Abstract Grid connected inverter’s output current waveform ought to be synchronized with the grid voltage, and must also meet with industrial standards. Nowadays, we have many control methods to do this with acceptable performance. Recently, a new proportional-resonant control method has been proposed. Running under stationary reference frame, it is able to regulate AC signals without static error. And harmonic compensation is quite simple using a PR controller. With its simplicity, PR control algorithm needs less calculation and can be widely used.
2013, Vol. 14 
