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

fYear

2014

fDate

18-22 Aug. 2014

Firstpage

1

Lastpage

7

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Systems Computation Conference (PSCC), 2014

Conference_Location

Wroclaw

Type

conf

DOI

10.1109/PSCC.2014.7038330

Filename

7038330