Synchronous motor control system
US4629958A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 17, 1984 |
| Grant date | Dec 16, 1986 |
| Priority date | — |
| Expiry date | Aug 17, 2004 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P25/024
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A synchronous motor control system includes a sensor (112) for sensing the rotational angle of a synchronous motor (101), and a control circuit (108) for generating a sinusoidal value corresponding to the rotational angle sensed by the sensor (112) and for multiplying the sinusoidal value by an effective value current command. The multiplied output of the control circuit (108) is applied as a current command value to the armature winding of the synchronous motor (101). In this case, the arrangement is such that the control circuit (108) compensates the sensed rotational angle by the actual velocity of the synchronous motor (101) or by a rotational command velocity for the synchronous motor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.