摘要
基于LCL滤波器,设计并实现了既可工作在并网模式﹑又可工作在独立供电模式的高性能通用单相逆变器,设计了两种模式下的比例谐振(PR)控制器,既消除了系统输出的稳态误差,又保证了系统良好的动态性能。在此基础上进行了逆变器并联技术的研究,基于CAN总线实现了输出同步及并联均流,给出了系统总体结构和具体实现。5kW的样机实验结果验证了理论分析和控制策略的有效性。
The design and implementation of high performance single-phase LCL-based utility-interactive inverter are presented in this paper,which can operate in both grid-connected and standalone modes.Proportional-resonant（PR）controller is designed in both modes,which can not only eliminate the output steady error,but also ensure good dynamic performance.Furthermore,parallel inverters are studied based on the designed PR controller,output synchronization and sharing the currents evenly among parallel inverters are implemented based on CAN bus communication,and the general structure of the system as well as the concrete implementation is proposed.The effectiveness of theoretical analysis and control strategy is verified by 5 kW prototype experiments.
出处
《电力系统保护与控制》
EI
CSCD
北大核心
2010年第20期110-114,120,共6页
Power System Protection and Control
