Hydraulic Elevators Controlled by Inverter

E Sasaki

Friday 1st May 1992

In general, speed-control of Hydraulic Elevators is valve system. Hydraulic Elevator is inferior to Traction Elevators, in point of energy consumption and efficiency of operation. As to the controller, Inverter control system was adopted, in which a new type of control system give good characteristic for Hydraulic Elevator. This paper describes the outline of Inverter control system for Hydraulic Elevator, saving energy, and improvement efficiency of operation.

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