The electrical parameters of the traction drive system (TDS) can cause abnormal vibrations on the mechanical side. Harmonic torques caused by grid-side interharmonics can affect abnormal vibrations of the wheelsets, threatening the stable operation of the train. However, research on suppressing such abnormal vibrations is relatively lacking. Additionally, although passivity-based control (PBC) can effectively suppress torque pulsation, the stability of the inverter-motor system under such control decreases when the motor speed changes. Firstly, this paper introduces an electromechanical coupling (EC) model developed from the electric TDS and the train-track coupling dynamics model, which is used to illustrate the limitations of PBC. Then, fuzzy control is introduced based on PBC to design an adaptive PBC control method. This control can perfectly adjust the damping injected into the PBC according to variations of motor speed, significantly enhancing system stability. Finally, the effectiveness of the adaptive PBC in reducing torque pulsation and suppressing wheelset vibrations was verified through the EC model of the TDS.
Adaptive Passive-Based Control for Suppressing Pulsating Torque Caused by Grid-Side Interharmonics in Electrification Railways
Lect. Notes Electrical Eng.
International Conference of Electrical, Electronic and Networked Energy Systems ; 2024 ; Xi'an, China October 18, 2024 - October 20, 2024
The Proceedings of 2024 International Conference of Electrical, Electronic and Networked Energy Systems ; Chapter : 47 ; 458-468
2025-02-14
11 pages
Article/Chapter (Book)
Electronic Resource
English
French railways electrification
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