摘要
以单机无穷大系统为例对弱阻尼振荡和强迫振荡机理的异同进行了分析;以具有交直流并行联络线的四机两区域系统为模型,采用特征值分析法和时域仿真方法,利用BAP和PSCAD/EMTDC仿真软件对低频振荡现象进行了研究;仿真分析了高压直流输电的接入对系统阻尼的影响以及强迫振荡的影响因素,比较了两种振荡现象的异同。研究结果对低频振荡的分析、监测和控制有一定指导作用。
Differences between the weak damping oscillation and forced oscillation mechanism were analyzed with single machine infinite bus power system in the paper. Using the two-area system with paralleled DC and AC lines as the simulation model, oscillation phenomena were simulated and analyzed by eigenvalue analysis and time domain simulation methods in BPA and PSCAD/EMTDC; And the effect of access of HVDC transmission to the power sys- tem damping and effect factors to forced oscillation were also analyzed. Besides, the differences of the two Oscilla- tion phenomena were compared. The results of the study have definite instructive meaning for the analysis, monitor and control of low frequency oscillation.
出处
《电力系统及其自动化学报》
CSCD
北大核心
2013年第1期47-52,共6页
Proceedings of the CSU-EPSA
基金
国家自然科学基金资助项目(51037003)
关键词
低频振荡
弱阻尼振荡
强迫振荡
高压直流输电
low frequency oscillation
weak damping oscillation
forced oscillation
HVDC transmission
