Controlling apparatus for asynchronous motors with wound rotor

Details Controlling apparatus for asynchronous motors with wound rotor Controlling apparatus for asynchronous motors with wound rotor

1976-01-28

1978-02-14

Hohauser, Herman J.

Electricity: motive power systems

With flywheel or massive rotary member

318237, H02P 126

Patent

active

040741745

ABSTRACT:
A super-synchronous Scherbius apparatus which enables wound rotor type induction motors to have a smooth speed control below and above the synchronous speed by controlling the secondary power in either the forward or backward direction through the connection of a cyclo-converter on its secondary side includes a first detecting circuit for detecting a signal corresponding to the primary voltage or the rotating magnetic field, a second detecting circuit for detecting a signal corresponding to the position of the rotor, and a calculating circuit for forming a signal corresponding to the phase of the secondary voltage in accordance with the signals of the first and second detecting circuits.

REFERENCES:
patent: 3144594 (1964-08-01), Graybeal

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