关于提高电网在线安全稳定预警准确性措施的探讨  

Discussion of enhancing accuracy for power grid dynamic security pre-warning system

作　　者：谢大为[1] 刘玉娟 李碧君[3] 

机构地区：[1]安徽电力调度通信中心,安徽合肥230022 [2]南京信息工程大学,江苏南京210044 [3]国网电力科学研究院,江苏南京210003

出　　处：《电力系统保护与控制》2010年第23期234-237,共4页Power System Protection and Control

摘　　要：介绍了电网在线安全稳定预警的技术现状,指出预警准确性方面存在的隐患,包括潮流仿真不准、预想故障设置不全、站内故障难以仿真、继电保护和安全自动装置状态识别困难、难以校验在线计算参数准确性等问题.分析了可能影响预警结果准确性的因素,提出了提高电网在线安全稳定预警准确性的总体思路,具体描述了相关措施的目标、实现方法及应用情况。The technical status of power grid dynamic security and stability pre-warning system is introduced. The problems of pre-waming accuracy is analyzed, including that power flow simulation is not accurate, expected fault set is incomplete, fault in substations is difficult to simulate, the state of protective relay and safety automatic device are difficult to identify, and the accuracy of online calculation parameters is difficult to verify. The factors possibly affecting the pre-warning accuracy are analyzed. The general idea of improving pre-warning accuracy is proposed, and the relevant objectives, implementation methods and applications are described specifically.

关 键 词：电网 在线 安全 稳定 预警 准确性 

分 类 号：TM712[电气工程—电力系统及自动化]