摘要
风电机组传统的最大功率点跟踪(maximumpower point tracking,MPPT)控制策略是基于最佳叶尖速比的转矩控制,由于跟踪前后最佳桨距角不变,因此没有考虑跟踪过程中对桨距角的调节。提出一种基于最优跟踪路径的改进MPPT控制策略,在传统转矩控制基础上,增加辅助变桨控制,通过对跟踪路径的优化,实现在MPPT跟踪过程中功率输出最大化。对NACA0012翼型1.5MW风电机组的算例分析表明,在风速阶跃减小、阶跃增大和湍流风3种典型工况中,所提出的基于最优跟踪路径的改进MPPT控制均使机组输出功率得到一定程度提高。
Traditional Maximum Power Point Tracking(MPPT)control of wind turbine is based on optimal tip speed ratio by torque control,but without considering the effect of the pitch angle on the output power during tracking.An improved MPPT control based on optimal tracking path was proposed.The pitch control was added to the traditional torque control.Maximize the output power during the process of the MPPT by optimizing the tracking path.The example of the NACA0012 airfoil 1.5 MW wind turbine shows that the output power is improved in the condition of step reduction,step increase and turbulent wind respectively of the improved MPPT control.
作者
赵骞
邵一川
姚兴佳
郭庆鼎
厉伟
ZHAO Qian;SHAO Yichuan;YAO Xingjia;GUO Qingding;LI Wei(dept.of electrical engineering,shenyang university of technology,shenyang 110870,liaoning province,china;dept,of computer,shenyang university,shenyang 110004,liaoning province,china)
出处
《中国电机工程学报》
EI
CSCD
北大核心
2020年第1期282-289,共8页
Proceedings of the CSEE
基金
中国博士后基金项目(2016M601332)
辽宁省自然科学基金(201601217)~~
关键词
最优跟踪路径
最大功率点跟踪
风能利用系数
叶素动量理论
风电机组
optimal tracking path
maximum power point tracking
power coefficient
blade element momentum theory
wind turbine
