| Application of Fuzzy Control in Direct Torque Control of an Induction Motor |
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| 作者姓名： | LIU Shu-xi WANG Ming-yu |
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| 作者单位： | College of Electrical Engineering, Chongqing University, Chongqing 400030, China |
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| 摘 要： | The key of motor control is to control motor's torque essentially.Direct torque control,which emerged after the field-oriented control,directly stresses the instantaneous torque control of induction machine,which avoids some problems existing in field-oriented control,thus,it gets more attention.In conventional direct torque control system,switch vector is selected directly by the errors of stator flux-linkage and torque,after introducing fuzzy logic,optimal selecting switch state is realized by various strategies by distinguishing the grade of the errors of stator flux-linkage and torque,the dynamic and steady state performances of induction motors are improved.This paper presents a design method of the fuzzy controller.Simulation results demonstrate that it is effective,the stator currents pulsation at start-up and the torque pulsation are decreased.
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| 关 键 词： | fuzzy control theory direct torque control induction motors |
| 收稿时间： | 2005/9/10 0:00:00 |
| 修稿时间： | 2005/9/10 0:00:00 |
Application of Fuzzy Control in Direct Torque Control of an Induction Motor |
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| LIU Shu-xi,WANG Ming-yu.Application of Fuzzy Control in Direct Torque Control of an Induction Motor[J].Storage & Process,2005(12):23-26. |
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| Authors: | LIU Shu-xi WANG Ming-yu |
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| Institution: | College of Electrical Engineering, Chongqing University, Chongqing 400030, China |
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| Abstract: | The key of motor control is to control motor's torque essentially.Direct torque control,which emerged after the field-oriented control,directly stresses the instantaneous torque control of induction machine,which avoids some problems existing in field-oriented control,thus,it gets more attention.In conventional direct torque control system,switch vector is selected directly by the errors of stator flux-linkage and torque,after introducing fuzzy logic,optimal selecting switch state is realized by various strategies by distinguishing the grade of the errors of stator flux-linkage and torque,the dynamic and steady state performances of induction motors are improved.This paper presents a design method of the fuzzy controller.Simulation results demonstrate that it is effective,the stator currents pulsation at start-up and the torque pulsation are decreased. |
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| Keywords: | fuzzy control theory direct torque control induction motors |
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