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首页> 外文会议>International Conference on Sciences and Techniques of Automatic Control and Computer Engineering >A comparative study of PI and Sliding mode controllers for autonomous wind energy conversion system based on DFIG
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A comparative study of PI and Sliding mode controllers for autonomous wind energy conversion system based on DFIG

机译：基于DFIG的自主风能转换系统PI与滑模控制器的比较研究。

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Nowadays, the electricity demand in remote areas is increasing. Among a variety kinds of renewable energy sources, wind energy is very used. This type of energy presents a realistic alternative for power production. Therefore, to ensure optimal use of this energy, different control strategies are well studied in the literature. In this work, an autonomous wind energy conversion system based on a double fed induction generator (DFIG) is studied and modeled. The main goal of this work is to maintain the stator voltage and frequency to their reference values (220V, 50Hz) under variable mechanical speed and load variations. To achieve this purpose, two types of controllers are studied and compared: The vector control (PI) and the sliding mode controllers. Simulation results demonstrate the high precision and the robustness of the sliding mode controller compared with the vector controller (PI) mainly in case of wind speed variations and load demand changes.
机译：如今，偏远地区的电力需求正在增加。在各种各样的可再生能源中，风能被非常广泛地使用。这种能源为发电提供了一种现实的选择。因此，为了确保最佳地利用这种能量，文献中对不同的控制策略进行了很好的研究。在这项工作中，对基于双馈感应发电机（DFIG）的自主风能转换系统进行了研究和建模。这项工作的主要目的是在可变的机械速度和负载变化下将定子电压和频率保持在参考值（220V，50Hz）。为了实现此目的，研究并比较了两种类型的控制器：矢量控制（PI）和滑模控制器。仿真结果表明，与矢量控制器（PI）相比，主要在风速变化和负载需求变化的情况下，滑模控制器具有较高的精度和鲁棒性。

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