Vector control systems for multiphase a.c. machines
US4780657A · kind A · utility
9Cited by
6References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 13, 1987 |
| Grant date | Oct 25, 1988 |
| Priority date | — |
| Expiry date | Feb 13, 2007 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P21/06
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A control system for an M-phase a.c. machine which measures the currents in at least (M-N) phases, where N=2 if M is even and N=1 if M is uneven, measures the instantaneous values of the voltages in (M-N) phases and obtains control signals for alteration of the input voltage and/or current to the motor to maintain the motor in an efficient running condition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.