新疆电网频率的时空分布分析  

Analysis on Temporal and Spatial Distribution of Frequency in Xinjiang Power Grid

作　　者：吴茂乾[1] 陈江 王筱[1] 赖国辉[1] 常喜强 晁勤[1] 

机构地区：[1]新疆大学电气工程学院,新疆乌鲁木齐830047 [2]奎屯市电业局,新疆奎屯833200 [3]新疆电力调度通信中心,新疆乌鲁木齐830008

出　　处：《四川电力技术》2012年第1期19-21,72,共4页Sichuan Electric Power Technology

摘　　要：电网频率是衡量电能质量好坏的重要指标之一。同时也是研究系统运行方式、设计低频减载方案以及评价各种调频调压措施等工作的基础。主要针对2011年新疆电网通过新投运750 kV线路与西北电网联网与不联网时,新疆电网出现功率变化及西北电网出现大功率缺额时对新疆电网频率的时空分布特性影响进行了仿真分析,并对这两种情况下新疆电网频率的时空分布特性给电网安全带来的影响,尤其是低频减载方案的影响进行了探讨比较。One of the important indexes to measure the power quality is grid frequency.Also it is the base to study the system operating mode,design the frequency load shedding scheme and evaluate the measures of frequency modulation and voltage regulation.The impact on temporal and spatial distribution characteristics of frequency in Xinjiang Power Grid when there is power change in Xinjiang Power Grid and there is high power shortage in Northwest Power Grid during the interconnection between these two grids or not by the new 750 kV line are analyzed and simulated.The impact of temporal and spatial distribution characteristics of frequency in Xinjiang Power Grid on the grid security,especially the impact on low-frequency load shedding scheme in both cases are discussed and compared.

关 键 词：750KV线路 孤网 时空分布 低频减载 

分 类 号：TM73[电气工程—电力系统及自动化]