SMES Based Reconfigured Converter Architecture for DFIG to Enhance FRT and Grid Forming Capability

IF 1.7 3区物理与天体物理 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Transactions on Applied Superconductivity Pub Date : 2024-09-18 DOI:10.1109/TASC.2024.3463257

Donghui Song;Zixuan Zheng;Jie Ren;Changsong Li;Qi Xie

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.

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基于 SMES 的 DFIG 重构变流器架构可增强故障穿越和电网形成能力

基于电网成形控制（GFM）的风力发电场可支持以可再生能源为主的电力系统的安全稳定运行。然而，基于 GFM 的双馈感应发电机（DFIG）在穿越严重电压故障时存在困难。而且它们的电网形成能力受到变流器功率储备和容量的限制。本文提出了一种用于 DFIG 的重构变流器架构，其直流母线中集成了 SMES。正常运行时，DFIG 采用 GFM 策略进行一次频率调节。如果 DFIG 的频率调节能力不足，SMES 会通过储能侧变流器（ESC）输出有功功率，将频率保持在指定的安全范围内。当电压故障发生时，SMES 通过 ESC 输出动态无功电流以支持电压恢复。仿真结果表明，所提出的架构和策略可有效增强 DFIG 的 GFM 和电压穿越能力。

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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来源期刊

IEEE Transactions on Applied Superconductivity 工程技术-工程：电子与电气

CiteScore

3.50

自引率

33.30%

发文量

650

审稿时长

2.3 months

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.