Spiral Vector Modeling of Brushless Doubly-fed Induction Machines with Short-circuited Rotor Windings

作     者：Peng Han Ming Cheng Zhiwei Zhang Peng Peng 

作者机构：AnsysInc.San JoseCA 95134USA School of Electrical EngineeringSoutheast UniversityNanjing 210096China Department of ECEThe Ohio State UniversityColumbusOH 43210USA Milwaukee Electric Tool CorporationMilwaukeeWI 53005USA 

出 版 物：《Chinese Journal of Electrical Engineering》 (中国电气工程学报（英文）)

年 卷 期：2021年第7卷第3期

页      面：29-41页

核心收录：

学科分类：080801[工学-电机与电器] 0808[工学-电气工程] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 0807[工学-动力工程及工程热物理] 0802[工学-机械工程] 0811[工学-控制科学与工程] 

基　　金：Department of Energy Technology 

主　　题：AC machine brushless machine modeling performance evaluation synchronous machine 

摘      要：A unified spiral vector model is presented that can be used to assist the finite element method-based performance analysis of brushless doubly-fed induction machines with various short-circuited rotor windings.Specifically,magnet-free brushless doubly-fed induction machines working in doubly-fed or singly-fed synchronous mode are investigated.A dynamic model in spiral vector notation is developed,based on which the torque-angle and power-angle characteristics are derived.It is shown that the investigated brushless machines are equivalent to a traditional non-salient-pole synchronous machine with brushes.By introducing a conversion factor,they can also be analyzed with methods similar to the conventional phasor theory.A comparison is made between the brushless doubly-fed induction machine and non-salient-pole wound-field synchronous machine with brushes,revealing that the performance of the brushless machine degrades faster when the laminated core is saturated.A scaled-down prototype is tested to validate the effectiveness of the theoretical analysis.