Electricity: single generator systems – Generator control – Induction generator
Patent
1996-11-18
1998-07-07
Stephan, Steven L.
Electricity: single generator systems
Generator control
Induction generator
322 32, 290 40B, H02P 900
Patent
active
057774595
ABSTRACT:
The invention is an induction electrical power generation system for generating alternating current varying within a frequency range; the system includes an induction electrical generator (52) for generating the alternating current having a rotor and a stator, the stator having at least one phase winding for outputting the generated alternating current and a plurality of poles with at least two different numbers of poles within the plurality of poles being selected to generate the alternating current, an exciter winding wound on the stator which is driven by AC excitation which varies in frequency during generation of the alternating current and the rotor operating with slip during the generation of the alternating current; a variable speed drive coupled to the rotor for driving the rotor in a speed range during generation of the alternating current; an exciter generator (54) coupled to the exciter winding for generating the variable frequency AC excitation; a speed sensor (56) for producing a signal which is a function of the speed of rotation of the rotor; and a controller (58), coupled to the inverter and responsive to the rotor speed signal, for commanding variation of the excitation frequency as a function of the rotor speed signal, a selection of the at least two different numbers of poles within the plurality of poles as a function of the rotor speed signal to control generation of the alternating current within the frequency range and a magnitude of excitation current produced by the exciter generator.
REFERENCES:
patent: Re18811 (1933-05-01), Alger
patent: 1752871 (1930-04-01), Wieseman
patent: 3378757 (1968-04-01), Potter
patent: 4246531 (1981-01-01), Jordan
patent: 4357542 (1982-11-01), Kirschbaum
patent: 4812730 (1989-03-01), Nakagawa et al.
patent: 5239251 (1993-08-01), Lauw
patent: 5281905 (1994-01-01), Dhyanchand et al.
patent: 5483435 (1996-01-01), Uchino
patent: 5552640 (1996-09-01), Sutton et al.
Bansal Madan
Rozman Gregory I.
Thollot Pierre
Ponomarenko Nicholas
Stephan Steven L.
Sundstrand Corporation
LandOfFree
Induction electrical power generating system with variable numbe does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Induction electrical power generating system with variable numbe, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Induction electrical power generating system with variable numbe will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1209803