Trade Study and Design of a TRL-4, 100 degree C, 28- to 600-V Bidirectional DC Converter Power Stage
Final rept. Oct 2009-Sep 2010
ARMY RESEARCH LAB ADELPHI MD SENSORS AND ELECTRON DEVICES DIRECTORATE
Pagination or Media Count:
We present the design of a 10-kW, bidirectional, 28- to 600-V, high temperature, technical readiness level TRL-4, converter power-stage in support of the Ground Combat Systems GCS heavy brigade combat vehicle modernization program. Five different converter topologies are compared. A current-fed, converter with a low-voltage-side LVS active clamp and a configurable voltage doubling high-voltage-side HVS are selected to meet the high voltage conversion ratio and high power density requirements. Simulations of synchronized and interleaved operation are performed to assess operation over source voltage ranges and identify component values to meet distortion spectrum specifications. Converter component selection allows for synchronous rectification to reduce system losses. Commercial-off-the-shelf COTS devices are specified and analyses of component volume reductions and loss savings for two silicon carbide SiC device replacement options are shown. A powerdense, three-dimensional model of the proposed converter package design is presented.
- Electric Power Production and Distribution