Permanent magnet motor demagnetization testing station
AssigneeGM Global Technology Operations LLC
InventorsAlireza Fatemi, Erik Brandon Golm, Peng Peng, Brian J. Gallert, Le Chang, Jorge Cintron-Rivera
Life of this patent
Estimating the term…
Abstract
A magnetic rotor testing structure includes a stator defining a shaft and a rotorette mounted on the shaft, wherein an angular position of the rotorette relative to the shaft is configured to be adjustable. A magnetic support is received in the rotorette. The magnetic support includes multiple permanent magnets defining a single permanent magnet rotor pole. An electric current source is electrically connected to the stator, such that a current provided by the electric current source energizes the stator.
Claims20
A magnetic rotor testing structure comprising:
- a stator defining a shaft and a rotorette mounted on the shaft, wherein an angular position of the rotorette relative to the shaft is configured to be adjustable;
- a magnetic support received in the rotorette, the magnetic support including a plurality of permanent magnets defining a single permanent magnet rotor pole;
- and
- an electric current source electrically connected to the stator, such that a current provided by the electric current source energizes the stator.
A method for operating a magnetic rotor test comprising:
- positioning a single pole configuration of permanent magnets within a magnet support and positioning the magnet support within a test structure;
- measuring a set of pole data of the single pole configuration prior to applying a demagnetization pulse;
- applying a demagnetization pulse using the test structure, and measuring the set of pole data during the demagnetization pulse;
- measuring the set of pole data of the single pole configuration after applying the demagnetization pulse;
- and
- wherein test structure includes a stator defining a shaft and a rotorette mounted on the shaft, wherein an angular position of the rotorette relative to the shaft is configured to be adjustable, a magnetic support received in the rotorette, the magnetic support including a plurality of permanent magnets defining a single permanent magnet rotor pole, and an electric current source electrically connected to the stator, such that a current provided by the electric current source energizes the stator.
Dependencies are inferred from the claim text.