无刷双馈电机数学模型的研究和分析  

Research and Analysis on Brushless Doubly Fed Machine Mathematical Models

作　　者：赵荣理[1] 王昕 张爱玲[1] 

机构地区：[1]太原理工大学,山西太原030024 [2]南车株洲电机有限公司,湖南株洲412000

出　　处：《微特电机》2013年第7期18-23,共6页Small & Special Electrical Machines

基　　金：国家自然科学基金资助项目(50877051)

摘　　要：针对目前使用较多的无刷双馈电机的两种数学模型,即转子速d-q模型和统一坐标系模型,在推导过程和应用方面做了研究和分析。两个模型的推导目的都是将多回路模型简化为两轴模型,但是由于对转子的不同处理方法和坐标变换时对坐标轴的不同定义导致得到的数学模型不同。相对于多回路模型,转子速d-q模型阶数大大减少,更适合控制策略的研究,但d轴和q轴分量却合不成矢量方程,导致其在理论分析中带来不便。统一坐标系模型是矢量方程,形式简洁,使用方便。其功率、控制绕组和转子电压、电流和磁链可以折算到功率或控制绕组的以任意速度旋转的坐标系上。该模型更适合用于无刷双馈电机的各种控制策略。对这两个模型的研究与分析为无刷双馈电机控制策略的研究提供了参考。For the two math models of brushless doubly fed machine in ues,rotor reference frame d-q model and unified reference frame d-q model,the developing process and using were studied and analysed.The aim of two models is to simplify multiple reference frame to two-axes reference frame.There are two differences which leading to difference results,one is method of handle rotot,the other is defination of coordinate transform frame.Relative to the multiple reference model,rotor reference frame d-q model order number greatly reduced and it is more adptive control strategies,but this model’s d axes component and q axes component don’t combined a vector,which brings difficulty in theoretical analysis.Unified reference frame d-q mode is vector equation,it’s description concision and convenient to use.In this model voltage,current,flux of power wind,control wind and rotor wind together can transform to arbitrary frame roting at any rate,the frame is either refered to power wind or refered to control wind.The model is more convenient for brusheless doubly fed machine control purpose.Studying and analysing two math models offer a reference for brushless doubly fed machine control strategies.

关 键 词：无刷双馈电机 数学模型 转子速d-q模型 阻抗矩阵 统一坐标系模型 

分 类 号：TM346[电气工程—电机]