Controller apparatus for synchronous motor and controlling...

Details Controller apparatus for synchronous motor and controlling... Controller apparatus for synchronous motor and controlling...

2006-10-31

2006-10-31

Masih, Karen (Department: 2837)

Electricity: motive power systems

Synchronous motor systems

Field winding circuits

C318S727000, C318S722000, C318S809000, C318S811000, C318S798000

Reexamination Certificate

active

07129672

ABSTRACT:
For providing a controller apparatus for a synchronous motor and a controlling method thereof, enabling to be manufactured, easily and cheaply, and to obtain a lock mechanism, but without necessity of mechanisms, such as, an electromotive lock mechanism, wherein the controller apparatus for the synchronous motor, which has a stator20wound with AC windings21U,21V and21W, and a rotor30installed within an inside of the stator, rotatably, therein, comprises an inverter200for supplying AC voltages having a predetermined voltage/frequency characteristic to the AC windings, which are wound around poles of the stator of the synchronous motor; and further, the inverter is so controlled that the AC voltages, being supplied from the inverter to the AC windings wound around the poles of the stator is changed into DC voltages to be supplied thereto, when rotation of said rotor is zero (0) and also when a lock function signal is ON in condition thereof, thereby obtaining a lock condition of holding a rotating position of the rotor to the stator.

REFERENCES:
patent: 5191256 (1993-03-01), Reiter et al.
patent: 2002/0043954 (2002-04-01), Hallidy
patent: 64-14775 (1989-01-01), None

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