Control method for a start-up control unit and an apparatus to m

Details Control method for a start-up control unit and an apparatus to m Control method for a start-up control unit and an apparatus to m

1996-05-02

1999-01-12

Martin, David

Electricity: motive power systems

Constant motor current, load and/or torque control

318434, 318430, 318474, 318778, 318802, 318807, H02P 700

Patent

active

058595147

ABSTRACT:
A method for the control of a load, such as a motor, by means of a start-up controller (1) connected, on the one hand, to a fixed frequency alternating supply, and, on the other hand, to the motor, and including static switches associated with at least one phase of the motor and operated by a control circuit (2), characterized in that the electromagnetic torque (C.sub.m) of the motor is automatically controlled to a variable reference value (C.sub.cons) in the start-up or deceleration stage of the motor.

REFERENCES:
patent: 4392099 (1983-07-01), Kuniyoshi
patent: 4455522 (1984-06-01), Lipo
patent: 4672288 (1987-06-01), Abbondanti
patent: 5008608 (1991-04-01), Unsworth et al.
patent: 5097193 (1992-03-01), Neis et al.
patent: 5430362 (1995-07-01), Carr et al.
patent: 5483140 (1996-01-01), Hess et al.
patent: 5585708 (1996-12-01), Richardson et al.

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