节点戴维南等值参数在线跟踪简捷算法  

A Simple and Direct Method of On-line Tracking Thevenin Equivalent Parameters of Load Node

作　　者：李来福[1] 柳进[1] 于继来[1] 柳焯[1] 

机构地区：[1]哈尔滨工业大学,黑龙江省哈尔滨市150001

出　　处：《中国电机工程学报》2006年第10期40-44,共5页Proceedings of the CSEE

基　　金：国家自然科学基金项目(59477010;50477008);高等学校博士学科点专项科研基金课题(20040213031)

摘　　要：提出一种戴维南等值参数在线跟踪简捷算法,借助导出的解析表达式,运用运行点及其邻域点来自不同数据源 (状态估计或本地测量)的数据,可以直接快速算出戴维南等值参数,不需要迭代,也不存在初值选择问题,过程简捷、计算快速。适合于在线跟踪戴维南等值参数,以帮助运行调度人员掌握电网事故扩展过程中紧急态势的动向。A simple and direct method of on-line tracking Thevenin parameters is put forward. Analytical expression formulas of Thevenin parameters which needn＇t iterative computation are derived. On the base of the formulas, Thevenin parameters can be calculated directly by using the data of running point and its neighboring point obtained from different information sources （state estimation or local measurement）. This method possesses the following advantages such as simple and direct, highspeed, exact computation result. The works in this paper can be applied to on-line tracking the dynamic changing of power grid.

关 键 词：电力系统 紧急态势分析 戴维南等值 在线跟踪算法 

分 类 号：TM71[电气工程—电力系统及自动化]