Space-Vector-Based Hybrid Pulsewidth Modulation Techniques for Reduced Harmonic Distortion and Switching Loss

• Published in: IEEE transactions on power electronics Vol. 25; no. 3; pp. 760 - 774
• Main Authors: Di Zhao, Hari, V S S Pavan Kumar, Narayanan, Gopalaratnam, Ayyanar, Rajapandian
• Format: Journal Article
• Language: English
• Published: New York IEEE 01.03.2010; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Distortion; Electric currents; Electric power; Harmonic analysis; Harmonic distortion; induction motor drives; Inverters; Modulation; Motor drives; power conversion efficiency; Pulse duration modulation; Pulse inverters; Pulse modulation; Pulse width modulation; Pulse width modulation inverters; Pulsed power supplies; pulsewidth modulation (PWM); space vector; Space vector pulse width modulation; Switching; Switching loss; Switching sequences; Vector space; Voltage; voltage source inverter (VSI)
• ISSN: 0885-8993; 1941-0107
• DOI: 10.1109/TPEL.2009.2030200

Novel switching sequences can be employed in space-vector-based pulsewidth modulation (PWM) of voltage source inverters. Different switching sequences are evaluated and compared in terms of inverter switching loss. A hybrid PWM technique named minimum switching loss PWM is proposed, which reduces the inverter switching loss compared to conventional space vector PWM (CSVPWM) and discontinuous PWM techniques at a given average switching frequency. Further, four space-vector-based hybrid PWM techniques are proposed that reduce line current distortion as well as switching loss in motor drives, compared to CSVPWM. Theoretical and experimental results are presented.