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Voltage Rise due to Regenerative Braking of DC machines associated with Gantry Cranes at Kaohsiung Harbour

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3 Author(s)
Yu-Jen Lin ; Dept. of Electr. Eng., I-Shou Univ., Kaohsiung ; Cheng-Yi Hung ; Tzu-Chen Hung

This paper investigates the voltage rise due to the regenerative braking of the dc machines associated with the gantry crane. Manipulation of a crane for precisely positioning the container has to operate so fast in order to keep cargo ship punctuality. The major components in a crane of a harbour container centre are the hoist and trolley which are energised by dc motors in this paper. When the dc machines are operating in the regenerative braking mode, it will act as generators and feed a little active power back to the electric system. Such an operating mode sometimes causes unwanted terminal voltage rising up. Extensive computer simulations are executed to illustrate and analysis the phenomena. Some results are obtained at the end of this paper to get rid of the unwanted voltage rise.

Published in:

Electrical Power Conference, 2007. EPC 2007. IEEE Canada

Date of Conference:

25-26 Oct. 2007