I have seen that mostly in 3 phase inverter islanded mode, the voltage is taken as a reference, is there any possibility of taken a current id* a constant reference , provided to 2nd order SMC to maintain the output voltage ?
here voltage reference means inverter output voltages or grid voltages? secondly if inverter output voltages are as reference, how would you implement them for intial SVPWM based algorithm as input to controller?
Muhammad Waseem output voltage means (220Vac), usually I have seen in papers that 2 loops are usually considered, outer loop PI and inner SMC or some other non linear control.