Fig. 13From: Fractional-order PI based STATCOM and UPFC controller to diminish subsynchronous resonance Current and voltage injected by PI and FOPI based UPFC controllers during three-phase fault to mitigate the SSR. a Shunt current and series voltage injected by PI based UPFC controller and b Shunt current and series voltage injected by FOPI based UPFC controllerBack to article page