Super Twisting Sliding Mode Direct Power Control of SAPF with Space Vector Modulation for Power Quality improvement

This study proposes a robust control strategy based super twisting-sliding mode direct power control. This latter has been applied at the two-level voltage Source inverter associated with a parallel active power filter (SAPF) withe space vector pulse width modulation (DPC SVM). This strategy to ensure the following objectives: obtain low total harmonic current, robustness, stabilization, reduce response time, ripple, and maintain fixed switching frequency. Finally, a comparison between traditional PI control and ST-SMC. The performance of the proposed control, all the simulation tests are in addition carried out with conventional PI control. The obtained results have shown an evident superiority of the super-twisting controllers against the PI one, regarding the current and dc voltage tracking, during the transient and the steady-state regimes. The model has been developed and the control strategy is validated under the environment (MATLAB/SIMULINK).