Device for changing the relative angular positions of operating

Details Device for changing the relative angular positions of operating Device for changing the relative angular positions of operating

1981-08-03

1983-06-28

Weldon, Ulysses

Electricity: motive power systems

Plural, diverse or diversely controlled electric motors

Synchronizing or phasing control

318 86, 318 60, H02P 546

Patent

active

043908217

ABSTRACT:
An electric group drive having synchronous motors which are fed from a static operating converter has a second converter for use in varying the relative angle position of the motors. Provision is made for using the second converter as a start-up and braking converter. A phase shifter and memory-oriented control logic are used to control the processes.

REFERENCES:
patent: 3536968 (1970-10-01), Alabone et al.
patent: 3757179 (1973-09-01), Pedersen
patent: 3789233 (1974-01-01), Winter
patent: 3908132 (1975-09-01), Krampe et al.
patent: 3967170 (1976-06-01), MacDonald et al.
patent: 4061948 (1977-12-01), Lamparter
patent: 4135118 (1979-01-01), Seeger et al.

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