Passivity-based control of linear switched reluctance motors

Abstract

In this paper, a non-linear controller for linear switched reluctance motors (LSRMs) is developed by utilizing their properties and the energy dissipation theory. As the electrical time constant is much smaller than the mechanical time constant, the whole LSRM driving system can be treated as a two-time-scale system. It is then decomposed into an electrical subsystem and a mechanical subsystem, which are interconnected by negative feedbacks. Controllers for these two subsystems are designed to guarantee that both systems are passive. Because a system consisting of two passive subsystems connected through negative feedbacks is still passive as a whole, stability of an LSRM driving system can be achieved at system level. The proposed control strategy is characterized by a simple structure and easy implementation. Experimental results are also provided to prove the effectiveness and robustness of the proposed position control for LSRM.

Linear switched reluctance motor control with PIC18F452 microcontroller

“…In 2008, Lim and Krishnan presented a LSRM in which the primary propulsion of a ship elevator was proposed and investigated [2]. Similar studies are encountered in the literature and SRM control [11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27][28][29].…”

H∞ control for a class of discrete-time switched systems with state constraints

“…A study on this class of systems has attracted much attention in recent years for its theoretical significance 1–5 and practical importance. 6–12 In the study of switched systems, the focuses have been on the problems of stability, stabilization and H∞ control. 13,14 Many methods have been developed in the study of switched systems such as common Lyapunov function, 15 multiple Lyapunov functions, 16,17 and switched Lyapunov functions.…”