磁链的脉动及转速超调,提高系统的动态性能。
英文摘要：
In order to improve conventional SVM-DTC system,flux and torque fuzzy adaptive controller are designed.With the fuzzy algorithm,it is easy to obtain the control voltage component of the flux and torque respectively.Two voltage vectors achieve real-time adjustment and solve the disturbance problems in torque loop and flux loop.The design process of the fuzzy adaptive controller is given.Use Matlab/Simulink to check the improved and traditional SVM-DTC method.The results show that the improved algorithms have a better performance in reducing the ripple of torque,flux and Rotor displacement when compared with the tradition DTC method.And it also improves the system dynamic performance.
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