Overview
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Linear motors are widely used for carrier devices and machine tools because
of their high-speed performance, high acceleration and deceleration, and
accurate positioning.
An analysis that accounts for the characteristics of both the control circuit
and linear motor are necessary to measure the response time of the linear
motor during operation.
This example presents the use of the JMAG-RT system to obtain the inductance
and electromagnetic force versus the current and position, and then a speed
control analysis of the permanent magnet linear motor is performed using
an RT motor model and circuit/control analysis.
The RT motor model is a mathematical model output by the JMAG-RT system. |
Speed/Position of Mover Yoke
The speed versus time when there is a constant command of 0.8 m/sec is
indicated in Fig. 1 and the position of the mover yoke versus time is indicated
in Fig. 2.
The movement of the linear motor with a command of 0.8 m/sec can be confirmed
by the vibrations in the speed around 0.8 m/sec indicated in Fig. 1 and
the peak that is reached around 0.8 indicated in Fig. 2. |
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