Small-Signal Model of a Decoupled Double Synchronous Reference Frame Current Controller

被引:10
作者
Bakhshizadeh, Mohammad Kazem [1 ]
Hjerrild, Jesper [1 ]
Kocewiak, Lukasz [1 ]
Hesselbaek, Bo [1 ]
Wang, Xiongfei [2 ]
Blaabjerg, Frede [2 ]
Bak, Claus Leth [2 ]
机构
[1] DONG Energy Wind Power AS, Elect Syst Anal, Fredericia, Denmark
[2] Aalborg Univ, Dept Energy Technol, Aalborg, Denmark
来源
2016 IEEE 17TH WORKSHOP ON CONTROL AND MODELING FOR POWER ELECTRONICS (COMPEL) | 2016年
关键词
Current control; Harmonic studies; Phase locked loop;
D O I
10.1109/COMPEL.2016.7556713
中图分类号
TP [自动化技术、计算机技术];
学科分类号
080201 [机械制造及其自动化];
摘要
The converter behavior in harmonic studies or harmonic stability analysis can be evaluated by its output impedance. In order to overcome the nonlinearities introduced by the PLL, linearized models around the operating point are typically used. However, in the case of an imbalance in the system the dq signals are not dc anymore, and therefore, linearization cannot be done. In this paper a Decoupled Double Synchronous Frame PLL is used to eliminate the oscillations in the dq frame signals. The small signal model of this PLL including an unbalanced current controller is presented in this paper.
引用
收藏
页数:6
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