Improved duty-ratio stator-flux eighteen-sector SVM-DTC system for new type TFPM

On the basis of space vector modulation and direct torque control, the double six-phase transverse flux permanent magnet motor is taken as the research object. The eighteen-sector stator-flux subdivision method is proposed to reduce current harmonics and improve the characteristic of direct torque c...

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Bibliographic Details
Published in2018 International Conference on Advanced Mechatronic Systems (ICAMechS) pp. 97 - 102
Main Authors Yuan Xiaoqing, Du Xiaodong, Sun Li
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.08.2018
Subjects
Couplings
direct torque control
duty ratio
Permanent magnet motors
stator flux
Stator windings
Torque
Torque control
transverse flux permanent-magnet motor
Voltage control
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Summary:On the basis of space vector modulation and direct torque control, the double six-phase transverse flux permanent magnet motor is taken as the research object. The eighteen-sector stator-flux subdivision method is proposed to reduce current harmonics and improve the characteristic of direct torque control. Control strategy of duty ratio is improved to decrease the torque ripple made by voltage vector mutation. The algorithm combination of the eighteen-sector stator-flux subdivision method and the improved duty ratio algorithm is built as the core of space-vector modulation direct-torque control. The static and dynamic characteristics of control system are simulated. The results show that the new control system can effectively improve the circular flux curve, stable rotate speed, suppress the torque ripple, and enhance the output characteristics of motor torque and rotate speed.
ISSN:2325-0690
DOI:10.1109/ICAMechS.2018.8507139