| 基于空间矢量的PWM整流器直接功率控制 |
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| 引用本文： | 宋书中,单栋梁,马建伟,汪显博.基于空间矢量的PWM整流器直接功率控制[J].电源技术,2011,35(2). |
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| 作者姓名： | 宋书中 单栋梁 马建伟 汪显博 |
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| 作者单位： | 河南科技大学,电子信息工程学院,河南,洛阳,471000 |
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| 摘 要： | 为克服传统型直接功率控制开关频率不固定的缺点,提出了一种基于空间矢量调制的三相Boost型PWM整流器直接功率控制策略(DPC-SVM).虚拟磁链估计器代替电压传感器,运用瞬时功率理论,估算虚拟磁链来计算有功和无功功率,采用电压外环和功率内环的控制方式,并做了仿真研究.研究和分析表明,DPC-SVM的应用使系统具有结构和算法简单、动态响应快、高功率因数、开关频率固定和低谐波等特性.
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| 关 键 词： | PWM整流器 直接功率控制 虚拟磁链 空间矢量 |
Direct power control with constant switching frequency for PWM rectifier |
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| SONG Shu-zhong,SHAN Dong-liang,MA Jian-wei,WANG Xian-bo.Direct power control with constant switching frequency for PWM rectifier[J].Chinese Journal of Power Sources,2011,35(2). |
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| Authors: | SONG Shu-zhong SHAN Dong-liang MA Jian-wei WANG Xian-bo |
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| Affiliation: | SONG Shu-zhong,SHAN Dong-liang,MA Jian-wei,WANG Xian-bo(Electronic and Information Engineering College,He'nan University of Science and Technology,Luoyang Henan 471000,China) |
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| Abstract: | In order to overcome the unstable frequency of traditional direct power control switching,a novel and simple direct power control of three-phase pulse-width-modulated rectifiers using space-vector modulation(DPC-SVM) was introduced.The line voltage sensors were replaced by a virtual flux estimator.The instantaneous power theory was applied to calculate the active and reactive power by estimating the virtual flux,the voltage of outer and inner power control mode was adopted and a simulation study was done.Th... |
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| Keywords: | PWM rectifier direct power control virtual flux space vector |
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