Energy-saving device of elevator

An energy-saving device of elevator is disclosed. The elevator further comprises a traction motor and a motor driver. The motor driver is used to convert the kinetic energy of the traction motor at deceleration into the electrical energy, and the electrical energy is delivered to the energy-saving d...

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Bibliographic Details
Main Authors YE, BO-YI, HUANG, WEN-LONG, WU, YONGUN, HUANG, MING-XI
Format Patent
LanguageChinese
English
Published 01.07.2012
Subjects
ELEVATORS
ESCALATORS OR MOVING WALKWAYS
HAULING
HOISTING
LIFTING
PERFORMING OPERATIONS
TRANSPORTING
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Summary:An energy-saving device of elevator is disclosed. The elevator further comprises a traction motor and a motor driver. The motor driver is used to convert the kinetic energy of the traction motor at deceleration into the electrical energy, and the electrical energy is delivered to the energy-saving device through the direct current (DC) link of the motor driver. The energy-saving device includes a dual-port electric-power conversion circuit and an energy-saving controller, wherein the dual-port electric-power conversion circuit contains a DC port and an alternating current (AC) port. The DC port is connected to the DC link of the motor driver, and the AC port is connected to the Mains, The energy-saving controller is used to detect the voltage of the DC link and the three-phase voltage and the phase angle of the Mains. When the energy-saving controller detects the electrical energy, which is converted from the motor driver, inputted into the DC link to allow the voltage of the DC link exceeding a predetermined
Bibliography:Application Number: TW20100147321