报告详情
A Fault Ride-Through Strategy under Asymmetrical Grid Faults for Grid-Forming Converters Considering the Power Angle Deviation
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更新：2025-07-31 09:23:41 浏览：38次
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摘要
In the practical grid-connected operation of grid-forming converters, to adapt to the reduction of positive-sequence voltage components and the increase of negative-sequence voltage components caused by asymmetrical grid faults, a novel fault ride-through strategy is proposed in this paper. The proposed strategy deploys a second-order generalized integrator to extract the positive and negative sequence components precisely. It also deploys a negative-sequence current control loop to suppress negative-sequence components of the output current. Furthermore, the proposed strategy incorporates improvements in the power control loop, aiming to achieve power angle deviation suppression, inrush current suppression, and fast positive-sequence voltage support during asymmetrical grid faults. Finally, the effectiveness of the proposed strategy is validated through an experimental platform under different converter output conditions.
关键词
grid-forming,fault ride-through,asymmetrical grid fault,power angle,negative sequence current
报告人
Chenxi Bai
Assistant engineer Chengdu Power Supply Company；State Grid Sichuan Electric Power Corporation稿件作者
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重要日期
-
会议日期
11月07日
2025
至11月09日
2025
-
09月10日 2025
初稿截稿日期
主办单位
IEEE西南交通大学IAS学生分会
承办单位
西南交通大学电气工程学院
SPACI车网关系研究室
四川大学电力系统稳定与高压直流输电研究团队
SPACI车网关系研究室
四川大学电力系统稳定与高压直流输电研究团队
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