Active damping method for voltage source inverter-based distributed generator using multivariable finite-control-set model predictive control

Despite its advantages, the LCL filter can significantly distort grid current and constitute a substantially more complex control issue for grid-connected distributed generators (DGs). This paper presents an active damping approach to deal with filter's oscillation finite-control-set model predictive (FCS-MPC)-three-phase voltage source inverters (VSIs)-based DG. The new approaches use multivariable of inverter side's capacitor suppress resonance. proposed method has been tested in steady-state under disturbances. comparative study was also conducted existing virtual resistance FCS-MPC algorithm. validates developed schemes' superior performance shows ability eliminate lower-order harmonics decrease sensitivity distortion.