三相逆变器离网运行数学模型的研究与仿真

摘要

The shortage of energy makes the distributed generation systems draw more and more attention. While the distributed generation is inserted to power grid will affect the power quality. To solve the problem, micro-grid operation is proposed. Micro-grid operation falls into grid-connection model and gird- off model. The paper mainly analyzed the mathematical equations, designed the controller and made simulation model in MATLAB/SIMULINK in order to test the fesibility.%能源的短缺使得分布式发电备受关注。然而分布式电源接入电网会引起电能质量问题，微网形式的提出则可解决此问题，微网运行模式分为离网和并网两种模式。分析交流微电网离网运行模式下逆变器数学模型，合理设计其控制器，并在MATLAB/SIMULINK中搭建仿真模型，验证其可行性。