Active damping of resonance oscillations in LCL-filters based on virtual flux and virtual resistor
Active damping of resonance oscillations in LCL-filters based on virtual flux and virtual resistor
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DOI：
10.1109/epe.2007.4417734
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发表时间：
2007-09
期刊：
影响因子：
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通讯作者：
W. Gullvik;Lars Norum;Roy Nilsen
中科院分区：
文献类型：
--
作者：
W. Gullvik;Lars Norum;Roy Nilsen
本文提出了几种LCL滤波器谐振的有源阻尼方法。所有的方法都只使用电容器电压和电流的估计值来实现。本文中使用的无传感器控制策略是基于虚拟磁链的概念和所有的电压和电流的直流母线电压和转换器的输出电流是来自虚拟磁链的例外。所提出的理论，然后在实验室中进行了实验验证。
This paper presents several methods for active damping of resonance oscillations in LCL-filters. All the methods are implemented using only estimated values of the capacitor voltages and currents. The sensorless control strategy used in this paper is based on the virtual flux concept and all voltages and currents with the exception of the dc bus voltage and the converter output currents are derived from the virtual flux. The presented theory is then verified experimentally in the lab.