Virtual Complex Impedance Power Distribution Method for Micro-Source Inverter Based on Coordinate Transformation

被引：0
|
作者：
Zhang B. [1 ]
Li D. [1 ]
Yan X. [1 ]
Huang Y. [2 ]
Wang D. [1 ]
机构：
[1] Key Laboratory of Distributed Energy Storage and Micro-Grid of Hebei Province, North China Electric Power University, Baoding
[2] State Grid Hebei Electric Power Corporation, Shijiazhuang
来源：
Diangong Jishu Xuebao/Transactions of China Electrotechnical Society | 2019年 / 34卷
关键词：
Coordinate conversion; Parallel inverter; Power decoupling; Power distribution; Virtual complex impedance;
D O I：
10.19595/j.cnki.1000-6753.tces.L80278
中图分类号：
学科分类号：
摘要：
The impedance characteristics of the line in microgrid are closely related to the power decoupling control of micro sources inverter, circulation suppression, power quality and so on. Traditional virtual impedance control can easily cause voltage drop of common connection point, control robustness difference, and the deficiency of system instability caused by line resistance drift, a virtual complex impedance power sharing method for micro sources inverter based on coordinate transformation is proposed, the power output of parallel micro sources inverter is decoupled precisely and the equivalent line impedance is matched by virtual complex impedance control loop, the load power is effectively distributed according to the capacity ratio of the micro sources inverter. Simulation and experimental results verify the proposed method. © 2019, Electrical Technology Press Co. Ltd. All right reserved.
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页码：212 / 223
页数：11
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