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US 2008/0185234 A1Published application
Elevator system
AssigneeKone Corporation
InventorAri HARKONEN
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AssigneeKone Corporation
InventorAri HARKONEN
Estimating the term…
In the invention an elevator system (24) and a method for controlling elevators in the elevator system are presented. The elevator system (24) is connected to the electricity distribution network (4) of the building, which can further be connected either to the public electricity distribution network (7) or to a reserve power appliance (2). The elevator system (24) comprises at least one elevator (8), an elevator control system (34), an elevator motor (28), and a frequency converter (26) fitted to supply the elevator motor (28). The elevator system can be used both when the electricity network (4) of the building is connected to the public electricity distribution network (7) and when the electricity network (4) of the building is connected to a reserve power appliance (2), and the elevator system (24) comprises means for controlling the elevator (8) such that when the electricity network (4) of the building is connected to a reserve power system (2) the power supplied by the elevator system (24) towards the electricity network does not exceed the power limit Pa that can be set for it.
Elevator system (24), which elevator system (24) is connected to the electricity distribution network (4) of the building, which can further be connected either to the public electricity distribution network (7) or to a reserve power appliance (2), and which elevator system (24) comprises at least one elevator (8), an elevator control system (34), an elevator motor (28), a frequency converter (26) fitted to supply the elevator motor (28), and which elevator system (24) can be used both when the electricity network (4) of the building is connected to the public electricity distribution network (7) and when the electricity network (4) of the building is connected to a reserve power appliance (2), characterized in that the elevator system (24) comprises means for controlling the elevators (8) such that when the electricity network (4) of the building is connected to the reserve power appliance (2) the power supplied by the elevator system (24) towards the electricity network does not exceed the power limit Pa that can be set for it
Method for controlling elevators (8) in an elevator system (24), which elevator system (24) is connected to the electricity distribution network (4) of the building, which can be further connected to the public electricity distribution network (7) or to a reserve power appliance (2), and which elevator system (24) comprises at least one elevator (8), an elevator motor (28), a frequency converter (26) fitted to supply the elevator motor (28) and an elevator control system (34), and which elevator system (24) can be used both when the electricity network (4) of the building is connected to the public electricity distribution network (7) and when the electricity network (4) of the building is connected to a reserve power appliance (2), characterized in that the elevators (8) are controlled such that when the electricity network (4) of the building is connected to a reserve power system (2) the power supplied by the elevator system (24) towards the electricity network (4) of the building is smaller than the power limit Pa that can be set for it.
Dependencies are inferred from the claim text.