利用PSS/E实现电力系统低频减载控制仿真  

Realization of power system under-frequencyload shedding control simulation with PSS/E

作　　者：谢大鹏[1] 王晓茹[1] 张薇[1] 

机构地区：[1]西南交通大学电气工程学院,四川成都610031

出　　处：《电力系统保护与控制》2009年第1期71-75,82,共6页Power System Protection and Control

基　　金：国家自然科学基金重大研究计划面上项目(90610026);四川省应用基础研究项目(2006J13-111)

摘　　要：随着电力科学的不断进步、电力技术的不断提高以及新的设备和装置的投入使用,虽然PSS/E软件提供了许多标准及非标准模型,但是仍然无法满足系统仿真的需要,因此有必要对PSS/E进行自定义模型的研究。阐述了PSS/E软件中自定义模型的应用,深入分析了自适应低频减载的基本原理。在PSS/E软件上应用FLECS语言建立了具有自适应低频减载功能的自定义模型。并通过IEEE3机测试系统,仿真实现了一种自适应低频减载方案,并与传统减载方案进行了分析比较。结果表明新的减载模型定义准确,自适应方案与传统方案相比具有减载准确、迅速、频率恢复较快等优点。Along with the progress of power science, the improvement of power technology and the use of new equipments and facilities, although the PSS/E software has supplied many standard and nonstandard models, it still can not satisfy the needs of system simulation. So, it is necessary to research user-defined model in PSS/E. In this paper, the application of user-defined model in PSS/E is introduced, and the basic principle of adaptive under-frequency load shedding （AUFLS） is deeply analyzed. The user-defined model with AUFLS ability is built with FLECS language in PSSTE. Through IEEE 3-generator test system, the AUFLS scheme is simulated and accomplished, and is compared with traditional UFLS scheme. The results show that the new load shedding model is accurately defined. And in comparison to the traditional UFLS scheme, the AUFLS scheme has advantages of more accurate and rapid load shedding, and quick frequency recovery.

关 键 词：自定义模型 低频减载 频率动态仿真 PSS/E 

分 类 号：TM76[电气工程—电力系统及自动化]