Phase advance angle optimization for brushless motor control
US7436139B2 · kind B2 · utility
31Cited by
11References
33Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 29, 2003 |
| Grant date | Oct 14, 2008 |
| Priority date | — |
| Expiry date | Jan 29, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P6/15
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A control system for a multiphase permanent magnet motor having a controller for producing a control signal to energize each phase winding. The controller includes a current value calculator for determining a value of phase current advanced in phase with respect to back-EMF by a phase advance angle, and a phase advance optimization circuit for producing a value of the phase advance angle optimized so as to maximize output torque of the motor and mimimize the phase current. The phase advance optimization circuit determines the phase advance angle optimized for each phase of the motor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.