Development of stepping motor drives

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Supervisor:
Dr. Számel László
Department of Electric Power Engineering

This thesis is about designing a driver for stepper motor control. Moreover, the type of stepper motors, control methods, characteristic of the stepper motor and winding configuration will be mentioned with descriptive theory and figures.

A detailed comparison will be done amongst most common stepper motors.

Stepper motor is kind of motor which converts electrical pulses into useful discrete steps. The full rotation is divided into definite steps according to need and applications.

Stepping motor drives are utilized for those applications Where position control is required. Development of digital electronics (Microcontroller) has facilitated the way of operation and control of the stepper motors. In the case of step motors, it is possible to solve position related errors without position control system. The stepping motor drives have similar properties to synchronous, asynchronous and DC motor drives.

Earlier, originally, stepping motor was mainly used for simple point-to-point open loop control positioning tasks. But in modern technology, the credit goes to microcontrollers since they have made the stepper motors used in many control system including machine tool and robotic manipulators.

This thesis mainly focuses on the construction, types, applications, characteristics and important factors which needs to be taken into consideration while designing a driver for Stepper Motor.

Keywords: stepping motor; stepper motor; step motor; special characteristic; classification; the fundamental equation of stepping motor drives; variable reluctance stepping motor; permanent magnet stepping motor; hybrid stepping motor, drive design, feedback system, simulation and parameters.

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