Electric power conversion systems – Current conversion – Using semiconductor-type converter
Patent
1981-10-30
1983-07-19
Shoop, William M.
Electric power conversion systems
Current conversion
Using semiconductor-type converter
363 57, 323287, 361100, 318345C, 318345G, H02M 3315, H02P 516
Patent
active
043947247
ABSTRACT:
A vehicle propulsion motor control apparatus includes a motor current regulating chopper apparatus and a free wheeling diode in the motor circuit. It is desired that the chopper apparatus not be commutated OFF when the free wheeling diode is conducting motor current to prevent damage to the free wheeling diode. A current detector is provided to prevent commutation of the chopper apparatus in response to sensing a current flow through the free wheeling diode.
REFERENCES:
patent: 3614594 (1971-10-01), John
patent: 3636422 (1972-01-01), Miller et al.
patent: 3657625 (1972-04-01), Miller et al.
patent: 3852656 (1974-12-01), Bourbeau
patent: 3931567 (1976-01-01), Kostecki
patent: 4257092 (1981-03-01), Prines et al.
patent: 4258309 (1981-03-01), Ohsaka et al.
patent: 4339697 (1982-07-01), Franz
patent: 4358811 (1982-11-01), Arrzmann
B. J. Krings, "Alternative Systems for Rapid-Transit Propulsion and Electrical Braking", Westinghouse Engineer, Mar. 1973, vol. 33, No. 2, pp. 34-41.
Franz James H.
Fry Warren C.
Merlino Paul J.
Brodahl R. G.
Shoop William M.
Westinghouse Electric Corp.
Wong Peter S.
LandOfFree
Propulsion motor control apparatus and method does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Propulsion motor control apparatus and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Propulsion motor control apparatus and method will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-754693