Novel multilevel inverter carrier-based PWM method
The advent of the transformerless multilevel inverter topology has brought forth various pulsewidth modulation (PWM) schemes as a means to control the switching of the active devices in each of the multiple voltage levels in the inverter. An analysis of how existing multilevel carrier-based PWM affects switch utilization for the different levels of a diode-clamped inverter is conducted. Two novel carrier-based multilevel PWM schemes are presented which help to optimize or balance the switch utilization in multilevel inverters. A 10-kW prototype six-level diode-clamped inverter has been built and controlled with the novel PWM strategies proposed in this paper to act as a voltage-source inverter for a motor drive.
- Research Organization:
- Oak Ridge National Lab., TN (US)
- Sponsoring Organization:
- US Department of Energy
- OSTI ID:
- 20082449
- Journal Information:
- IEEE Transactions on Industry Applications (Institute of Electrical and Electronics Engineers), Journal Name: IEEE Transactions on Industry Applications (Institute of Electrical and Electronics Engineers) Journal Issue: 5 Vol. 35; ISSN 0093-9994; ISSN ITIACR
- Country of Publication:
- United States
- Language:
- English
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