Power Quality Comparative Analysis between UPF and SAPF  

作　　者：Nicolae Badea Alexandru Dusa Nicu Roman 

机构地区：[1]“Dunarea de Jos”University of Galati,Domneasca Street,No.47 Galati,Romania [2]Nicu Roman-Smar Tech Automation SRL,Str.Cristofor Columb,No.14 Galati,Romania

出　　处：《Journal of Energy and Power Engineering》2021年第4期117-127,共11页能源与动力工程（美国大卫英文）

摘　　要：This paper makes a technical analysis of the converter’s topologies that are conventionally employed in three-phase three-wire in increasing the power factor and harmonics eliminating,namely unit power factor(UPF)and shunt active power filter(SAPF)and highlights the improvement of energy quality in the supply network.The paper highlights that the mathematical model of the three-phase PWM rectifier in the dq coordinate system is similar for both configurations.The structure of the control schemes of the two topologies for increasing the energy quality is similar by transformation of three-phase stationary coordinate system(a,b,c),to synchronous rotating(d,q)coordinate system that synchronously rotates with the fundamental voltage of the grid.Theoretical analysis and simulation results show that the control in synchronous rotating coordinate system has high power factor and low THDi for the both topologies.

关 键 词：Power quality unit power factor shunt active power filter energy efficiency. 

分 类 号：TN7[电子电信—电路与系统]