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The Dynamic Power Control Technology for the High Power Lithium Battery Hybrid Rubber-Tired Gantry (RTG) Crane

机器翻译大功率锂电池混合式橡胶龙门(RTG)起重机动态功率控制技术

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【摘要】In order to ensure the operation safety of the lithium battery hybrid rubber-tired gantry (RTG) crane, the dynamic power control of the lithium battery hybrid RTG crane is studied. This paper introduces the construction and switching modes of the lithium battery hybrid RTG crane. The generator set will not turnnonn/noffnfrequently using the power management strategy with maxnonnandnoffn, especially in the hybrid system with high-capacity battery and small size of diesel engine generator set. The high-power lithium battery is a better choice for RTG because it reduces emissions on the port. The dynamic model of the hybrid RTG crane is established, and the operation characteristics in different modes are analyzed. The safe operation is realized through the coordinated control load power, battery power, and the diesel-generator power. The warm-up time and cool down time of generator set are considered in the power management strategy with maxnonnandnoffnfor a series hybrid system for the first time. The hybrid RTG crane characteristic and the energy saving are verified through the experimental data. The cost of charging the battery is analyzed, revealing that the new RTG saves 70% compared to the conventional RTG crane.

【作者】Wei Hong-lei; Gu Wei; Chu Jian-Xin;

【作者单位】Shanghai Maritime University, Shanghai, China; Shanghai Maritime University, Shanghai, China; Shanghai Maritime University, Shanghai, China;

【年(卷),期】2019,66,1

【页码】132-140

【总页数】9

【正文语种】eng

【中图分类】;

【关键词】Cranes; Lithium batteries; Hybrid power systems; Generators; Torque; Load flow;