Abstract
The paper presents a design of vector control algorithm for electric drive employing a linear permanent magnet synchronous motor (LPMSM). For simulation and further experimental verification it was necessary to formulate a mathematical model of the LPMSM. This model was derived from a standard mathematical model of a rotary PMSM and then exploited to verify vector control of the machine. The presented simulation results are used to control the LPMSM drive system with maximum efficiency.
Highlights
The construction principles of linear motors are known as long as principles of rotational motors
The linear permanent magnet synchronous motor (LPMSM) mathematical model can be derived through analogy to a rotary permanent magnet synchronous motor (PMSM)
The simulation results of the proposed vector control for electric drives employing the LPMSM show a good agreement with theoretical predictions
Summary
The construction principles of linear motors are known as long as principles of rotational motors. The principle of the induction linear motor was described by Charles Wheatson in 1841, [1] These motors have been exploited in industrial applications for last ten years mainly. The secondary part is composed as a squirrel cage stored in slots, or stacked on the iron base or sometimes as a simple aluminium sheet. For many applications it is a primary part which is moved on the path as a mover. The path is usually composed of many sections of permanent magnets, which create a secondary part Such concept requires flexible supply cables, flexible position sensor cable and for high power linear motors flexible tubes for water cooling
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