Title :
A zonal-load estimation method for unbalanced, radial distribution networks
Author :
Wan, Jie ; Miu, Karen Nan
Author_Institution :
Dept. of Electr. & Comput. Eng., Drexel Univ., Philadelphia, PA, USA
fDate :
10/1/2002 12:00:00 AM
Abstract :
This paper investigates the problem of load estimation in unbalanced, radial power-distribution networks. The problem is formulated as a weighted l∞-estimation problem with equality and inequality constraints. Properties of the measurement Jacobian are exploited to develop a solution algorithm that decomposes the network into several smaller zones. Detailed tests on a 20-bus, unbalanced, radial distribution network are presented with promising results.
Keywords :
Jacobian matrices; distribution networks; load (electric); power system parameter estimation; 12.47 kV; 20-bus unbalanced radial distribution network; equality constraints; inequality constraints; measurement Jacobian properties; network decomposition; weighted l∞-estimation problem; zonal-load estimation method; Constraint optimization; Jacobian matrices; Load forecasting; Load modeling; Monitoring; Observability; Real time systems; State estimation; Testing; Yield estimation;
Journal_Title :
Power Delivery, IEEE Transactions on
DOI :
10.1109/TPWRD.2002.803830
