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US 2019/0100404 A1Published application
Power arrangement
AssigneeKone Corporation
InventorsAri HÄNNINEN, Tapio TYNI
Life of this patent
Estimating the term…
Abstract
Elevator groups are known have very high peak power demand. The peak power capacity of the power line can be reduced by using a power arrangement involving a battery. The battery can be discharged for operating elevators when the power demand exceeds the capacity of the power line. The battery may be further used for reducing power cost by charging the battery during lower cost time.
Claims20
A method for controlling power supply of at least one elevator comprising:
- providing power to at least one elevator from a power line;
- monitoring power use of said at least one elevator according to predetermined conditions, wherein the monitoring further comprises:
- determining a first threshold value on application basis;
- determining a second threshold value and setting the second threshold value to correspond to the peak power of power line when supplemented with at least one battery;
- supplementing said power from a power line from at least one battery when the first threshold value is met;
- and
- computing estimates of peak power and when detecting a situation where the second threshold level is exceeded the method further comprises rescheduling journeys so that the second threshold is not exceeded.
4 more elements
Dependencies are inferred from the claim text.