Energization control system for switched reluctance motor
US5796226A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 17, 1996 |
| Grant date | Aug 18, 1998 |
| Priority date | — |
| Expiry date | Sep 17, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P6/15
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A system which energizes an SR motor with a three phase sequential and time sharing energization. Coil of respective phase is energized in an interval from an energization ON angle to an energization OFF angle. The OFF angle is advanced in reverse proportion to a speed and a target torque of a rotor of the motor in a high speed range exceeding a threshold Rbase which is an upper limit of a speed range in which a high noises is generated by a tangential oscillation of the rotor. The OFF angle is advanced in proportion to the speed of the rotor and in reverse proportion to the target torque in a low speed range under the threshold Rbase. The advance prevents the generation of noises. The system includes a compensator which corrects an energization level for accommodating an actual acceleration to a target acceleration of the rotor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.