摘要
正状态估计是电力系统中能量管理系统(Energy Management System,EMS)的核心功能之一,有效的状态估计是确保电力系统安全、稳定、经济运行的前提条件。首先从算法、网络参数、量测设备三个方面介绍了影响电力系统状态估计精度和计算速度的相关因素;然后分别从算法改进、量测配置方面总结状态估计的研究现状及存在问题,并对基于混合量测相关算法改进进行阐述;最后指出电力系统动态状态估计当前所面临的问题以及下一步可能值得研究的方向。
State estimation is one of the core functions in the energy management system (EMS) of the power system. Effective state estimation is precondition to ensure the power system safety stability and economic operation. Firstly, the related factors in the power system which influences the accuracy of state estimation and the speed of calculation are introduced from three aspects: algorithm, network parameters and measurement equipment. Then, the research status quo and problems of state estimation are summarized from the aspects of algorithm improvement and measurement configuration. Expounding the related algorithm based on hybrid measurement. Finally, it points out the current problems of power system dynamic state estimation and the direction that may be worth studying in the next step.
作者
张叶贵
ZHANG Ye-gui(College of Electrical Engineering,Guizhou University,Guiyang,Guizhou 550025)
出处
《新型工业化》
2019年第5期101-107,共7页
The Journal of New Industrialization
基金
国家自然科学基金项目资助(61540067)
贵州省科技创新人才团队项目(黔科合平台人才[2018]5615)
关键词
动态状态估计
混合量测
网络参数
Dynamic state estimation
Hybrid measurement
Network parameters
