{"title":"SMES Based Reconfigured Converter Architecture for DFIG to Enhance FRT and Grid Forming Capability","authors":"Donghui Song;Zixuan Zheng;Jie Ren;Changsong Li;Qi Xie","doi":"10.1109/TASC.2024.3463257","DOIUrl":null,"url":null,"abstract":"Grid forming control (GFM) based wind farms can support the safe and stable operation of power systems dominated by renewable energy. However, GFM based Doubly Fed Induction Generators (DFIGs) have difficulties in riding through serious voltage faults. And their grid forming ability is restricted by the power reserve and capacity of the converter. This paper proposes a reconfigured converter architecture for DFIG with SMES integrated into its DC bus. During normal operation, DFIG adopts the GFM strategy for primary frequency regulation. If the frequency modulation capacity of DFIG is inadequate, SMES outputs active power through an energy storage side converter (ESC) to keep the frequency within the specified safety range. When voltage faults occur, SMES outputs dynamic reactive current to support voltage recovery through ESC. The simulation results show that the proposed architecture and strategy can effectively enhance the GFM and voltage ride-through capability of DFIG.","PeriodicalId":13104,"journal":{"name":"IEEE Transactions on Applied Superconductivity","volume":"34 8","pages":"1-5"},"PeriodicalIF":1.7000,"publicationDate":"2024-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEEE Transactions on Applied Superconductivity","FirstCategoryId":"101","ListUrlMain":"https://ieeexplore.ieee.org/document/10682792/","RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
引用次数: 0
Abstract
Grid forming control (GFM) based wind farms can support the safe and stable operation of power systems dominated by renewable energy. However, GFM based Doubly Fed Induction Generators (DFIGs) have difficulties in riding through serious voltage faults. And their grid forming ability is restricted by the power reserve and capacity of the converter. This paper proposes a reconfigured converter architecture for DFIG with SMES integrated into its DC bus. During normal operation, DFIG adopts the GFM strategy for primary frequency regulation. If the frequency modulation capacity of DFIG is inadequate, SMES outputs active power through an energy storage side converter (ESC) to keep the frequency within the specified safety range. When voltage faults occur, SMES outputs dynamic reactive current to support voltage recovery through ESC. The simulation results show that the proposed architecture and strategy can effectively enhance the GFM and voltage ride-through capability of DFIG.
期刊介绍:
IEEE Transactions on Applied Superconductivity (TAS) contains articles on the applications of superconductivity and other relevant technology. Electronic applications include analog and digital circuits employing thin films and active devices such as Josephson junctions. Large scale applications include magnets for power applications such as motors and generators, for magnetic resonance, for accelerators, and cable applications such as power transmission.