Variable Speed Synchronous Motor Drive

Description:

Providing it is rotating at more than 15% of its rated speed a synchronous-machine will produce sufficient voltage to allow normal Thyristors to be used in the Inverter of a D.C. Link Variable Speed Drive thus providing an economic solutions for large drives.It is essential that the Inverter Thyristors control be related to the magnetic field position by means of a position encoder. This project was started in 1998 [SGM03:Synchronous Motor; R Kumalo.The project was not completed due to:- a)Mechanical problems with the shaft encoders. b)Thyristor Firing Circuits.

Deliverables:

The Shaft Encoder must be redesigned and new firing circuits will be provided.The drive is then to be completed and tested.

Skills:

Drives synchronous machines, power electronics

Extra Information:

NOTE i) That I am not full time on Campus but will be in twice a week or more often if required. ii) I live with 30 minutes walk of the Campus iii)My home phone numbetr 64-3862 My office is 410, UCT phone: 3470