500kV-220kV电磁环网开环研究  

On opening 500 kV- 220 kV electromagnetic loop circuit

作　　者：孔涛[1] 王洪涛[1] 刘玉田[1] 杨明辉[2] 牟宏[2] 

机构地区：[1]山东大学电气工程学院,山东济南250061 [2]山东电力调度中心,山东济南250001

出　　处：《电力自动化设备》2003年第12期13-16,共4页Electric Power Automation Equipment

基　　金：国家电力公司资助(SP11-2001-04-50-10)

摘　　要：随着500kV电网的建设,许多地区出现了500kV-220kV高低压电磁环网,有些因成为安全隐患而需要断开。分析了500kV线路开断引起220kV系统过负荷等电磁环网的安全隐患,给出了电磁环网是否开环应考虑的安全稳定性和经济性等因素,提出判断500kV-220kV电磁环网是否应该开环的一般步骤,并以山东北部电网为例说明了这些问题。With the development of power transmission networks,electromagnetic loop circuits of 500 kV-220 kV appear in many places,some of which should be opened because they threaten the power system security. The insecurity, such as 220 kV-system overload caused by opening 500 kV-system,is analyzed. The security and stability of power system and the economic factors should be considered before breaking the electromagnetic loop circuit. A general procedure whether a loop circuit should be opened is proposed. The north power system of Shandong is analyzed as an example. This project is supported by State Power Corporation of China(SP11-2001- 04 -50 -10).

关 键 词：电磁环网 安全稳定性 输电网络 

分 类 号：TM712[电气工程—电力系统及自动化]