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De-icing Schemes and Operations for Overhead Power Line Based on Shunt Capacitor Over-compensation Method

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8 Author(s)
Gang Liu ; Dept. of Electr. & Inf. Eng., Jixi Univ., Jixi, China ; Hui Peng ; M. Lehtonen ; M. Degefa
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De-icing schemes and operations for overhead power line in 10kV, 66kV and 220kV networks based on shunt capacitor over-compensation method are proposed in this paper. This novel de-icing method is based on characteristics of sinusoidal AC and theory of shunt capacitor over-compensation. By utilizing 10kV capacitor bank, which is installed as standard apparatus in substation, reactive current can be transmitted to the specific de-icing power line, which leads to over-compensation of network, and temperature of the power line will be increased. This de-icing scheme and operations are proved and verified in 10kV network by on-site experiments. Focus on characteristics and structure of power grid in China, this method is feasible to transferred and applied in 35kV, 66kV and 220kV networks.

Published in:

Electrical and Control Engineering (ICECE), 2010 International Conference on

Date of Conference:

25-27 June 2010