基于灰色综合关联度的柔性直流配电网故障定位

徐岩; 胡紫琪; 董浩然; 马天祥

doi:10.19912/j.0254-0096.tynxb.2021-1416

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太阳能学报 ›› 2023, Vol. 44 ›› Issue (4) : 324-331. DOI: 10.19912/j.0254-0096.tynxb.2021-1416

基于灰色综合关联度的柔性直流配电网故障定位

徐岩¹, 胡紫琪¹, 董浩然¹, 马天祥²

作者信息 +

FAULT LOCATION BASED ON COMPREHENSIVE GREY RELATIONAL DEGREE FOR FLEXIBLE DC DISTRIBUTION NETWORK

Xu Yan¹, Hu Ziqi¹, Dong Haoran¹, Ma Tianxiang²

Author information +

文章历史 +

摘要

为解决柔性直流配电网对故障定位的准确性和快速性要求高的问题,提出一种基于灰色综合关联度的柔性直流配电网故障定位方法。利用灰色综合关联度分析线路首末线模行波差动电流波形的相似性,通过求解最佳时移来实现故障定位。在Matlab/Simulink中搭建六端柔性直流配电网模型进行仿真验证,结果表明该方法可完成全线各类故障的迅速准确定位,并有一定的抗过渡电阻能力,适用于采样频率较低的情况,具有较高的可靠性。

Abstract

In order to solve the problem of high accuracy and rapidity requirements for fault location in flexible DC distribution networks, a fault location method for flexible DC distribution network based on grey relational degree is proposed. The similarity of the first and last line mode traveling wave differential current waveforms is analyzed using grey relational degree, and the fault location is achieved by solving the optimal time shift. Finally, a six-terminal flexible DC distribution network model is built in Matlab/Simulink for simulation and validation, showing that the method can complete the rapid and accurate location of all types of faults on the whole line, and has a certain resistance to transition resistance, suitable for the case of low sampling frequency, and has high reliability.

导出引用

徐岩, 胡紫琪, 董浩然, 马天祥. 基于灰色综合关联度的柔性直流配电网故障定位[J]. 太阳能学报. 2023, 44(4): 324-331 https://doi.org/10.19912/j.0254-0096.tynxb.2021-1416

Xu Yan, Hu Ziqi, Dong Haoran, Ma Tianxiang. FAULT LOCATION BASED ON COMPREHENSIVE GREY RELATIONAL DEGREE FOR FLEXIBLE DC DISTRIBUTION NETWORK[J]. Acta Energiae Solaris Sinica. 2023, 44(4): 324-331 https://doi.org/10.19912/j.0254-0096.tynxb.2021-1416

中图分类号： TM73

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