| 基于矢量细分和占空比的模糊直接转矩控制 |
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| 引用本文： | 蔡斌军,孙耿丽.基于矢量细分和占空比的模糊直接转矩控制[J].湖南工程学院学报(自然科学版),2010,20(1). |
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| 作者姓名： | 蔡斌军 孙耿丽 |
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| 作者单位： | 1. 湖南工程学院,应用技术学院,湘潭,411101
2. 湖南工程学院,应用技术学院电气工程0783班,湘潭,411101 |
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| 基金项目： | 湖南省教育厅科研资助项目(09C261) |
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| 摘 要： | 传统的直接转矩控制方法,存在转矩脉动大和逆变器开关频率不固定的问题.因此,提出了一种采用矢量细分和占空比控制技术相结合的直接转矩控制方法.空间矢量脉冲调制(svpwm)实现矢量细分,模糊控制器确定有效矢量的占空比.仿真实验表明,该控制方法的输出转矩脉动小,开关频率固定.
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| 关 键 词： | 直接转矩控制 矢量细分 占空比 模糊控制 |
Fuzzy Direct Torque Control Strategy Based on Vectors Subdivision and Duty Ratio |
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| CAI Bin-jun,SUN Geng-li.Fuzzy Direct Torque Control Strategy Based on Vectors Subdivision and Duty Ratio[J].Journal of Hunan Institute of Engineering(Natural Science Edition),2010,20(1). |
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| Authors: | CAI Bin-jun SUN Geng-li |
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| Institution: | Techadogy Institute of Applied;Hunan Institute of Engineering;Xiangtan 411101;China |
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| Abstract: | The large torque ripples and no constant switching frequency of the inverter exist in conventional torque control(DTC).Therefore,a novel direct torque control strategy based on vectors subdivision and duty ratio control method is given.Space vector pulse width modulation method is applied to vectors subdivision and fuzzy control is applied to duty ratio of useful vectors.The simulation testing indicates this control method can get low torque ripples and constant switching frequency. |
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| Keywords: | direct torque control vectors subdivision duty ratio fuzzy control |
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