Energy-saving control system of rubber-tyred container gantry crane

摘要

An energy-saving control system of rubber-tyred container gantry crane, wherein the diesel engine-electric generator set is controlled to stop when the crane is idle, and a storage device is utilized to supply power to an auxiliary system of the crane, the system comprises: a monitor unit, a charger, a super capacitor, a capacitor monitor module and an inverter. A charge signal is transmitted by the monitor unit when the crane being at an idle state is decided, the charge signal is received by the capacitor monitor module thereby a charge start signal is transmitted to control the charging of the super capacitor by the charger; the diesel engine-electric generator set is controlled to stop or to slow down when the super capacitor has been fully charged being detected by the monitor unit, the super capacitor is used for supplying the power to the auxiliary system of the crane, the direct current of the super capacitor is converted by the inverter to alternating current for supplying the auxiliary system. The energy-saving control system allows RTG to turn off the diesel engine-electric generator set and to implement the operation intermittently, the oil-saving rate of the entire RTG can reach above 40%.