PROBLEM TO BE SOLVED: To make it possible to reduce peaks of power consumption and regenerative power of a crane and to exhibit the performance of the crane.SOLUTION: A crane controller, which is a crane controller for controlling a plurality of motors provided in a crane, comprises: a drive control unit for controlling the supply of electric power to the motors on the basis of an operation command to each motor, and controlling the motors to be driven; a speed limitation unit for limiting a speed of at least one of the motors at and after timing, at the timing at which a sum of power consumption of the motors or a sum of regenerative electric power reduced from the motors exceeds a preset threshold; and a speed limit cancellation unit for canceling the speed limit by the speed limitation unit upon detecting a predetermined condition is met.
【課題】クレーンの消費電力や回生電力のピークを小さくでき、かつ、クレーンの性能を発揮できるようにする。【解決手段】クレーン制御装置が、クレーンに設けられた複数の電動機を制御するクレーン制御装置であって、各電動機に対する動作指令に基づいて、前記複数の電動機への電力供給を制御して当該電動機の駆動を制御する駆動制御部と、前記複数の電動機での消費電力の総和、または、前記複数の電動機から還元される回生電力の総和のいずれかが予め定められた閾値を超えた時点で、当該時点以降の少なくとも一つの前記電動機の速度を制限する速度制限部と、所定の条件の成立を検出すると前記速度制限部による前記速度制限を解除する速度制限解除部と、を具備する。【選択図】図2
CRANE CONTROLLER AND CRANE CONTROL METHOD
クレーン制御装置およびクレーン制御方法
2015-09-07
Patent
Electronic Resource
Japanese
IPC: | B66C Krane , CRANES |
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