Torque angle control system for controlling the torque angle of a permanent magnet synchronous motor
US5006774A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 13, 1990 |
| Grant date | Apr 9, 1991 |
| Priority date | — |
| Expiry date | Mar 13, 2010 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P25/03
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A torque angle control system for maintaining a predetermined torque angle in a synchronous motor having a speed command conversion circuit (10) for converting a speed command signal to a synchronous motor control signal, correcting the synchronous motor control signal and generating a fundamental signal related to the corrected synchronous motor control signal, position sensors (26) for sensing the rotational position of a rotor of the synchronous motor (20) and a comparator (30) for comparing the fundamental signal to a rotor position signal and outputting a correction signal to the speed command conversion circuit (10) for correcting the synchronous motor control signal to maintain a predetermined torque angle in the synchronous motor (20).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.