Lyapunov-Designed Super-Twisting Sliding Mode Control for Wind Energy Conversion Optimization
Lyapunov-Designed Super-Twisting Sliding Mode Control for Wind Energy Conversion Optimization
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DOI：
10.1109/tie.2012.2188256
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发表时间：
2013-02
影响因子：
7.7
通讯作者：
C. Evangelista;P. Puleston;F. Valenciaga;L. Fridman
中科院分区：
文献类型：
--
作者：
C. Evangelista;P. Puleston;F. Valenciaga;L. Fridman
本文探索了一种自适应二阶滑模控制策略，以最大限度地提高风能转换系统(WECS)的发电量，同时降低轴上的机械应力。这种策略成功地处理了风速的随机性质、WECS的内在非线性行为以及作用于系统的模型不确定性和外部扰动的存在。综合自适应控制器是由可变增益的超扭曲(ST)算法的改进版本设计的。通过大量的计算机辅助仿真，证明了所提出的策略的适用性，该仿真采用了模拟实际运行条件的系统的综合模型，即考虑了参数的变化并包括外部扰动。此外，还设计了基于传统ST算法的二次控制器，并进行了仿真。为了建立一个比较框架，对结果进行了介绍和讨论。
This work explores an adaptive second-order sliding mode control strategy to maximize the energy production of a wind energy conversion system (WECS) simultaneously reducing the mechanical stress on the shaft. Such strategy successfully deals with the random nature of wind speed, the intrinsic nonlinear behavior of the WECS, and the presence of model uncertainties and external perturbations acting on the system. The synthesized adaptive controller is designed from a modified version of the super-twisting (ST) algorithm with variable gains. The suitability of the proposed strategy is proved by extensive computer-aided simulations employing a comprehensive model of the system emulating realistic conditions of operation, i.e., considering variations in the parameters and including external disturbances. Additionally, a second controller based on the traditional ST algorithm is also designed and simulated. Results are presented and discussed in order to establish a comparison framework.