Control device of AC motor
US4259628A · kind A · utility
14Cited by
4References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 15, 1978 |
| Grant date | Mar 31, 1981 |
| Priority date | — |
| Expiry date | Aug 15, 1998 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P21/22
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In a control device of an AC motor wherein a torque equivalent to that of a DC motor is created by controlling the instantaneous values of its stator current, or in a vector control device, signals from a position detector such as a resolver coupled to the AC motor are utilized to form stator current instruction signals and to provide rotation position feed-back signals and rotation speed feed-back signals for the AC motor, thereby to perform precise servo-control.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.