Automotive restart control for submersible pump

Details Automotive restart control for submersible pump Automotive restart control for submersible pump

1998-04-28

1999-10-26

Ro, Bentsu

Electricity: motive power systems

Automatic and/or with time-delay means

Terminal voltage or counter-electromotive force of...

417 18, F04B 4910

Patent

active

059734655

ABSTRACT:
A method for restarting a motor of a submersible pump after a power interruption is disclosed. The system first detects when the power is turned back on to the system. A control means then samples signals sent back from the unpowered motor and determines the frequency and phase sequence of the signals. The speed and direction of operation of the motor are then determined from the determined frequency and phase sequence. A first pulse width modulation waveform is then applied to the motor matching the determined speed and direction of the motor. Finally, the output frequency of the waveform can be adjusted to adjust the speed and direction of operation of the motor until the motor reaches a desired speed and direction of operation.

REFERENCES:
patent: 3875463 (1975-04-01), Reuter et al.
patent: 4103316 (1978-07-01), Kaneko
patent: 4438383 (1984-03-01), Etheridge
patent: 5475292 (1995-12-01), Nakanishi et al.

Affiliated with

Also associated with

Rating

Automotive restart control for submersible pump does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Automotive restart control for submersible pump, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Automotive restart control for submersible pump will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-768497