To realize a creepless operation of an elevator by multistage feedback control without deteriorating ride quality.SOLUTION: A control device 1 of an elevator performs drive control of an electric motor 3 for hoisting and lowering a car, and is caused to execute: first control for controlling rotational speed of the electric motor 3 by using a first loop for generating a speed command for designating the rotational speed of the electric motor 3 according to difference between a target value of the rotational speed and a detection value of the rotational speed, a second loop for generating a torque command for designating torque of the electric motor 3 according to difference between an integrated value of the difference between the target value and the detection value and the detection value, and a third loop for correcting the torque command to be generated by the second loop according to the difference between the integrated value and the detection value of the torque command; second control for controlling the electric motor 3 by using the first loop and the third loop; and third control for controlling the electric motor 3 by using the first loop and the second loop by switching them according to the detection value of the rotational speed of the electric motor 3.SELECTED DRAWING: Figure 1
【課題】本発明は、乗り心地の低下を招くことなく、多段帰還制御によりエレベーターのクリープレス運転を実現する。【解決手段】かごを昇降させる電動機3の駆動制御を行なうエレベーターの制御装置1に、電動機3の回転速度を指定する速度指令を回転速度の目標値と回転速度の検出値との差に応じて生成する第1ループと、電動機3のトルクを指定するトルク指令を目標値と検出値との差の積分値と検出値との差に応じて生成する第2ループと、第2ループにより生成されるトルク指令を当該トルク指令の積分値と検出値との差に応じて補正する第3ループと、を用いて電動機3の回転速度を制御する第1の制御と、第1ループ及び第3ループを用いて電動機3を制御する第2の制御と、第1ループ及び第2ループを用いて電動機3を制御する第3の制御と、を電動機3の回転速度の検出値に応じて切り換えて実行させる。【選択図】図1
CONTROL DEVICE OF ELEVATOR AND CONTROL METHOD OF ELEVATOR
エレベーターの制御装置及びエレベーターの制御方法
2023-03-02
Patent
Elektronische Ressource
Japanisch
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