PSS4B模型在600MW自并励系统应用研究  

PSS4B Model's Application Study in 600MW Self-shunt Excitation System

作　　者：周吉琦 魏良 

机构地区：[1]南京南瑞继保电气有限公司,江苏南京211102 [2]浙江国华浙能发电有限公司,浙江宁波315612

出　　处：《神华科技》2018年第1期51-53,56,共4页Shenhua Science and Technology

摘　　要：自并励励磁系统能提高发电机对电网的暂态支撑能力,但由于其高增益,降低了电网系统的正阻尼,电力系统稳定器(PSS)通过引入附加信号,使发电机产生阻尼低频振荡的附加力矩,提高电力系统阻尼,以尽快平息电网有功振荡。随着交流特高压联网和机组不断的大型化,系统振荡频率向中低频发展,PSS4B是近年业界研究的新型多频段电力系统稳定器,具有突出的中、低频段振荡抑制能力,本文介绍PSS4B控制技术在大型发电机自并励励磁系统中的应用研究成果。Self-shunt excitation system can improve the transient support ability of generator to the grid,but as its high gain reduces the positive damping of the grid system,through introducing additional signals,the power system stabilizer （PSS） makes the generator produces additional torque to damp the low frequencyoscillation and increase the damping of the power system to appease the active power oscillation as soon aspossible. With the AC / UHV interconnection and the continuous large-scale of the unit,system oscillationfrequency develops to the middle and low,PSS4B is a new type of multi-band power system stabilizer thatstudied in recent years,which has outstanding ability of restraining oscillation in medium and low frequen？cy bands. This paper introduces the application study results of PSS4B control technology in large generatorself-shunt excitation system.

关 键 词：励磁调节器 PSS2B PSS4B PSS4B-W 

分 类 号：TM311[电气工程—电机]