Motor drive having invertor

Details Motor drive having invertor Motor drive having invertor

1993-03-08

1995-03-28

Ro, Bentsu

Electricity: motive power systems

Induction motor systems

Braking

318254, 318376, 318811, 318762, H02P 318

Patent

active

054020450

ABSTRACT:
A motor drive includes an invertor (5) with which a motor (6) is rotated at a variable speed. To suppress noises caused by ripple components contained in currents flowing in phase coils of the motor, the invertor (5) is controlled so as to direct a commuting current flowing from the phase coils to a d.c. power source (1) and at a time when the motor is decelerating to circulate in a path including the phase coils and the switching transistors of the invertor (5). This control is performed when the commuting currents fall below a predetermined level.

REFERENCES:
patent: 4368411 (1983-01-01), Kidd
patent: 4511827 (1985-04-01), Morinaga et al.
patent: 4528486 (1985-07-01), Flaig et al.
patent: 4544868 (1985-10-01), Murty
patent: 4558264 (1985-12-01), Weischedel
patent: 4782272 (1988-11-01), Buckley et al.
patent: 4787021 (1988-11-01), Hokari et al.
patent: 5015927 (1991-05-01), Reichard
patent: 5119000 (1992-06-01), Schultz
patent: 5142208 (1992-08-01), Curran et al.
patent: 5151637 (1992-09-01), Takada et al.
patent: 5256949 (1993-10-01), Reichard et al.

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