Secondly, based on the analysis of the theory of direct power control, the conception of virtual flux is utilized in the grid-connected three-phase voltage source inverter to estimate the transient active and reactive power.
其次,在并网逆变器中引入虚拟磁链的概念,用于无交流电压传感器的瞬时功率计算。
参考来源 - 基于虚拟磁链直接功率控制的并网逆变器的研究·2,447,543篇论文数据，部分数据来源于NoteExpress
与同步电机磁链观测相似，虚拟电网磁链的观测也存在初始值的问题。
However, there are initial problems in the observation of the virtual line-flux-linkage, similarly to the synchronous motors, should be solved.
采用类似于交流电机磁链观测的方法来构造一个虚拟电网磁链，可以代替电网电压作为PWM整流器矢量控制中的定向矢量，达到省去交流侧电网电压传感器，降低PWM整流器成本的目的。
So a virtual line flux has been constructed to serve as the oriented vector instead of the line voltage vector to remove the AC voltage sensors and reduce the cost of PWM rectifiers.
准确观测虚拟电网磁链是PWM整流器虚拟电网磁链定向无电压传感器运行的关键。
The key problem of the virtual line-flux-linkage vector oriented control of the PWM rectifier without line voltage sensors is to observe the virtual line-flux-linkage accurately.
应用推荐