Evaluation of the Insulation Degradation in 10-kV SiC Power Modules
Abstract
The Power Electronic Power Distribution Systems (PEPDS) program aims to achieve revolutionary changes to system design and operation, by leveraging recent technology advances and developing both the applications to use them and the control and modeling capabilities, needed to employ them, culminating in a megawatt-level test bed that will demonstrate the applicability to a Navy shipboard electri,cal system. Power Electronics Building Blocks (PEBBs) are fundamental to the PEPDS vision. The PEBBs are modular, universal, sailor-,carriable units that can be combined to form any conversion requirements for the ship.To achieve high power density and high efficie,ncy while meeting the power and voltage needs of ships, medium-voltage silicon carbide (SiC) MOSFET power modules are essential. How,ever, the high voltage and fast switching speeds can result in premature insulation degradation, compromising the reliability of the, power module and the PEBB. Furthermore, current power module isolation tests have been shown to be insufficient for assessing the i,nsulation quality and lifetime for medium-voltage SiC power modules. This work proposes to perform a detailed study on the insulatio,n of 10 kV SiC power modules to improve understanding and knowledge of the degradation and failure mechanisms and causes, and to sub,sequently develop a standard for the insulation design and evaluation of these modules. This proposed work is essential to achieving, reliable, medium-voltage SiC-based PEBBs for the PEPDS vision.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Oct 06, 2022
- Source ID
- N000142212845
Entities
People
- Christina DiMarino
Organizations
- Office of Naval Research
- United States Navy
- Virginia Tech