Global to push GA events into
skip to main content

Title: Methods, systems and apparatus for adjusting modulation index to improve linearity of phase voltage commands

Embodiments of the present invention relate to methods, systems and apparatus for controlling operation of a multi-phase machine in a motor drive system. The disclosed embodiments provide a mechanism for adjusting modulation index of voltage commands to improve linearity of the voltage commands.
Inventors:
; ;
Issue Date:
OSTI Identifier:
1346944
Assignee:
GM GLOBAL TECHNOLOGY OPERATIONS LLC NETL
Patent Number(s):
9,595,902
Application Number:
13/197,629
Contract Number:
FC26-07NT43123
Resource Relation:
Patent File Date: 2011 Aug 03
Research Org:
GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; 33 ADVANCED PROPULSION SYSTEMS

Other works cited in this record:

Kaura , et al. April 7, 1998 Method and apparatus for linearizing pulse width modulation by modifying command voltges
patent, April 1998

Brushless DC motor control method and apparatus for reduced commutation noise
patent, December 1999

Apparatus and method for saving session variables on the server side of an on-line data base management system
patent, September 2002

Motor drive apparatus having oscillation-reducing control function for output torque
patent, April 2007

Gearless wheel motor drive system
patent, August 2007

Cooling and handling of reaction torque for an axial flux motor
patent, February 2008

Method and apparatus for sensorless position control of a permanent magnet synchronous motor (PMSM) drive system
patent, April 2009

Method and system for controlling synchronous motor drive systems
patent, September 2009

Gearless wheel motor drive system
patent, September 2009

Vector control device of induction motor, vector control method of induction motor, and drive control device of induction motor
patent, January 2008

Vector controller for permanent-magnet synchronous electric motor
patent, June 2011

Apparatus for controlling torque of electric rotating machine
patent, July 2011

Motor control device and motor-driven power steering system using the same
patent, December 2011

Methods, systems and apparatus for controlling operation of two alternating current (AC) machines
patent, February 2012

Methods, systems and apparatus for controlling operation of two alternating current (AC) machines
patent, June 2012

Vector controlled motor drive system implementing pulse width modulated (PWM) waveforms
patent, August 2012

Methods, systems and apparatus for synchronous current regulation of a five-phase machine
patent, October 2012

Control apparatus for electric rotating machine
patent, October 2012

Methods, systems and apparatus for overmodulation of a five-phase machine
patent, December 2012

Control apparatus for electric rotating machine
patent, February 2013

Methods, systems and apparatus for adjusting duty cycle of pulse width modulated (PWM) waveforms
patent, May 2013

Similar records in DOepatents and OSTI.GOV collections: