NDLI: Variable-speed induction motor drives for aircraft environmental control compressors

Content Provider	IEEE Xplore Digital Library
Author	Mildice, J.W. Hansen, I.G. Schreiner, K.E. Roth, M.E.
Copyright Year	1996
Description	Author affiliation: Motive Power Dev., San Diego, CA, USA (Mildice, J.W.)
Abstract	System analysis and engineering have determined that electrically-driven environmental control system (ECS) can help to maintain the improved fuel efficiencies; and electronic controllers and induction motors are now being developed in a NASA/MPD SBIR Program to drive both types of ECS compressors. An important operational requirement for these applications is variable speed/load operation; and total maximum power outputs are under 200-kW for cabin pressurization and 100-kW for vapor cycle compressors, divided among four redundant units in a typical, 300 passenger, wide-body design. Typical speeds for full output of aircraft centrifugal compressors are in the 50000-RPM range. The application area addressed is characterized by slowly-changing inputs and outputs, small reserve power capability for acceleration, and optimization for maximum efficiency. This paper therefore focuses on the differences between this case and the optimum response case, and shows the development of this new motor/controller approach. It starts with the creation of a new set of controller requirements. In response to those requirements, new control algorithms are being developed and implemented in an embedded computer, which is integrated into the motor controller closed loop. Buffered logic outputs are used to drive the power switches in a resonant-technology, power processor/motor-controller, at switching/resonant frequencies high enough to support efficient high-frequency induction motor operation at speeds up to 50000-RPM.
Starting Page	209
Ending Page	214
File Size	548086
Page Count	6
File Format	PDF
ISBN	0780335473
ISSN	10893547
DOI	10.1109/IECEC.1996.552872
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1996-08-11
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Induction motor drives Compressors Aerospace electronics Electric variables control Control systems Induction motors Aircraft propulsion Aerospace engineering Maintenance engineering Systems engineering and theory
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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