【作者】 刘欣然；

【导师】 杨锡运；

【作者基本信息】 华北电力大学（北京） ， 控制理论与控制工程， 2008， 硕士

【摘要】 由于风能具有能量密度低、随机性和不稳定性等特点,风力发电机组是复杂多变量非线性不确定系统,因此,控制技术是机组安全高效运行的关键。模糊滑模变结构控制器具有响应快、鲁棒性好、设计实现方便等优点,已被逐步应用于很多工程领域。本文在对风力发电系统的数学模型和控制理论进行深入研究的基础上,应用模糊滑模变结构控制理论,分别设计出积分模糊滑模控制器、自适应模糊滑模控制器和积分自适应模糊滑模控制器。所提出的三种控制器有力克服了系统的参数变化和外界扰动的不良影响,实现具有一定自适应能力的高性能风力发电系统控制。仿真结果显示所提出的控制器具有较强的鲁棒性和良好的跟踪性能。更多还原

【Abstract】 Control is crucial to the efficiency and reliability of wind turbines. Wind energy has lower density, instability and randomicity. Wind turbines have strong nonlinear multivariable with many uncertain factors and disturbances. Fuzzy sliding mode variable structure controller has been applied gradually in many fields because of its advantage of robust and easy realization. Based on the deep research on the wind turbine power system mathematics model and control theory, in order to overcome the blight caused by parameter variant and outside disturbance, three kinds of controllers including of integral fuzzy sliding mode controller, adaptive fuzzy sliding mode controller and integral adaptive fuzzy sliding mode controller are proposed respectively. These proposed controllers are adopted to realize high performance wind turbine system with adaptation. Simulation results indicate that these control approaches are robust and improve tracking accuracy considerably.更多还原