Based on Direct Thrust Control for Linear Synchronous Motor Systems

2009 ◽  
Vol 56 (5) ◽  
pp. 1629-1639 ◽  
Author(s):  
Cheng-Chung Sung ◽  
Yi-Sheng Huang
Keyword(s):  
Synchronous Motor ◽  
Motor Systems ◽  
Linear Synchronous Motor ◽  
Thrust Control ◽  
Direct Thrust Control

Study on SVM-DTC and Sensorless Technique in Long Primary Segmented Permanent Magnet Linear Synchronous Motor

2013 ◽  
Vol 416-417 ◽  
pp. 577-582
Author(s):  
Li Yi Li ◽  
He Zhu ◽  
Ming Na Ma ◽  
C.C. Chan
Keyword(s):  
Permanent Magnet ◽  
Synchronous Motor ◽  
Phase Locked Loops ◽  
Flux Linkage ◽  
Simulation Test ◽  
Flux Observer ◽  
Linear Synchronous Motor ◽  
Thrust Control ◽  
Direct Thrust Control ◽  
Vector Modulation

The thesis systematically researches electromagnetism and mechanical characteristic of primary segmented permanent magnet linear synchronous motor (PS-PMLSM), and discusses the varying rules of coupling flux linkage and inductance of each stator segment. The paper propose the space vector modulation direct thrust control (SVM-DTC) algorithm that based on thrust and flux observer, but also analyzes and builds adaptive slide mode observer (SMO), which adopts multi-segment estimate back-EMF combined method and phase locked loops (PLL) to estimate the position and speed of mover. Owing to the methods above, they are able to efficiently solve application problems in PS-PMLSM, which can't be settled through the conventional SVM-DTC and sensorless controlling method. Finally, the effectiveness of the algorithms is verified by simulation test.

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