基于虚拟磁链延迟补偿算法的无电网电压传感器PWM整流器研究

At present, virtual flux voltage oriented control strategy is one of the widely used control strategies without grid voltage sensor. To solve the dc bias resulting from voltage vector integration in vector calculation of virtual flux and further avoid the steady-state error, a virtual flux observer with negative feedback resonant filter is presented in this paper based on virtual flux principle an...