NASA NTRS · 19730050670
Basic principles of variable speed drives.
Abstract
The basic available types of variable speed drive systems are described in terms of operating characteristics and typical applications. The fundamental factors of torque, speed ratio, and power are discussed as they relate to drive selection, and the use of a systems approach is urged in the choice and development of a variable speed drive train.
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Loewenthal, S. H.. 1973-05-01. Basic principles of variable speed drives.. https://ntrs.nasa.gov/citations/19730050670
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