Super-twisting extended state observer based quasi-proportional-resonant controller for permanent magnet synchronous motor drive system

• Main Authors: Hou, Qiankang, Wang, Huanzhi, Zhao, Chenhao, Xu, Shoukun, Zuo, Yuefei, Lee, Christopher Ho Tin, Ding, Shihong
• Other Authors: School of Electrical and Electronic Engineering
• Format: Article
• Language: English
• Published: 2023
• Subjects: Engineering::Electrical and electronic engineering; Quasi-proportional-resonant Controller; Speed Fluctuation
• Online Access: https://hdl.handle.net/10356/171795
• Institution: Nanyang Technological University

For the purpose of realizing permanent magnet synchronous motor (PMSM) systems with strong robustness and smooth speed, the quasi-proportional-resonant (QPR) controller is combined with super-twisting extended state observer (STESO) in this paper. Although traditional active disturbance rejection control scheme generally selects a sufficiently large bandwidth of linear extended state observer (LESO) to enhance the time-varying disturbance rejection capacity, the bandwidth of LESO is limited by system stiffness. To solve this tough issue, the STESO using generalized super-twisting technique is developed to optimize the stability and anti-disturbance capacity of motor drive system. In addition, the QPR controller is combined with the proposed STESO to suppress the motor speed fluctuation. Experimental results show that the proposed STESO-based QPR control algorithm has satisfactory characteristics.