一种抑制全域低频振荡的新型电力系统稳定器研究  

New Type of Power System Stabilizer Restraining Global Low-frequency Oscillation

作　　者：吴剑超 李登峰 霍承祥 高磊 李照庭 魏巍 WU Jianchao;LI Dengfeng;HUO Chengxiang;GAO Lei;LI Zhaoting;WEI Wei(China Electric Power Research Institute,Haidian District,Beijing 100192,China;State Grid Chongqing Electric Power Research Institute,Yubei District,Chongqing 401123,China)

机构地区：[1]中国电力科学研究院有限公司,北京市海淀区100192 [2]国网重庆市电力公司电力科学研究院,重庆市渝北区401123

出　　处：《电网技术》2022年第3期1135-1141,共7页Power System Technology

摘　　要：电力系统稳定器(power system stabilizer,PSS)是增强系统低频振荡阻尼的基本措施,目前系统中广泛应用的PSS2型对大部分低频振荡(0.1~2.0Hz)具有良好的阻尼作用,但对交直流混联电网中出现的低于0.1Hz的超低频振荡,不能提供有效的阻尼。该文提出一种全新的PSS结构——两支路并联运行PSS,新型PSS继承了单输入电功率增量的PSS的优点,同时反调影响较小,又可为超低频振荡提供阻尼作用,参数设置简单。该文对其参数设置进行了介绍并在PSASP的仿真系统进行了仿真验证,证明其作用良好。The power system stabilizer(PSS) is a basic method to enhance low frequency oscillation damping. Type PSS2, which is widely used in the current system, is effective in the typical low frequency oscillation mode(0.1~2.0 Hz), but it can’t damp effectively in the ultra-low frequency oscillation(below 0.1 Hz) in the AC/DC hybrid power systems. This paper presents a new type of PSS structure--the two branch parallel PSS. The new type of PSS not only inherits the advantages of the PSS with single active power increment input, but also can provide damping in the ultra low frequency oscillation. It has less impact of reverse action and simple parameter setting. This paper introduces the parameter setting and verifies it in the simulation system of PSASP, and proves that it works well.

关 键 词：超低频振荡 动态稳定 多频段PSS 阻尼 

分 类 号：TM721[电气工程—电力系统及自动化]