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The following news items highlight state-of-the-art research being done by the Power Electronics Group within the National Renewable Energy Laboratory (NREL).
2008 News
January 2008
A landmark study appearing in the International Journal of Heat and Mass Transfer by researchers in NREL's power electronics group marked the first time detailed numerical simulations of impinging jets with phase change have been validated with experimental results.
2007 News
November 2007
A significant NREL study wins an Institute of Electrical and Electronics Engineers (IEEE) award for assessing the trade offs of using various power electronic thermal control technologies to meet DOE FreedomCAR targets by eliminating a dedicated power electronics cooling loop.
October 2007
NREL power electronics researchers are having success developing capabilities to quickly predict an inverter's dynamic heat generation and device temperature profile. This research will greatly improve our understanding of cooling requirements, and therefore facilitate cost-effective system design.
September 2007
This patented concept enhances heat transfer from power electronic components, such as power semiconductors, by allowing forced liquid jets to cool the backside of the electronics. This more effective way of transferring heat can reduce the weight and cost of power electronics devices, which are currently major barriers to their wide-spread use.
Archives
November 2006
NREL testing to evaluate the potential of self-oscillating jets for power electronics cooling, initially shows up to 30% improvement in heat transfer compared to steady jets.
September 2004
NREL researchers have developed new models to help them improve power electronic components that are essential in order overcome major technical barriers to the commercialization of hybrid, advanced internal combustion, and fuel cell vehicle technologies.
June 2004
A critical barrier to developing next-generation power electronics is cooling power electronics packages. To help overcome this barrier, NREL's power electronics team evaluated and redesigned a liquid-cooled heat exchanger design that was used in conjunction with a state-of-the-art inverter.
December 2003
NREL hosted a meeting with the Power Electronic & Electrical Machines (PEEM) subactivity team from DOE's Office of FreedomCAR and Vehicle Technologies, to determine future program direction and funding for the PEEM program.
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