Multi-function control system for an induction motor drive

Details Multi-function control system for an induction motor drive Multi-function control system for an induction motor drive

1986-04-30

1988-02-23

Smith, Jr., David

Electricity: motive power systems

Induction motor systems

Primary circuit control

318452, 318806, H02P 540

Patent

active

047273054

ABSTRACT:
In an induction motor drive controlled by SCR devices connected in the AC power supply phase lines of the motor, a plurality of channels establish, on a common input to a digital gate pulse generator of the SCR's, various signals occurring in the course of the motor drive operation. These signals relate to motor operating modes, such as soft start tripping, current limit. A central large scale integrated (LSI) chip responds digitally to such common input so as to establish the required firing angle at any instant and for any situation.

REFERENCES:
patent: 3119055 (1964-01-01), Martin
patent: 4384243 (1983-05-01), Muskovac
patent: 4419615 (1983-12-01), Muto et al.
patent: 4482852 (1984-11-01), Muskovac
patent: 4482853 (1984-11-01), Bhausar
patent: 4623967 (1986-11-01), Naimer

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