| 三相电压型PWM整流的新型直接功率控制 |
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| 引用本文： | 周永鹏,赵金程.三相电压型PWM整流的新型直接功率控制[J].电气传动,2011,41(3):38-40,45. |
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| 作者姓名： | 周永鹏 赵金程 |
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| 作者单位： | 华中科技大学,控制科学与工程系,图像信息处理与智能控制教育部重点实验室 |
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| 摘 要： | 介绍了三相电压型PWM整流器的数学模型,以及传统直接功率控制的基本原理和系统组成,分析了其所采用的开关表存在的不足。提出了一种新的直接功率控制方法,该方法采用新的开关表,功率内环采用简单的PI算法,省去两滞环比较器,易于实现。系统在Simulink下的仿真结果表明,与传统直接功率控制相比,该方法可以得到更高的功率因数、更低的输出直流纹波系数。
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| 关 键 词： | 直接功率控制(DPC) PWM整流 开关表 谐波 |
Novel DPC Based 3-phase Voltage Source PWM Rectifier |
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| ZHOU Yong-peng,ZHAO Jin-cheng.Novel DPC Based 3-phase Voltage Source PWM Rectifier[J].Electric Drive,2011,41(3):38-40,45. |
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| Authors: | ZHOU Yong-peng ZHAO Jin-cheng |
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| Affiliation: | ZHOU Yong-peng,ZHAO Jin-cheng(Image Processing and Intelligent Control Key Laboratory of Education Ministry of China,Dept.ofControl Sci & Eng.,Huazhong Univ.of Sci.& Tech.,Wuhan 430074,Hubei,China) |
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| Abstract: | The model of 3-phase voltage source PWM rectifier and the principle of classical direct power control system were presented.Then,the shortage of the switch table that used in the classical DPC system was figured out.Afterwards,a novel DPC strategy with novel switch table was proposed.In the proposed method,the simple PI control is used in the inner loop,instead of the hysteresis comparators that used in the classical DPC.The simulation results under Simulink show that,compared with the classical DPC,the pro... |
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| Keywords: | direct power control(DPC) PWM rectifier switch table harmonic |
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