地区电网输电安全水平在线评估算法与系统设计  

An On-Line Assessment Algorithm of Transmission Security Level for Regional Power Grid and Its Design

作　　者：刘若溪[1] 张建华[1] 苏玲[1] 潘俊 

机构地区：[1]电力系统保护与动态安全监控教育部重点实验室(华北电力大学),北京市昌平区102206 [2]江苏镇江供电公司,江苏省镇江市212002

出　　处：《电网技术》2011年第4期46-52,共7页Power System Technology

基　　金：国家自然科学基金项目(50877026)~~

摘　　要：随着中国城市化进程的不断推进,越来越多的有关地区电网输电安全性的问题被人们关注,其中输电安全水平的在线评估就是其中之一。提出了地区电网输电安全水平在线评估的相关数学模型,并在此基础上建立了相应的评估策略,采用重复潮流法对地区电网当前运行方式下的输电安全水平进行了评估。以上述方法为核心,应用实时数据库与关系数据库相结合的方法设计了地区电网输电安全水平在线评估系统的硬件网络结构与软件架构,并对数据传输方式作了描述。最后按照文中所述方法在某地级市尝试搭建了该在线评估系统,并利用在线数据对所提方法进行了验证,结果证明所提模型与评估策略的可行性。Along with the unceasing and rapid development of urbanization in China, more and more attentions are paid to the transmission security of regional power grid, and one of the most critical issues is the on-line assessment of transmission security level. A mathematical model related to the on-line assessment of transmission security level of regional power grid is proposed, and on this basis a corresponding strategy is built and the repetitive power flow analysis is utilized to assess the transmission security level of regional power grid under current operation mode. Regarding the presented strategy as the core, an approach, in which the real-time database is combined with relational database, is adopted to design the hardware structure and software architecture of the on-line transmission security level assessment system for regional power grid, and the mode of data transmission is described. Finally, utilizing above-mentioned strategy and approach, an on-line assessment system for a certain prefecture-level city is set up, and the proposed methods are verified by on-line data. Verification results show that the proposed model and assessment strategy are feasible.

关 键 词：地区电网 安全性 在线评估 最大输电能力 实时输电安全系数 

分 类 号：TM71[电气工程—电力系统及自动化]