Electricity: motive power systems – Induction motor systems – Power-factor control
Patent
1981-05-11
1983-08-23
Smith, Jr., David
Electricity: motive power systems
Induction motor systems
Power-factor control
318805, 318809, H02P 540
Patent
active
044006551
ABSTRACT:
An inverter controls an induction motor in response to signals from a power factor control circuit. The power factor control circuit receives signals related to motor terminal voltages and multiplexes them to a comparator. The inverter and multiplexor are sequenced each time the comparator input reaches a reference level. The frequency of the inverter is thus self generated. The power factor of the system can be controlled to implement a variety of control strategies.
REFERENCES:
patent: 3619750 (1971-11-01), Mokrytzki
patent: 4024444 (1977-05-01), Dewan et al.
patent: 4051419 (1977-09-01), Takahashi
patent: 4088935 (1978-05-01), D'Atre et al.
patent: 4158163 (1979-06-01), Eriksen et al.
patent: 4230979 (1980-10-01), Espelage et al.
patent: 4249120 (1981-02-01), Earle
patent: 4291264 (1981-09-01), Siemon
patent: 4338559 (1982-07-01), Blaschke et al.
"Inverter Fed Induction Motor Drive Using Power Factor Control" by Rosenberg, Dewan, Slemson; Dept. of EE; Univ. of Toronto; ISA 76 Annual.
"Electronic Analog Slip Calculator for Induction Motor Drives" by Venkataraman, Ramaswami, Holtz; IEEE Transactions on Industrial Electronics and Control Instrumentation, vol. IEC1-27, No. 2, May 1980.
Curtiss William P.
Sharp Gordon P.
Imec Corporation
Smith Jr. David
LandOfFree
Self generative variable speed induction motor drive does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Self generative variable speed induction motor drive, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Self generative variable speed induction motor drive will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1948956