DEVICE FOR START-UP AND BRUSHLESS EXCITATION OF NON-CONTACT SYNCHRONOUS MACHINE Russian patent published in 2013 - IPC H02K19/38 H02P9/14 H02P9/30 

FIELD: electricity.

SUBSTANCE: device includes the main synchronous machine (1), inversed synchronous exciter (2) of the main synchronous machine in a common magnetic system with an asynchronous subexciter made in the form of an asynchronous motor, excitation winding of the synchronous exciter, winding located on the rotor, a rotating semiconductor converter and an excitation control. It is equipped with switching device of modes (7), metre (8) of rotor rotation frequency of the main synchronous machine with an inlet and an outlet and winding switches (9, 10). Winding is made in the form of coil groups in a non-salient pole magnetic system of the stator and the rotor, and the magnetic system is combined as to magnetic flows with smaller number of poles for motor operation and large number of poles for generator operation.

EFFECT: enlarging functional capabilities of an exciter owing to providing operation in motor and generator operating modes at reduction of material consumption, increasing efficiency, simplifying the structure and reducing material consumption for production of the exciter.

3 dwg