Methods, systems and apparatus for adjusting duty cycle of pulse width modulated (PWM) waveforms
Abstract
Embodiments of the present invention relate to methods, systems and apparatus for controlling operation of a multi-phase machine in a vector controlled motor drive system when the multi-phase machine operates in an overmodulation region. The disclosed embodiments provide a mechanism for adjusting a duty cycle of PWM waveforms so that the correct phase voltage command signals are applied at the angle transitions. This can reduce variations/errors in the phase voltage command signals applied to the multi-phase machine so that phase current may be properly regulated thus reducing current/torque oscillation, which can in turn improve machine efficiency and performance, as well as utilization of the DC voltage source.
- Inventors:
- Issue Date:
- Research Org.:
- National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1083973
- Patent Number(s):
- 8446117
- Application Number:
- 12/983,669
- Assignee:
- GM Global Technology Operations LLC (Detroit, MI)
- Patent Classifications (CPCs):
-
H - ELECTRICITY H02 - GENERATION H02P - CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS
- DOE Contract Number:
- FC26-07NT43123
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 42 ENGINEERING
Citation Formats
Gallegos-Lopez, Gabriel, Kinoshita, Michael H, Ransom, Ray M, and Perisic, Milun. Methods, systems and apparatus for adjusting duty cycle of pulse width modulated (PWM) waveforms. United States: N. p., 2013.
Web.
Gallegos-Lopez, Gabriel, Kinoshita, Michael H, Ransom, Ray M, & Perisic, Milun. Methods, systems and apparatus for adjusting duty cycle of pulse width modulated (PWM) waveforms. United States.
Gallegos-Lopez, Gabriel, Kinoshita, Michael H, Ransom, Ray M, and Perisic, Milun. Tue .
"Methods, systems and apparatus for adjusting duty cycle of pulse width modulated (PWM) waveforms". United States. https://www.osti.gov/servlets/purl/1083973.
@article{osti_1083973,
title = {Methods, systems and apparatus for adjusting duty cycle of pulse width modulated (PWM) waveforms},
author = {Gallegos-Lopez, Gabriel and Kinoshita, Michael H and Ransom, Ray M and Perisic, Milun},
abstractNote = {Embodiments of the present invention relate to methods, systems and apparatus for controlling operation of a multi-phase machine in a vector controlled motor drive system when the multi-phase machine operates in an overmodulation region. The disclosed embodiments provide a mechanism for adjusting a duty cycle of PWM waveforms so that the correct phase voltage command signals are applied at the angle transitions. This can reduce variations/errors in the phase voltage command signals applied to the multi-phase machine so that phase current may be properly regulated thus reducing current/torque oscillation, which can in turn improve machine efficiency and performance, as well as utilization of the DC voltage source.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue May 21 00:00:00 EDT 2013},
month = {Tue May 21 00:00:00 EDT 2013}
}
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