Method and apparatus for sensorless operation of brushless permanent magnet motors
Abstract
A sensorless method and apparatus for providing commutation timing signals for a brushless permanent magnet motor extracts the third harmonic back-emf of a three-phase stator winding and independently cyclically integrates the positive and negative half-cycles thereof and compares the results to a reference level associated with a desired commutation angle. 23 figs.
- Inventors:
- Issue Date:
- Research Org.:
- Midwest Research Institute, Kansas City, MO (United States)
- Sponsoring Org.:
- USDOE, Washington, DC (United States)
- OSTI Identifier:
- 644392
- Patent Number(s):
- 5739652
- Application Number:
- PAN: 8-770,862
- Assignee:
- General Motors Corp., Detroit, MI (United States)
- DOE Contract Number:
- AC36-83CH10093
- Resource Type:
- Patent
- Resource Relation:
- Other Information: PBD: 14 Apr 1998
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; ELECTRIC MOTORS; PERMANENT MAGNETS; CONTROL THEORY; CONTROL SYSTEMS; SWITCHES; TIMING CIRCUITS
Citation Formats
Sriram, T V. Method and apparatus for sensorless operation of brushless permanent magnet motors. United States: N. p., 1998.
Web.
Sriram, T V. Method and apparatus for sensorless operation of brushless permanent magnet motors. United States.
Sriram, T V. Tue .
"Method and apparatus for sensorless operation of brushless permanent magnet motors". United States.
@article{osti_644392,
title = {Method and apparatus for sensorless operation of brushless permanent magnet motors},
author = {Sriram, T V},
abstractNote = {A sensorless method and apparatus for providing commutation timing signals for a brushless permanent magnet motor extracts the third harmonic back-emf of a three-phase stator winding and independently cyclically integrates the positive and negative half-cycles thereof and compares the results to a reference level associated with a desired commutation angle. 23 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1998},
month = {4}
}