chapter  20
49 Pages

LINEAR INDUCTION MOTORS

For virtually every rotary electric machine, there is a linear motion counterpart. So is the case with induction machines. They are called linear induction machines (LIMs). LIMs develop directly an electromagnetic force, called thrust, along the direction of the traveling field motion in the airgap. The imaginary process of “cutting” and “unrolling” rotary counterpart is illustrated in Figure 20.1.