Title :
Interleaved SVPWM and DPWM for dual three-phase inverter-PMSM: An automotive application
Author :
Bhattacharya, Subhadeep ; Mascarella, Diego ; Joos, Geza
Author_Institution :
McGill Univ., Montreal, QC, Canada
Abstract :
This paper studies the dual three-phase inverter configuration for an electric vehicle drive feeding a dual three-phase permanent magnet synchronous machine. Employing interleaved SVPWM and DPWM modulation techniques with the proposed configuration, the input capacitor ripple current has been substantially reduced to 50-60 % compared to that of a conventional 2-level VSI. The optimal interleaving angles have been identified for capacitor ripple reduction considering both modulation indexes and power factors pertaining to the traction motor´s operating range. The dual three-phase inverter´s switching losses have been analyzed for two different DC-link voltages and output power levels and a 15-20% reduction in switching loss has been noted.
Keywords :
PWM invertors; electric vehicles; permanent magnet machines; power factor; synchronous machines; traction motor drives; DC-link voltage; DPWM modulation technique; automotive application; capacitor ripple reduction; dual phase inverter-PMSM; dual three-phase permanent magnet synchronous machine; electric vehicle drive; input capacitor ripple current; interleaved SVPWM modulation technique; modulation index; optimal interleaving angle; power factor; switching loss reduction; traction motor; Batteries; Capacitors; Harmonic analysis; Inverters; Reactive power; Space vector pulse width modulation;
Conference_Titel :
Transportation Electrification Conference and Expo (ITEC), 2014 IEEE
Conference_Location :
Dearborn, MI
DOI :
10.1109/ITEC.2014.6861785
