search query: @supervisor Koivo, Heikki / total: 118
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Author:Korhonen, Akseli
Title:Verification of energy meters using automatic meter reading data
Publication type:Master's thesis
Publication year:2012
Pages:56      Language:   eng
Department/School:Automaatio- ja systeemitekniikan laitos
Main subject:Systeemitekniikka   (AS-74)
Supervisor:Koivo, Heikki
Instructor:Hällström, Jari
OEVS:
Electronic archive copy is available via Aalto Thesis Database.
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Location:P1 Ark Aalto  5212   | Archive
Keywords:multiple regression
energy meter
recursive estimation
least squares
usean selittäjän regressio
energiamittari
rekursiivinen estimointi
pienin neliösumma
Abstract (eng): Verification of consumer electricity meters with conventional methods is costly and inefficient.
This paper presents a method for verification of electricity meters using automatic meter reading data.
An approach where a calibrated sum meter is used to measure the sum energy consumption of a group of customer meters is studied.
When placed in a tree-like grid, the traceable calibration of the sum meter in the trunk of the tree can be transferred to the customer meters in the branches.

Mathematical basis for the method is derived and the related assumptions studied.
The process is applied in a real-life scenario using data from a field experiment.
Using simulations based on the real consumption data, the applicability of the approach is assessed.
Abstract (fin): Sähkömittareiden käytönaikainen varmentaminen on nykyisillä menetelmillä kallista ja tehotonta.
Tässä työssä esitetään menetelmä sähkömittareiden käytönaikaiseen varmentamiseen automaattisen mittarinluentadatan avulla.
Tutkittavassa menetelmässä kalibroitu summamittari mittaa asiakasmittarijoukon yhteenlaskettua energiankulutusta.
Kun mittarit muodostavat verkossa puumaisen rakenteen, puun juuressa olevan summamittarin jäljitettävä kalibrointi voidaan siirtää haaroissa oleviin asiakasmittareihin.

Työssä johdetaan menetelmän matemaattinen perusta ja tutkitaan siihen liittyviä oletuksia.
Menetelmän suoriutumista todenmukaisessa tilanteessa tutkitaan käyttäen kenttäkokeessa kerättyä mittausdataa.
Sovellettavuutta arvioidaan kenttäkokeessa kerättyyn kulutusdataan pohjautuvien simulaatioiden avulla.
ED:2012-05-14
INSSI record number: 44499
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