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。
2
Based on the synthesis theory concerning the mixed point straight-line four-bar linkagein the special condition, a research method with the circle center and circle point as parameters is proposed.