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Non-salient permanent magnet machines are considered poor candidates for flux weakening operations due to their inherent low-inductance characteristics. In this paper, a two-pole 24-slot non-salient PM machine design is proposed that can utilize a winding switching technique to achieve wide speed range operation. A very wide speed range operation (from 3 to 1 ratio to as much as 13 to 1) is demonstrated...
Field weakening control is a key technique for high speed operation of electrical machines. A novel Current Regulated Voltage Source Inverter (CRVSI) operation strategy is adopted in this paper to achieve high speed operation from Surface Mounted Permanent Magnet Synchronous Motor (SMPMSM). This strategy avoids any kind of previously proposed winding switching and achieves same benefits of high flux...
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