VSCF双馈风力发电最大功率跟踪控制

Control of Maximum Power Point Tracking of VSCF Double-fed Wind Generation

为充分有效地利用风能,分析了风力机最大风能捕获机理和双馈电机数学模型,研究了定子电压定向下的功率外环及电流内环双闭环最大功率跟踪及变速恒频(VSCF)控制策略。在风速阶跃变化下,搭建了10 kW可实时监控式双馈风力发电实验平台,并进行了实验验证。实验结果表明该控制策略能快速准确控制风力发电系统进行最大功率跟踪及VSCF控制。

To utilize the wind energy fully, the mechanism of wind turbine capture maximum wind energy and the mathematical model of doubly_fed generator are analyzed.The controlling strategy of maximum power tracking and variable speed constant frequency（VSCF） under stator voltage oriented are studied.Experiment is carried out on a 10 kW monitoring-able doubly_fed wind power generation experiment platform under step wind speed.Experimental results show that the control strategy can control the wind power generation system for maximum power tracking and VSCF quickly and accurately.