[simoona (OP)]

sal!
I have a project about electric traction power electronics evolotion in the last 20 year.could anyone help me with ideeas.what I realy need is the evolution of converters arhitecture and it's realy hard to find anything about this.
i'm waiting for your reply asap

[another_someone]

Have you thought about some of the individual technologies used for traction control today, and tried to look up the background and history to each technology separately.

Just try making a list of the different ways to control a motor, and try doing a search on the Internet for what is said about the technology and its history.

George