摘要
在分析了永磁同步发电机数学模型的基础上,以实现额定风速下风能的最大捕获为目标,采用滑模控制和模糊控制相结合的方法,提出了一种新的自适应模糊切换控制方法。该方法使得风电系统在额定风速以下时,能够根据风速的变化实时地改变电机转速,从而获得最佳叶尖速比,实现最大功率追踪的目标。仿真结果表明,自适应模糊切换控制方法可以有效实现额定风速下的最大风能捕获,同时弥补非线性给系统带来的影响,提高了系统的鲁棒性和稳定性。
The mathematical model of permanent magnet synchronous generator is analyzed in this paper. In order to achieve the maximum wind energy tracking under the rated wind speed, the method of sliding- mode control and fuzzy control combining is adopted. Based on this, a new adaptive fuzzy switching control method is presented. To achieve the goal of maximum-power tracking, the motor speed is changed with the wind speed to gain optimum tip-speed-ratio under the rated wind speed by the method. The simulation results show that the adaptive fuzzy switching control method can effectively achieve the maximum power capture under the rated wind speed, compensate for the nonlinear impact to the system, and improve the robustness and stability of the system.
出处
《模糊系统与数学》
CSCD
北大核心
2014年第1期129-137,共9页
Fuzzy Systems and Mathematics
基金
河北省自然科学基金资助项目(F2012203088)
关键词
永磁同步发电机PMSG
模糊控制
滑模控制
最大风能捕获
Permanent Magnet Synchronous Generator （PMSG）
Fuzzy Control
Sliding-mode Control
Maximum Wind Energy Tracking
