水电站电力系统稳定器的应用研究  

Application Research on Power System Stabilizer of Hydropower Station

作　　者：朱伟 董哲 沈志雨 ZHU Wei;DONG Zhe;SHEN Zhi-yu(SPIC Chongqing Jiangkou Hydropower Co.,Ltd.,Chongqing 408506,China;School of Electronics and Information,Xi'an Polytechnic University,Xi'an 710048,China)

机构地区：[1]国家电投集团重庆江口水电有限责任公司,重庆408506 [2]西安工程大学电子信息学院,陕西西安710048

出　　处：《云南水力发电》2022年第4期266-269,共4页Yunnan Water Power

摘　　要：如今,我国的水力发电技术已经取得了巨大的成果,尤其是我国小水电的可开发量取得了很大的突破,但是在电力系统中低频振荡越来越严重。为了解决这一问题,采用电力系统稳定器(PSS)来改良电力系统的阻尼,分析交-直-交控制系统,最后在MATLAB/SIMULINK软件中搭建了水电站地并网系统,进行参数设置,分别对有PSS和无PSS水力发电系统进行励磁参考电压变化下和三相故障仿真对比,仿真结果表明PSS的投入有效减小了系统振荡,并证明了整个并网系统的可行性。Nowadays,great achievements have been made in Hydropower Technology in China.In particular,great breakthroughs have been made in the development of small hydropower in China.However,the low frequency oscillations in power system become more and more serious.In order to solve this problem,power system stabilizer(PSS)is used to improve damping of power system and analyze AC-DC-AC control system.Finally,the grid-connected system of hydropower station is built in MATLAB/SIMULINK software and the parameters are set.It compares the excitation reference voltage with and without PSS hydroelectric power system by three-phase fault simulation.The simulation results show that the input of PSS effectively reduces the system oscillation and proves the feasibility of the whole grid-connected system.

关 键 词：低频振荡 电力系统稳定器(PSS) 交-直-交控制系统 MATLAB/SIMULINK仿真 

分 类 号：TM77[电气工程—电力系统及自动化] TM44