电网规划风险评估工程综合应用研究  

Comprehensive Application of Risk Evaluation Project for Power Grid Planning

作　　者：李隽[1] 高艺[1] 宋福龙[1] 

机构地区：[1]国网北京经济技术研究院,北京市102209

出　　处：《电力建设》2014年第12期14-18,共5页Electric Power Construction

基　　金：国家电网公司科技项目(基于可靠性风险评估的大电网安全性研究)

摘　　要：阐述了风险评估技术在输电网规划实际工程中的应用,基于输电通道建设时序、网架加强、单一工程对电网风险影响等工程实例进行静态风险分析。通过建立的静态安全最优控制模型和方法,评估"晋、陕、蒙"能源基地不同外送通道建设时序方案的风险水平,以及通道中关键线路可靠性参数变化、通道送电规模变化对系统风险水平的影响;以华中电网某局部500 k V电网为例,量化规划方案风险水平,找出电网的薄弱环节,从降低风险角度判断加强网架的必要性,明确电网建设投资方向;以华东电网1 000 k V环网工程为例,从风险分析的角度,量化分析单一输变电工程投产前后对电网静态风险水平的影响。This paper described the practical application of risk evaluation techniques in transmission netw ork planning projects,and analyzed the static risk of engineering examples,such as the construction sequence of transmission channel,pow er grid reinforcement planning,the effect of a transmission project on grid risk level,etc. Based on the established static optimal control model and method,the risk level of construction sequences schemes for Jin,San,M eng energy base pow er transfer channels w as evaluated,as w ell as the reliability parameters change of the key lines in channels,and the impact of various transfer capacities on the system risk level. Taking a 500 k V grid in Central China as example,this paper quantitated the risk level of planning scheme,found out the w eakness of grid,judged the necessity of strengthening grid from the perspective of risk reduction,and clarified the investment direction of pow er grid construction. Taking 1000 k V loop netw ork in the Eastern China Pow er Grid as example,quantitative analysis w as carried out on the impact of single transmission project commissioning on the static risk level of pow er grid.

关 键 词：电网规划 系统风险 风险评估 静态安全 

分 类 号：TM715[电气工程—电力系统及自动化]