Abstract
Permanent magnet speed regulation is an energy-saving technology that uses magnetism coupling to realize the torque transmission of non-mechanical connection and changes the gap of the permanent magnetic coupler to adjust the speed of the load. Experimental research on the air-cooled permanent magnet speed regulation according to the actual operation parameters of 500 kw oxidation fan has been conducted in this paper. Analyses of the problems about the rupture of the load ring at the end of the load on the permanent magnetic speed regulation, large motor vibration, noise and so on appeared during the process of the test have been made and improved measures are proposed.
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