IEEE

Sensorless Starting and Commutation Error Compensation Strategy for High-Speed Brushless DC Motors Based on Quasi-Current Source Inverter

Abstract: Aiming at the problem of incorrect switching caused by speed estimation deviation during the sensorless starting process of high-speed brushless DC motors (BLDCM), this paper proposes a ...
IEEE

Analysis, Modeling, and Experiments of a Nonlinear Inductor-Based Fault Current Commutation Strategy for a Hybrid DC Circuit Breaker

Abstract: Mediumvoltage dc (MVdc) power system offers a potent solution for high power density, agility, and robustness required by electric ships with escalating power needs. However, the dc power ...
Washingtonian

December Culture Guide: 42 Things to Do in the DC Area

It’s the most wonderful time of the year. You can check out a sparkling holiday boat parade at the Wharf, visit a Ruth Orkin photography exhibition at the National Museum of Women in the Arts, or ...
The New York Times

Trump Frees Fraudster Just Days Into Seven-Year Prison Sentence

David Gentile had been found guilty for his role in what prosecutors described as a $1.6 billion scheme that defrauded thousands of investors. By Kenneth P. Vogel Kenneth P. Vogel, who covers ...