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Author Sang-Min Kim ♦ Seung-Ki Sul
Source IEEE Xplore Digital Library
Content type Text
Publisher Institute of Electrical and Electronics Engineers, Inc. (IEEE)
File Format PDF
Copyright Year ©2005
Language English
Subject Domain (in DDC) Natural sciences & mathematics ♦ Physics ♦ Electricity & electronics ♦ Technology ♦ Engineering & allied operations ♦ Applied physics
Subject Keyword Rubber ♦ Cranes ♦ Energy storage ♦ Supercapacitors ♦ Hybrid power systems ♦ Energy consumption ♦ Acceleration ♦ Resistors ♦ Engines ♦ Power generation
Abstract This paper proposes a hybrid energy system, which consists of a diesel-engine generator and a supercapacitor, for improving performance of a rubber tyred gantry crane (RTGC). The supercapacitor contributes to the energy recovery associated with regenerative braking in 'hoist-down' braking operation and to the rapid energy consumption related with acceleration in 'hoist-up' operation of the RTGC. Hence it does save energy, which is conventionally wasted by a braking resistor. In addition, the large engine generator is replaced by the much smaller one, for the supercapacitor reduces high power demands away from it. For power conversion between the supercapacitor and the DC link, a 3 legs bidirectional DC-DC converter, which has the same structure as the commercially available 3-phase inverter, is used. Two kinds of simulations are performed to study the behaviors of the proposed system under the worst operating conditions. The performance of the proposed hybrid energy system is evaluated through several experiments with a real RTGC
Description Author affiliation: Sch. of Electr. Eng. & Comput. Sci., Seoul Nat. Univ. (Sang-Min Kim; Seung-Ki Sul)
ISBN 0780390334
Educational Role Student ♦ Teacher
Age Range above 22 year
Educational Use Research ♦ Reading
Education Level UG and PG
Learning Resource Type Article
Publisher Date 2005-06-16
Publisher Place Brazil
Rights Holder Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Size (in Bytes) 708.36 kB
Page Count 7
Starting Page 262
Ending Page 268


Source: IEEE Xplore Digital Library