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Content Provider | IEEE Xplore Digital Library |
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Author | Das, S. Narayanan, G. |
Copyright Year | 1982 |
Abstract | Analytical closed-form expressions for harmonic distortion factors corresponding to various pulsewidth modulation (PWM) techniques for a two-level inverter have been reported in the literature. This paper derives such analytical closed-form expressions, pertaining to centered space-vector PWM (CSVPWM) and eight different advanced bus-clamping PWM (ABCPWM) schemes, for a three-level neutral-point-clamped (NPC) inverter. These ABCPWM schemes switch each phase at twice the nominal switching frequency in certain intervals of the line cycle while clamping each phase to one of the dc terminals over certain other intervals. The harmonic spectra of the output voltages, corresponding to the eight ABCPWM schemes, are studied and compared experimentally with that of CSVPWM over the entire modulation range. The measured values of weighted total harmonic distortion (WTHD) of the line voltage VWTHD are used to validate the analytical closed-form expressions derived. The analytical expressions, pertaining to two of the ABCPWM methods, are also validated by measuring the total harmonic distortion (THD) in the line current ITHD on a 2.2-kW constant volts-per-hertz induction motor drive. |
Sponsorship | IEEE Industrial Electronics Society |
Starting Page | 4485 |
Ending Page | 4497 |
Page Count | 13 |
File Size | 978335 |
File Format | |
ISSN | 02780046 |
Volume Number | 61 |
Issue Number | 9 |
Language | English |
Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Publisher Date | 2014-01-01 |
Publisher Place | U.S.A. |
Access Restriction | One Nation One Subscription (ONOS) |
Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Subject Keyword | Vectors Inverters Pulse width modulation Closed-form solutions Stators Harmonic distortion voltage-source inverter Advanced bus-clamping pulsewidth modulation (ABCPWM) closed-form expression harmonic distortion multilevel inverter neutral-point-clamped (NPC) inverter pulsewidth-modulated inverter space-vector modulation switching sequence |
Content Type | Text |
Resource Type | Article |
Subject | Control and Systems Engineering Electrical and Electronic Engineering Computer Science Applications |
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