Three-degree-of-freedom bearingless switch reluctance motor excited by constant current source
US11303191B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 14, 2019 |
| Grant date | Apr 12, 2022 |
| Priority date | — |
| Expiry date | Jun 14, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K2201/18
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A three-degree-of-freedom bearingless switched reluctance motor excited by a constant current source includes a rotor and a stator. The rotor consisting of a rotating shaft and a rotor core, where a plurality of rotor teeth is uniformly distributed on an outer circumference of the rotor core. The stator includes a stator core, a magnetic isolation ring, an axial suspension winding, and a magnetic conduction ring that are sequentially connected, and axial control cores and annular constant current source windings which are symmetrically arranged on both sides of the stator core. Outer edges of the axial control cores are connected to the magnetic conduction ring, and inner edges extend to the rotor core. The stator core and the magnetic isolation ring both consist of an axial part and a radial part of which an outer end is connected to an inner wall of the axial part.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.