电网关键元件及其单调性研究Ⅲ:应用  

Study on the crucial element and its monotone in power grid part Ⅲ:applications

作　　者：常康[1] 韩学山[1] 韩力[1] 王孟夏[1] 

机构地区：[1]山东大学电气工程学院,山东济南250061

出　　处：《电力系统保护与控制》2009年第8期1-4,9,共5页Power System Protection and Control

基　　金：国家自然科学基金资助项目(50677036;50377021)~~

摘　　要：探讨了关键元件及其单调性研究在电力系统中的主要应用。结合一定时间级别的负荷预测数据,建立系统的运行模式,提出了关键元件识别的方法。讨论了关键元件及其单调性在输电能力评估、网络安全预警以及网络结构评价方面的应用潜力。通过对电网络复杂性根本原因的分析,指明了关键元件及其单调性研究能够简化电力系统分析的本质。通过山东电网500kV网络的算例验证了本文方法的正确性。The applications in power systems of the proposed crucial element and its monotone are investigated. A method of crucial element identification is proposed based on a certain time-level load forecasting data and the given operation mode. The applications of crucial element and its monotone characteristic in the area of network transmission capability assessment, security early warning and network structure evaluation are discussed. The fundamental reason for the complexity of power grid is pointed out, and the essence of the simplification caused by the proposed idea is analyzed. The results of Shandong 500kV power grid test verify the proposed method.

关 键 词：电力系统 运行模式 关键元件 单调性 薄弱环节 输电能力 

分 类 号：TM73[电气工程—电力系统及自动化]