区域电网远端故障引发互联系统稳定破坏现象探究

发布时间：2018-01-11 09:37

本文关键词：区域电网远端故障引发互联系统稳定破坏现象探究　出处：《电网技术》2014年01期 　论文类型：期刊论文

【摘要】：针对仿真分析中发现区域电网远端故障引发互联系统稳定破坏的现象。基于四机两区域互联系统,研究了大区互联电力系统暂态稳定特性。指出系统的网络结构和运行方式均会影响系统暂态失稳表现形式。在定条件下,可能发生较小的故障冲击造成互联系统失去暂态稳定,而较大的故障冲击不会使得互联系统暂态失稳。研究结果有助于掌握大区互联系统暂态稳定特性及其可能发生的失稳形式,以加深对大区互联电力系统运行特性的理解,保证互联系统安全稳定运行。
[Abstract]:In view of the phenomenon that the remote fault of the regional power network leads to the stable failure of the interconnected system in the simulation analysis, based on the four-machine and two-area interconnected system. The transient stability characteristics of interconnected power systems in a large area are studied. It is pointed out that the network structure and operation mode of the system will affect the performance of transient instability of the system. It is possible to cause the interconnected system to lose transient stability due to the small fault impact. However, the large fault impact will not cause transient instability of interconnected systems. The results of the study are helpful to grasp the transient stability characteristics and possible instability forms of interconnected systems in large area. In order to deepen the understanding of the operation characteristics of the interconnected power system in a large area and ensure the safe and stable operation of the interconnected power system.
【作者单位】：中国电力科学研究院;
【基金】：国家电网公司大电网重大专项资助项目课题(SGCC-MPLG001-2012)~~
【分类号】：TM712
【正文快照】： 0引随着长治—南阳—荆门特高压示范工程投入运行,我国华北、华中两大区域电网通过特高压交流联络线形成互联电力系统,共包含12个省(市)级电网。网架结构复杂、运行方式多变,大区互联电网的安全稳定运行面临新的挑战[1-8]。目前的仿真分析发现,在华北—华中联网系统中,当四川

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