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Published in:
2014 | OriginalPaper | Chapter
Torque Calculation for a Radial Field Permanent Magnet Coupler in a Pump by Analytical Technique
Author : Shiqin Du
Published in: Intelligent Computing in Smart Grid and Electrical Vehicles
Publisher: Springer Berlin Heidelberg
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The magnetic force pumps are widely used in place of petro-chemical industry, drugs manufacture and treatments for heart disease for their compact structure and reliable working. The design of the electromagnetic devices requires accurate calculation of the field parameters. Taking the bigger airgap and regular airgap boundary condition of the radial field permanent magnet coupler into consideration, analytical method is employed to solve the governing partial differential equations in the article. The electromagnetic field distribution for the inner rotor and outer rotor are obtained respectively by the analytical method, thus the torque is calculated and torque-angle curve is drawn.