电力系统自动化Issue(23)：119-124,6.DOI:10.7500/AEPS20130621015
一次调频试验引发低频振荡实例及机理分析
A Low Frequency Oscillation Event Caused by Primal Frequency Modulation Test and Its Mechanism Analysis
摘要
Abstract
A low frequency oscillation incident caused by primal frequency modulation test on steam turbine generator units is described.The mechanism of oscillation is analyzed and the countermeasure is proposed.The basic oscillation characteristics are analyzed according to the low frequency oscillation waves recorded by the wide area measuring system,and the oscillation process is simulated in the PSCAD/EMTDC software.The principle of determining the low frequency oscillation mechanism (the negative damping or the resonance mechanism) is discussed.By referring to the damping characteristic curves of different steam turbine control modes and parameters,the cause of the low frequency oscillation incident is found to be the improper steam turbine control parameter setting which results in the negative system damping.To aviod this kind of low frequency oscillation,proper parameter setup of the steam turbine control system is essential.关键词
广域测量系统/低频振荡/汽轮机控制/一次调频试验Key words
wide area measurement system (WAMS)/low frequency oscillation/steam turbine control/primal frequency modulation test引用本文复制引用
徐衍会,王珍珍,翁洪杰..一次调频试验引发低频振荡实例及机理分析[J].电力系统自动化,2013,(23):119-124,6.基金项目
国家自然科学基金资助项目(51077049) （51077049）
中央高校基本科研业务费专项资金资助项目(11QG02) （11QG02）
广东电网公司电力科学研究院科研项目(ztgh201201-001)。@@@@This work is supported by National Natural Science Foundation of China (No.51077049),the Fundamental Research Funds for the Central Universities(No.11QG02)and Electric Power Research Institute of Guangdong Power Grid Corporation (No.ztgh201201-001) （ztgh201201-001）
