海上风电场高压直流电缆系统故障定位的智能估计方法

IF 1.3 4区工程技术 Q3 CONSTRUCTION & BUILDING TECHNOLOGY

Wind and Structures Pub Date : 2023-08-31 DOI:10.3390/wind3030021

S.H. Ashrafi Niaki, Jalal Sahebkar Farkhani, Zhe Chen, B. Bak‐Jensen, S. Hu

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引用次数: 0

摘要

大型和偏远的海上风电场(owf)通常使用电压源转换器(VSC)系统将电力传输到主电网。海底高压直流(HVDC)电缆是常用的传输链路。由于高压直流电缆容易发生绝缘击穿，因此故障定位是这些系统中的一个主要问题。准确的故障定位可以显著降低海底高压直流电缆在多终端网络中的维修成本。本文提出了一种准确定位直流故障的新方法。通过对电缆外护层电压信号的新特征提取和训练后的人工神经网络进行故障定位。在电力系统计算机辅助设计(PSCAD)环境下对三端高压直流系统的仿真结果表明，所提出方法的最大百分比误差小于1%。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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An Intelligent Method for Fault Location Estimation in HVDC Cable Systems Connected to Offshore Wind Farms

Large and remote offshore wind farms (OWFs) usually use voltage source converter (VSC) systems to transmit electrical power to the main network. Submarine high-voltage direct current (HVDC) cables are commonly used as transmission links. As they are liable to insulation breakdown, fault location in the HVDC cables is a major issue in these systems. Exact fault location can significantly reduce the high cost of submarine HVDC cable repair in multi-terminal networks. In this paper, a novel method is presented to find the exact location of the DC faults. The fault location is calculated using extraction of new features from voltage signals of cables’ sheaths and a trained artificial neural network (ANN). The results obtained from a simulation of a three-terminal HVDC system in power systems computer-aided design (PSCAD) environment show that the maximum percentage error of the proposed method is less than 1%.

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来源期刊

Wind and Structures 工程技术-工程：土木

CiteScore

2.70

自引率

18.80%

发文量

审稿时长

>12 weeks

期刊介绍： The WIND AND STRUCTURES, An International Journal, aims at: - Major publication channel for research in the general area of wind and structural engineering, - Wider distribution at more affordable subscription rates; - Faster reviewing and publication for manuscripts submitted. The main theme of the Journal is the wind effects on structures. Areas covered by the journal include: Wind loads and structural response, Bluff-body aerodynamics, Computational method, Wind tunnel modeling, Local wind environment, Codes and regulations, Wind effects on large scale structures.