| 电网不平衡条件下LCL-VSR控制策略研究 |
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| 引用本文： | 丁杰,张兴,刘芳.电网不平衡条件下LCL-VSR控制策略研究[J].电力电子技术,2011,45(4):85-88. |
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| 作者姓名： | 丁杰 张兴 刘芳 |
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| 作者单位： | 合肥工业大学电气学院; |
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| 摘 要： | 针对电网电压不平衡状态对LCL滤波的PWM整流器的控制策略进行了研究,将有源阻尼控制与不平衡控制进行结合.传统输出电流平衡控制中由于正序有功电流指令中含有2次谐波,使得输出电流中含有3次谐波,这里通过添加陷波器消除了此2次谐波;对功率平衡控制中的电流指令算法进行了简化,解决了传统的指令算法计算量较大不利于工程实现的问题...
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| 关 键 词： | 整流器 电网不平衡 不平衡控制 有源阻尼 |
Control Schemes for LCL-VSR Under Unbalanced Supply Voltage Conditons |
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| DING Jie,MANG Xing,LIU Fang.Control Schemes for LCL-VSR Under Unbalanced Supply Voltage Conditons[J].Power Electronics,2011,45(4):85-88. |
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| Authors: | DING Jie MANG Xing LIU Fang |
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| Affiliation: | DING Jie,ZHANG Xing,LIU Fang(Hefei University of Technology,HeFei 230000,China) |
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| Abstract: | This paper deals with the control scheme of voltage source PWM rectifier with an LCL filter under unbalanced supply voltage conditions.The LCL active damping control strategy and unbalanced contol strategy are combined.In the traditional output current balanced control scheme,third order harmonic appears in the output current because of the second order harmonic consistent in the output current's positive sequence active power command and the control scheme is improved by adding an notch filter to avoid the... |
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| Keywords: | rectifier unbalanced supply voltage unbalanced control strategy active damping |
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