Polyphase motor drive imbalance detection

Details Polyphase motor drive imbalance detection Polyphase motor drive imbalance detection

1984-12-04

1985-08-06

Smith, Jr., David

Electricity: motive power systems

Induction motor systems

Primary circuit control

187 29R, 318806, H02P 540

Patent

active

045338620

ABSTRACT:
The current in the windings of a polyphase motor are individually sensed, and individual signals that indicate that current are provided. Using these signals, the difference between positive and negative current flow through the motor is determined, and if that difference exceeds a first level, for a preset duration of time, the motor is permitted to operate for a limited time. But, if it exceeds a second level, for a preset duration of time, the motor is slowed down in a programmed manner. Total current flow through the motor is determined from these signals as well, and if it exceeds a maximum for a preset duration of time, the motor is stopped in a programmed manner.

REFERENCES:
patent: 3225256 (1965-12-01), Carter et al.
patent: 3961688 (1976-06-01), Maynard
patent: 4007401 (1977-02-01), Kimmel et al.
patent: 4024439 (1977-05-01), McClain et al.
patent: 4057842 (1977-11-01), Bauman et al.
patent: 4101013 (1978-07-01), Duriez et al.
patent: 4286303 (1981-08-01), Genheimer et al.
patent: 4333119 (1982-06-01), Schoenmeyr
patent: 4351012 (1982-09-01), Elms et al.

Affiliated with

Also associated with

Rating

Polyphase motor drive imbalance detection does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Polyphase motor drive imbalance detection, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Polyphase motor drive imbalance detection will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-514579