System and Method for Reinjection of Retard Energy in a Trolley-Based Electric Mining Haul Truck
First Claim
Patent Images
1. A method for reinjecting retard energy regenerated from an electrical motor on a vehicle, the method comprising the step of:
- transmitting via trolley lines at least a portion of the retard energy regenerated during at least one retard interval to a bidirectional electric substation.
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Accused Products
Abstract
Retard energy regenerated from an electrical motor during braking action is reinjected into a power system via trolley lines. The retard energy may be transmitted to a bidirectional electric substation and returned to a utility grid. The retard energy may also be transmitted to an auxiliary energy storage system, such as an ultracapacitor system or a battery system. Installing trolley lines for mining haul trucks on a downhill slope may be used to capture and re-use substantial quantities of retard energy.
63 Citations
41 Claims
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1. A method for reinjecting retard energy regenerated from an electrical motor on a vehicle, the method comprising the step of:
transmitting via trolley lines at least a portion of the retard energy regenerated during at least one retard interval to a bidirectional electric substation. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method for storing retard energy regenerated from an electrical motor on a vehicle, the method comprising the steps of:
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transmitting via trolley lines at least a portion of the retard energy regenerated during at least one retard interval to an auxiliary electrical energy storage system; and charging the auxiliary electrical energy storage system with at least a portion of the retard energy. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. An electrical power system for reinjecting retard energy regenerated from an electrical motor on a vehicle, the electrical power system comprising an inverter configured to:
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receive at least a portion of the retard energy; and transmit via trolley lines at least a portion of the retard energy to a bidirectional substation. - View Dependent Claims (23, 24, 25, 26, 27)
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28. An electrical power system for storing retard energy regenerated from an electrical motor on a vehicle, the electrical power system comprising:
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an inverter configured to; receive at least a portion of the retard energy; and transmit at least a portion of the retard energy to trolley lines; and an auxiliary electrical energy storage system configured to receive at least a portion of the retard energy from the trolley lines. - View Dependent Claims (29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41)
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Specification