Close Loop Speed Control of DC Motor

This Simulink model shows the speed control of a separately excited motor with closed-loop operation.

This Simulink model shows the closed-loop speed control operation of a seperately excited DC motor. The DC motor is fed from the single-phase phase-controlled rectifier. The rectifier uses SCR as the switch. For the DC motor 'DC Machine Block' is being used with preset model 01. The input AC voltage is of 230V rms with the fundamental frequency of 50Hz. The model works on the constant load torque, and the reference speed is changing with the time. The 'Signal Editor' block is used for generating the reference speed signal. The reference speed mat file is also available with this model.