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Method to improve the success rate of reclosing of cluster wind farm tie line

A technology for wind farms and tie lines is applied in the field of improving the success rate of reclosing of tie lines of cluster wind farms, and can solve the problems of blocking the output of wind farms, taking a long time to troubleshoot, and affecting the benefits of wind farms.

Inactive Publication Date: 2017-09-12
XINJIANG UNIVERSITY +3
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Problems solved by technology

The invention provides a method for improving the success rate of reclosing of the cluster wind farm tie line, which effectively solves the fault caused by the method of jumping three phases when a two-phase short-circuit fault and a two-phase ground fault occur in the cluster wind farm tie line Long processing time, blocking wind farm output, affecting wind farm benefits and access system stability issues

Method used

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  • Method to improve the success rate of reclosing of cluster wind farm tie line
  • Method to improve the success rate of reclosing of cluster wind farm tie line
  • Method to improve the success rate of reclosing of cluster wind farm tie line

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Abstract

The invention relates to the technical field of wind power generation, and is a method for improving the success rate of reclosing of tie lines of clustered wind farms; The connection and synchronization between the wind farm and the system. After the phase-to-phase or two-phase grounding transient fault of the cluster wind farm connection line is eliminated, the cluster wind farm can be put into operation again, which shortens the time for the entire system to return to normal operation and avoids phase-to-phase or two-phase ground faults. When a two-phase grounding transient fault occurs, large-scale wind farms disconnected from the grid will affect the stability of the system, ensuring the stable operation of large-scale wind power connected to the grid, improving the benefits of wind farms and the system's ability to absorb wind power, and promoting wind power. develop.

Description

Method to improve the success rate of reclosing of cluster wind farm tie line technical field The invention relates to the technical field of wind power generation, and relates to a method for improving the success rate of reclosing of tie lines of clustered wind farms. Background technique The centralized connection of large-scale wind power to the power grid puts forward new requirements for relay protection setting and reclosing strategy. According to the development model of 10-million-kilowatt wind power bases in my country, wind farms are connected to the system step by step in clusters, and wind power output accounts for an increasing proportion of the power grid. The power capacity used for peak regulation in the original system is difficult. Meet the requirements of the peak-shaving capability required by cluster wind farms. When the power grid fails, if large-scale wind farms are out of operation at the same time, it will cause a shortage of active power in the s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02H3/06H02H7/26
Inventor 李凤婷何世恩柴海涛路亮王婷周强马明
Owner XINJIANG UNIVERSITY
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