基于电流差动原理的广域继电保护系统  

A Wide Area Protective Relaying System Based on Current Differential Protection Principle

作　　者：丛伟[1] 潘贞存[1] 赵建国[1] 李宪忠 张新萍 

机构地区：[1]山东大学电气工程学院,山东省济南市250061 [2]许继昌南通信设备有限公司,河南省许昌市461000

出　　处：《电网技术》2006年第5期91-95,110,共6页Power System Technology

基　　金：国家自然科学基金资助项目(50477041)。~~

摘　　要：介绍了基于电流差动原理的广域继电保护系统,描述了该系统的工作方式,讨论了划分广域保护范围的原则和实现广域差动保护算法所必需的保护智能电子装置(Intelligent Electronic Device,IED)搜索方法。以双母线结构的电网为例说明了保护IED关联域的搜索步骤。为配合电流采样值在广域保护系统中快速可靠地传输,介绍了基于IEC61850 的电流采样值传输模型和该模型映射到以太网通信栈的一般原理。A wide area protective relaying system based on the principle of current differential protection is presented, the operation mode of this system is described, and the principle to partition wide area protective region and the method to search the protective intelligent electronic device （IED） which is necessary in the implementation of wide area differential algorithm are researched. Taking a power system with double busbar scheme for example, the procedures of searching the associated area of protective IED are illustrated. To ensure the rapid and reliable transmission of sampled value of current in wide area protection system, the IEC 61850 based transmission model for sampled value of current and the general principle of mapping this model to Ethernet communication stack are introduced.

关 键 词：广域继电保护系统 电流差动保护 通信服务模型 映射 智能电子装置 

分 类 号：TM771[电气工程—电力系统及自动化]