同步发电机的新型励磁系统  

Novel excltation system of synchronous generator

作　　者：吴建东[1] 何丽娜[1] 毛承雄[1] 陆继明[1] 王丹[1] 

机构地区：[1]华中科技大学湖北省电力安全与高效重点实验室,湖北武汉430074

出　　处：《电力科学与技术学报》2009年第1期12-18,共7页Journal of Electric Power Science And Technology

基　　金：国家自然科学基金(50837003);国家重点基础研究发展计划(973计划)基金(2009CB219702)

摘　　要：为提高电力系统的暂态稳定性,提出一种基于全控器件的新型励磁系统.该励磁系统能通过直流励磁和与机端交换无功的双通道为系统提供阻尼,起到STATCOM和常规励磁的效果.通过PSASP环境下多机系统的仿真研究,表明新型励磁系统能够迅速阻尼功率振荡,维持良好的机端电压特性,较常规自并励励磁系统表现出更好的动态性能.In order to improve transient stability of power system at present, this paper presents a novel excitation system based on full controlled devices rectifier. It can damp oscillation by two channels, DC excitation and exchanging reactive with generator terminal, and it can be equaled to STATCOM and A. C. exciter. Simulation results of Multi-machine power system with PSASP show that the novel excitation systern can quickly damp power oscillation and maintain well voltage characteristics of generator terminal. , and have the better dynamic performance than traditional excitation system.

关 键 词：全控器件 励磁系统 同步发电机 低频振荡 

分 类 号：TM712[电气工程—电力系统及自动化]