Nowadays, electricity is the most important or basic needs of human life. In this paper, the development of power factor meter using Arduino will be discussed. To measure power, several parameters were extracted, including voltage and current from the alternating current (AC) source. Voltage and current sensors outputs were interfaced to Arduino, in which the real power and apparent power were calculated to determine the power factor. Experimental results on the current measurement calibration showed the accuracy of our proposed power factor meter. Moreover, the measured data points were logged in an SD card, at the same time it was sent to Matlab with graphical user interface (GUI) for ease of further monitoring. Finally, IoT framework analysis for smart meter was further discussed in this paper.

Development of Power Factor Meter using Arduino

Nowadays, many residential and commercial buildings that used electricity
needs to take care the power factor to avoid penalty from the utility
companies. A power factor that is close to one provides a good indicator for
the overall power quality. Therefore, power factor improvement plays a
significant role to reduce electricity consumption and more efficient system
operation. In this paper, the design of power factor meter using Internet of
Things will be discussed. Voltage and current sensors outputs were
interfaced to Arduino, in which the real power and apparent power were
calculated to determine the power factor. Results showed the effectiveness of
our proposed device in measuring power factor. Moreover, the measured data
points were logged in an SD card and can be accessed by computer with
Matlab graphical user interface (GUI). In addition, IoT framework analysis
for smart meter which can provide power factor improvement, remote
monitoring, and data logging was further discussed in this paper.

/pdf/design-of-power-factor-meter-using-internet-of-things-for-2jvux7h68o.pdf

Design of power factor meter using internet of things for power factor improvement, remote monitoring and data logging

This paper presents a simple yet effective method to determine the phase angle difference across any load connected to the supply. The proposed idea works on conditioning of the current and voltage signals in and across the load line and displays the phase difference through a Digital Panel Meter. It can indicate leading or lagging phase through a lead-lag indicator circuit. The authors simulated the whole electronic circuit in Proteus circuit simulation tool. The novelty of the project lies in the simplicity of the technique to determine the phase angle difference and the cost-effective implementation of the electronic circuit.

Development of a digital phase angle meter

Conventional power factor meter uses analogue
system to read the power factor of an AC electric power system
which is defined as the ratio of the real power to the apparent
power. In the modern life, an easy-captured data yet cost
effective power factor measurement device is vital in the
electrical power engineering studies. The unstable reading of
the analogue based power factor meter especially in the
disturbance situations emerged the development of digital
based power factor meter (PFM) to replace the conventional
electro-dynamic types. The major advantage of using the
digital based PFM is the data read by the meter can be stored
easily for other applications or studies. This paper presents the
development of a cost effective digital PFM which is based on
an analogue-to-digital converter (ADC) provided with
ratiometric facilities. Generally, the digital power factor meter
consists of four main parts which are power supply, inputs
circuit, signal processing, and the display part. A signal
proportional to the peak voltage (Vm) is applied to the
reference input voltage of the ADC, while another signal
proportional to the product of the peak voltage (Vm) and
power factor is applied to the analogue input. Both signals are
processed through various operational amplifier based circuits
such as averager, zero detector, and differentiator. The
developed digital PFM has been tested and performed for
single phase laboratory measurements with three decimal
digits display on a liquid crystal display (LCD) unit. The
results achieved validate the functionality of the developed
digital PFM.

Development of a cost-effective op-amp based digital power factor meter

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Development of a cost-effective op-amp based digital power factor meter