To enhance the Low-voltage Ride Through (LVRT) capability of large-scale centralized wind farms is essential for the safety of the wind farm and the security of the power system. However, the LVRT capability enhancement coordinating the control and protection of individual wind generators merits consideration. To contribute in this way, a Coordinated Sequential Control (CSC) strategy is proposed in this manuscript. Regarding different voltage disturbance scenarios, the goal of voltage control is determined in real-time. To keep as many wind turbines operating grid-connected as possible, a multi-staged coordination strategy is set according to the critical time to ride through the fault. The reactive power control and the shedding of the wind turbines are coordinated in the three stages of the CSC. According to the simulation results, more wind turbines can be kept grid-connected by using the proposed control strategy. Comparison studies are made among several types of coordinating strategies, emphasizing the advantages of the proposed method in terms of both validation and real-time performance.

中文翻译：

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大型基于DFIG的风电场的单个发电机的协调顺序控制

增强大型集中式风电场的低压穿越（LVRT）能力对于风电场的安全和电力系统的安全至关重要。但是，值得考虑的是增强LVRT能力以协调各个风力发电机的控制和保护。为了以这种方式做出贡献，本文提出了一种协调顺序控制（CSC）策略。对于不同的电压干扰情况，电压控制的目标是实时确定的。为了使尽可能多的风力涡轮机并网运行，根据通过故障的关键时间设置了多阶段协调策略。在CSC的三个阶段中，对无功功率控制和风力涡轮机的排放进行协调。根据仿真结果，通过使用建议的控制策略，可以使更多的风力涡轮机保持并网。在几种类型的协调策略之间进行了比较研究，强调了所提方法在验证和实时性能方面的优势。