Method and apparatus for characterizing an interior permanent magnet machine
First Claim
1. A method of characterizing an interior permanent magnet (IPM) machine, comprising:
- setting up a testing architecture, the testing architecture including a test IPM machine having a first output shaft coupled to a second output shaft of a secondary speed control machine;
controlling the secondary speed control machine to drive the first output shaft of the test IPM machine at a first desired speed;
determining a pair of desired direct and quadrature axis currents for each of a plurality of peak current magnitudes;
recording characterization data associated with each pair of desired direct and quadrature axis currents; and
repeating the controlling, determining and recording steps for each of a second through nth desired speeds.
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Abstract
One embodiment of the method includes setting up a testing architecture where the testing architecture includes a test IPM machine having an output shaft coupled to an output shaft of a secondary speed control machine. The method further includes controlling the secondary speed control machine to drive the output shaft of the test IPM machine at a first desired speed, determining a pair of desired direct and quadrature axis currents for each of a plurality of peak current magnitudes, and recording characterization data associated with each pair of desired direct and quadrature axis currents. The controlling, determining and recording steps for each of a second through nth desired speeds may be repeated. Control lookup tables for operation of an IPM machine may be generated from the characterization data.
24 Citations
26 Claims
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1. A method of characterizing an interior permanent magnet (IPM) machine, comprising:
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setting up a testing architecture, the testing architecture including a test IPM machine having a first output shaft coupled to a second output shaft of a secondary speed control machine; controlling the secondary speed control machine to drive the first output shaft of the test IPM machine at a first desired speed; determining a pair of desired direct and quadrature axis currents for each of a plurality of peak current magnitudes; recording characterization data associated with each pair of desired direct and quadrature axis currents; and repeating the controlling, determining and recording steps for each of a second through nth desired speeds. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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Specification