"Advances in High Efficiency Interior Permanent Magnet (IPM) Motor Drives"Dr. M.A. Rahman
University Research Professor
Faculty of Engineering and Applied Science
Memorial University of Newfoundland
St. John's, Newfoundland, Canada
IEEE IAS Distinguished Lecture, Presentation in Toronto, March 3, 2005
Abstract: This lecture presents a successful design, development and application of high efficiency and high performance interior permanent magnet (IPM ) motor using Neodymium Boron Iron (NdBFe) Magnets. It is intended to operate at both line and variable frequencies. Line start with high inertia load is a special consideration. Its efficiency power factor product is at least 50% better than the conventional induction motors of identical ratings. Recent trends of control and analysis of these high performance IPM motor drives for sensorless and bearingless operation will be briefly outlined. Impacts of high efficiency for heavy duty cycle loads are significant in the electrical energy hungry world.
M Azizur Rahman was born in Santahar, Bangladesh on January 09, 1941. He
received his early education at the Santahar B.P. High School with
Matriculation in 1956, and got his Intermediate in Science from Rajshahi
College in 1958. He received the B.Sc. Eng. degree from the Bangladesh
University of Engineering and Technology (BUET), Dhaka in 1962. He
obtained the M.A.Sc. degree from the University of Toronto, and the PhD
degree from Carleton University, Ottawa, Canada, in 1965 and 1968,
respectively on Canadian Commonwealth Scholarship. In 1962, he joined the
Department of Electrical Engineering, BUET, as a lecturer. He was promoted
to Assistant Professor in 1969, Associate Professor in 1972, and Professor
in 1975. He was a Visiting Research Fellow at Technische Hogeschool
Eindhoven, Netherlands in 1973 and 1975, a Nuffield Fellow at Imperial
College, London, England from 1974 to 1975, and a Visiting Fellow at
University of Toronto in 1975 and 1984-1985, a Leung Wai Sun Fellow at
University of Hong Kong in 1998. From 1975 to 1976, he was with Teshmont
Consultants Ltd., Winnipeg and at University of Manitoba.
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