Application of inductance matrix in digital simulation

Due to the fact that the inductance matrix of a three-phase induction motor is a cycle one and characteristics of the cycle matrix combinations are valid, it is preferable to derive the correlative expressions between the inductance matrix and its inverse, and the result can then be obtained simply by assignment instead of calling subroutines in order to reduce the computation time. The computation time required by this approach is compared with that by coordinate transformation.