Process for determining the load of an asynchronous motor fed vi

Details Process for determining the load of an asynchronous motor fed vi Process for determining the load of an asynchronous motor fed vi

1994-05-11

1995-08-22

Shoop, Jr., William M.

Electricity: motive power systems

Induction motor systems

318254, 318811, 318798, 318805, H02P 124

Patent

active

054443504

ABSTRACT:
In an asynchronous motor fed from an AC current network (A:Mp) via a frequency converter (5;6) and having an electronic control system (2;3) for controlling the operating voltage as a function of a comparison of a load-specific current signal, which can be detected by the electronic control system (2;3), with a corresponding control of the asynchronous motor (1) can be achieved with a low electronic expenditure by providing the current decay time (A.sub.1) as a load-specific current signal during which time the free-wheeling current following after voltage interruption in a motor winding path decreases by a specific degree.

REFERENCES:
patent: 4491778 (1985-01-01), Knox et al.
patent: 4544868 (1985-10-01), Murty
patent: 4779430 (1988-10-01), Thuruta et al.
patent: 5194797 (1993-03-01), Kahkipuro
patent: 5241257 (1993-08-01), Nordby et al.
patent: 5250890 (1993-10-01), Tanamachi et al.

Affiliated with

Also associated with

Rating

Process for determining the load of an asynchronous motor fed vi does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for determining the load of an asynchronous motor fed vi, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for determining the load of an asynchronous motor fed vi will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2144181