Space-Vector PWM Technique for Two-Phase Inverter-Fed Two-Phase Induction Motors

In this paper, the space-vector pulsewidth modulation (SVPWM) technique for two-phase inverters is proposed. The proposed SVPWM technique is applicable to the two-phase induction motor drives. The two-phase inverters using the proposed SVPWM technique can generate only four space voltage vectors, but cannot generate zero vectors. A reference voltage vector located in the square locus is realized by adjusting the four space vectors. The switching sequence for the proposed SVPWM technique is proposed in order to minimize the ripple content of the output current. Practical verification of theoretical predictions is presented to confirm the capabilities of the new technique.