Method of controlling V/F inverter for machines having mechanica

Details Method of controlling V/F inverter for machines having mechanica Method of controlling V/F inverter for machines having mechanica

1989-05-02

1991-09-17

Smith, Jr., David

Electricity: motive power systems

Nonrunning, energized motor

318758, H02P 326

Patent

active

050497936

ABSTRACT:
There is disclosed a method of controlling a voltage-to-frequency inverter which controls an induction motor by the use of an open-loop system. The motor drives a machine such as a crane, and is braked by a mechanical brake. When the machine is started or stopped, a low-frequency voltage is supplied to the motor so that the motor may produce a torque necessary to hold the load, until the actuation of the mechanical brake ends completely.

REFERENCES:
patent: 3331003 (1967-07-01), King
patent: 3486101 (1969-12-01), Rufli
patent: 3847251 (1974-11-01), Maltby
patent: 4042068 (1977-08-01), Ostrander et al.
patent: 4311951 (1982-01-01), Walker et al.
patent: 4337848 (1982-07-01), Kindler
patent: 4451112 (1984-05-01), Hattori et al.
patent: 4456868 (1984-06-01), Yamamura et al.
patent: 4479565 (1984-10-01), Nomura
patent: 4503937 (1985-03-01), Cervenec et al.
patent: 4651073 (1987-03-01), Shimizu et al.
patent: 4681191 (1987-07-01), Ikejima

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