Sliding Mode Pulsewidth Modulation

This paper presents sliding mode pulsewidth modulation (SMPWM) control methodologies for a current-controlled inverter. Discussion begins with circuit analysis and the selection of proper references. Based on this formulation, switching methodologies are developed. Two novel approaches adopting the sliding mode concept are proposed to make the system tracking reference inputs. Phase currents and the neutral point voltage are controlled simultaneously. Optimization of different operational criteria is offered by SMPWM via the control of neutral point voltage. Simulations and experiments are carried out to confirm the effectiveness of proposed control algorithms.