scholarly journals An IOT-Enabled Generator for Power Monitoring and Load Management with Power Factor Improvement

2021 ◽  
Vol 12 (1) ◽  
pp. 33
Author(s):  
Ghulam Shabir Memon ◽  
Syed Saeed Jaffer ◽  
Shoaib Zaidi ◽  
Muhammad Mohsin Sheikh ◽  
Muhammad Umair Jabbar ◽  
...  
Keyword(s):  
Power Factor ◽  
Current Transformer ◽  
Vital Role ◽  
Load Management ◽  
Residential Areas ◽  
Inductive Load ◽  
Power Monitoring ◽  
Fuel Flow ◽  
Fuel Level ◽  
Power Factor Improvement

The quality of power supply and reliability play a vital role in the smooth operation and maintenance of commercial use. These requirements have significant applications when dealing with residential areas, hospitals, industries, educational sectors, banks and airports, etc. In this regard, backup diesel generators are considered the most important source for an uninterrupted supply of electricity. However, there is an emergent need to avoid sudden shutdown of generators in the events of overload, shortage of fuel flow, service interval and lagging of power factor. These common problems can be addressed through monitoring of power generator parameters, for instance, real time remote monitoring to measure the health of the generator, the problem of load management due to high demand of power during peak hours and power factor improvement due to exceeding inductive load. In this paper, our proposed architecture—based on an IOT solution—consists of different sensors, namely a current transformer for measuring load, fuel gauge for fuel level monitoring, and temperature measurement with the energy module to determine the power factor of the system. Our proposed system is operated and tested on a real trolley-mounted 25 KVA generator.

scholarly journals Power Factor Improvement Using Automatic Power Factor Compensation (APFC) Device for Medical Industries in Malaysia

2018 ◽  
Vol 150 ◽  
pp. 01004
Author(s):  
Maryam Nabihah Zaidi ◽  
Adlan Ali
Keyword(s):  
Power Factor ◽  
Reactive Power ◽  
Cost Effective ◽  
Inductive Load ◽  
Increase Energy Efficiency ◽  
Programmable Device ◽  
Compensation Device ◽  
The Cost ◽  
Power Factor Improvement ◽  
Energy Network

This paper present the project designed to correcting power factor for medical industries in Malaysia automatically. Which with hope to make the cost and energy usage efficient, because the energy source are depleting due to increase in population. Power factor is the ratio of real power and apparent power. This definition is mathematically represented as kW/kVA where kW is active power and kVA is apparent power (active + reactive). Reactive power is the non-working power generated by the magnetic and inductive load to generate magnetic flux. The increase in reactive power increase the apparent power so the power factor will decrease. Low pF will cause the industry to meet high demand thus making it less efficient. The main aim of this project is to increasing the current power factor of medical industries from 0.85 to 0.90. Power factor compensation contribute to reduction in current-dependent losses and increase energy efficiency while expanding the reliability of planning for future energy network. As technology develops, the gradual cost and efficiency penalty should reduce. Therefore, automatic power factor compensation device should become cost-effective and smaller device over time. That is the reason this project is using programmable device as it is a miniature architecture device.

scholarly journals Rancang Bangun Kapasitor Bank Otomatis Berbasis Mikrokontroler ATmega 328P Untuk Perbaikan Faktor Daya

2018 ◽  
Vol 5 (1) ◽  
pp. 157
Author(s):  
Putu Angga Juliantara ◽  
I Wayan Arta Wijaya ◽  
Cok Gede Indra Partha
Keyword(s):  
Power Factor ◽  
Reactive Power ◽  
Voltage Sensor ◽  
Current Sensor ◽  
Inductive Load ◽  
Load Current ◽  
Non Invasive ◽  
Power Factor Improvement ◽  
Lcd Displays ◽  
Minimum System

Inductive load with low power factor has led to the greater load current so that it is required a power factor improvement. Improvement of power factor in inductive load can be carried out by installing capacitor according to required proportion. Installation of capacitors can be used in parallel or series to electric source.The method of making design is divided into two parts, namely, the first is the designing of hardware and the second is the designing of the software. The designing of hardware consists of designing the power supply circuit, driver relay circuit, LCD circuit, minimum system circuit of ATmega 328P, capacitor bank circuit, current sensor circuit and voltage sensor circuit. The sensors used in this study were a non-invasive type SCT013-010 current sensor and a voltage sensor of a 500 mA type zero transformer. The design of software was in the form of work program tools that use the application of Arduino IDE. LCD displays the readout values of voltage, load current, active power, apparent power, reactive power and power factor. The ATmega 328P microcontroller processes data and determines the working relay so that the purpose of power factor value by cos phi ? 0.85 is achieved. The results achieved in this research is the design of automatic bank capacitor based on microcontroller of ATmega 328P can improve power factor by conducting injection capacitor to raise the power factor value according to PLN standard by cos phi ? 0.85 by connecting capacitor to the source of PLN paralleled by a single phase inductive load.

Boost Ratio and Power Factor Improvement in Cockcroft-Walton Circuit with Diode Junction Capacitor

2016 ◽  
Vol 136 (12) ◽  
pp. 991-996 ◽  
Author(s):  
Masataka Minami ◽  
Takeshi Ito ◽  
Shin-ichi Motegi ◽  
Masakazu Michihira
Keyword(s):  
Power Factor ◽  
Power Factor Improvement

scholarly journals Effectiveness of a Power Factor Correction Policy in Improving the Energy Efficiency of Large-Scale Electricity Users in Ghana

Energies ◽  
2019 ◽  
Vol 12 (13) ◽  
pp. 2582 ◽  
Author(s):  
Samuel Lotsu ◽  
Yuichiro Yoshida ◽  
Katsufumi Fukuda ◽  
Bing He
Keyword(s):  
Energy Efficiency ◽  
Power Factor ◽  
Large Scale ◽  
Regression Discontinuity ◽  
Power Factor Correction ◽  
Energy Crisis ◽  
Regression Discontinuity Design ◽  
The Government ◽  
Power Factor Improvement ◽  
The Impact

Confronting an energy crisis, the government of Ghana enacted a power factor correction policy in 1995. The policy imposes a penalty on large-scale electricity users, namely, special load tariff (SLT) customers of the Electricity Company of Ghana (ECG), whose power factor is below 90%. This paper investigates the impact of this policy on these firms’ power factor improvement by using panel data from 183 SLT customers from 1994 to 1997 and from 2012. To avoid potential endogeneity, this paper adopts a regression discontinuity design (RDD) with the power factor of the firms in the previous year as a running variable, with its cutoff set at the penalty threshold. The result shows that these large-scale electricity users who face the penalty because their power factor falls just short of the threshold are more likely to improve their power factor in the subsequent year, implying that the power factor correction policy implemented by Ghana’s government is effective.

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