DocumentCode
2826930
Title
Research on state estimation of regional power grid based on improved least squares method
Author
Wei, Liming ; Zhao, Shan
Author_Institution
Electr. & Electron. Eng. Sch., Jilin Inst. of Archit. & Civil Eng., Changchun, China
fYear
2011
fDate
15-17 July 2011
Firstpage
7621
Lastpage
7623
Abstract
Fundamental principle and function of state estimation software in regional power system are described in this paper. The weighted least square method based on fixed Jacobian matrix combined with the orthogonal transform is used for algorithm. A good stability in computing value and computing speed can be obtained by using the algorithm. The method of state forecast combined with standard residuals is used for detecting bad data to ensure estimation accuracy.
Keywords
least squares approximations; power grids; power system analysis computing; power system state estimation; fixed Jacobian matrix; least square method; orthogonal transform; regional power grid; state estimation software; Jacobian matrices; Power system stability; Software; Software algorithms; State estimation; Transmission line matrix methods; Transmission line measurements; energy management system; improved least squares method; orthogonal transformation; state estimation;
fLanguage
English
Publisher
ieee
Conference_Titel
Mechanic Automation and Control Engineering (MACE), 2011 Second International Conference on
Conference_Location
Hohhot
Print_ISBN
978-1-4244-9436-1
Type
conf
DOI
10.1109/MACE.2011.5988814
Filename
5988814
Link To Document