无刷双馈电机转差率问题探讨  

Study on Slip of Brushless Doubly-Fed Machine

作　　者：杨俊华[1] 吴捷[2] 陈斌 

机构地区：[1]广东工业大学,广州510095 [2]华南理工大学,广州510641 [3]广州电机厂,广州511495

出　　处：《中小型电机》2005年第1期20-23,共4页S&M Electric Machines

基　　金：广东省科技计划项目(A10502004);广东省"十五"科技计划重大专项(A1050401)

摘　　要：　　无刷双馈电机数学模型的推导、相量图和等效电路的绘制,都需通 过转差率进行绕组间的频率折算。无刷双馈电机中共有三个转差率:①转子绕 组对定子功率绕组旋转磁场的转差率sp,②转子绕组对定子控制绕组旋转磁场 的转差率sc,③定子控制绕组旋转磁场对定子功率绕组旋转磁场的转差率s。这 些转差率的计算方法在众多文献中的阐述与推导均令人费解,物理意义不甚明 了。文章首先从普通异步电机出发,推导并给出了无刷双馈电机三个转差率的 明确定义和简单计算方法。To derive model of brushless doubly-fed machine and to draw the phasor diagram and equivalent circuit, the parameters of control winding as well as rotor winding must be referred to power control winding. Three slips exist in brushless doubly-fed machine:①slip s p between the rotating magnetic fields of rotor winding and stator power winding,②slip s c between the rotating magnetic fields of rotor winding and stator control winding,③slip s between the rotating magnetic fields of stator power winding and control winding. The statement and reduction of calculation methods about these slips are unintelligible in many references. This paper deduces and gives clear definition and simple calculation method of three slips of brushless doubly-fed machine starting from general induction machine first.

关 键 词：无刷双馈电机 数学模型 等效电路 转差率 交流电机 定子槽 绕组 定子 

分 类 号：TM34[电气工程—电机]