Method and system for determining instantaneous peak power...

Details Method and system for determining instantaneous peak power... Method and system for determining instantaneous peak power...

2007-06-12

2010-06-29

Salata, Jonathan (Department: 2837)

Elevator, industrial lift truck, or stationary lift for vehicle

With call registration means

Shared by plural load supports

C187S247000, C187S388000

Reexamination Certificate

active

07743890

ABSTRACT:
A method and system determine peak power consumption over time by a bank of elevator for servicing a set of passenger hall calls and delivery requests, and selecting elevator schedules that keep peak power consumption below a predetermined threshold. For each car in response to receiving a hall call, a set of all possible paths to service all hall calls assigned to the car are determined, in which each path includes a set of all possible segments. A peak power consumption for each possible segment is also determined. The peak power consumptions for the set of all possible segments for each time instant are added to determine a total peak power consumption for each time instant, and a particular path is selected as a schedule to operate the bank of elevator cars, if the total peak power consumption for any instant in time while operating according to the selected schedule is below a predetermined threshold.

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