Modelling and control of an open-loop stepper motor in Matlab/Simulink

With the advent of increased industrial the automation and microprocessor applications, the interest in digital motion control systems has also expanded. Hybrid Stepper Motors are widely used in open-loop position applications. This article presents a description and a functional model of a hybrid stepping motor. The motor drive methods of full stepping and back stepping are presented in this paper. Test methods for system characterization are described and response characteristics for the simulated and experimental results are compared to verify the model. This paper shows that an open-loop stepping motor can be accurate simulation to predict real hardware performance.