RESEARCH ON REFINEMENT OF NONLINEAR SIMULATION MODEL FOR HYBRID STEPPING MOTORS

Based on the improving of the non-linear characteristic study and testing of the winding inductance and mutual inductance of hybrid stepping motor, a comparatively precision dynamical simulation model of two-phase hybrid stepping motor is established in this paper. The fitting expression of the tested inductance, winding flux linkage equation, rotating voltage equation, electromagnetic torque equation and their state equations are also presented. Compared to the simplified analysis, the distinguishing features are obvious. The simulation example for the holding torque characteristic and the vibration characteristic verified that the accuracy of the new model is quite superior to the old one.