Static power conversion for adding DC motors

Details Static power conversion for adding DC motors Static power conversion for adding DC motors

1987-02-06

1988-05-10

Ro, Bentsu

Electricity: motive power systems

Generator-fed motor systems having generator control

318137, 318433, H02P 734, H02K 720

Patent

active

047438142

ABSTRACT:
A method and apparatus of adding a DC drive motor to an existing Ward-Leonard motor-generator motion drive for a material handling device which utilizes static power conversion to supply the armature current of the added DC drive motor. Existing drive motors receive their power from corresponding generators which are shaft driven by an AC motor. The added DC motor obtains its power through a transformer which reduces AC line voltage down to the proper level and which is then converted to a variable voltage reversible DC armature supply by a power conversion module. The speed of the existing motors and the added motor is synchronously controlled from an operator's master switch.

REFERENCES:
patent: 2567427 (1951-09-01), Fox
patent: 2996876 (1961-08-01), Beneditz
patent: 3460278 (1969-08-01), Pesavento et al.
patent: 4292572 (1981-09-01), Ivy
patent: 4489243 (1984-12-01), Nola

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