EE 401 Control Systems Analysis and Design Modeling an Electromechanical System The DC Servomotor Fri, Jan 29 EE 401: Control Systems Analysis and Design Slide 1 of 4
The DC Servomotor Fri, Jan 29 Modeling a DC Servomotor: Commutation results in a change in polarity S N V+ V- S N EE 401: Control Systems Analysis and Design Slide 2 of 4
The DC Servomotor Fri, Jan 29 An electromechanical system The torque is armature current The back-EMF is shaft speed Armature circuit suggests Summing the angular forces Assume a permanent magnet constant field EE 401: Control Systems Analysis and Design Slide 3 of 4
The DC Servomotor Fri, Jan 29 An electromechanical system The torque is armature current The back-EMF is shaft speed Armature input voltage Motor torque + - EE 401: Control Systems Analysis and Design Slide 4 of 4 Input = Armature Voltage Output = Motor Shaft Angle Input = Armature Voltage Output = Motor Shaft Angle