Impedance Modeling and Analysis of Grid-Connected Voltage-Source Converters
Impedance Modeling and Analysis of Grid-Connected Voltage-Source Converters
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DOI：
10.1109/tpel.2013.2262473
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发表时间：
2014-03
影响因子：
6.7
通讯作者：
M. Cespedes;Jian Sun
中科院分区：
文献类型：
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作者：
M. Cespedes;Jian Sun
本文提出了用于风能和太阳能系统稳定性分析的并网三相转换器的小信号阻抗建模。在所提出的方法中，转换器直接在相域中通过正序和负序阻抗进行建模。进一步证明两个序列子系统在大多数情况下是解耦的，并且可以相互独立地研究。所提出的模型通过实验测量进行了验证，并在系统测试台中演示了它们的应用。
This paper presents small-signal impedance modeling of grid-connected three-phase converters for wind and solar system stability analysis. In the proposed approach, a converter is modeled by a positive-sequence and a negative-sequence impedance directly in the phase domain. It is further demonstrated that the two sequence subsystems are decoupled under most conditions and can be studied independently from each other. The proposed models are verified by experimental measurements and their applications are demonstrated in a system testbed.