PAM方式切換誘導電動機の等価回路の提案 : PAM方式によって6極から8極へ切り換える場合

概要

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A pole-changing induction motor with pole-amplitude modulation (PAM I.M.) has a unique property which realizes a speed ratio other than 1:2 with a single winding. PAM I.M., on the other hand, is likely to be influenced by m.m.f. harmonics. As a method to calculate the characteristics of an induction motor, T-type equivalent circuit are often used. However, the T-type equivalent circuit can not directry be applied to PAM I.M. characteristic calculation du to the m.m.f. harmonics. This paper suggests an equivalent circuit of a pole-changing induction motor whose poles are converted from 6 poles to 8 poles by pole-amplitude modulation. The authors derived an equivalent circuit from a voltage equation in the symmetric coordinates. Furthermore, the equivalent circuit constants, when changed to 8 poles from 6 poles, are determined using T-type equivalent circuit constants of a 6-pole induction motor.
秋田工業高等専門学校の論文
2004-02-28