Starting an induction machine
US10819255B2 · kind B2 · utility
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2References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 2, 2019 |
| Grant date | Oct 27, 2020 |
| Priority date | — |
| Expiry date | Jan 2, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P21/34
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method for starting an induction machine without residual flux includes: scanning a state of the induction machine with different stator frequencies by controlling a supply voltage applied to the induction machine; determining whether a slip value, being a difference between a rotor frequency and a stator frequency, is within a slip interval; and, when it has been determined that the slip value is in the slip interval, regulating the slip value towards zero and magnetising the machine to the required level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.