Method and apparatus for current rebalance in induction motor
US5565753A · kind A · utility
22Cited by
8References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 12, 1994 |
| Grant date | Oct 15, 1996 |
| Priority date | — |
| Expiry date | Apr 12, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P27/02
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method and apparatus to be used with a motor controller for determining if phase currents in a three phase AC motor are balanced. The phase angles between current zero crossing times for consecutive phase currents are compared to determine current balance and thyristor switches are employed to adjust phase angles and rebalance unbalanced currents.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.