Title :
A low-distortion multilevel pulse-width modulated inverter topology
Author :
Agelidis, Vassilios G.
Author_Institution :
Sch. of Electr. & Comput. Eng., Curtin Univ. of Technol., Perth, WA, Australia
Abstract :
A three-phase pulse-width modulated multilevel voltage-source inverter topology with optimised switching performance is proposed in this paper. Actual power converter switching frequency is reduced substantially while the “effective” harmonic frequency is centered around the carrier frequency and the maximum attainable amplitude of the fundamental component of the line-to-line voltage waveform is increased when compared with the conventional sinusoidal PWM. Low distortion multilevel output waveforms make the proposed strategy highly compatible with high-power variable speed AC motor drives. A detailed description of the topology and its associated PWM strategy is presented along with simulation and experimental results
Keywords :
DC-AC power convertors; PWM invertors; field effect transistor switches; harmonic distortion; power MOSFET; power field effect transistors; power semiconductor switches; power system harmonics; switching circuits; carrier frequency; distortion; effective harmonic frequency; experiments; line-to-line voltage waveform; optimised switching performance; simulation; switching frequency; three-phase PWM multilevel VSI; topology; Frequency conversion; Power system harmonics; Pulse inverters; Pulse modulation; Pulse width modulation; Pulse width modulation inverters; Switching converters; Switching frequency; Topology; Voltage;
Conference_Titel :
Industrial Electronics, 1995. ISIE '95., Proceedings of the IEEE International Symposium on
Conference_Location :
Athens
Print_ISBN :
0-7803-7369-3
DOI :
10.1109/ISIE.1995.496634
