This paper resumptively introduces the gist of design of electromagnetism, structure and so on of the large synchronous motor driving mine winder.

This thesis introduces the status and importance of the mine winder and the basic ideas about the new style of mine endless-rope winder's drive system.

By taking a practical example, this paper analyses the form of an automatic control system for mine winder, discusses the principle that the system works on, and the way to set up it.