| SVPWM电压源逆变器供电异步电动机的动态仿真 |
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| 引用本文： | 张贻旭,谢卫,屈鲁,卢颖娟.SVPWM电压源逆变器供电异步电动机的动态仿真[J].通信电源技术,2012,29(4):38-41. |
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| 作者姓名： | 张贻旭 谢卫 屈鲁 卢颖娟 |
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| 作者单位： | 上海海事大学物流工程学院,上海,200135 |
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| 摘 要： | 建立了三相异步电动机在d-q坐标系下的动态数学模型,并介绍了控制异步电动机运行的两种控制技术:正弦波脉宽调制(SPWM)技术和空间电压矢量脉宽调制(SVPWM)技术。在Matlab/Simulink环境下,分别建立SPWM和SVPWM电压源型逆变器供电的三相异步电动机的动态仿真模型,比较分析了在这两种控制方式下的仿真结果。结果表明,较之SPWM控制方式,SVPWM的异步电动机变频调速系统启动快,转矩脉动小,定子电流谐波小,具有较好的动态性能和稳态性能。
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| 关 键 词： | 异步电动机 SPWM SVPWM 动态仿真 |
Dynamic Simulation of Induction Motor Fed by SVPWM Voltage Source Inverter |
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| Affiliation: | ZHANG Yi-xu,XIE Wei,QU Lu,LU Yin-juan(Logistics Eng.College,Shanghai Maritime Univ.,Shanghai 200135,China) |
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| Abstract: | The dynamic model of three-phase induction motor is established in the d-q coordinate.Sinusoidal pulse width modulation(SPWM) technique and space vector pulse width modulation(SVPWM) technique which used to control induction motor are introduced.Dynamic simulation model of three-phase induction motor fed by SPWM and SVPWM voltage source inverter are established respectively,and the simulation results under these two control techniques are comparatively analyzed.The simulation results demonstrate that SVPWM induction motor drive system can start faster,the torque ripple is smaller and the stator current harmonics is smaller compared with SPWM control.The system has good steady and dynamic performance. |
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| Keywords: | induction motor SPWM SVPWM dynamic simulation |
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