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Research of Supercapacitor Voltage Equalization Strategy on Rubber-tyred Gantry Crane Energy Saving System

Energy and Power Engineering 2010年第1期2卷 25-30页

作者： Chunhe CHANG Jiangping YANG Yu LI Zhongni ZHU 不详

A model for supercapacitor voltage equalization strategy is analyzed, and on this basis a supercapacitor voltage equalization method for Rubber tyred Gantry Crane (RTG) energy saving system is proposed, namely active voltage equalization method based on Buck-Boost converter. The equalizing speed of the proposed method is fast. Firstly, the working principle and process of the voltage equalization circuit is analyzed in detail. In addition, design of active voltage equalization circuit parameters and control strategy are given. Finally, simulation analysis of the series connection of supercapacitors module is performed. Results show that this method for equalizing voltage can avoid over-voltage of each cell and possess practicable and high value for supercapacitor RTG energy saving system.

关键词： supercapacitor energy saving rubber tyred gantry crane (RTG) voltage sharing sesign of active equalization circuit

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Reducing Fuel Consumption Using Flywheel Battery Technology for Rubber tyred Gantry Cranes in Container Terminals

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Journal of Power and Energy Engineering 2017年第7期5卷 15-33页

作者： Kai Hou Tan Yap Fook Fah School of Mechanical and Aerospace Engineering Nanyang Technological University Singapore

Flywheel Energy Storage System (FESS) is used as an energy regeneration system to help with reducing peak power requirements on RTG cranes that are used to load or unload container ships. Nevertheless, with the use of FESS, Port Operator can deploy undersized generator for new RTG as this will further reduce fuel consumption. This paper presents the investigation of the amount of energy and fuel consumption that can be reduced in Rubber tyred Gantry (RTG) cranes in container terminals by the use of simulation. In addition, Variable Speed Generator is integrated to the simulation-hybridized RTG. Simulation results reveal that the total energy saving exceeded 30% relatively to conventional RTG. A hardware-in-loop system is introduced for the purpose of validating the simulation results. The hardware components procured include a FESS, a Variable Frequency Drive (VFD) and brake resistors.

关键词： Flywheel Energy Storage System Rubber tyred Gantry Mechanical Battery Hardware-in-Loop (HIL) Simulation

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