基于PR控制的单相T源光伏发电系统的研究  

Research on the Single-Phase T Source Photovoltaic Generating System Based on PR Control

作　　者：朱红[1] 宋怀祥 

机构地区：[1]安徽理工大学电气与信息工程学院,安徽淮南232001 [2]六安市重点工程建设管理局,安徽六安237001

出　　处：《电测与仪表》2014年第14期38-40,共3页Electrical Measurement & Instrumentation

摘　　要：T源逆变器可以实现单级升压逆变,与Z源逆变器相比,T源逆变器的无源器件较少,无源器件的减少可提高系统的效率。并网逆变器电流通常采用PI控制,但是PI控制有两个缺点:无法跟踪没有稳态误差的正弦参考值,且有较差的扰动抑制能力。为此本文采用比例谐振控制(PR),并比较PI控制和PR控制的单相T源光伏并网系统的性能,并通过仿真和实验验证其正确性。The T source inverter can realize single-stage boosting contravariance and the T source inverter, compared with the Z source inverter, has fewer passive components, which can improve the efficiency of the system. The current of the grid-connected inverter usually adopts PI control, but PI control has two disadvantages： one is that it cannot track down the sinusoidal reference value with no steady-state error, and the other is that it has poor ability of disturbance attenuation. In view of this, the paper adopted proportional resonant （PR） control, compared the single-phase T source photovoltaic grid-connected system based on PI control with the system based on PR control, and finally verified the validity of PR control by simulation and experiments.

关 键 词：T源逆变器 PR控制器 单级升压逆变 

分 类 号：TM93[电气工程—电力电子与电力传动]