电力系统低频功率振荡研究回顾

以低频功率振荡为特征的电力系统小干扰功角稳定性问题在半个多世纪以来得到了系统、深入的研究,大力推进了现代电力系统的发展。以时间为主线,对五十多年来电力系统低频振荡问题研究的历史进行了简单的回顾。首先介绍了早期同步发电机转子运动摆动现象的发现和解决过程,并总结了单机无穷大系统低频振荡问题的理论和实验研究。其次,围绕电力系统低频振荡阻尼控制分析的理论和方法,对模式分析和阻尼转矩分析在低频振荡研究领域的应用做了讨论与回顾。最后,介绍了近年来对大规模风电接入影响电网小干扰功角稳定性研究的进展。

Review of Studies on Low Frequency Power Oscillations of Power Systems

Systemetical and full studies on the issue of small signal angular stability featured by low frequency power oscillation in power system for over half a century have greatly pushed forward the development of mordern power system. The progress of studies on low frequency power oscillations of power system are reviewed according to the timeline. Firstly, the discovery of hunting phenomenon of synchronous generators and its solution in earlier time are recalled. Then the theory and experiment researches of low frequency power oscillations for simple single machine infinite systems are concluded. Secondly, by introducing the theories and methods on damping control and analysis of low frequency power oscillations, model analysis and damping torque analysis applied to low frequency power oscillations are reviewed and discussed. Finally, recent research progress on the impact of large scale wind power integration on power system small signal angular stability is reviewed.