A New Fault Ride-through Strategy for Doubly Fed Wind-Power Induction Generator

A. Kasem, E. El-Saadany, H. El-Tamaly, M. Wahab
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引用次数: 13

Abstract

Withstanding grid faults becomes an obligation for the bulk wind generation units connected to the transmission network and it is highly desired for distribution wind generators. In this paper, a proposed scheme is implemented for DFIG to keep it operating during transient grid faults. Challenges imposed on the generator configuration and the control during the fault and recovering periods are presented. A comprehensive time domain model for the DFIG with the decoupled dq controller is implemented using Matlab/Simulink software. Intensive simulation results are discussed to ensure the validity and feasibility of the proposed fault ride through technique. The scheme protects the DFIG components, fulfills the grid code requirements, and optimizes the hardware added to the generator.
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双馈风力发电机故障穿越新策略
抗电网故障已成为接入输电网的大型风力发电机组的一项义务,对配电网风力发电机组也提出了更高的要求。本文提出了一种在电网暂态故障时保持DFIG运行的方案。对发电机的配置和故障恢复期间的控制提出了挑战。利用Matlab/Simulink软件建立了带解耦dq控制器的DFIG综合时域模型。对仿真结果进行了深入的讨论,以确保所提出的断层穿越技术的有效性和可行性。该方案保护了DFIG组件,满足了电网规范的要求,并优化了发电机附加的硬件。
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