High-speed motor system with air bearing supporting and control method thereof
US12021461B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 4, 2024 |
| Grant date | Jun 25, 2024 |
| Priority date | — |
| Expiry date | Jan 4, 2044 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P2207/055
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Disclosed are a high-speed motor system with air bearing support and a control method thereof. The system includes: a rotating shaft, air bearings, a motor stator, a motor rotor, and radial displacement sensors. The radial displacement sensors are arranged in two groups, located outside the rotating shaft at both sides of the motor rotor; the radial displacement sensors are used to detect displacement of the rotating shaft in x-axis and y-axis directions. The motor stator is provided with stator slots having armature windings inside. The armature windings are electrically connected to a controller. The armature windings are averagely divided into p winding units according to the number of pole pairs p thereof. The controller includes p controller units that control the winding units respectively. The controller unit inputs a damping current component to the corresponding winding unit, for generating an electromagnetic damping force.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.