Abstract In order to mitigate over-frequency events in the power systems, this paper proposes a new variable gain based control strategy to maximize the frequency support while minimizing impacts to the overall energy production for a wind power plant (WPP). Because of different wind conditions, the energy production by each WT is not equally compromised by adaptively adjusting the droop gains according to the different rotor speeds so that minimal reduction of energy production can be ensured. The control performance was fully investigated in a doubly fed induction generator (DFIG) based WPP and the results clearly indicate the proposed variable droop gain scheme can harness more wind energy than the conventional same droop gain scheme while providing similar frequency support.

中文翻译：

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用于过频支持的双馈风电场变增益控制方案

摘要 为了减轻电力系统中的过频事件，本文提出了一种新的基于可变增益的控制策略，以最大化频率支持，同时最小化对风力发电厂 (WPP) 整体能源生产的影响。由于不同的风力条件，通过根据不同的转子速度自适应地调整下垂增益，每个 WT 的能量产生不会受到同等的影响，从而可以确保能量产生的最小减少。在基于双馈感应发电机 (DFIG) 的 WPP 中对控制性能进行了全面研究，结果清楚地表明，所提出的可变下垂增益方案可以利用比传统的相同下垂增益方案更多的风能，同时提供类似的频率支持。