摘要
电力系统状态估计,对保证电力系统的安全性和经济性起着重要的作用,是电力系统调度、控制、安全评估等方面的基础,也是当代电力系统能量管理系统(EMS)的核心组成部分。状态估计算法是状态估计的核心,其中快速分解状态估计算法是在吸取潮流计算经验的基础上得到,是状态估计的优良实用算法。本文对电力系统状态估计的原理及方法进行研究,建立了快速分解法状态估计的数学模型。最后,通过对IEEE-14节点的算例分析,验证模型的有效性。
State estimation for power system was important to the safety and economics for power system, which was the foundation for dispatch, control and safety evaluation for power system, and also a key composition in EMS. The algorithm in state estimation was the core in state estimation. The fast decomposition algorithm was obtained based on power flow calculation, which was feasible in state estimation. The paper studied the principle and method of state estimation for power system, and constructed the mathematical model for fast decomposition. Finally, the efficiency of model was verified through case study of IEEE 14 buses system.
出处
《贵州电力技术》
2014年第6期4-7,13,共5页
Guizhou Electric Power Technology
关键词
电力系统
状态估计
快速分解
最小二乘
power system
state estimation
fast decomposition
least square
