同步电机异步-同步起动过程分析  

ANALYSIS OF PARTIAL FREQUENCY STARTUP PROCESS OF SYNCHRONOUS MACHINE

作　　者：戈宝军[1] 李波[2] 李发海[1] 赵洪[3] 

机构地区：[1]清华大学电机系,北京市海淀区150040 [2]哈尔滨工业大学电气工程及自动化学院,黑龙江省哈尔滨市150001 [3]哈尔滨理工大学电气与电子工程学院,黑龙江省哈尔滨市150040

出　　处：《中国电机工程学报》2005年第5期93-97,共5页Proceedings of the CSEE

基　　金：国家自然科学基金项目(50077004);黑龙江省自然科学基金项目(E9819)。~~

摘　　要：根据同步电机异步–同步起动的实际过程,详细推导了异步–同步起动的双机耦合数学模型,利用派克方程建立了分析同步电机半同步起动过程的状态方程。在此基础上,对影响电机起动成功与否的几个重要因素,如:发电机的初始速度、外加驱动转矩、发电机和电动机的励磁电流以及连接线路阻抗等进行了详细分析,并给出了起动过程中发电机和电动机的转速以及转矩的变化规律。仿真分析与实验结果吻合较好。In this paper the double machines coupling model of partial frequency starting is derived in detail on the basis of the actual partial frequency starting process of synchronous machine. State equations are established on Park equations in order to analyze the partial frequency starting process. The effects during the starting process such as initial speed of the generator, mechanical torque of the generator, field current of the generator and the motor, and impedance of the interconnection cables between the generator and the motor are analyzed in detail. The variation rules of rotation speed and electromagnetic torque of the generator and the motor in starting process are given. The simulation results agree well with the experimental results.

关 键 词：同步电机 发电机 起动过程 电动机 励磁电流 转矩 阻抗 异步 驱动 耦合 

分 类 号：TM341[电气工程—电机] TM343