This paper describes and evaluates a hybrid propulsion system based on diesel generator and supercapacitors (SCs) as energy storage system (ESS) for a rubber tyre gantry (RTG) container crane, which currently operates within the yard of the Algeciras port terminal (Spain) powered by diesel electric generator for supplying the electric drives and motors (hoist and trolley). The SCs, which are connected to the DC bus through a bidirectional DC/DC converter, are controlled by a control strategy based on the DC-bus voltage. The SCs reference current is limited depending on their state-of-charge (SOC). All main components and control strategy of the RTG crane are modelled and simulated in SimPowerSystems. The current and hybrid configuration are simulated and compared under the real working cycle of the RTG crane. The results show the technical viability, the validity of the proposed control strategy, the improvements in the energy efficiency and diesel fuel consumption, and the economic viability of the hybrid propulsion system for the RTG crane.

本文描述并评估了一种基于柴油发电机和超级电容器（SC）的混合动力系统，作为一种用于轮胎轮胎龙门（RTG）集装箱起重机的储能系统（ESS），该混合动力系统目前在Algeciras港口码头（西班牙）的堆场内运行由柴油发电机驱动，为电动驱动器和电动机（起重机和手推车）供电。通过双向DC / DC转换器连接到DC总线的SC通过基于DC总线电压的控制策略进行控制。SC的参考电流受其充电状态（SOC）的限制。RTG起重机的所有主要组件和控制策略均在SimPowerSystems中建模和仿真。在RTG起重机的实际工作周期下，对当前和混合动力配置进行了仿真和比较。