| 摘要 |
A trolley capable mining truck (12) includes ground engaging propulsion elements (24) coupled with a machine frame (22). A pantograph (20, 46) is supported on the machine frame (22) and has an engaged configuration in which the pantograph (20, 46) is electrically connected with an overhead trolley line (18, 48) and a stowed configuration in which the pantograph (20, 46) is electrically disconnected from the overhead trolley line (18, 48). A power system (30) includes an onboard electrical power source (32), which includes an internal combustion engine (34) coupled to an electrical power generator (36), providing electrical power to a pair of electric drive propulsion motors (38) along a first electrical path (40) in a first configuration of the power system (30). The electric drive propulsion motors (38), in turn, power the ground engaging propulsion elements (24). In a second configuration of the power system (30), the pantograph (20, 46) provides electrical power from the overhead trolley line (18, 48) to the electric drive propulsion motors (38) along a second electrical path (52), which includes a transient damping reactor (58). In a third configuration of the power system (30), the onboard electrical power source (32) provides electrical power to an auxiliary device (60) along a third electrical path (62) including an auxiliary power converter (64), wherein the auxiliary power converter (64) includes the transient damping reactor (58). |
