Crane, in particular mobile port crane, comprising a hybrid drive system
First Claim
1. Crane, in particular a mobile wharf crane, having a diesel-electric drive, the three-phase generator of which supplies an AC voltage circuit, having a DC voltage circuit connected to the AC voltage circuit, having electric motors which drive at least a rotating mechanism, a lifting mechanism and a luffing mechanism of the crane, having at least one brake resistor and having a short-term energy store which is connected to the AC voltage circuit or to the DC voltage circuit for the intermediate storage of excess energy, wherein at least one of the electric motors is connected to the AC voltage circuit and at least one of the electric motors is connected to the DC voltage circuit and the AC voltage circuit is connected to the DC voltage circuit via a rectifier such that an energy exchange is possible between the AC voltage circuit and the DC voltage circuit.
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Accused Products
Abstract
A crane comprising a diesel-electric drive, the three-phase generator of which supplies an AC voltage circuit, further comprising a DC voltage circuit connected to the AC voltage circuit, electric motors which drive at least one rotating mechanism, a lifting mechanism and a luffing mechanism of the crane, at least one brake resistor, and a short-term energy store, which is connected to the AC voltage circuit or to the DC voltage circuit for the intermediate storage of excess energy. At least one of the electric motors is connected to the AC voltage circuit and at least one is connected to the DC voltage circuit, and the AC voltage circuit is connected to the DC voltage circuit via a rectifier such that an energy exchange is possible between the AC voltage circuit and the DC voltage circuit.
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Citations
22 Claims
- 1. Crane, in particular a mobile wharf crane, having a diesel-electric drive, the three-phase generator of which supplies an AC voltage circuit, having a DC voltage circuit connected to the AC voltage circuit, having electric motors which drive at least a rotating mechanism, a lifting mechanism and a luffing mechanism of the crane, having at least one brake resistor and having a short-term energy store which is connected to the AC voltage circuit or to the DC voltage circuit for the intermediate storage of excess energy, wherein at least one of the electric motors is connected to the AC voltage circuit and at least one of the electric motors is connected to the DC voltage circuit and the AC voltage circuit is connected to the DC voltage circuit via a rectifier such that an energy exchange is possible between the AC voltage circuit and the DC voltage circuit.
Specification