Wind energy has made more inroads in renewable power generation due to environmental impact of conventional energy sources. The high penetration of grid connected wind energy has emerged as a recent trend in many countries. On the other hand, the problem of power generation loss due to the grid fault also arisen. The recent technological advancement suggests the importance of low voltage ride through (LVRT) in wind energy conversion system (WECS). However, LVRT is a technique in making uninterrupted connectivity of WECS in the presence of grid fault. This paper presents the state of the art of LVRT capabilities of various wind turbine generators using FACTS devices and different converter controllers. Also, the main challenging issues and different approaching strategies in LVRT are addressed. Finally, extracting all important features from distinct papers, new dimension of LVRT is presented for the power quality and power generation loss problems.

中文翻译：

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风力发电机的低压穿越能力的全面综述

由于常规能源对环境的影响，风能已在可再生能源发电方面取得了更多进展。并网风能的高普及率已成为许多国家的近期趋势。另一方面，还出现由于电网故障而导致的发电损失的问题。最近的技术进步表明，低电压穿越（LVRT）在风能转换系统（WECS）中的重要性。但是，LVRT是一种在存在电网故障的情况下实现WECS不间断连接的技术。本文介绍了使用FACTS设备和不同的转换器控制器的各种风力发电机的LVRT功能的技术水平。此外，还解决了LVRT中的主要挑战性问题和不同的应对策略。最后，