Title :
A New Low-Cost Hybrid Switched Reluctance Motor for Adjustable-Speed Pump Applications
Author :
Lu, Kaiyuan ; Rasmussen, Peter Omand ; Watkins, Steve J. ; Blaabjerg, Frede
Author_Institution :
Inst. of Energy Technol., Aalborg Univ., Aalborg, Denmark
Abstract :
This paper presents a new low-cost hybrid switched reluctance (HSR) motor intended for use in adjustable-speed pump drive systems. The motor is a single-phase motor, driven by a unipolar converter, which uses both the reluctance torque and the permanent magnet interaction torque. Compared with conventional single-phase switched reluctance motors, it has an increased torque density. The cogging torque is beneficially used in this motor for reducing the torque ripple. It is demonstrated that such a motor drive system can be a suitable candidate to advantageously compete with the existing motor drive systems for low-cost applications. Finite-element models are used to analyze and predict the motor´s performance. The proposed motor drive system has been fabricated, and its performance has been tested in the laboratory. These experimental results are also presented.
Keywords :
finite element analysis; permanent magnet motors; pumps; reluctance motor drives; torque; variable speed drives; adjustable speed pump drive application; cogging torque; finite element models; low cost hybrid switched reluctance motor; motor drive system; permanent magnet interaction torque; reluctance torque; single phase switched reluctance motors; torque ripple; unipolar converter; Current measurement; Forging; Permanent magnet motors; Reluctance motors; Rotors; Torque; Torque measurement; Adjustable-speed; hybrid switched reluctance motor; low-cost;
Journal_Title :
Industry Applications, IEEE Transactions on
DOI :
10.1109/TIA.2010.2091189