摘要
文章设计了应用于微电网的储能双模式逆变器系统,该系统利用三相逆变器SVPWM算法实现了对双模式逆变器并网运行的有效控制,利用与并网模式有相同电流内环的独立运行控制方法,对逆变器独立运行时电压幅值和频率控制,基于前馈控制的无缝切换控制方法,对电网状态检测方法以及防冲击的切换方法进行试验,试验结果验证了文章所提出理论的正确性和可行性。
A set of energy storage dual-mode inverter system used in micro-grid is designed, and the system structure is described too. The grid-connected dual-mode inverter is effectively controlled by three-phase inverter SVPWM algorithm. A new stand-alone mode control method, which has the same inner current loop with grid-connected mode, achieves the control of amplitude and frequency of the inverter voltage in stand-alone mode. A seamless switching control method based on the feedforward control is introduced, and a detecting method of grid state has been described. Finally, the experimen- tal waveforms are analyzed,which indicates the correctness and feasibility of the method.
出处
《可再生能源》
CAS
北大核心
2013年第11期26-29,共4页
Renewable Energy Resources
基金
国家高技术研究发展计划("863"计划)项目(2011AA05A106)
中国科学院代格村百千瓦级分布式光伏系统研究与示范
关键词
微电网
双模式
无缝切换
矢量控制
并网模式
独立模式
micro-grid
dual-mode
seamless switching
vector control
grid-connect mode
stand-alone mode