This paper details a nonlinear Sliding Mode Control (SMC) based Sub-Synchronous Resonance (SSR) mitigation method for Doubly Fed Induction Generator (DFIG) based wind turbines interconnected to series compensated transmission systems. The proposed method is used to control the rotor side converter to mitigate SSR while ensuring decoupled torque and reactive power control ability of the DFIG is maintained. The proposed method is implemented on the detailed DFIG wind turbine model provided in the RTDS platform for validation via simulations. Results obtained indicate the controller is successful at damping SSR when tested under varying compensation levels and wind speeds.

中文翻译：

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用于连接到串联补偿传输系统的基于 DFIG 的风力发电机的非线性 SSR 阻尼控制器

本文详细介绍了一种基于非线性滑模控制 (SMC) 的次同步谐振 (SSR) 缓解方法，用于与串联补偿传输系统互连的基于双馈感应发电机 (DFIG) 的风力涡轮机。所提出的方法用于控制转子侧变流器以减轻SSR，同时确保保持DFIG的解耦转矩和无功功率控制能力。所提出的方法在 RTDS 平台中提供的详细 DFIG 风力涡轮机模型上实施，以通过仿真进行验证。获得的结果表明，当在不同的补偿水平和风速下进行测试时，控制器在阻尼 SSR 方面是成功的。