Calculation Method of the Static Characteristics of an Asynchronous Electric Drive Under Cyclic Load

The method of mathematical modeling of processes in asynchronous motor with squirrel-cage rotor in conditions of work with periodically variable load is offered. Calculation is carried out by the method of solving the boundary value problem for the differential equations of electromechanical equilibrium, which describe the dynamic mode. The boundary value problem based upon approximation of state variables on the period of process repeatability by third order splines. In the mathematical model of the motor the saturation of the magnetic circuit and the current displacement in the rotor bars are taken into account.