Direct time-domain-based approach for study of space-vector pulsewidth modulation

D irect time-domain-based approach, which is characterized by the simplicity and clarity, is proposed for the study and design of space-vector based methods of pulsewidth modulation (PWM) for standard voltage source inverters for adjustable speed motor drives. This approach is based on the detailed consideration of switching state sequences of three- phase inverter (with the corresponding duty-cycles), which are integrated characteristics of space vector PWM schemes and versions. It also permits providing of synchronization of output voltage waveforms and improvement of computational effectiveness of control algorithms.