Title :
Statistical error analysis of household load profile for medium voltage grid state estimation
Author :
Yu Xiang ; Cobben, J.F.G. ; Ribeiro, P.F.
Author_Institution :
Fac. of Electr. Eng., Eindhoven Univ. of Technol., Eindhoven, Netherlands
Abstract :
The paper comprises a detailed analysis of the error ranges of two commonly proposed load estimation methods for household loads, based on statistics. Firstly, a household load profile model is built taking individual user preference into account. To analyze the error range, it is divided into system error (representing proportion factors) and random error (representing the diversity of stochastic loads and measurement inaccuracies). For both estimation methods, two kinds of bounds are used to evaluate the error range, with central limit theorem. Finally, comparisons between different errors are made using field data from a Dutch utility.
Keywords :
buildings (structures); error statistics; load management; power grids; power system state estimation; Dutch utility; central limit theorem; field data; household load profile model; individual user preference; load estimation method; measurement inaccuracy; medium voltage grid state estimation; random error; statistical error analysis; stochastic load; Estimation error; Load modeling; Measurement uncertainty; Power measurement; Real-time systems; Upper bound; central limit theorem; distribution grid state estimation; household load profile; load estimation;
Conference_Titel :
Power Systems Computation Conference (PSCC), 2014
Conference_Location :
Wroclaw
DOI :
10.1109/PSCC.2014.7038330
