This Project report is based on the initial progress and problems that I have encountered during the course of the main project, which is based on the Investigation into the use of a controlled system to simulate inertia. In the course of this report I will be analysing all the progress made so far and how this was achieved and the entire milestone on the progress and success of this project.
The initial block diagram proposed for this project was wrong and this was noted by the supervisor in charge of this project Dr Malcolm Butler.I was advised by the supervisor to add the tacho and the torque to the system block diagram.
Tacho: A detailed specification was made on the system tacho, from the research done so far it is advisable to use a low inertia dc servo motor-tacho for this project; the reason for this choice is that the dc servo motor incorporates a low inertia which makes it more ideal for use in applications that requires accurate servo control.
The metal commutation on the motor will help to minimise internal friction losses and operating variations due to changes such as climatic change. This will help in conserving the internal energy of the entire system because less energy will be lost through friction.
The dc servo motor also incorporates a dc tachogenerator which makes it ideal for use in applications that requires accurate velocity servo control
Ideal features of the tacho
1) Linear current/torque and speed/back EMF characteristics
2) Low rotor Inertia-short time constant
3) High efficiency –high output/volume ratio
4) Smooth running.
5) Must produce accurate velocity
6) Robust low inertia construction
Commutation System: The dc-micro motors have multisegmented precious metal and copper commutators and multifingered precious metal or copper impregnated graphite brushes. The motor tachogenerators have commutators and brushes made of gold alloy to assure a high quality output signal and provide a minimized...