S-Parameter Based Framework for Analysis of Common Mode Couplings Between MVDC Power Apparatus
Abstract
This task will continue to expand the component modeling work into the realm of MW scale equipment by analyzing other devices already existing in ESRDC labs: e.g. existing 3-level NPC converters used at FSU-CAPS as drives for the dynamometer set, the existing 5-MW variable 2-level voltage source converter used as ungrounded ac and dc source/sink for PHIL, and thenewly installed and commissioned MMC converters in the FSU-CAPS MVDC lab. Moreover, with the presence of the IMU (built by Virginia Tech) in the FSU-CAPS lab in the fall 2014 ~spring 2015 time frame, another MW scale converter of different topology becomes available forcommon mode coupling characterization (note that models of the IMU developed by VirginiaTech do not include common mode coupling effects). This converter is of particular interest as itutilizes high switching frequencies on the SiC modules which potentially increase common modeeffects in the surrounding system. In addition, it is water cooled which adds another dimension tothe common mode problem. Including such a converter to the s-parameter component library andincorporating it into a system level analysis presents a unique research opportunity. It is expectedthat results from this exercise will substantially contribute to reduce the risk perceived byindustry and academia when it comes to ungrounded MVDC systems with SiC type (highswitching frequency) converters.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Jan 25, 2017
- Source ID
- N000141512250
Entities
People
- Mischa Steurer
Organizations
- Florida State University
- Office of Naval Research
- United States Navy