失步振荡中心转移下的多断面暂态稳定协调紧急控制研究  

Multi-section Transient Stability Coordinated Emergency Control under the Condition of Out-of-step Oscillation Center Transfer

作　　者：张振宇 王吉利 柯贤波 牛拴保 魏平 蒋宝波 高玉喜 刘俊 ZHANG Zhenyu;WANG Jili;KE Xianbo;NIU Shuanbao;WEI Ping;JIANG Baobo;GAO Yuxi;LIU Jun(Northwest Division of State Grid Corporation of China,Xi’an 710048,China;NR Electric Co.,Ltd.,Nanjing 211102,China;Shaanxi Key Laboratory of Smart Grid,School of Electrical Engineering,Xi’an Jiaotong University,Xi’an 710049,China)

机构地区：[1]国家电网公司西北分部,陕西西安710048 [2]南京南瑞继保电气有限公司,江苏南京211102 [3]西安交通大学电气工程学院陕西省智能电网重点实验室,陕西西安710049

出　　处：《智慧电力》2019年第3期54-59,103,共7页Smart Power

基　　金：国家自然科学基金项目(51507126)~~

摘　　要：相邻断面传输功率之间存在相互影响,进而影响断面的输电极限。针对多断面暂态稳定协调紧急控制问题,首先针对电力系统的失步机理进行理论分析,进而分析了若干电力系统运行参数对大电网失步振荡中心转移的定性影响。首次结合多断面暂态稳定的交互影响特性分析机理,以某超高压电网工程实际为例,开展了输电通道各站振荡失步解列装置的协调配合研究,并确定了合理的失步解列配置方案。通过仿真分析验证了该协调配合方法的正确性和有效性。There is mutual influence between the transmission powers of adjacent sections,which in turn affects the transmission limit of the section.In the light of the problem of multi-section transient stability coordinated emergency control,this paper firstly analyzes the out-of-step mechanism of power systems,and then analyzes the qualitative impact of several power system operating parameters on the out-of-step oscillation center transfer of large power grids.Taking the engineering practice of an ultra-high voltage power grid as an example,the coordination research of the oscillation out-of-step islanding devices in each station of the transmission section is carried out,and reasonable islanding configuration is made,combining with the analysis mechanism of multi-section transient stability interaction characteristics for the first time.The effectiveness and accuracy of the islanding configuration scheme is verified by simulation.

关 键 词：传输功率极限 协调紧急控制 失步振荡 振荡中心转移 解列配置 

分 类 号：TM712[电气工程—电力系统及自动化]