Open AccessExperiment-based Comparative Analysis of Nonlinear Speed Control Methods for Induction Motors
Author(s) -
Võ Thanh Hà,
Nguyen Tung Lam,
Pham Van Tuan,
Nguyen Hong Quang
Publication year - 2021
Publication title -
journal of engineering and technological sciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.202
H-Index - 14
eISSN - 2338-5502
pISSN - 2337-5779
DOI - 10.5614/j.eng.technol.sci.2021.53.2.12
Subject(s) - control theory (sociology) , backstepping , flatness (cosmology) , induction motor , nonlinear system , control engineering , controller (irrigation) , transient (computer programming) , electronic speed control , stator , vector control , feedback linearization , current loop , engineering , linearization , torque , computer science , current (fluid) , control (management) , adaptive control , voltage , physics , mechanical engineering , agronomy , thermodynamics , cosmology , quantum mechanics , artificial intelligence , electrical engineering , biology , operating system
Field-oriented control (FOC) for induction motors is widely used in industrial applications. By using a fast and accurate torque controller based on a stator current controller it is possible to flexibly implement advanced speed control methods to achieve proper performance both in transient and steady-state states. In this study, a deadbeat controller was used for the current loop. The nonlinear methods used for the outer loop controller were backstepping, flatness-based control, and exact feedback linearization with state derivative. The dynamic responses of these three controls were compared through various experimental results. The advantages and disadvantages of the different control structures were analyzed and evaluated in detail. Based on this evaluation, an appropriate scheme can be specified when deployed in practice.