Battery-Equivalent DC Supply from Leakage Current: PV to Transformer-less Inverter Topology

2016 ◽  
Vol 7 (4) ◽  
pp. 1193
Author(s):  
M. N. H. Khan ◽  
K. J. Ahmad ◽  
M. S. Zahan ◽  
M. N. Hasan
Keyword(s):  
Leakage Current ◽  
Electricity Generation ◽  
Peak Level ◽  
Current Transformer ◽  
Solar Panels ◽  
Remote Areas ◽  
The World ◽  
Electronic Load ◽  
Pv Generation ◽  
Inverter Topology

<p class="IEEEAbtract">Solar panels are highly used for electricity generation, which can be gotten through switching-based transformer-less inverters. Hence, grid system with no galvanic-isolation, is taking the peak level in the world, which is effective and delivers power with enhanced efficiency. The PV generation presented here is for stand-alone system installed in remote areas on when and as the resulting power gets connected to electronic load installation instead of being tied to the grid. In this paper will be discussed the use of leakage current. Transformer-less inverter topology for exploring the issue of common mode (CMV) voltage development, which can be utilized as a Battery-Equivalent DC Supply after adding on places as when found suitable for such installations.</p>

scholarly journals PV-Transformer-Less Inverter Topology for Battery-Equivalent DC Supply from Leakage Current

2016 ◽  
Vol 6 (5) ◽  
pp. 2025
Author(s):  
Md. N. H. Khan ◽  
Md. T. Anowar ◽  
Md. D. Hossen ◽  
Md. M. Alam ◽  
K. J. Ahmad
Keyword(s):  
Leakage Current ◽  
Current Flow ◽  
Solar Panels ◽  
Leakage Currents ◽  
Dc Voltage ◽  
Core Components ◽  
Circuit Component ◽  
Power Inverters ◽  
Rectifier Circuits ◽  
Inverter Topology

<p>Solar panels used for electricity generation have got inverters as their core components. Such inverters are made from switching devices coupled with additional circuit component configured in a transformer-less topology in recent reported works. A transformer-less topology suffers from the drawbacks of lack of isolation leading to leakage current flow from various points of it down to ground. The leakage in inverters might be troublesome as it may lead to loss in power, and may cause malfunctioning of analog devices normally used in power inverters. In this work, we identify possible leakage currents in a given transformer-less topology using the circuit analysis principles. The conversion of so obtained leakage currents into a useful DC voltage is carried out in this work. This work focuses on converting leakage current into small DC voltage in the range of ~1.1004V using recently reported rectifier circuits, supplying a load of 200Ω in the mW range. Although small in magnitude, such voltage sources could be used for battery charging purposes or driving small loads.</p>

scholarly journals RER Based Hybrid Technology for power Generation System: Pollution Free from GHG

2018 ◽  
Vol 10 (02) ◽  
pp. 81-86
Author(s):  
Santosh Kumar Suman ◽  
Aishvarya Narain ◽  
Swati Maurya
Keyword(s):  
Power Generation ◽  
Electricity Generation ◽  
Fossil Fuels ◽  
Solar Panels ◽  
Generation System ◽  
Hybrid Technology ◽  
Technology System ◽  
Wind Generators ◽  
The World ◽  
Power Generation System

This paper is presented to observe the conversion of renewable strength resources (RER) into electric power in a standalone hybrid electricity generation system. Recent electricity generation scenarios all over the world are not eco-friendly because the generation systems are by and large depending on fossil fuels that produce greenhouse gasoline (GHG) which contributes to worldwide warming. In this, the aggregate of two electricity resources is taking location i.e. Wind and solar energy. Solar panels are used for converting solar power and wind generators are used for converting wind power into strength. This electrical electricity era can function for numerous purposes. Generation of strength will take place at an affordable cost. This paper provides the Renewable Energy Based Hybrid Technology for Power technology that extracts the renewable energies in Sun and Wind to generate power. System manage relies particularly at the microcontroller. It ensures the optimal utilization of assets and consequently improves the efficiency as related to their person mode of the technology system. Also, it will increase the reliability and decreases the dependence on one unmarried source. This hybrid solarwind energy generating machine is appropriate for industries and additionally for home areas with reasonable price without unfavorable the natural stability like Pollution Free from GHG.

Switching Algorithm for Leakage Current Reduction in a PV- No Transformer Inverter System

2016 ◽  
Vol 4 (1) ◽  
pp. 52
Author(s):  
M. N. H. Khan ◽  
M. R. Hasan ◽  
M. K. Alam
Keyword(s):  
Leakage Current ◽  
Electricity Generation ◽  
Pulse Width Modulation ◽  
Solar Power ◽  
Photovoltaic Panel ◽  
Switching Algorithm ◽  
Commercial Applications ◽  
Current Reduction ◽  
Inverter Topology ◽  
Domestic Level

<p>Electricity generation purposes renewable energy brings a important role especially Photovoltaic (PV) panels that can be covered our basic energy (electricity) needs. This photovoltaic panels cover a domestic level (solar power for home), commercially (solar power for commercial applications) or at the community level.  Here used this photovoltaic panel as an input of PV-transformer-less inverter topology which has been compared with existed H6 transformer-less inverter topology. It’s possible to reduce the leakage current with inclined the output voltage that has been shown here by using proposed topology.  This topology is made by using two extra switches with filter. Moreover, overall system actually verified with Pulse Width Modulation (PWM) switching technique.<em> </em></p>

PV-Transformer-Less Inverter Topology for Battery-Equivalent DC Supply from Leakage Current

2016 ◽  
Vol 6 (5) ◽  
pp. 2025
Author(s):  
Md. N. H. Khan ◽  
Md. T. Anowar ◽  
Md. D. Hossen ◽  
Md. M. Alam ◽  
K. J. Ahmad
Keyword(s):  
Leakage Current ◽  
Current Flow ◽  
Solar Panels ◽  
Leakage Currents ◽  
Dc Voltage ◽  
Core Components ◽  
Circuit Component ◽  
Power Inverters ◽  
Rectifier Circuits ◽  
Inverter Topology

<p>Solar panels used for electricity generation have got inverters as their core components. Such inverters are made from switching devices coupled with additional circuit component configured in a transformer-less topology in recent reported works. A transformer-less topology suffers from the drawbacks of lack of isolation leading to leakage current flow from various points of it down to ground. The leakage in inverters might be troublesome as it may lead to loss in power, and may cause malfunctioning of analog devices normally used in power inverters. In this work, we identify possible leakage currents in a given transformer-less topology using the circuit analysis principles. The conversion of so obtained leakage currents into a useful DC voltage is carried out in this work. This work focuses on converting leakage current into small DC voltage in the range of ~1.1004V using recently reported rectifier circuits, supplying a load of 200Ω in the mW range. Although small in magnitude, such voltage sources could be used for battery charging purposes or driving small loads.</p>

scholarly journals Application of solar energy in various construction industries

2020 ◽  
Vol 164 ◽  
pp. 13004
Author(s):  
Artem Subbotin ◽  
Viktoriya Larina ◽  
Vasilisa Salmina ◽  
Anastasiya Arzumanyan
Keyword(s):  
Energy Source ◽  
Solar Energy ◽  
Video Surveillance ◽  
Human Activity ◽  
Power Supply ◽  
Continuous Monitoring ◽  
The Sun ◽  
Solar Panels ◽  
Remote Areas ◽  
The World

This article discusses the use of the sun as an energy source. The most innovative and useful applications for various branches of human activity are presented today, as well as prospects for the development of this technology. Solar panels are used all over the world, and this article offers one of the options for using solar energy. This option can solve many problems of power supply in various remote areas from civilization, providing the most inaccessible places for Central power supply with lighting and video surveillance, allowing continuous monitoring of objects, which will help ensure safety for nature and humans. Video surveillance cameras and lighting powered by solar energy are economical to use, safe for the environment, and easy to install and operate.

Proposed PV Transformer-Less Inverter Topology Technique for Leakage Current Reduction

2016 ◽  
Vol 7 (3) ◽  
pp. 936
Author(s):  
M. N. H. Khan ◽  
M.H. Delwar ◽  
Md. A. Kabir ◽  
M.S. Zahan ◽  
K. J. Ahmad ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Leakage Current ◽  
Output Voltage ◽  
Current Issue ◽  
Rural And Remote ◽  
Remote Areas ◽  
Pv Panel ◽  
Rural And Remote Areas ◽  
Current Reduction ◽  
Inverter Topology

Importance and demand of using renewable energy is dramatically escalated globally. Hence, the use of renewable energy is going to touch in peak. This demand is varying according to the site choosing. For instance, Wind is preferable where air is following highly as well as solar recommended place is high sun ray reducing places. Especially, the renewable system is highly recommended for electrification issues where it’s possible to produce the electricity for fulfilling rural and remote areas electricity problem.  The photovoltaic (PV) panel of connecting with transformer based system is popular where some limitations are occurred especially cost and weight. In contrast, in this paper is focusing these issues where the transformer-less inverter system is used. Here will discuss some transformer-based and transformer-less inverter topologies and the leakage current issue which is occurred when transformer-less inverter system is used. Moreover, here is proposed a topology for reducing the leakage current after doing switching technique in both 50% and 75% duty cycle where output voltage remains quite same.

The Economic Price of Natural Gas in Pakistan (Notes & Comments)

1974 ◽  
Vol 13 (4) ◽  
pp. 481-484
Author(s):  
J. Faaland ◽  
J. R. Parkinson
Keyword(s):  
Natural Gas ◽  
World Bank ◽  
Electricity Generation ◽  
Irrigate Land ◽  
Hydro Power ◽  
Power Resources ◽  
The World Bank ◽  
The World ◽  
Economic Price ◽  
Tarbela Dam

The World Bank Study," Water and Power Resources of West Pakistan" [1], is one of the most thorough-going and sophisticated of its type. In re¬reading it we have been struck by a curious argument related to the real benefits to be expected from the construction of the Tarbela dam. It was designed to produce electricity as well as to irrigate land and it was necessary to estimate the benefits that the electricity would confer. One way of doing this was to estimate the saving that would be made by using hydro-power instead of natural gas or imported fuel, for electricity generation. This meant that an appropriate set of prices had to be estimated for Pakistan's supply of natural gas. The way in which this was done was, to say the least, unusual. The relevant passage justi¬fying the approach adopted is as follows:

scholarly journals Price-Efficiency Relationship for Photovoltaic Systems on a Global Basis

2015 ◽  
Vol 2015 ◽  
pp. 1-12 ◽  
Author(s):  
Mehmet Sait Cengiz ◽  
Mehmet Salih Mamiş
Keyword(s):  
Power Systems ◽  
Electricity Generation ◽  
Economic Viability ◽  
Photovoltaic Systems ◽  
The World ◽  
The Future ◽  
Potential Factors ◽  
Technology Lifecycle ◽  
Price Analysis ◽  
The Cost

Solar energy is the most abundant, useful, efficient, and environmentally friendly source of renewable energy. In addition, in recent years, the capacity of photovoltaic electricity generation systems has increased exponentially throughout the world given an increase in the economic viability and reliability of photovoltaic systems. Moreover, many studies state that photovoltaic power systems will play a key role in electricity generation in the future. When first produced, photovoltaic systems had short lifetimes. Currently, through development, the technology lifecycle of photovoltaic systems has increased to 20–25 years. Studies showed that photovoltaic systems would be broadly used in the future, a conclusion reached by considering the rapidly decreasing cost of photovoltaic systems. Because price analysis is very important for energy marketing, in this study, a review of the cost potential factors on photovoltaic panels is realized and the expected cost potential of photovoltaic systems is examined considering numerous studies.

scholarly journals Mohajer (camp-e-forsat)

2019 ◽  
Vol 3 (02) ◽  
pp. e2697
Author(s):  
Anna Knappe ◽  
Amir Jan ◽  
Laura Böök
Keyword(s):  
Asylum Seeker ◽  
Asylum Seekers ◽  
Remote Areas ◽  
Detention Centers ◽  
The People ◽  
The World ◽  
Loan Word ◽  
Umbilical Cords ◽  
Asylum Seekers And Refugees

Mohajer (camp-e-forsat) was filmed in Forssa asylum seeker reception center in Finland, together with a recently arrived group of Hazara asylum seekers from Afghanistan. In Mohajer (camp-e-forsat) the people who are labeled as asylum seekers and refugees, redefine themselves with the word mohajer. Mohajer is a loan word from Arabic, and in Persian it means anyone or anything migrating from one place to another.  A camp is a place where mohajers live in a state of waiting. Mohajers are asylum seekers, refugees, and other migrants in precarious situations and their camps are reception centers, detention centers, and temporary shelters. Camps are often located in remote areas, effectively isolating the individuals living in them. They are facilities for storing humans, full of invisible walls, and windows to remind people that the world they can see through them is out of their reach. Cobra: “When someone asks me where I’m from, I say I’m from Afghanistan, but I’ve never been there. Mohajer means not belonging anywhere, not where you are and not where you’re from or your parents are from. My husband says that we’re born mohajers. There is no other name for us. When they ask your name, you should say your name is mohajer. Our umbilical cords are cut with the word mohajer. Even in hospitals, when a new Afghan child is born, they say a new mohajer was born. They don’t say this woman’s child was born, they say one Afghan mohajer was born. Those two words, Afghan and mohajer, are attached together, it’s always Afghan mohajer. Then many who have migrated, try to detach themselves from the word mohajer. But in a new country, you’re still a mohajer.”

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