Dynamic State Estimator with Phasor Measurements for Power System Electromechanical Transient Process

被引:0
|
作者
Bi, Tianshu [1 ]
Qin, Xiaohui [1 ]
Yang, Qixun [1 ]
机构
[1] N China Elect Power Univ, Key Lab Power Syst Protect & Dynam Secur Monitori, Minist Educ, Beijing 102206, Peoples R China
关键词
D O I
暂无
中图分类号
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号
0807 ; 0820 ;
摘要
Wide area measurement system (WAMS) has been widely used in power system dynamic monitoring and control, such as low frequency identification and control, stability assessment and preventive control, etc. However, as a measurement too], Phasor Measurement Unit (PMU) has the measurement error and bad data unavoidably. If the raw measurements are applied in power system analysis and control directly, the unexpected consequence might be resulted in. Aiming at this problem, a novel dynamic state estimator for generator state variables is proposed in this paper. The corresponding mathematical model is given in detail. Bad data detection and elimination approach is presented as well. The simulation results show that the proposed method can provide the estimated trajectories of the generators in real-time, which eliminates the impact of measurement error and bad data and could give the backbone for WAMS based dynamic applications and real-time control.
引用
收藏
页码:1412 / 1416
页数:5
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