Power transmission line dynamic capacity-increase method based on intelligent scheduling

A transmission line and dynamic capacity increase technology, applied in circuit devices, electrical components, etc., can solve the problems of complex operation of power grid transmission lines, and achieve the effect of improving the operating current carrying capacity.

Inactive Publication Date: 2015-08-05
XISHUANGBANNA POWER SUPPLY BUREAU OF YUNNAN POWER GRID CO LTD
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Problems solved by technology

The unique geographical location and topographic features have formed its distinctive climate characteristics, resulting in complex operation of power grid transmission lines

Method used

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  • Power transmission line dynamic capacity-increase method based on intelligent scheduling
  • Power transmission line dynamic capacity-increase method based on intelligent scheduling

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Embodiment Construction

[0010] A method for dynamically increasing the capacity of a transmission line based on intelligent dispatching. The feature of the invention is that the allowable temperature of the current conductor can be increased by obtaining the size of the sag of the line to study, so that the operating current carrying capacity of the conductor can be increased.

[0011] Example: Select a pilot line whose transmission capacity cannot meet the needs of low-valley power reception during the low-valley period, so as to facilitate scheduling and increase capacity during the peak summer period. Configure conductor temperature measuring devices and small weather stations at all measuring points along the line. The former monitors conductor temperature, while the latter monitors ambient temperature, wind speed and sunshine intensity, calculates the limit value of each measuring point, and gives the minimum value as the limit value of the line . According to the formula of wire ampacity:

[0...

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Abstract

Provided is a power transmission line dynamic capacity-increase method based on intelligent scheduling. The method is characterized by researching to improve allowable temperature of an existing wire through obtaining line sag values, so as to improve operation current-carrying capacity of the wire. Through detecting and obtaining sag values of a line, the method calculates the allowable temperature of the wire, and combining with a GIS map, wires of a corresponding line are performed by capacity-increase, so as to improve operation current-carrying capacity of the wire. Through the method, an effective means is provided for intelligent scheduling of a power grid.

Description

technical field [0001] The invention relates to the technical field of transmission lines, wire sag monitoring and capacity increase. Background technique [0002] The operation of power grid transmission lines is often very complicated. For example, Xishuangbanna Prefecture in my country is located in the southwest of Yunnan Province. It is located at about 21°10' north latitude and 99°55' to 101°50' east vertical longitude. Tropical humid zone. The unique geographical location and topographic features form its distinctive climate characteristics, which leads to complex operation of power grid transmission lines. The temperature in Xishuangbanna is very high in summer every year. According to the special geographical characteristics, the temperature change of key high-voltage transmission lines is affected by comprehensive factors such as design considerations, operating load, and operating weather conditions, which is largely unpredictable. Therefore, the proposed applica...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J13/00
Inventor 郑达宇唐光华严志超张永明李新星周永强罗睿
Owner XISHUANGBANNA POWER SUPPLY BUREAU OF YUNNAN POWER GRID CO LTD
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