Title :
Power system state estimation using gravitational search algorithm
Author :
B. Vedik;Ashwani Kumar Chandel
Author_Institution :
Electrical Engineering Departement, NIT-Hamirpur, Hamirpur, India
Abstract :
In the present paper, gravitational search algorithm in conjunction with weighted least square method has been proposed to solve state estimation (PSSE) problem by considering both conventional and PMU measurements. The proposed method considers the current phasors in polar coordinates and alleviates the ill-conditioned problem caused during flat start. The proposed algorithm has been tested on IEEE-14 and IEEE-30 bus test systems. The effectiveness of the proposed method has been compared with conventional weighted least squares method. The results reveal that the proposed method yield towards the optimum solution and it is far better than WLS method in terms of accuracy.
Keywords :
"Current measurement","Power systems","Measurement uncertainty","Phasor measurement units","Power measurement","Voltage measurement","State estimation"
Conference_Titel :
Computer and Computational Sciences (ICCCS), 2015 International Conference on
Print_ISBN :
978-1-4799-1818-8
DOI :
10.1109/ICCACS.2015.7361318
