无线并联逆变器比例分配功率研究  

Research on wireless oarallel-connected inverters with proportional allocation power

作　　者：刘斌[1,2] 陈舒龙 卢雄伟[1] 熊勇[1] 

机构地区：[1]南昌航空大学信息工程学院,江西南昌330063 [2]南昌杜迪电子技术有限公司,江西南昌330063

出　　处：《电子设计工程》2016年第9期93-96,100,共5页Electronic Design Engineering

基　　金：国家自然科学基金(61463037);江西省教育厅科技项目(GJJ14531)

摘　　要：不同功率等级的分布式电源需通过逆变器接口并入微电网,因此要求各逆变器按电源容量比例分配负荷功率。针对这一问题,本文采用动态分析法,通过引入虚拟电阻,围绕下垂控制原理,首先得出下垂系数对系统收敛性的影响,确定了它的收敛域。然后结合逆变电压幅值和频率的分析,推导出了稳态时逆变电压幅值相等与不等条件下无线并联逆变器按比例分配功率的充分条件。最后,搭建了两台不同容量的逆变器组成的微网平台,通过仿真和实验验证了以上理论分析的准确性。Different power levels of distributed power supply need to be incorporated into the micro grid through the inverter interface. Therefore, each inverter is required to distribute the load power according to the proportion of the power supply capacity. To solve this problem, this paper uses the dynamic analysis method, by introducing virtual resistance and centering on droop control principle, we obtaine the effect of droop factor on the convergence of the system and educe its convergence region. Combined with the analysis of the voltage amplitude and frequency, the sufficient condition for the distribution of power under different conditions is deduced. Finally, the paper builds the micro network platform of two different capacity inverters, the simulation and experiment results verify the accuracy of the theoretical analysis.

关 键 词：无线并联 虚拟电阻 下垂系数 电压幅值 功率分配 

分 类 号：TN01[电子电信—物理电子学]