An active damper for stabilizing power electronics-based AC systems
An active damper for stabilizing power electronics-based AC systems
复制标题
DOI：
10.1109/apec.2013.6520441
复制
发表时间：
2013-03
期刊：
影响因子：
--
通讯作者：
X. Wang;F. Blaabjerg;Marco Liserre;Z. Chen;J. He;Y. Li
中科院分区：
文献类型：
--
作者：
X. Wang;F. Blaabjerg;Marco Liserre;Z. Chen;J. He;Y. Li
通过电网阻抗耦合的并联并网转换器之间的相互作用往往导致许多稳定性和电能质量挑战。为了解决这些问题，本文提出了一种基于低功耗，高带宽的电源转换器的主动阻尼器的概念。该建议背后的基本思想是动态地调整从并网转换器的公共耦合点看的电网阻抗，使得可以有效地减轻潜在的不稳定性和谐振传播。对三台并联并网变流器进行了仿真和实验室测试。结果验证了主动阻尼器的稳定性能。
The mutual interactions between the parallel grid-connected converters coupled through the grid impedance tend to result in a number of stability and power quality challenges. To address them, this paper proposes an active damper concept based on a low-power, high-bandwidth power converter. The basic idea behind this proposal is to dynamically adjust the grid impedance seen from the point of common coupling of the grid-connected converters, such that the potential instabilities and resonance propagation can be effectively mitigated. Simulation and laboratory tests on three parallel grid-connected converters are carried out. The results validate the stabilizing performance of the active damper.