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Switched Reluctance Motor Drive With External Rotor for Fan in Air Conditioner

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2 Author(s)
Hao Chen ; Sch. of Inf. & Electr. Eng., China Univ. of Min. & Technol., Xuzhou, China ; Gu, J.J.

This paper describes the developed three-phase 6/8 poles switched reluctance external rotor motor drive for a fan in air conditioner. The external rotor core structure and the internal stator core structure, the three-phase windings arrangement, the slotted claw, and the setting structure of the photoelectric transducers on the rotor position detector are illustrated. The electromagnetic field calculation results are given. The three-phase asymmetric bridge power converter was used in the drive system. The block diagram of the switched reluctance external rotor motor drive with closed-loop rotor speed control is given. The closed-loop rotor speed control is implemented using a fuzzy logic algorithm. The experimental tests of the developed prototype are made for driving the fan from 200 to 950 r/min. The comparison results of the two systems show that the input power and input phase current RMS value are lower in the developed three-phase 6/8 poles external rotor switched reluctance motor drive prototype with the fan than those in the induction motor variable-frequency variable-speed drive with the fan.

Published in:

Mechatronics, IEEE/ASME Transactions on  (Volume:18 ,  Issue: 5 )