A Study on the Position and Velocity Control of AC Servo System Using Discrete Sliding Mode Predictive Algorithm

Abstract:

The sliding mode predictive controller based on an improved sliding mode reference trajectory is proposed for AC servo systems. On the basis of analysis of servo control systems, the position and velocity control strategy using the sliding mode predictive algorithm is developed. Combining the merits of the sliding mode and predictive control, the algorithm can improve the robustness and eliminate the chattering phenomenon. Moreover, according to the velocity profile during positioning, the sliding mode reference trajectory is designed in accordance with corresponding state motion curves to guarantee the desired dynamic characteristics. Finally, the application experiment is implemented and results demonstrate the feasibility and effectiveness of the proposed control scheme.

• Periodical: Applied Mechanics and Materials (Volumes 29-32)
• Pages: 2018-2024
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.29-32.2018
• Online since: August 2010
• Authors: Hong Ke Li, Li Zhong Song, Huai Shu Li, Lin Shu Huang, Yang Yin
• Keywords: AC Servo System, Positioning, Sliding Mode Predictive Control, Sliding Mode Reference Trajectory, Velocity Control

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