The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 13, 2018
Filed:
Apr. 03, 2013
Carrier Corporation, Farmington, CT (US);
Parag Kshirsagar, Vernon, CT (US);
Peng Yan, Eagan, MN (US);
CARRIER CORPORATION, Farmington, CT (US);
Abstract
A magnetic bearing system () includes a first active magnetic bearing (AMB) () including a first group of electromagnetic actuators () to support a shaft and a second AMB () including a second group of electromagnetic actuators () to support the shaft. A controller for the two AMB's includes a multi-phase topology () with a plurality of active current switches for controlling the electromagnetic actuators (-) of each of the first AMB () and the second AMB (). Each electromagnetic actuator () of the first AMB () is electrically coupled to an electromagnetic actuator () of the second AMB (). Each pair of coupled electromagnetic actuators () is respectively connected to three phase legs () of the topology () of the controller, whereby one end (X+, X−) of each of the electromagnetic actuators of a pair () is connected to one phase leg () of the topology () and the other ends (X+, X−) are respectively connected to two further phase legs () of the topology (). The controller is operable to receive information indicative of a position of the rotor shaft and supply an adjustment signal to the magnetic bearing system () to adjust the position of the shaft.