Cascaded model predictive control of voltage source inverter with active damped LCL filter

In this paper, a cascaded model predictive control algorithm is applied to a grid connected voltage source inverter with LCL filter. The cascaded approach allows the use of one switched and one linear model, hence simplifying the implementation of the model predictive control algorithms. By using a detailed model of the inverter, active damping is achieved without any additional active damping algorithms. The control algorithm is verified by simulations in an ideal case and a realistic case where computational delays are considered.