| 三维空间矢量在三相四线系统DSTATCOM中的应用 |
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| 引用本文： | 杨晓萍,钟彦儒,张艳肖. 三维空间矢量在三相四线系统DSTATCOM中的应用[J]. 西安理工大学学报, 2008, 24(4) |
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| 作者姓名： | 杨晓萍 钟彦儒 张艳肖 |
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| 作者单位： | 西安理工大学,陕西,710048 |
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| 摘 要： | 提出了一种三维空间矢量算法原理，并将其用于三相四线系统配电网静止无功发生器（DSTATCOM）中。选取直流侧中点引出式两电平三桥臂逆变器作为DSTATCOM的主电路，在a-b—c坐标下建立了三桥臂逆变器数学模型。分析了三维空间中电压矢量的分布，给出了三维空间矢量脉宽调制的实现方法和参考电压矢量的控制策略，并使用PSCAD／EMTDC对三相四线系统DSTATCOM在感性负载、非线性负载及负载突变等情况下进行了仿真，仿真结果表明，这一控制算法可以使DSTATCOM具有良好的无功补偿能力、抑制不平衡和谐波的特性。
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| 关 键 词： | 三相四线系统 DSTATCOM 不平衡补偿 3DSVM 两电平逆变器 |
A Three-Dimensional SVM Algorithm for DSTATCOM in Three-Phase Four-Wire System |
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| YANG Xiao-ping,ZHONG Yan-ru,ZHANG Yan-xiao. A Three-Dimensional SVM Algorithm for DSTATCOM in Three-Phase Four-Wire System[J]. Journal of Xi'an University of Technology, 2008, 24(4) |
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| Authors: | YANG Xiao-ping ZHONG Yan-ru ZHANG Yan-xiao |
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| Affiliation: | YANG Xiao-ping,ZHONG Yan-ru,ZHANG Yan-xiao(Faculty of Water Resources , Hydraulic Power,Xi'an University of Technology,Xi'an 710048,China) |
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| Abstract: | In this paper,a three-dimensional space vector modulation(3DSVM) algorithm principle is presented and the principle is applied to DSTATCOM in three-phase four-wire system.A two-level three-leg inverter is selected for DSTATCOM.The mathematical model in a-b-c is built.The space vectors' allocation in three-dimension system is analyzed,and the realization of 3DSVPWM and the control tactics of reference voltage vectors are suggested.The simulation model of the inverter is built up.The DSTATCOM simulation for i... |
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| Keywords: | DSTATCOM 3DSVPWM |
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