Structural study of a DC motor model in MATLAB R2024a software

The structure of the mathematical model of a DC motor in the MATLAB v.R2024a software is studied. A feature is the absence of a ban on increasing the motor speed at values of the electromagnetic torque less than the reactive torque, which should be taken into account. The study of the motor operating modes was performed according to the mechanical characteristic in dynamic mode, which was taken using the XY Graph block and which covers all possible operating modes except dynamic braking. Also, a transient analysis was performed in parallel using the oscillograms of currents, speed and torque. This model takes into account the task of an arbitrary load diagram in time using the Stair Generator block. The considered structure of the DC motor model can be easily integrated with control systems, combined with PID controllers, control algorithms, and using PWM modulation for control. For correct modeling, it is necessary to have accurate motor parameters.