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专利名称：Motor control method and motor control
apparatus
发明人：Herrejon Mendoza, Rafael申请号：EP151558.0申请日：20150225公开号：EP2928070A1公开日：20151007
专利附图：
摘要：A method of controlling a motor (9) includes the steps of a) acquiring arotational speed parameter; b) selecting one of a three-phase modulation scheme and atwo-phase modulation scheme as a switching signal generation system based on a result
of comparing a rotational speed (S45) of the motor (9) with a predetermined referencespeed; c) calculating phase voltage command values (S49) based on a target rotationalspeed (S40) and the rotational speed parameter; d) generating switching signals (S4) byemploying the selected switching signal generation system based on the phase voltagecommand values (S49); and e) outputting the switching signals (S4) to an inverter (2). Instep b), the two-phase modulation scheme is selected when the rotational speed (S45) ofthe motor (9) is higher than the reference speed. Thus, a switching loss can be reducedand power efficiency can be improved without deteriorating starting characteristics andmotor drive characteristics when the rotational speed (S45) is low.
申请人：Nidec Corporation
地址：338 Tonoshiro-cho, Kuze Minami-ku Kyoto 601-8205 JP
国籍：JP
代理机构：Zimmermann, Tankred Klaus
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