| 基于对称优化的SVPWM双闭环逆变器 |
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| 引用本文： | 宋琪,王仲初,于洋,李东伦,包讯泽.基于对称优化的SVPWM双闭环逆变器[J].辽宁科技大学学报,2013,36(5):473-478. |
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| 作者姓名： | 宋琪 王仲初 于洋 李东伦 包讯泽 |
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| 作者单位： | 辽宁科技大学电子与信息工程学院,辽宁鞍山,114051;国家电网鞍山供电公司,辽宁鞍山,114001 |
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| 摘 要： | 为了使逆变器输出电压为谐波含量很小的正弦波,并获得较高的直流母线电压利用率,在控制策略上选择了电压空间矢量脉宽调制（SVPWM）,并利用空间矢量对称性对计算过程进行了简单优化.为了获得稳定的输出电压波形,本文应用了电压电流双闭环控制的PWM三相逆变器,输出电压和输出电流分别通过电压外环和电流内环实现稳定控制.这种控制方法有效改善了系统的抗干扰能力和动态响应.MATLAB的仿真结果证明了该控制方法的正确性和高效性.
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| 关 键 词： | 三相逆变器 电压空间矢宽调制(SVPWM) 空间矢量对称性 电压电流双闭环控制 |
Double closed-loop inverter with SVPWM based on symmetry optimization |
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| SONG Qi,WANG Zhongchu,YU Yang,LI Donglun,BAO Xunze.Double closed-loop inverter with SVPWM based on symmetry optimization[J].Journal of University of Science and Technology Liaoning,2013,36(5):473-478. |
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| Authors: | SONG Qi WANG Zhongchu YU Yang LI Donglun BAO Xunze |
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| Institution: | 1.School of Electronic and Information Engineering, University of Science and Technology Liaoning, Anshan 114051, China; 2.Anshan Power Supbly ChinaStarc Ctrid 114001 ) |
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| Abstract: | In order to get the output voltage wave of inverter with less harmonic and higher utilization of DC bus voltage, the voltage space vector pulse width modulation （SVPWM） is selected as a control strategy and the symmetry of space vector is used to optimize the process of calculation. In order to obtain a stable wave- form of output voltage, the voltage and current dual-loop three-phase inverter controlled by PWM is adopted, the outputs of voltage and current are controlled through the outer voltage loop and the inner current loop sta- bly. This control method is effective to improve the anti-interference ability and dynamic response of the sys- tem. The MATLAB simulation results verify the correctness and efficiency of the control method. |
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| Keywords: | three-phase inverter voltage space vector pulse width modulation （SVPWM） space vector sym- metry voltage and current dual-loop control |
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