TY  - JOUR
T1  - Android Based Low Cost Harmonic Analyzer
AU - Syai`in, Mat AU - Adiatmoko, M.F. AU - Soeprijanto, Adi AU - Hatta, A.M. AU - Rohiem, N.H. AU - Sidik, M.S.A. 
JO  - Journal of Engineering and Applied Sciences
VL  - 14
IS  - 21
SP  - 7988
EP  - 7995
PY  - 2019
DA  - 2001/08/19
SN  - 1816-949x
DO  - jeasci.2019.7988.7995
UR  - https://makhillpublications.co/view-article.php?doi=jeasci.2019.7988.7995
KW  - Discrete Fourier
Transformation (DFT) Android
KW  -Total Harmonic Distortion (THD)
KW  -micro grid systems
KW  -Power systems
KW  -harmonics
KW  -ALCHA
AB  - This study proposes a prototype of harmonic analyzer that can be synchronized with Android. The
prototype is used to measure and monitor harmonics in the power systems as well as micro grid system. The
prototype of Android based Low Cost Harmonic Analyzer (ALCHA) is constructed by using current sensor,
microprocessor, data base and Android Software. The advantage of ALCHA is very cheap comparing to
commonly harmonic analyzer in the market. ALCHA utilizes available components on the market with affordable
price and also, utilizes open source software. In this study, the observation is focus on harmonic 3rd, 5th, 7th
and 9th and Total Harmonic Distortion (THD) that referring to IEEE 519 standard. Based on experiment results
can be proof that ALCHA has capability for detecting harmonics that occur both in the power system and in
the micro grid system. Standard deviation of ALCHA compared to laboratory scale harmonic analyzer is around
1.4%.
ER  -