Abstract:
In the present study, a motor-drive test-bench is designed and fabricated using locally available
hardware components. The test-bench contains a 12V DC motor which is connected to a flywheel
to provide inertial load and also to a DC motor to act as a fixed load. The system is controlled by
a control system capable of implementing ON-OFF, P, PI, PD and PID control actions. The
controller is implemented using PIC18F4550 microcontroller. The system also contains
extensive sensor/instrumentation to measure the system response in response to the applied
control action. Three different speed profiles are transmitted to the motor control system which
generates the control action using the sensor readings. The motor control system is implemented
using PIC18F452 microcontroller system. Control actions are implemented using Pulse Width
Modulation (PWM) signal sent by the motor control system. H-Bridge is used to control the
direction of the motor and MOSFET is used as an electronic switch to provide PWM action. The
system responses are analyzed and it is found that optimized PID controllers provide optimum
system response.
