Dr. Iqbal Husain
Drs. Iqbal Husain, ABB Distinguished Professor of Electrical and Computer Engineering, and Srdjan Lukic, Assistant Professor of Electrical and Computer Engineering, at NC State University, have been awarded $266,135 by the National Science Foundation for research on Collaborative Research: Direct-drive Modular Transverse Flux Electric Machine without Using Rare-Earth Permanent Magnet Material.
The award will run from September 1st, 2013 to August 31st, 2016.
The objective of the proposed research is to develop compact, high torque density, energy-efficient, rare-earth-material-free electric machines for alternative energy and transportation applications using the concept of transverse flux (TF) paths. The unconventional ?ring? winding producing the homopolar MMF distribution in the airgap used in TF machines allows the increase of pole numbers without the reduction of ampere-turn per pole. This effective increase in current loading makes these machines highly suitable for high-torque, low-speed direct-drive applications. Design innovations in both machine concept and control algorithms distinguish the proposed permanent magnet (PM)-TF structure from those previously developed. The proposed concept has the potential to dramatically increase the torque and power density of electric machines without using rare-earth magnet materials whose cost has increased dramatically over the past five years due to highly limited availability.
Dr. Srdjan Lukic
The goals of this research will be achieved through the following steps: (1) Analyse the electromagnetic, structural and thermal behaviour of the proposed concept; (2) establish analysis, design and control optimization principles for PM-TF machines; (3) design and develop motor controller; (4) fabricate 50kW (peak) prototype; (5) test and analyse performance on an electric powertrain dynamometer; and (6) disseminate results through research publications. A Researcher from National Renewable Energy Laboratory (NREL) has agreed to advise the team and provide technical assistance during the course of this research program. An automotive electric drive manufacturer, US Hybrid, has agreed to provide engineering guidance during the design stage and to help fabricate the prototype.
The research efforts will be supplemented by a comprehensive educational plan built around this proposal. Three lecture/laboratory modules on alternative energy and transportation each to cover five weeks of a 3 credit course will be developed at NC State and University of Akron, and also disseminated to other Universities. Several graduate and undergraduate students will be trained through this project.