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Electromechanical systems with transient high power response operating from a resonant ac linkThe combination of an inherently robust asynchronous (induction) electrical machine with the rapid control of energy provided by a high frequency resonant ac link enables the efficient management of higher power levels with greater versatility. This could have a variety of applications from launch vehicles to all-electric automobiles. These types of systems utilize a machine which is operated by independent control of both the voltage and frequency. This is made possible by using an indirect field-oriented control method which allows instantaneous torque control all four operating quadrants. Incorporating the ac link allows the converter in these systems to switch at the zero crossing of every half cycle of the ac waveform. This zero loss switching of the link allows rapid energy variations to be achieved without the usual frequency proportional switching loss. Several field-oriented control systems were developed under contract to NASA.
Document ID
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Burrows, Linda M.
(NASA Lewis Research Center Cleveland, OH, United States)
Hansen, Irving G.
(NASA Lewis Research Center Cleveland, OH, United States)
Date Acquired
August 16, 2013
Publication Date
January 1, 1992
Publication Information
Publication: In: IECEC '92; Proceedings of the 27th Intersociety Energy Conversion Engineering Conference, San Diego, CA, Aug. 3-7, 1992. Vol. 1 (A93-25851 09-44)
Publisher: Society of Automotive Engineers, Inc.
Subject Category
Electronics And Electrical Engineering
Accession Number
Funding Number(s)
PROJECT: RTOP 906-11-03
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