Dynamic Modeling And Analysis For 5-hybrid Stepping Motor System Based On MATLAB/Simulink

The stepping motor can not be separated from its drive power. The operation characteristic of the system is mainly decided by its drive circuit except the property of the motor. Thus, the study of drive technology is the same important as the study of the motor itself. Five-phase hybrid stepping motor ,as one of the main products of stepping motor, has been applied widely in many fields, So research on its drive technology are always concerned. Fixed-chopping frequency and constant total current driving, as a new stepping motor driver system, is the development direction, but few research on it can be found in domestic and foreign. Among its winding connections, New pentagon winding connection is apparently the best. Based on modeling and simulation of the steady characteristic of five-phase hybrid stepping motor driver system with fixed-chopping frequency, constant total current driving and new pentagon winding connection pattern, the paper studies the dynamic characteristic of the system, especially single step response characteristic.MATLAB/Simulink is applied to the establishment of the simulation model, and good effects have been obtained.What this paper finished mainly work as follows: Five-phase hybrid step motor driver system with fixed-chopping frequency and constant total current driving is fully described. Mathematical model of the system, included the current control circuit, power driving circuit and five-phase hybrid stepping motor is established. The steady modeling of the system is established and studied. Based on the steady modeling of the system, dynamic modeling of the system is studied and single step response characteristic is constructed with MATLAB/Simulink. The simulation results, which is certified by the theory analysis, coincide with the theory analysis.