Three-phase induction motor control method
US4800327A · kind A · utility
16Cited by
5References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 15, 1986 |
| Grant date | Jan 24, 1989 |
| Priority date | — |
| Expiry date | Dec 15, 2006 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P21/00
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A three-phase induction motor control method according to the present invention subjects a three-phase induction motor to vector control by an output from an inverter which is supplied with a direct current obtained by conversion from an AC input. The method includes sensing a DC-converted voltage at a DC link section, varying a flux command in dependence upon the sensed DC voltage, and controlling the motor to obtain a constant output irrespective of a fluctuation in power supply voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.