Using harmonic component(s) to calculate a temperature of a semiconductor device in an inverter module
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United States of America Patent
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Jul 11, 2017
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N/A
app pub date -
Feb 28, 2014
filing date -
Feb 28, 2013
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Abstract
A method for controlling the temperature of a first semiconductor device on an inverter module of a drive configured to drive an electrical machine is disclosed. The method comprises calculating at least one harmonic component of at least one power loss of at least the first semiconductor device; using the at least one harmonic component of the at least one power loss of the at least the first semiconductor device to calculate a temperature of the first semiconductor device; and if the calculated temperature of the first semiconductor device does not meet a predetermined temperature condition, issuing a command to control the operation of the drive such that the temperature of the first semiconductor device is changed to meet the predetermined temperature condition.
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