To realize power transmission having high efficiency in an arbitrary positional relation.SOLUTION: A power supply system for a crane hook portion comprises: a power transmission device provided on a side of a hoist rope, which side is fixed to a gib of a crane; and a power receiving device provided closer to the crane hook portion than to the power transmission device. This system further comprises: a positional information acquisition unit that acquires positional information of the power receiving device; and a control unit that controls each of reactances such that the reactance of each of variable reactance circuits, the reactance of a first variable reactance circuit and the reactance of a second variable reactance circuit have respective values, each of which is determined based on power transmission efficiency calculated using a circuit equation indicating the power transmission device and the power receiving device that use, as constants, a self-inductance of each of coils and a mutual inductance between the coils and that use each reactance as a variable, which are acquired when the transmission device and the power receiving devices are arranged in the positional relation based on the positional information acquired by the positional information acquisition unit.SELECTED DRAWING: Figure 3
【課題】任意の位置関係で高効率な電力伝送を実現する。【解決手段】クレーンフック部の給電システムは、巻き上げロープのクレーンのジブに固定される側に設けられた送電装置と、送電装置よりもクレーンのクレーンフック部側に設けられた受電装置と、を備え、さらに、受電装置の位置情報を取得する位置情報取得部と、各可変リアクタンス回路、第1可変リアクタンス回路および第2可変リアクタンス回路の各リアクタンスが、送電装置と受電装置とを位置情報取得部が取得した位置情報に基づく位置関係に配置した場合に得られる各コイルの各自己インダクタンスおよび各コイル間の各相互インダクタンスを定数とし、各リアクタンスを変数とする送電装置および受電装置を表す回路方程式を用いて算出された電力の伝送効率に基づき決定された各値を有するように、各リアクタンスを制御する制御部と、を備える。【選択図】図3
POWER SUPPLY SYSTEM FOR CRANE HOOK PORTION AND POWER SUPPLY METHOD FOR CRANE HOOK PORTION
クレーンフック部の給電システムおよびクレーンフック部の給電方法
2020-05-07
Patent
Electronic Resource
Japanese
IPC: | B66C Krane , CRANES |
ELECTRIC-POWER SUPPLY SYSTEM OF CRANE HOOK PART AND ELECTRIC-POWER SUPPLY METHOD OF CRANE HOOK PART
European Patent Office | 2018
|POWER SUPPLY SYSTEM AND POWER SUPPLY METHOD FOR CRANE HOOK PART
European Patent Office | 2020
|