Research on torque fluctuation suppression method of linear motor based on magnetic field orientation control

2020 ◽  
Vol 31 (12) ◽  
Author(s):  
Wei Liu ◽  
Fengpeng Li ◽  
Cheng Jing ◽  
Yidong Wan ◽  
Xingxing Wang ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Linear Motor ◽  
Field Orientation ◽  
Orientation Control ◽  
Magnetic Field Orientation ◽  
Field Orientation Control ◽  
Suppression Method

Speed Estimation Method for Sensor Less Control of AC Motor Drives Based on Stator Field Orientation

2011 ◽  
Vol 130-134 ◽  
pp. 1361-1364
Author(s):  
Shou Qiang Chen ◽  
Fan Li ◽  
Yu Long
Keyword(s):  
Direct Torque Control ◽  
Estimation Method ◽  
Orientation Angle ◽  
Torque Control ◽  
Speed Estimation ◽  
Field Orientation ◽  
Orientation Control ◽  
Ac Motor ◽  
Field Orientation Control ◽  
Estimation Scheme

Based on stator-field-orientation control combining with both direct torque control (DTC) and rotor-field-orientation control a speed estimation scheme is presented in this paper. Two key problems are discussed in detail. First is to use phase operation to decide stator-field-orientation angle θs and then the discrete-tracking-differential (DTD) technique is employed to high quality stator current. The experiments show that accurate speed estimation can be obtained by the method.

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