华东,程志江,李永东,谢永流,史瑞静,樊小朝.基于电感电流无差拍控制的三相并网逆变器[J].电测与仪表,2015,52(21):. YANG Yong,CHENG Zhijiang,LI Yongdong,XIE Yongliu,SHI Ruijing,FAN Xiaochao.Based on the inductance current dead-beat control for three-phase grid inverter[J].Electrical Measurement & Instrumentation,2015,52(21):.
基于电感电流无差拍控制的三相并网逆变器
Based on the inductance current dead-beat control for three-phase grid inverter
In view of power coupling problems of the traditional grid inverter current vector PI control, it needs complex decoupling control, and one of the difficult is to achieve grid inverter system with no steady state error control. In order to solve this problem, this paper takes the instantaneous power outer ring and the inner ring of the inductance current dead-beat control strategy, and derives the discrete mathematical model of three-phase grid inverter, reduces a lot of coordinate transformation, and the design of the grid inverter control system was simplified. With the results of Matlab simulation show that the change of grid current, the control strategy can still achieve grid inverter output active and reactive power decoupling, and grid inverter output current has a good dynamic tracking performances, the low of current harmonic content satisfies the requirement of grid.
