电测与仪表2018，Vol.55Issue(1)：65-71,77,8.
风电变桨系统模型简化及运行特性比较
Simplification of wind turbine pitch system and comparison of operating characteristics
摘要
Abstract
Due to the variable parameters of the detailed model for the wind turbine pitch drive system affect the simulation speed,while the conventional first-order simplified model could not reflect the dynamic characteristics properly,based on the method of transfer function,an improved simplified transfer function model considering both characteristics and parameters is proposed in this paper.Firstly,this paper described the basic principle and structure of electric pitch system,and a detailed dynamic mathematical model based on rotor flux orientation of squirrel cage induction motor was established.Secondly,based on the method of transfer function,the speed loop and torque loop were simplified,and an improved simplified model considering the dynamic characteristics of pitch system was deduced and compared its frequency characteristics.Finally,this paper established a detailed,simplified and improved simplified pitch system model,and compared the pitch angle tracking characteristics and anti-load capacity of the different models,and then,the experimental platform of pitch drive system was established to verify.The results show that the improved simplified model has the features of considering both the dynamic characteristics of detailed model and less parameters of conventional simplified model;what is more,this paper summarized that different models can be applied to different situations.关键词
风电机组/电动变桨系统/数学模型/简化模型/运行特性Key words
wind turbine/electric pitch system/mathematical model/simplified model/operating characteristics分类
信息技术与安全科学引用本文复制引用
黄樟坚,李辉,刘行中,王坤,谢翔杰,王杰..风电变桨系统模型简化及运行特性比较[J].电测与仪表,2018,55(1):65-71,77,8.基金项目
国家自然科学基金资助项目(51675354) （51675354）
重庆市科技攻关计划项目(CSTC,2015ZDCY-ZTZX0171) （CSTC,2015ZDCY-ZTZX0171）
