DESIGN STUDY OF FIELD EXCITATION FLUX SWITCHING MACHINE FOR ELECTRIC VEHICLES

TENGKU SUZI MAS AYU BINTI TUAN AMERI

A project report submitted in partial fulfillment of the requirement for the award of the

Master's Degree of Electrical Engineering

Faculty of Electric and Electronic Engineering Universiti Tun Hussein Onn Malaysia

JULY 2014

ABSTRACT

The high price of the petrol and diesel burden the majority people using transport.

The alternative is created energy fkom nature, nuclear or technology. PMSMs are

becoming more attractive and most capable of competing with other motors for

the electric propulsion of HEVs. In fact, they are adopted by famous automakers

such as Honda and Toyota for their HEVs. Unfortunately, the efficiency may

reduce at the high speed range due to increase in iron loss and also there is a risk of

PM demagnetization. The advantages of FEFSM is concentrated armature windings,

no PM, robust rotor structure, simple shape, variable flux control capabilities and easy

cooling. The design of 6s-7P is improved with maximum torque 270 Nm when speed

4359.19 r/min and the maximum power 149.54 kW. The JMAG Designer software

most capable to design and analysis the variety types of motor. Portable software

easier the designer without neglected the high security software by the licence. The

flux mostly fiom rotor salient pole and field excitation coil.

ABSTRAK

Peningkatan nilai harga petrol dan diesel rnmebebankan masyarakat yang majoritinya

menggunakan kenderaan. Kaedah alternatihya ialah mencipta tenaga daripada

sumber alam semulajadi, nuklear atau teknologi terkini. PMSM menjadi satu tarikan

dan amat berkebolehan di dalam menyaingi jenis motor yang lain untuk

penghasilan kenderaan elektrik hibrid (HEV) sebagai momentum

elektrik. Pada dasarnya, ia telah digunapakai oleh pembuat

automatif terkenal seperti Honda dan Toyota untuk HEV

c i p t aannn ya . Tetapi malangnya, kecekapan munglun berkurangan pada julat

kelajuan tinggi bergantung kepada kehilangan besi dan risiko pengurangan daya

magnetik daripada magnet kekal. Kelebihan FEFSM ialah lilitan angker

tertumpu, tidak ada magnet kekal, struktur tegap rotor, rekabentuk mudah,

kebolehan mengawal pelbagai fluks dan sistem penyejukan mudah. Rekabentuk

6s-7P yang ditingkatkan mencapai tork maksimum 270 Nm apabila kelajuan

4359.19 rpm dan kuasa maksimum ialah 149.54 kW. Perisian JMAG Designer

sangat berkemampuan merekabentuk dan menganalisa pelbagai jenis motor. Perisian

yang mudahalih memudahkan pereka tanpa pengabaian keselamatan perisian yang

tinggi dengan lesen. Secara keseluruhannya, fluks terhasil daripada kutub rotor salient

dan lingkaran medan pengujaan.

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