Authors : I. Enwelum Mbadiwe and Erwan Bin Sulaiman
Abstract: Electric scooter is a brand of motorcycle using electric motors powered by electricity that is stored in a rechargeable battery. It does not have combustion engine and does not also use fossil fuel for propulsion. The electric motors installed in them improve their performances in terms of energy saving, less heat loss and quick torque response. As a result, they are solution for eliminating high cost of fossil fuel and environmental pollution that contributes to global warming. At the present time, electric motors in electric scooters is a surface mounted Permanent Magnet (PM) motor type 11" Radial Hub and is not suitable for a distance travel up to 100 km due to location of PMs on the rotating rotor. This study proposes a permanent magnet flux switching motor using segmental rotor in outer rotor configuration with the benefit of direct fabrication to sprocket and robust rotor to contain high speed. The geometric design of this motor is introduced using the parameters of eclimo electric scooter. About 2Dimensional Finite Element Analysis (2D-FEA), JMAG Software released by Japan Research Institute Version 14 is used to investigate four machine performances in terms of flux distribution, cogging torque, induced back-EMF, torque and speed versus power characteristics. Preliminary results showed that 12 slots-14 poles has high torque and high power sustainability for long distance travel.
I. Enwelum Mbadiwe and Erwan Bin Sulaiman, 2019. A New Outer Rotor Permanent Magnet Flux Switching Machine using Segmental Rotor for Electric Scooter. Journal of Engineering and Applied Sciences, 14: 10693-10699.