Development of Course on EMC/EMI for Power Electronic Systems
Abstract
SWSThe emergence of Wide Band Gap (WBG) power semiconductors is driving a metamorphos isin power electronic equipment design, manufacturing and installation practices. Achieving the fullvalue of WBG power semiconductor technology requires a systems level perspective. Futurepower electronic system designers must have a firm grasp on the common mode (CM) anddifferential mode (DM) sources of EMI and associated CM/DM propagation paths. Achieving thehigh switching frequency capabilities of WBG will be accompanied by a movement of the EMIassociated with fundamental switching frequency from 30kHz to 100kHz, switching harmonicsinto the MHz range and high signal edge rate (dv/dt) frequency content into the tens of MHz range.Source emission amplitudes in the 100kHz to 10MHz will be significant compared to Si IGBTbasedsystems, where source emissions were much lower. As a result, the sciences of optimizingEMI mitigating components, ensuring self-compatibility and understanding or predicting systeminter-compatibility are undergoing a significant transformation, requiring tools and techniquespreviously reserved for electromagnetics and embedded systems engineers. Present day methodsof EMC testing, and associated standards and limits, will necessarily undergo changes???the extentof which is unknown. Also, the voltage and power ranges for testing against EMC requireme nts,which are presently limited to the low voltage range will necessarily be expanded into mediumvoltage ranges. It will be essential for future developers and testers to accurately predict how theEMI/EMC of WGB based building blocks will behave and how the associated EMI will scale asthey are put together and installed into large systems where they could not be practically tested ina qualified EMI/EMC testing environment as a complete system. At all levels, engineers withgraduate and undergraduate degrees, and even technicians will need a strong EMI/EMCbackground to work on power conversion systems. They will need to understand also, present daygrounding and shielding practices???what works with today???s technology and what changes willbe necessitated by future technologies.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Jul 26, 2018
- Source ID
- N000141812547
Entities
People
- Robert Cuzner
Organizations
- Office of Naval Research
- United States Navy
- University of Wisconsin System