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首页> 外文期刊>IEEE Transactions on Energy Conversion >Adaptive Power Capture Control of Variable-Speed Wind Energy Conversion Systems With Guaranteed Transient and Steady-State Performance
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Adaptive Power Capture Control of Variable-Speed Wind Energy Conversion Systems With Guaranteed Transient and Steady-State Performance

机译：具有瞬态和稳态性能的变速风能转换系统的自适应功率捕获控制

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摘要

This paper deals with the power capture control of variable-speed wind energy conversion systems. The control objective is to optimize the capture of wind energy by tracking the desired power output. Arbitrary steady-state performance is achieved in the sense that the tracking error is guaranteed to converge to any predefined small set. In addition, to maximize the wind energy capture, transient performance is enhanced such that the convergence rate can be larger than an arbitrary value, which further limits the maximum overshoot. First, an adaptive controller is designed for the case where known aerodynamic torque is assumed. Then, by utilizing an online approximator to estimate the uncertain aerodynamics, the need for the exact knowledge of the aerodynamic torque is waived to imitate the practical experience. With the aid of a novel output error transformation technique, both of the proposed controllers are capable of shaping the system performance arbitrarily on transient and steady-state stages. Meanwhile, it is also proved that all the signals in the closed-loop system are bounded via Lyapunov synthesis. Finally, the feasibility of the proposed controllers is demonstrated on an $hbox{1.5}$-MW three-blade wind turbine using the FAST (Fatigue, Aerodynamics, Structures, and Turbulence) code developed by the National Renewable Energy Laboratory.
机译：本文涉及变速风能转换系统的功率捕获控制。控制目标是通过跟踪所需的功率输出来优化风能的捕获。在保证跟踪误差收敛到任何预定义的小集合的意义上，可以实现任意稳态性能。另外，为了最大化风能的捕获，增强了瞬态性能，使得收敛速度可以大于任意值，这进一步限制了最大过冲。首先，针对假定已知空气动力学转矩的情况设计自适应控制器。然后，通过使用在线逼近器来估算不确定的空气动力学，无需精确了解空气动力学扭矩就可以模仿实际经验。借助于一种新颖的输出误差转换技术，这两个建议的控制器都能够在瞬态和稳态阶段任意调整系统性能。同时，还证明了闭环系统中的所有信号都是通过李雅普诺夫综合法来定界的。最后，在使用以下公式的三叶片风力涡轮机的 $ hbox {1.5} $ -MW风力发电机上证明了所提出控制器的可行性。美国国家可再生能源实验室制定的FAST（疲劳，空气动力学，结构和湍流）规范。

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