沈阳工业大学学报2017，Vol.39Issue(3)：248-252,5.DOI:10.7688/j.issn.1000-1646.2017.03.02
多并网逆变器耦合谐振特性
Coupling resonance characteristics of multiple grid-connected inverters
摘要
Abstract
In order to solve the complex coupled resonance problem for the parallel grid-connected system of grid-connected inverters with multiple LCL filters, the mathematical model for single inverter was established, which was extended to form the mathematical model for the multiple inverter parallel system.With considering the equivalent circuit model when the inverter itself, parallel inverter and grid separately functioned, a small signal equivalent simplified circuit of multiple inverter parallel system based on the superposition theorem was proposed.With the frequency domain analysis method, the coupling resonance characteristics of multi inverters in parallel were analyzed, which were compared with the resonance characteristics of single inverter.The results show that an additional resonance peak will occur in the multiple inverter parallel system, and the resonance peak value and frequency are related to the number of parallel inverters.关键词
LCL滤波/并联/耦合/谐振/数学模型/叠加定理/频域分析Key words
LCL filtering/parallel connection/coupling/resonance/mathematical model/superposition theorem/frequency domain analysis分类
信息技术与安全科学引用本文复制引用
朱小会,袁玉霞,张庆辉..多并网逆变器耦合谐振特性[J].沈阳工业大学学报,2017,39(3):248-252,5.基金项目
河南省科技攻关计划资助项目(152102210002). （152102210002）
