A Transmission Line Protection Method for Wind Farms Based on Power Modulus Component in Frequency Domain

XIONG Jian; MAIMAITI·Sidike; ZHANG Huijiang; HUANG Qing; ZHANG Chao; ZHOU Baojun; CHEN Jiuqi; HUA Feng; ZHANG Yufeng; NIE Zhencun; MA Jing

doi:10.19725/j.cnki.1007-2322.2023.0355

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A Transmission Line Protection Method for Wind Farms Based on Power Modulus Component in Frequency Domain

更新时间：2026-04-02

- A Transmission Line Protection Method for Wind Farms Based on Power Modulus Component in Frequency Domain
- Vol. 43, Issue 2, Pages: 320-330(2026)
- 作者机构：
  
  1. 国网伊犁伊河供电有限责任公司, 新疆维吾尔自治区伊宁市,835000
  2. 新能源电力系统国家重点实验室(华北电力大学), 北京市昌平区,102206
- 作者简介：
- 基金信息：
- DOI：10.19725/j.cnki.1007-2322.2023.0355
  CLC： 2
- Published：2026
- 稿件说明：
移动端阅览
XIONG Jian, MAIMAITI·Sidike, ZHANG Huijiang, et al. A Transmission Line Protection Method for Wind Farms Based on Power Modulus Component in Frequency Domain[J]. 2026, 43(2): 320-330.
DOI：

XIONG Jian, MAIMAITI·Sidike, ZHANG Huijiang, et al. A Transmission Line Protection Method for Wind Farms Based on Power Modulus Component in Frequency Domain[J]. 2026, 43(2): 320-330. DOI： 10.19725/j.cnki.1007-2322.2023.0355.

摘要

针对双馈风电场暂态电气量无法准确解析，导致传统保护方法难以正确判别故障位置，不能正确动作的问题，提出一种基于频域功率模分量的风电场送出线路纵联保护方法。首先，结合风机模型与风场网络拓扑，考虑集电线上所连接各台风机机端电压的差异特征，计算风电场送出短路电流频域模分量，建立双馈风电场故障频域等效模型。在此基础上，根据区内外故障网络拓扑的变化，选取频域功率一模分量构造保护判据。最后，利用RT-LAB平台进行仿真，结果表明所提方法不仅可以实现区内外故障的正确判别，而且具有较好的耐过渡电阻能力，不受故障位置的影响。

Abstract

In view of the fact that the transient electrical quantities in doubly-fed wind farms cannot be accurately analyzed

leading to the issue of incapability of traditional protection methods in correctly identifying the fault location and acting accurately

a longitudinal protection method is proposed for doubly-fed wind farm transmission lines based on power modulus component in frequency domain. Firstly

by integrating the wind turbine model with the topology of the wind farm network and considering the different characteristics of voltages at the terminals of each connected wind turbine on the collector line

the frequency-domain modulus component of the short-circuit current sent by the wind farm is calculated. Consequently

a frequency domain equivalent model for the fault in a doubly-fed wind farm is established. On this basis

combined with the topology changes of the fault network inside and outside the area

we select a one-modulus component to construct a protection criterion for the sum of output power at both ends of the transmission line. Finally

simulation is conducted on the RT-LAB platform to validate the capability of the proposed method in this paper in accurately distinguishing faults inside and outside the zone. Additionally

it exhibits good resistance against transition resistance

remaining unaffected by fault location.

关键词

Keywords

references

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