摘要
风力发电机组偏航系统对风力控制方面效果欠佳,为提升风能利用率与发电效益,将决策树作为基本算法,构建风力发电机组偏航控制系统。整合信号采集、位置伺服和偏航传动等物理装置单元,建立偏航控制系统的硬件结构。基于决策树算法,综合考虑滞后性、机械损耗等影响因素,设计偏航控制规则提取、叶轮侧对风向及自动解缆等系统的软件控制程序。将系统应用于搭建的大型风力发电机组仿真模型中开展实验,通过对比风向角度呈线性递增过程中,控制前后偏航电机启动脉冲、发电机功率与风力机转速以及偏航角度等模拟数据发现,各项参数均与风向角度有较强关联性。偏航角度的曲线斜率无限接近1,与风向角度的等量线性关系显著。结果表明,该系统能提升机组的发电效率与偏航控制效率,能快速、精准地实现风力发电机组偏航控制。
The yaw control system of wind turbines is not effective in wind power control.In order to improve wind energy utilization and power generation efficiency,a decision tree is used as a basic algorithm to construct a yaw control system for wind turbines.Firstly,integrate physical device units such as signal acquisition,position servo,yaw transmission,and establish the hardware structure of the yaw control system.Based on a decision tree algorithm,software control programs for systems such as yaw control rule extraction,impeller side to wind direction,and automatic unwinding are designed,taking into account factors such as hysteresis and mechanical loss.Applying the system to the simulation model of a large wind turbine to conduct testing activities,by comparing the simulation data such as the yaw motor start pulse,generator power,wind turbine speed,and yaw angle before and after controlling the linear increase in wind direction angle,it is found that each parameter has a strong correlation with the wind direction angle.The curve slope of the yaw angle is infinitely close to 1,and has a significant linear relationship with the wind direction angle.The results show that the system can improve the power generation efficiency and yaw control efficiency of wind turbines,and can quickly and accurately achieve yaw control of wind turbines.
作者
何修成
覃东东
赵俊杰
田克琴
贺遇烗
HE Xiucheng;QIN Dongdong;ZHAO Junjie;TIAN Keqin;HE Yukai(State Power Investment Group Guangxi Xing’an Wind Power Co.,Ltd.,Guilin 541300,China)
出处
《机械与电子》
2024年第6期76-80,共5页
Machinery & Electronics
关键词
决策树算法
永磁同步电动机
最高增益率
风力发电机组
偏航控制
decision tree algorithm
permanent magnet synchronous motor
maximum gain rate
wind turbine
yaw control
