Electricity: motive power systems – Field or secondary circuit control – Plural – diverse or diversely connected or controlled field...
Patent
1980-10-23
1983-01-25
Weldon, Ulysses
Electricity: motive power systems
Field or secondary circuit control
Plural, diverse or diversely connected or controlled field...
318251, 318252, 318529, H02P 506
Patent
active
043706037
ABSTRACT:
A field shunt operation for a chopper controlled series DC propulsion motor in the power mode is provided in response to a desired torque request, when a predicted value of the resulting shunt field motor current is determined to be no greater than the known commutation current limit of the chopper.
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J. J. Moxie et al., "Propulsion Control for Passenger Trains Provides High-Speed Service", Westinghouse Engineer, Sep. 1970, pp. 143-149.
B. J. Krings, "Alternative Systems for Rapid-Transit Propulsion and Electrical Braking", Westinghouse Engineer, Mar. 1973, pp. 34-41.
Franz, Jr. James H.
Jones Stanley W.
Brodahl R. G.
Weldon Ulysses
Westinghouse Electric Corp.
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