Modeling and Stability Analysis for Multiple Parallel Grid-Connected Inverters System

被引：0
|
作者：
Zou, Xiaoming [1 ]
Du, Xiong [1 ]
Wang, Guoning [1 ]
机构：
[1] Chongqing Univ, State Key Lab Power Transmiss Equipment & Syst Se, Chongqing 400044, Peoples R China
来源：
THIRTY-THIRD ANNUAL IEEE APPLIED POWER ELECTRONICS CONFERENCE AND EXPOSITION (APEC 2018) | 2018年
基金：
中国国家自然科学基金;
关键词：
Phase-Locked Loop; admittance coupling; multiple parallel inverters; RT-LAB experiment; POWER-GENERATION SYSTEMS; CONVERTERS; ELECTRONICS;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The Phase-Locked Loop (PLL) plays an important role in stability of three-phase grid-connected inverter system. However, the existing literature all neglect the influence of PLL when analyzing the stability of multiple parallel grid-connected inverters system. So this paper builds the model of the system and analyzes the system stability with considering the influence of PLL. Besides, this paper demonstrates that there exist admittance coupling among multiple parallel inverters. Thus, owing to the coupling effect, it can not obtain the multiple parallel grid connected inverters admittance by accumulating each inverter admittance in parallel directly. Modeling the inverter mutual coupling is presented in this paper. The correctness of the modeling approach and stability analysis are verified by experimental results with RT-LAB.
引用
收藏
页码：2431 / 2436
页数：6
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