Active magnetic bearings control system
US9293971B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 30, 2014 |
| Grant date | Mar 22, 2016 |
| Priority date | — |
| Expiry date | Sep 13, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P2203/00
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A control device for controlling the position of a rotor supported by active magnetic bearings is provided. The control device includes a trajectory planning module for generating a requested position, speed and acceleration; a feedback unit for generating a position feedback value and a speed feedback value; a first correction circuit for generating a first command signal according to the difference between the requested position and speed and the position and speed feedback value respectively; a feed-forward controller for generating a second command signal; an adder for adding first and second command signals and delivering a third command signal for a non-linear inversion circuit connected to the adder for generating flux command signals for the electromagnets, and a second correction circuit for generating voltage command signals for the power amplifiers which control the current flowing in the electromagnet coils of the active magnetic bearings.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.