Abstract
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.
Keywords
Pulse-width modulationInverterVoltageElectronic engineeringComputer scienceModulation (music)DiodeTopology (electrical circuits)Control theory (sociology)EngineeringElectrical engineeringControl (management)Physics
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Publication Info
- Year
- 1999
- Type
- article
- Volume
- 35
- Issue
- 5
- Pages
- 1098-1107
- Citations
- 515
- Access
- Closed
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Cite This
Leon M. Tolbert,
T.G. Habetler
(1999).
Novel multilevel inverter carrier-based PWM method.
IEEE Transactions on Industry Applications
, 35
(5)
, 1098-1107.
https://doi.org/10.1109/28.793371
Identifiers
- DOI
- 10.1109/28.793371