TY  - JOUR
T1  - The Evaluation of the Confidence Intervals for the State Parameters of a DC Power System
AU - Khan, Zahid AU - Razalia, Radzuan AU - Daud, Hanita AU - Norc, Nursyarizal Mohd AU - Firuzabad, Mahmud Fotuhi 
JO  - Journal of Engineering and Applied Sciences
VL  - 12
IS  - 18
SP  - 4544
EP  - 4550
PY  - 2017
DA  - 2001/08/19
SN  - 1816-949x
DO  - jeasci.2017.4544.4550
UR  - https://makhillpublications.co/view-article.php?doi=jeasci.2017.4544.4550
KW  - DC load flow model
KW  -F-distribution
KW  -interval linear estimation
KW  -Student t-distribution
KW  -state estimation
KW  -weighted least squares
AB  - State estimation in power engineering is used as a tool to find the unknown parameter values from the hypothesized model by utilizing the specified information available about the system. Due to random noises that are added from different sources, the exact value of the state vector cannot be found. This study is an effort to describe the simultaneous and individual confidence intervals for the state parameters in view of the heteroscedastic structure of the error terms. The performance of the constructed intervals in terms of coverage probability has been evaluated by using the Monte Carlo simulation study. The results of the study demonstrate that it is an effective method for practical implementation in the state estimation a power system.
ER  -