电网技术2016，Vol.40Issue(4)：1180-1189,10.DOI:10.13335/j.1000-3673.pst.2016.04.030
多逆变器并网耦合谐振机理及有源阻尼优化方法
Coupling Resonances Mechanism of Grid-Connected Multi-Parallel Inverters and Its Active Damping Parameter Optimal Method
摘要
Abstract
Due to lack of global view, analysis of series resonance and parallel resonances for grid-connected multi-parallel inverters with LCL filter fails to illustrate coupling resonance mechanism clearly and accurately. This causes difficulty in selecting optimal control parameter. To tackle the problem, a generalized model of grid-connected parallel inverters is built. The model can be used to explain coupling resonance for two kinds of typical control structures of grid-connected inverters. With this model, series and parallel resonances are explained qualitatively and quantitatively. Features of intrinsic resonance are explicitly analyzed. The most salient of this model is to choose optimal value of active damping parameter very conveniently. Finally, simulation and experiment are conducted to investigate correctness of conclusion for coupling resonance mechanism and to verify feasibility of optimal method of active damping parameter.关键词
多逆变器并网/一般性/本征谐振/耦合谐振/有源阻尼Key words
multi-parallel grid-connected inverters/generalization/intrinsic resonance/coupling resonance/active damping分类
信息技术与安全科学引用本文复制引用
匡慧敏,罗安,陈智勇,陈燕东,周乐明,李鸣慎..多逆变器并网耦合谐振机理及有源阻尼优化方法[J].电网技术,2016,40(4):1180-1189,10.基金项目
国家自然科学基金重点项目(51237003)；国家自然科学基金面上项目(51577056)；湖南省博士生科研创新项目(CX2015B084)。Project Supported by National Natural Science Foundation of China (51237003 （51237003）
51577056) （）
