Wavelet-based time-domain double-fed induction generator differential protection

IF 4.2 3区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC Electric Power Systems Research Pub Date : 2025-03-19 DOI:10.1016/j.epsr.2025.111622

R.P. Medeiros , L.S. Barros , F.B. Costa , F.E.V. Taveiros

{"title":"Wavelet-based time-domain double-fed induction generator differential protection","authors":"R.P. Medeiros , L.S. Barros , F.B. Costa , F.E.V. Taveiros","doi":"10.1016/j.epsr.2025.111622","DOIUrl":null,"url":null,"abstract":"<div><div>Double-fed induction generators (DFIGs) must remain connected to the grid for a specific time during faults on the grid but must be immediately disconnected during short circuits inside of their protection zone, such as faults in the stator or rotor windings, to reduce potential damage risks. Currently, there is no reliable solution to discern whether a fault is external or internal to the DFIG protection zone. The differential protection appears suitable for this purpose, yet few studies have applied this protection to DFIGs. Additionally, there is insufficient evidence regarding the effectiveness of differential protection schemes in detecting faults in DFIG. This paper introduces a new algorithm for protecting the DFIG in the time domain using wavelets. The method utilizes high- and low-frequency components of the stator and rotor currents on the d- and q-axis to offer fast and dependable protection for the DFIG. The proposed approach was compared to existing differential protection regarding success rate and average response time across various events, including faults on the grid and turn-to-turn faults on the stator and rotor. The results indicate that the proposed protection outperforms the existing one and is the fastest in detecting turn-to-turn faults on the stator and rotor windings.</div></div>","PeriodicalId":50547,"journal":{"name":"Electric Power Systems Research","volume":"245 ","pages":"Article 111622"},"PeriodicalIF":4.2000,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Electric Power Systems Research","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0378779625002147","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}

引用次数: 0

Abstract

Double-fed induction generators (DFIGs) must remain connected to the grid for a specific time during faults on the grid but must be immediately disconnected during short circuits inside of their protection zone, such as faults in the stator or rotor windings, to reduce potential damage risks. Currently, there is no reliable solution to discern whether a fault is external or internal to the DFIG protection zone. The differential protection appears suitable for this purpose, yet few studies have applied this protection to DFIGs. Additionally, there is insufficient evidence regarding the effectiveness of differential protection schemes in detecting faults in DFIG. This paper introduces a new algorithm for protecting the DFIG in the time domain using wavelets. The method utilizes high- and low-frequency components of the stator and rotor currents on the d- and q-axis to offer fast and dependable protection for the DFIG. The proposed approach was compared to existing differential protection regarding success rate and average response time across various events, including faults on the grid and turn-to-turn faults on the stator and rotor. The results indicate that the proposed protection outperforms the existing one and is the fastest in detecting turn-to-turn faults on the stator and rotor windings.

查看原文

微信好友朋友圈 QQ好友复制链接

本刊更多论文

基于小波的时域双馈感应发电机差动保护

在电网发生故障时，双馈感应发电机（DFIGs）必须在特定时间内保持与电网的连接，但在其保护区内发生短路时，必须立即断开连接，例如定子或转子绕组发生故障，以减少潜在的损坏风险。目前，还没有可靠的解决方案来判断故障是在DFIG保护区域的外部还是内部。差动保护似乎适合于此目的，但很少有研究将这种保护应用于DFIGs。此外，关于差动保护方案在DFIG故障检测中的有效性证据不足。本文介绍了一种利用小波对DFIG进行时域保护的新算法。该方法利用定子和转子电流在d轴和q轴上的高频和低频分量，为DFIG提供快速可靠的保护。将该方法与现有的差动保护方法在各种事件（包括电网故障和定子和转子的匝间故障）中的成功率和平均响应时间进行了比较。结果表明，所提出的保护方法优于现有的保护方法，并且在检测定子和转子绕组匝间故障方面速度最快。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文去求助

来源期刊

Electric Power Systems Research 工程技术-工程：电子与电气

CiteScore

7.50

自引率

17.90%

发文量

963

审稿时长

3.8 months

期刊介绍： Electric Power Systems Research is an international medium for the publication of original papers concerned with the generation, transmission, distribution and utilization of electrical energy. The journal aims at presenting important results of work in this field, whether in the form of applied research, development of new procedures or components, orginal application of existing knowledge or new designapproaches. The scope of Electric Power Systems Research is broad, encompassing all aspects of electric power systems. The following list of topics is not intended to be exhaustive, but rather to indicate topics that fall within the journal purview. • Generation techniques ranging from advances in conventional electromechanical methods, through nuclear power generation, to renewable energy generation. • Transmission, spanning the broad area from UHV (ac and dc) to network operation and protection, line routing and design. • Substation work: equipment design, protection and control systems. • Distribution techniques, equipment development, and smart grids. • The utilization area from energy efficiency to distributed load levelling techniques. • Systems studies including control techniques, planning, optimization methods, stability, security assessment and insulation coordination.