DC Motor

Today,or I mean this night. Yeah I update this blog at 11 pm T.T. it was when my friend,apri setiawan call me via telephone and said that I shouldn’t forget about updating this blog. Okay,here it goes. The topic would be Motor DC with PID controller,it is 3rd task that Mr Priyatmadi order us to solve.

Well,lets start with the definition of dc motor. DC motor is an electric motor that runs on direct current. Furthermore, The DC motor utilizes this concept by changing the direction of the current flowing through the brushes into the coiled wire in the armature. A permanent magnet creates a constant magnetic field, and when current runs through the coils, a force is created that turns the armature. When the armature has turned far enough, the brushes are now in contact with the opposite ends of the coiled wire, effectively reversing the polarity of the voltage across the coil and reversing the current flow, which create a force that spins the armature further in the same direction. This process repeats as long as voltage is supplied to the motor, creating the motor rotational force

We are not here to discuss definition of DC motor,but about application of PID controller in DC motor. As we know before,Mr priyatmadi had told us before about usage of PID controller. A proportional–integral–derivative controller (PID controller) is a generic control loop feedback mechanism (controller) widely used in industrial control systems – a PID is the most commonly used feedback controller. A PID controller calculates an "error" value as the difference between a measured process variable and a desired setpoint. The controller attempts to minimize the error by adjusting the process control inputs. In the absence of knowledge of the underlying process, PID controllers are the best controllers. However, for best performance, the PID parameters used in the calculation must be tuned according to the nature of the system – while the design is generic, the parameters depend on the specific system.

In our presentation mainly covered about usage of different controller,such as: PI controller;PD controller;and PID controller. Not much complex,because we just demonstrate it in matlab,and that is all,we examine what happened and making some conclusion.

For further understanding about our presentation,please download it in here.

Here are some conclusion that can be taken from our presentation: