基于Saber的交流励磁发电机励磁电源仿真研究  

Simulation study of exciter of AC excitation generator based on Saber

作　　者：赵淑娟[1] 贺晓蓉[2] 贺娟[2] 肖刚[3] 

机构地区：[1]重庆工业职业技术学院自动化系,重庆400040 [2]重庆工学院电子信息与自动化学院,重庆400050 [3]德阳电业局,四川德阳618000

出　　处：《电力系统保护与控制》2009年第10期89-92,共4页Power System Protection and Control

基　　金：重庆市教委科技研究基金项目(KJ070619)

摘　　要：根据交流励磁发电机系统对励磁变频器功率双向流动及输入和输出电流谐波的要求,提出采用矩阵式交-交变频器作为励磁电源。在Saber仿真软件平台下,分别以矩阵式交-交变频器、交-直-交、交-交变频器作为励磁电源对交流励磁发电机系统进行研究,仿真了三种变频器供电时发电机定、转子电流和感应电势及变频器输入电流波形,并作相应的谐波分析。证实了矩阵式变频器输入功率因数高,输入电流波形正弦性好,对电网的谐波污染较小,将可能成为交流励磁发电机理想的励磁电源。所作的研究工作,为交流励磁发电机的励磁系统工程设计提供了一定的理论参考依据。According to the requirement of alternating current excitation generator （ACEG）, the converter should have regeneration capability, and the input and output currents of converter should be sinusoidal. Matrix AC-AC converter （MC） has good input and output performances. MC as the exciter is proposed in this paper. The harmonics of the EMF and stator current and rotor current as well as the converter＇s input current are researched based on Saber, the operation characteristics of ACEG with MC as an exciter are compared with those of ACEG with AC-DC-AC converter and cycloconverter as an exciter. Simulation verifies that MC as the exciter has higher power factor, better input current waveforms, and lower harmonic pollution to power grid. So it might become an ideal exciter of the ACEG. The results in this paper will be helpful to the design of the ACEG excitation control system.

关 键 词：交流励磁发电机 矩阵式交-交变频器 SABER仿真 

分 类 号：TM31[电气工程—电机]