An Active Damper for Stabilizing Power-Electronics-Based AC Systems
An Active Damper for Stabilizing Power-Electronics-Based AC Systems
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DOI：
10.1109/tpel.2013.2278716
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发表时间：
2014-07
影响因子：
6.7
通讯作者：
Xiongfei Wang;F. Blaabjerg;Marco Liserre;Zhe Chen;Jinwei He;Y. Li
中科院分区：
文献类型：
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作者：
Xiongfei Wang;F. Blaabjerg;Marco Liserre;Zhe Chen;Jinwei He;Y. Li
通过电网阻抗耦合的并联并网变流器之间的相互作用往往会导致稳定性和电能质量问题。为了解决这些问题，本文提出了一种基于高带宽电力电子变换器的主动阻尼器。该提议背后的总体思想是动态地重塑从转换器的公共耦合点看到的电网阻抗分布，使得并联并网转换器中的潜在振荡和谐振传播可以被减轻。为了验证主动阻尼器的有效性，进行了基于三个转换器的设置上的仿真和实验测试。结果表明，主动阻尼器可以成为一种很有前途的电力电子交流电力系统稳定的方法。
The interactions among the parallel grid-connected converters coupled through the grid impedance tend to result in stability and power quality problems. To address them, this paper proposes an active damper based on a high bandwidth power electronics converter. The general idea behind this proposal is to dynamically reshape the grid impedance profile seen from the point of common coupling of the converters, such that the potential oscillations and resonance propagation in the parallel grid-connected converters can be mitigated. To validate the effectiveness of the active damper, simulations and experimental tests on a three-converter-based setup are carried out. The results show that the active damper can become a promising way to stabilize the power-electronics-based ac power systems.