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Calculation method of the maximum transmission capacity of the transmission line of the wind farm

A technology for sending out lines and transmission capacity, applied in the field of calculating the maximum transmission capacity of the outgoing lines of wind farms. Good results

Active Publication Date: 2022-06-24
STATE GRID HUNAN ELECTRIC POWER +2
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This undoubtedly limits the sustainable development of wind power and also restricts the safe operation of wind power systems.

Method used

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  • Calculation method of the maximum transmission capacity of the transmission line of the wind farm
  • Calculation method of the maximum transmission capacity of the transmission line of the wind farm
  • Calculation method of the maximum transmission capacity of the transmission line of the wind farm

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Embodiment Construction

[0045] like figure 1Shown is a schematic flow chart of the method of the present invention: the method for calculating the maximum transmission capacity of the wind farm transmission line provided by the present invention includes the following steps:

[0046] S1. Obtain historical data of the area to be analyzed;

[0047] S2. Calculate the average temperature of the historical monthly and daily maximum temperature of the area to be analyzed according to the historical data obtained in step S1; specifically, the following steps are included:

[0048] A. Calculate the average temperature T of the revised historical monthly and daily maximum temperature of the i-th month of the line i ' ,ave for where t k,max is the highest temperature on the kth day in the ith month; n is the weather in the ith month;

[0049] B. The average temperature T′ of the corrected historical monthly and daily maximum temperature of the i-th month obtained according to step A i,ave , calculate th...

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Abstract

The invention discloses a method for calculating the maximum transmission capacity of a transmission line of a wind farm, which includes acquiring historical data of an area to be analyzed; calculating the average temperature of the highest daily temperature in a historical month in the area to be analyzed; and calculating a temperature correction coefficient of the area to be analyzed; Obtain the maximum transmission capacity of the wind farm outgoing line in each month in the area to be analyzed. When the present invention calculates the transmission capacity of each month sent out by the wind farm, the maximum temperature of each month and the simultaneous rate of the wind farm can be considered comprehensively, and the limit value for the transmission capacity of the wind farm sent out by each month can be obtained, which can meet the actual engineering needs; and comprehensively Considering the maximum transmission capacity of the transmission line of the wind farm in different months, the maximum output power of the wind farm can be sent out, effectively reducing the power waste of the wind farm, which is conducive to the safe and stable operation of the power grid and the improvement of the power transmission efficiency of the transmission line; therefore, the method of the present invention is more efficient. It conforms to the actual operation status of the current wind farm, and has high reliability and good scientificity.

Description

technical field [0001] The invention belongs to the field of electrical automation, and in particular relates to a method for calculating the maximum transmission capacity of an outgoing line of a wind farm. Background technique [0002] With the development of economy and technology and the improvement of people's living standards, electric energy has become an indispensable secondary energy in people's production and life, bringing endless convenience to people's production and life. With the increasingly prominent environmental problems, new energy power generation has attracted more and more attention. [0003] Wind power is an important part of my country's energy sector. At present, wind power in many provinces in southern my country is dominated by mountain wind power, which is scattered and has a small capacity. Therefore, 2 to 3 wind farms (or wind power + hydropower, with a general capacity of 100,000 to 150,000 kilowatts) are usually bundled and collected. back 3...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/00
CPCH02J3/004H02J2203/20
Inventor 谢宇峥章德杨高才龙爱国肖帅禹海峰李梦娇朱思睿
Owner STATE GRID HUNAN ELECTRIC POWER
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