风力机变桨电机无速度传感器控制系统研究  

Research on Speed Sensorless Control System of Wind Turbine Variable-pitch Motor

作　　者：本柏忠 侯力[2] 张丹[1,2] 徐晓惠[3] 韩泽俊 BEN Bozhong;HOU Li;ZHANG Dan;XU Xiaohui;HAN Zejun(Educational Administration Office,Sichuan Engineering Technical College,Deyang 618000,Sichuan,China;School of Manufacturing Science and Engineering,Sichuan University,Chengdu 610065,Sichuan,China;School of Automobile and Transportation,Xihua University,Chengdu 610039,Sichuan,China)

机构地区：[1]四川工程职业技术学院教务处,四川德阳618000 [2]四川大学制造科学与工程学院,四川成都610065 [3]西华大学汽车与交通学院,四川成都610039

出　　处：《电气传动》2019年第11期70-75,共6页Electric Drive

基　　金：国家自然科学基金项目（11402214）

摘　　要：随着风电机组功率等级的增加,变速变桨发电机组已成为风力发电技术发展的主流。为进一步提高变桨距风力机运行的稳定性和不断优化输出功率,解决变桨电机转速传感器易受外部环境影响致使系统可靠性严重降低等问题,提出将发电机转速变化情况作为变桨距执行机构工作的判断标准,进一步提出了变桨电机无传感器矢量控制策略,设计了一种模型参考自适应(MRAS)转速辨识器,用于变桨电机无传感矢量控制系统的转速辨识。仿真实验表明,提出的变桨电机无传感器矢量控制策略能够达到设计的预期目标,为其在实际风场的应用提供了理论基础。With the increase of wind turbine power rating,variable-speed variable-pitch(VSVP)wind turbine has become the mainstream of wind power generation technology. In order to further improve the VSVP wind turbine′s stability,optimize its output power continuously,and to solve the problem that speed sensor of pitch drive motor is easily affected by external environment which reduce the system reliability,the generator speed change was taken as the judging standard of variable-pitch executing agency,and then sensorless vector control strategy of the pitch drive motor was further proposed. A model reference adaptive system(MRAS)speed identification was designed for speed identification of pitch motor sensorless vector control system. The simulation results show that the sensorless vector control strategy of the pitch motor proposed can achieve expected design goals and provide a theoretical basis for its application in actual wind field.

关 键 词：风力发电机组 变桨控制 异步电动机 无传感控制 矢量控制 

分 类 号：TK89[动力工程及工程热物理—流体机械及工程]