Problems of developing models of electric motors of electric traction drive of vehicles
The methods of modeling the system electric motor − control device were analyzed. Simulation based on Maxwell’s equations, solution of the Cauchy problem, analysis of processes using vector diagrams and matrix representation methods was considered. The simulation package Simulink, Mat Lab using the integral Laplace transform was chosen as the most suitable for solving the problem of optimization of electric drives of vehicles in terms of energy saving. The problem of constructing models with nonzero initial conditions was considered. The models of electric traction drive with separately excited motor and simplified linear depen- dence of the motor magnetic flux on magnetizing force were constructed. The model of electric drive when taking into account nonlinear magnetic properties of steel was constructed. The models constructed allow effec- tive research of the dynamics of electric drive and develop methods for its optimization. The models of direct-current motors were proposed, which take into account actual magnetization curves.