Torque modeling of reluctance spherical motors using virtual power method
In this paper,the torque model of reluctance spherical motor is developed based on the virtual power method for the problem that the finite element method takes a lot of computation time to calculate the torque of re-luctance spherical motor.First,the inductance variation law of a single stator coil is simulated using electromagnet-ic analysis software,and the inductance model is obtained by bilinear interpolation.The obtained inductance are differentiated along the longitudinal and latitudinal directions respectively,to obtain two-dimensional torque values.The two-degree-of-freedom torque is then converted to three-degree-of-freedom torque by coordinate transformation.Finally,a torque measurement platform based on the dynamic torque sensor is built,and the experimental torque is measured and compared with the analytical results to verify the validity of the torque model.
reluctance spherical motortorque modelvirtual work methodinductance model