Impedance Measurement of Grid-Tied Inverter With Deviate-Frequency Harmonic Current Injection

被引：0
|
作者：
Zhong, Peijun [1 ]
Sun, Jianjun [1 ]
Li, Qionglin [2 ]
Wang, Yi [2 ]
Zha, Xiaoming [1 ]
机构：
[1] Wuhan Univ, Sch Elect Engn & Automat, Wuhan, Peoples R China
[2] State Grid Henan Elect Power Co, Elect Power Res Inst, Zhengzhou, Peoples R China
来源：
2019 IEEE 4TH INTERNATIONAL FUTURE ENERGY ELECTRONICS CONFERENCE (IFEEC) | 2019年
关键词：
Grid-tied inverter; Impedance modeling; Deviate-frequency harmonic current injection (DFHCI); Impedance measurement; STABILITY;
D O I：
暂无
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
The output impedance of the grid-tied inverter is an important parameter to determine the stability of its operation. In this paper, the influence of inverter modulation and dead zone phenomena on impedance measurement is analyzed, and an impedance measurement method based on deviate-frequency harmonic current injection is proposed. Simulation results are provided to demonstrate the feasibility and the performance, and the results show that the new method can accurately measure impedance amplitude and angle of inverter in broadband frequency.
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页数：5
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