基于状态拓扑模型的电网安全稳定研究及展望  

Research and prospect of grid security and stability based on state topology model

作　　者：竺炜[1] 黄明涛 钟鹏[1] 

机构地区：[1]长沙理工大学电气与信息工程学院,湖南长沙410004

出　　处：《电力科学与技术学报》2016年第1期70-77,共8页Journal of Electric Power Science And Technology

基　　金：湖南省高校创新平台开放基金(13K056)

摘　　要：为应对跨区互联和智能化对电网安全稳定提出的挑战,急需构建融合电网状态和拓扑的直观分析模型。电网数学模型虽隐含了拓扑信息,但对各状态量耦合关系的表达缺乏简明的物理直观性;电网拓扑虽直观,但无法表征状态量之间的物理关系。为此,该文通过功角状态和拓扑映射,得到了电网的映射简明物理模型--映射弹性网;通过力学分析,得到电网功角安全性的定量分析方法和指标,并应用于电网结构安全性分析和安全经济综合优化中。展望未来,该模型及其改进模型,在大电网演化特征及安全性分析、可视化运行、在线稳控防线识别和区间功率振荡机理分析等方面,都将发挥实际作用。In order to cope with the challenge of trans-regional interconnection and intelligence to the security and stability of power grid,it is extremely urgent for the integration of network state and topology into a visualized analysis model.Although the power network mathematical model covers topological information,the state variables coupling relationship expression is lack of simple physical visualization.On the other hand,the network topology is visualized,but it can not characterize physical relationship between state variables.Therefore,the concise physical model was built based on the state of power-angle and topology mapping in this paper,it was named the mapping elasticity network.The quantitative analysis method and the power angle security index were obtained through mechanics analysis,and applied to the structural safety analysis and the security and economy comprehensive optimization.In the future,this model and its improved model will play a important role among the large power network evolution,security analysis,vis-ual operation,on-line stability control defense line identification and interval power oscillation mechanism analysis.

关 键 词：电网互联 安全稳定性 状态拓扑 映射物理模型 弹性网 

分 类 号：TM711[电气工程—电力系统及自动化]