A New Neutral-Point-Clamped PWM Inverter
- 1 September 1981
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Industry Applications
- Vol. IA-17 (5), 518-523
- https://doi.org/10.1109/tia.1981.4503992
Abstract
A new neutral-point-clamped pulsewidth modulation (PWM) inverter composed of main switching devices which operate as switches for PWM and auxiliary switching devices to clamp the output terminal potential to the neutral point potential has been developed. This inverter output contains less harmonic content as compared with that of a conventional type. Two inverters are compared analytically and experimentally. In addition, a new PWM technique suitable for an ac drive system is applied to this inverter. The neutral-point-clamped PWM inverter adopting the new PWM technique shows an excellent drive system efficiency, including motor efficiency, and is appropriate for a wide-range variable-speed drive system.Keywords
This publication has 1 reference indexed in Scilit:
- Optimum PWM waveforms of a microprocessor controlled inverterPublished by Institute of Electrical and Electronics Engineers (IEEE) ,1978