Sliding mode position control of a vector-controlled induction machine with nonlinear load dynamics

Goh, K.B.; Dunnigan, M.W.; Williams, B.W.

Abstract

In this paper, a solution to the position control problem for a vector controlled induction machine in the presence of nonlinear load friction, is proposed. A sliding mode (SMC) control system using the equivalent control concept and a switching term is designed to compensate for the non-linear load dynamics in the machine. A pseudo sliding technique is incorporated in the switching term design to avoid the main drawback presented by the standard first-order sliding mode control, that is the chattering phenomenon. The control objective is to track a set of reference trajectories such as rotor position and speed. A single component Slotine's sliding mode (SSM) controller and a fixed gain (FG) controller are designed to compare the controller performance. The designed control system is implemented on a test rig. The experimental results are presented in this paper.

• Presentation Conference Type: Conference Paper (Published)
• Conference Name: Second IEE International Conference on Power Electronics, Machines and Drives
• Start Date: Mar 31, 2004
• End Date: Apr 2, 2004
• Publication Date: Nov 1, 2004
• Deposit Date: Oct 25, 2018
• Publisher: Institute of Electrical and Electronics Engineers
• Book Title: Second International Conference on Power Electronics, Machines and Drives (PEMD 2004)
• ISBN: 0863413838
• DOI: https://doi.org/10.1049/cp%3A20040264
• Keywords: variable structure systems , position control , asynchronous machines , induction motor drives
• Public URL: http://researchrepository.napier.ac.uk/Output/813257