Magnetic bearing system and method of controlling magnetic bearing system
US6429561B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 7, 2000 |
| Grant date | Aug 6, 2002 |
| Priority date | — |
| Expiry date | Jul 4, 2020 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16C32/0444
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A method for controlling magnetic bearings is disclosed. More specifically, this method moves the rotor position setpoint away from the center point between two opposing bearings and closer to one of the bearings. Assuming the force on the rotor is unidirectional, the bearings will be more stable and will be able to exert more force on the rotor. The bearings require less current, thereby allowing for the reduction of the winding size, and the power consumption of the bearing is decreased. The movement of the shaft in one direction or the other necessitates adaptive control, or the alteration of the dynamic control algorithm to maintain optimal performance by accounting for different system stability requirements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.