1. Designing an Advanced Electrical Motor for Propulsion of Electric Aircraft
- Author
-
Zeyuan Xu, David Gerada, Dmitry Golovanov, Chris Gerada, Andrew Page, and Sawata Tadashi
- Subjects
Electric motor ,Halbach array ,Materials science ,Electrically powered spacecraft propulsion ,Magnet ,Power electronics ,engineering ,Litz wire ,Mechanical engineering ,engineering.material ,Propulsion ,Power density - Abstract
A prototype motor rated for 500 kW 3,000 rpm has been developed for aircraft electric propulsion. The design of the motor was optimized using a coupled parameter problem of electromagnetic, mechanical and thermal performances. A high power density of over 5 kW/kg is demonstrated without resorting to intensive direct liquid cooling. The design process considered variables including the winding conductor type, pole/slot combination, dimensions, winding layout and power electronics requirements. The final chosen design is a $3\times 3$ -phase 30-pole 36-slot surface permanent magnet motor with Cobalt-Iron laminations, Sm 2 Co 17 Halbach array magnets and litz wire for an optimum performance.
- Published
- 2019