Open AccessA sensorless approach for tracking control problem of tubular linear synchronous motor
Author(s) -
Nguyen Hong Quang,
Nguyễn Tiến Quang,
Nguyen Van Lanh
Publication year - 2022
Publication title -
international journal of power electronics and drive systems/international journal of electrical and computer engineering
Language(s) - English
Resource type - Journals
eISSN - 2722-2578
pISSN - 2722-256X
DOI - 10.11591/ijece.v12i3.pp2393-2404
Subject(s) - control theory (sociology) , linear motor , observer (physics) , convergence (economics) , tracking (education) , tracking error , computer science , controller (irrigation) , position (finance) , control (management) , control engineering , mathematics , engineering , artificial intelligence , physics , mechanical engineering , psychology , pedagogy , agronomy , finance , quantum mechanics , economics , biology , economic growth
As well-known, linear motors are widely applied to various industrial applications due to their abilities in providing directly straight movement without auxiliary mechanical transmissions. This paper addresses the sensorless control problem of tubular linear synchronous motors, which belong to a family of permanent magnet linear motor. To be specific, a novel velocity observer is proposed to deal with an unmeasurable velocity problem, and asymptotic convergence of the observer error is ensured. Unlike other studies on sensorless control methods for linear motors, our proposed observer is designed by regrading unknown disturbance load in the tracking control problem whereas considering theoretical demonstrations. By adjusting controller parameters properly, the position and velocity tracking error converge in arbitrary small values. Finally, the effectiveness of the proposed method is verified in two illustrative examples.