coupling virtual flux observer 耦合虚拟磁链观测器
Virtual-Flux Oriented Control 虚拟磁链定向控制
Virtual- Flux-based Direct Power Control 的直接功率控制 ; 直接功率控制
virtual-flux 虚拟磁链
node virtual flux 结点虚流量
nodal virtual flux 结点虚流量
virtual flux observers 虚拟磁链观测器
Virtual flux orientation 虚拟磁链定向
grid virtual flux linkage 电网虚拟磁链
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3^ Regarding AC side of inverter as a virtual AC motor and basedon virtual flux and space vector modulation theory, we suggest directpower control based on virtual-flux without source voltage sensor. Simultaneity, we do some simulations.
3、将逆变器交流侧视为虚拟交流电机，在虚拟磁通和空间矢量调制的理论基础上，得到一种无需交流电压传感器的功率估汁算法，提出了基于虚拟磁通的无电压传感器的直接功率控制方法，并做了仿真研究。
参考来源 - 光伏并网系统逆变器接口装置的控制方法研究·2,447,543篇论文数据，部分数据来源于NoteExpress
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.
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。
The pair can then pass from virtual to real, leading to an outward flux of observable light and a corresponding decrease in the mass of the hole.
于是这对光子就会由虚转实，形成一股可观察到的向外光通量，而此时黑洞的质量也会相应下降。
However, there are initial problems in the observation of the virtual line-flux-linkage, similarly to the synchronous motors, should be solved.
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。
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