摘要
电力系统的安全稳定运行尤为重要,当电力系统发生各类故障引发系统发生失步振荡时,需要将系统的失步振荡中心准确定位,然后进行解列以保证解列后的系统能稳定运行,将损失降到最小。首先,介绍了产生失步振荡的原理及危害。然后,针对当今国内外电网发生失步振荡时产生的危害,分别从就地信息和广域信息两方面对失步振荡中心定位方法进行归纳总结,并对新能源并网场景下影响失步振荡中心迁移的因素进行综述。最后,提出今后研究重点是将基于就地信息定位方法与广域信息方法相结合定位失步振荡中心,以及研究风速波动、光伏电源的控制技术、接入位置、是否有浮云遮挡、不同的功率控制方式、光伏电源的渗透率等关键性因素对并网系统失步振荡中心的影响。
The safe and stable operation of the power system is particularly important. When the power system has various types of faults causing out-of-step oscillation of the system, the out-of-step oscillation center of the system needs to be accurately positioned, and then de-listed to ensure stable operation of the system after the disassembly. Minimize losses. Firstly, the principle and hazard of out-of-step oscillation are introduced. Then, aiming at the hazards caused by out-of-step oscillation in power grids at home and abroad, the location methods of out-of-step oscillation centers are summarized from local information and wide-area information, and the factors that affect the migration of out-of-step oscillation centers in new energy grid-connected scenarios are summarized. Finally, the focus of future research is to combine the local information localization method with the wide-area information method to locate the out-of-step oscillation center, and to study the wind speed fluctuation, the control technology of the photovoltaic power source, the access location, whether there is cloud occlusion, and different power control. The influence of key factors such as the mode and the penetration rate of photovoltaic power supply on the out-of-step oscillation center of the grid-connected system.
作者
毛雅茹
彭志炜
李登瑞
谭洪林
MAO Ya-ru;PENG Zhi-wei＊;LI Deng-rui;TAN Hong-lin(College of Electrical Engineering,Guizhou University,Guiyang,Guizhou 55002)
出处
《新型工业化》
2018年第8期107-113,共7页
The Journal of New Industrialization
基金
贵州省电力系统智能化技术重点实验室建设(项目编号:Z103188)
关键词
光伏并网
风机并网
失步振荡中心迁移
失步振荡中心定位
广域信息
Photovoltaic grid connection
Wind power integration
Out-of-step oscillation center migration
Out of step oscillation center positioning
Wide area information
