Fig. 2
![Fig. 2](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2Fs41601-021-00223-w/MediaObjects/41601_2021_223_Fig2_HTML.png)
The small-signal model of the proposed FFSOGI-PLL, where Ï„ is the arbitrary time delay and \({\tau }_{p}=2/k{\omega }_{n}\) is the time constant of the SOGI block
The small-signal model of the proposed FFSOGI-PLL, where Ï„ is the arbitrary time delay and \({\tau }_{p}=2/k{\omega }_{n}\) is the time constant of the SOGI block