Linear switched reluctance motor control with PIC18F452 microcontroller

Abstract

This paper presents the simulation, control, and experimental results of the velocity of a double-sided, 6/4-poled, 3-phased, 8 A, 24 V, 250 W, and 250 N pull force linear switched reluctance motor (LSRM). In the simulation and experimental study, the reference velocity is constant depending on the position and time. The velocity versus the position of the translator was controlled with fuzzy logic control (FLC) and proportional-integral (PI) control techniques.The motor was controlled by PI control method with a PIC18F452 microcontroller due to its low cost. The results of the velocity of a translator were compared with the simulation results of the PI control and FLC techniques. It was seen that the PIC18F452 microcontroller is sufficient in the velocity control of the LSRM, and in the FLC method, the force and velocity ripples are lower than in the PI control method.

A low cost velocity control of double sided LSRM by sliding mode control and PIC18F452

“…The LSRM has a high nonlinear characteristic due to its nonlinear flux behaviors [13]. In order to simplify its equations, the modeling is performed without taking into account the magnetic saturation and mutual inductance between the phases.…”

“…Different phases are considered identical and end effects are also neglected [10]. Those approximations are used in many references [10][12] [13]. The confrontation between experimental results and the model based on these approximations in [13] prove that this latter is a good reliable method used in studying the electrical and mechanical response of the motor.…”

“…Although this strategy is simple, it is characterized by force and position ripple that hampers its integration into a high precision application. [13] and [7] present a simulation study of LSRM control by using fuzzy logic control (FLC) and PI control, these methods are suitable for controlling this motor, but they need high performance hardware.…”

“…In fact, PID control is one of the conventional control strategies used for various industrial processes from many years due to their simplicity in operation [13].…”

“…This actuator is composed by3-phase, 6/4-poled. The electrical characteristics are 8 A, 24 V, 250 and produce 250 N pull force [13],…”