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:
May. 18, 2021
Filed:
Jul. 23, 2018
General Electric Company, Schenectady, NY (US);
Robert Gregory Wagoner, Roanoke, VA (US);
Lathom Alexander Louco, Arden, NC (US);
General Electric Company, Schenectady, NY (US);
Abstract
A method for monitoring and controlling IGBT temperature in a power converter of an electrical power system includes generating a plurality of temperature signals from a plurality of switching devices via a plurality of temperature sensors. The method also includes selecting a primary switching device from the plurality of switching devices to estimate a primary temperature thereof. Further, the method includes determining the primary temperature of the primary switching device via a temperature measurement circuit communicatively coupled to the primary switching device. Moreover, the method includes comparing remaining temperature signals (or a function thereof) to the primary temperature via at least one comparator circuit. If one of the remaining temperature signals (or the function thereof) exceeds the primary temperature, the method also includes implementing a control action to address the increased temperature.