STORAGE APPARATUS OF CRANE, CRANE POWER SUPPLY AND POWER SUPPLY FACILITY OF CRANE

摘要

PPROBLEM TO BE SOLVED: To provide a storage apparatus of a crane for continuously operating the crane even if the storage apparatus of the crane is failed, a crane power supply, and a power supply facility of the crane. PSOLUTION: The storage apparatus 30 of the crane is detachably attached to the crane power supply 10, and is provided with connection terminals P', N' on the storage side paired with connection terminals P, N on the power supply side, a capacitor 31, a bidirectional chopper circuit 32 disposed between the capacitor 31 and the connection terminals P', N' on the storage side, and a charge/discharge controller 33 for controlling a charge/discharge of the capacitor 31 by controlling the bidirectional chopper circuit 32 in response to a load in a motor 14. PCOPYRIGHT: (C)2008,JPO&INPIT