PROBLEM TO BE SOLVED: To provide an elevator control device which returns regenerative power to a power system side via a regenerative converter and is capable of surely and quickly detecting a power failure of the power system generated in a regenerative operation.SOLUTION: An elevator control device 1 includes: a forward conversion section 10 which converts AC power supplied from a commercial AC power system 7 into DC power and outputs the DC power via first and second power source lines; an inverse conversion section 30 which converts the DC power supplied via the first and second power source lines into AC power and supplies the AC power to an AC motor 2 for vertically driving a car 3 of an elevator; a regenerative converter 52 which converts regenerative power generated during a regenerative operation of the elevator into AC power and returns the AC power to the power system side 7; a power failure detection section 60 which detects a power failure of the power system 7 on the basis of output voltage of the power system 7; and a control section 40 which stops the regenerative converter 52 only for a fixed time in a prescribed period during the regenerative operation of the elevator.SELECTED DRAWING: Figure 1
【課題】回生コンバータを介して回生電力を電力系統側へ戻すエレベータ制御装置であって、回生運転に発生した電力系統の停電を確実に且つ迅速に検出することが可能なエレベータ制御装置を提供する。【解決手段】エレベータ制御装置1は、商用交流電力系統7から供給される交流電力を直流電力に変換して第1及び第2の電源線を介して出力する順変換部10と、第1及び第2の電源線を介して供給される直流電力を交流電力に変換して、エレベータのかご3を上下駆動する交流電動機2に供給する逆変換部30と、エレベータの回生運転時に発生する回生電力を交流電力に変換して電力系統側7へ戻す回生コンバータ52と、電力系統7の出力電圧に基づいて電力系統7の停電を検出する停電検出部60と、エレベータの回生運転中に所定の周期で一定時間だけ回生コンバータ52を停止させる制御部40とを備える。【選択図】図1
ELEVATOR CONTROL DEVICE
エレベータ制御装置
2016-05-12
Patent
Elektronische Ressource
Japanisch
IPC: | B66B Aufzüge , ELEVATORS |
Elevator, elevator control device, and elevator control method
Europäisches Patentamt | 2024
|ELEVATOR CONTROL DEVICE, ELEVATOR, AND ELEVATOR CONTROL METHOD
Europäisches Patentamt | 2019
|ELEVATOR CONTROL DEVICE, ELEVATOR, AND ELEVATOR CONTROL METHOD
Europäisches Patentamt | 2023
|ELEVATOR CALL REGISTRATION DEVICE, ELEVATOR CONTROL DEVICE, ELEVATOR CONTROL METHOD AND ELEVATOR
Europäisches Patentamt | 2016
|Europäisches Patentamt | 2018
|