Development of an arduino based power analyzer
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Date
2019-06
Authors
Hamzah Bin Kamarudin
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Abstract
In this project, a power analyzer is implemented by using Arduino as a platform in measuring and analyzing the power consumption of electrical devices, equipment and application. A power analyzing device is very important especially in industries to prevent fault in power system. By having this information users will be able to identify the irregularities in electrical parameters as well as high Harmonic so a better action can be taken to prevent loss. The problem with the current power analyzer is that it is very costly. The cheaper version of most power analyzer only displays basics parameters of power consumptions with no harmonic calculation and display. The purpose of this project was to reduce the cost of designing a functional power analyzer for the usage of small-scale industries. The Arduino microcontroller acts as the main processor and collect information, perform calculation and analyze the sensors’ data. The information such as from RMS current and RMS voltage will be calculated to get real power (P), apparent power (S), power factor (PF) and total harmonic distortion (THD). All the data will then be displayed using a TFT LCD display as user can get the real time information on their consumption of electricity whether the load for their appliances or home. A prototype system has been constructed and its performance will be tested comparing the power analzer with a commercial Fluke Power Quality Analyzer. The average percentage error of the power analyzer for the testing of low speed hairdryer is 4.25%, electric kettle is 2.87% and the THD percentage error is 32.64%. It is concluded that the power analyzer can replace the existing power analyzer available on market with cheaper cost, easier usage and installation.