Nonlinear Speed Control of Switched Reluctance Motor Drives Taking into Account Mutual Inductance

Abstract

A speed control algorithm is proposed for variable speed switched reluctance motor (SRM) drives taking into account the effects of mutual inductances. The control scheme adopts two-phase excitation; exciting two adjacent phases can overcome the problems associated with single-phase excitation such as large torque ripple, increased acoustic noise, and rotor shaft fatigues. The effects of mutual coupling between two adjacent phases and their contribution to the generated electromagnetic torque are considered in the design of the proposed control scheme for the motor. The proposed controller guarantees the convergence of the currents and the rotor speed of the motor to their desired values. Simulation results are given to illustrate the developed theory; the simulation studies show that the proposed controller works well. Moreover, the simulation results indicate that the proposed controller is robust to changes in the parameters of the motor and to changes in the load torque.

Nonlinear Analytic Modeling for Novel Linear Variable Reluctance Motors

“…The 2D finite elements results obtained by the developed model are used to elaborate a surface response of the thrust force and flux linkage according to the translator positions and different supplying current level Figure 2 and In order to develop a high force, the variable reluctance motor operates in saturation part of the B-H curve of the magnetic material, so it has a nonlinear behavior. The origin of this non linearity is mainly due to the non-linearity of the material used for the construction of magnetic circuits and the salient structure of the studied motor [12]. To avoid the problem of inaccuracies of the numerical method and in order to achieve a precise model of LVRM, it is recommended to use a methodology that permits to take account the nonlinearity of the magnetic characteristic of the used material while minimizing the simulation time.…”

Performance Investigation of Switched Reluctance Motor Driven by Quasi-Z-Source Integrated Multiport Converter with Different Switching Algorithms

“…The literature has already proposed some adaptive methods to achieve this purpose with SRM, such as those in [22][23][24].…”