Alternating-current deicing method based on flow cell

A technology of liquid flow battery and ice-melting method, which is applied in the installation of cables, electrical components, overhead installation, etc. It can solve the problems of ice-coated dancing wires, uneven tension of wires, and reduced insulation strength of insulators, so as to ensure safety and stability. , Improve ice-melting power and wide application range
CN103457225AActive Publication Date: 2013-12-18大连融科储能装备有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
大连融科储能装备有限公司
Publication Date
2013-12-18

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Abstract

The invention discloses an alternating-current deicing method based on a flow cell. The alternating-current deicing method includes the following steps: the tail end of a power transmission line needing deicing is connected with a grounding system including a resistor and a sixth switch unit, a main control system calculates clinical currents for preventing the power transmission line needing deicing from being covered by ice, the main control system obtains needed deicing power, a third switch unit is closed, a switch unit connecting a high-voltage bus and the start end of the power transmission line needing deicing is closed, the sixth switch unit is closed, the main control system controls output power of a flow cell power supply system to reach the needed deicing power P, the main control system calculates needed time of deicing, and the main control system judges whether time needed by deicing is reached, and if yes, the sixth switch unit is disconnected. According to the method, the tail end of the power transmission line needing deicing is connected with the grounding system, the start end of the power transmission line needing deicing uses the flow cell power supply system in combination with a solar power supply system or a wind power supply system as a deicing alternating current power, and the alternating-current deicing method saves energy and is practical and convenient to use.
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Description

technical field

[0001] The invention relates to the technical field of ice melting for power transmission lines, in particular to an AC ice melting method based on a liquid flow battery. Background technique

[0002] China is one of the countries with the most serious icing on transmission lines in the world. Severe icing will lead to a sharp decline in the mechanical and electrical performance of transmission lines, which will lead to icing accidents. There have been icing accidents on transmission lines in Hunan, Hubei, Guizhou, Jiangxi, Yunnan, Sichuan, Henan and Shaanxi provinces in China. Icing accidents have seriously threatened the safe operation of my country's power system and caused huge economic losses.

[0003] The main hazards of wire icing are as follows:

[0004] 1. Overload: The actual weight of the ice-covered conductor exceeds the design value by a lot, which leads to mechanical and electrical accidents on the overhead transmission line;

[0005] 2. Accid...

Claims

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