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Control Strategy For Powering Auxiliary Device In Trolley Capable Mining Truck

  • US 20130140100A1
  • Filed: 12/01/2011
  • Published: 06/06/2013
  • Est. Priority Date: 12/01/2011
  • Status: Abandoned Application
First Claim
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1. A trolley capable mining truck, comprising:

  • a machine frame;

    ground engaging propulsion elements coupled with the machine frame;

    a pantograph supported on the machine frame and having an engaged configuration in which the pantograph is electrically connected with an overhead trolley line and a stowed configuration in which the pantograph is electrically disconnected from the overhead trolley line; and

    a power system including;

    an onboard electrical power source providing electrical power to a pair of electric drive propulsion motors along a first electrical path in a first configuration of the power system, wherein the onboard electrical power source includes an internal combustion engine coupled to an electrical power generator, wherein the electric drive propulsion motors power the ground engaging propulsion elements;

    the pantograph providing electrical power from the overhead trolley line to the electric drive propulsion motors along a second electrical path in a second configuration of the power system, wherein the second electrical path includes a transient damping reactor; and

    a third configuration in which the onboard electrical power source provides electrical power to an auxiliary device along a third electrical path including an auxiliary power converter, wherein the auxiliary power converter includes the transient damping reactor.

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