Research of APF based on fuzzy-sliding mode variable structure control strategy

The nonlinear load, impact and power imbalances as a result of serious pollution of the characteristics with the grid. The traditional method of active filter control systems rely on accurate mathematical model and has poor robustness, It is difficult to obtain good control performance. A shunt three-phase active power filter based on fuzzy-sliding mode variable structure control. It is modulated converter to make the active filter has a more favorable effect of the dynamic compensation. A three-phase three-wire active filter system simulation model based on the above control strategies and modulation scheme is established in matlab. The results of simulation show the control method is feasible; it has good dynamic and static performance in this system.