BARBOSA, L. A.; http://lattes.cnpq.br/2072562413845100; BARBOSA, Lenilson Andrade.
Resumo:
The concept of prototype design to estimate the parameters to the power and the power
of the electric power, able to provide data of consumption, slow values, maximum and
minimum values, harmonic individuals up to 50a, total harmonic distortion, voltage
unbalance, frequency and powers is presented. A three-phase integrated energy meter
90E36A was used as the electric signal acquisition interface and a single Beaglebone
Black board computer for parameter calculation and implementation of the remote
interface. The acquired data are processed and, in addition to being saved in a file, are
made available to the user in the form of tables and graphs, through a graphical web
interface. The prototype developed was characterized and tested in the laboratory when
compared to a commercial electric power quality analyzer, used as reference meter. The
percentage deviations of the measurements, relative to the reference meter, were
evaluated for linear and non-linear loads. The main results are percentage deviations not
exceeding 2,40% and 0,05%, respectively, for measurements of effective values and
frequency.