Electric motor with harmonic shunting
AssigneeTrane International Inc.
InventorsRichard M. Heiden, Jay H. Johnson, Joseph M. Heger, Charles J. Peterson
Life of this patent
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Abstract
Disclosed is a hermetic AC electric motor that includes harmonics shunting such that high frequency harmonics are shunted from the AC electric motor without the use of one or more high frequency filters in the associated motor drive. A related method of operating an AC electric motor includes shunting high frequency harmonics to a fluid passing through the AC electric motor. Also disclosed is a simplified variable speed motor drive system which eliminates the need for a filter for removing high frequency harmonics.
Claims31
A hermetic AC electric motor for a chiller compressor comprising harmonics shunting such that high frequency harmonics can be shunted from the AC electric motor without the use of one or more filters.
A simplified variable speed drive system, comprising:
- an AC electric source that outputs high frequency harmonics;
- and
- an AC electric motor for a chiller connected to the AC electric source without one or more filters, wherein the AC electric motor includes harmonics shunting such that the high frequency harmonics are shunted from the AC electric motor without the use of one or more filters.
A method, comprising:
- shunting high frequency harmonics to a fluid passing through a hermetic AC electric motor.
A hermetic AC electric motor system not including a filter for removing high frequency harmonics.
Dependencies are inferred from the claim text.