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Sliding-Mode Control for a DFIG-based Wind Turbine under Unbalanced Voltage

机译：不平衡电压下基于DFIG的风力涡轮机的滑模控制

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摘要

This paper reports a first-order sliding-mode control (1-SMC) design for controlling the doubly-fed induction generator (DFIG)-based wind turbine's rotor-side power converter. The design is particularly focused on keeping the generator successfully in operation under unbalanced grid voltage conditions, as today's grid codes require. Aside from controlling the stator-side active and reactive powers' average value, the rotor-side converter is commanded so as to remove the fluctuations affecting the electromagnetic torque and the reactive power during unbalanced voltage. The paper aims to put forward the bases of the proposed design together with the described algorithm's stability proof. Finally, the appropriateness of the sliding-mode control to deal with the aforementioned disturbed scenarios is supported by means of simulation results.
机译：本文报道了一种用于控制双馈电机（DFIG）的风力涡轮机转子侧功率转换器的一级滑模控制（1-SMC）设计。设计专注于在不平衡电网电压条件下成功保持发电机，因为今天的网格码要求。除了控制定子侧有源和无功功率的平均值之外，指令转子侧转换器，以便除去影响电磁扭矩的波动和在不平衡电压期间的电动功率。本文旨在将所提出的设计的基础与所描述的算法的稳定性证明提出。最后，通过仿真结果支持将滑模控件的适当性与上述干扰情景负责。

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