电气传动2019，Vol.49Issue(4)：78-82,96,6.DOI:10.19457/j.1001-2095.dqcd18487
风电机组变桨系统无位置传感器的研究
Research on Position Sensorless of Variable Pitch System for Wind Turbine
摘要
Abstract
The installation and maintenance of position sensor is difficult in the wind turbine pitch systems,so the sensorless control is a major trend,which can also reduce the system cost. Based on the traditional three-closed-loop (position/speed/current loop)pitch system,an improved model reference adaptive system(MRAS)sensorless technology was introduced,and the sliding mode variable structure was used to replace the traditional MRAS's PI regulation, which increased the stability and reliability of the system. The simulation results show that this scheme can accurately estimate the position and speed for the rotor of the permanent magnet motor,and realize the fast response and follow the pitch angle given by the main control system. The introduction of sensorless technology in the variable pitch system is completely feasible.关键词
变桨系统/模型参考自适应系统/滑模变结构/无位置传感器Key words
variable pitch system/model reference adaptive system(MRAS)/sliding mode variable structure/sensorless分类
信息技术与安全科学引用本文复制引用
韩维敏,文金龙,刘星平..风电机组变桨系统无位置传感器的研究[J].电气传动,2019,49(4):78-82,96,6.基金项目
湖南省教育厅项目(17K027) （17K027）
