Abdul Sattar Saand - Academia.edu (original) (raw)

Papers by Abdul Sattar Saand

Sustainability, Sep 9, 2023

This article is an open access article distributed under the terms and conditions of the Creative... more This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY

Engineering, Technology & Applied Science Research, Apr 9, 2022

In this paper, a modified Koch curve monopole antenna is proposed for the dual-band Wireless Loca... more In this paper, a modified Koch curve monopole antenna is proposed for the dual-band Wireless Local Area Network (WLAN) and its performance has been compared with the conventional printed Koch-curve monopole antenna. Both the antennas have been contrived, and their simulated return loss and radiation pattern results have been validated with the measurements. Antenna #1 is designed on the geometrical basis of a conventional Koch-curve monopole antenna. Moreover, the shape of antenna # 1 is bent with a two-step rotation process to yield antenna #2. There are two advantages to this geometrical modification: Firstly, the unique rotation in antenna #2 has further increased the mutual coupling between the segments of the Koch-curve geometry, and thus improved the impedance matching. Secondly, due to its geometric configuration that enhanced its ground plane size, the proposed antenna #2 has been able to demonstrate consistent simulation and measurement results. The compact ground plane in antenna #1 has been identified as the primary reason for the disagreement between the simulated and measured return loss results. The presented antennas have also been studied for the variation of indentation angles: θ=30 and θ=60.

IEEE Access, Dec 31, 2022

The prototype development of an automatic and floating structured hydro power plant constitutes a... more The prototype development of an automatic and floating structured hydro power plant constitutes a pioneering initiative aimed at addressing the critical issue of energy scarcity in remote areas. This research is centered on creation of an innovative and sustainable energy solution that capitalizes on diverse water flow conditions. It involves design and construction of a floating hydro power plant that seamlessly integrates a Pico hydro turbine, generator, and control system. The IoT technology is incorporated to enable real-time monitoring and visualization of essential electrical parameters through mobile app. In light of the escalating global demand for renewable energy solutions, this research holds immense significance. By extending access to electricity to off-grid communities, especially those residing in remote regions where conventional energy infrastructure is impractical, the proposed floating hydro power plant offers a reliable, eco-friendly power source. Its deployment in rivers and water bodies underscores its adaptability and potential to significantly alleviate energy deficits in under-served areas. As the world grapples with the pressing need for a transition toward sustainable energy sources, this project serves as a beacon of ingenuity and progress. By broadening the scope of the original research and exploring avenues for further enhancement, this endeavor underscores the commitment to a future where accessible, clean, and efficient power generation can transform the lives of communities plagued by energy scarcity. The outcomes and implications of this research endeavor not only contribute to the field of renewable energy but also provide a foundation for future innovations in sustainable power generation systems.

Deployment of Multiple Input and Multiple Output (MIMO) relay transmission technique is an impera... more Deployment of Multiple Input and Multiple Output (MIMO) relay transmission technique is an imperative amendment in wireless networks to increase capacity and coverage of the existing base stations. The merger of MIMO and relaying techniques are becoming integral part of various wireless networks such 3G, 4G, LTE advanced and massive MIMO. The performance of relay assisted MIMO channels depends on the relay receive and transmit processing design. The relay processing is classified as linear and non-linear processing techniques. The non-linear techniques are optimal but for practical implementation they are difficult as they are high complex in nature. Therefore, preference is given to linear techniques resulting in simple, efficient and high performance relaying transmission methods

Sindh University Research Journal, 2016

Organization’s profitability is directly proportional to customer satisfaction. Sustainable compe... more Organization’s profitability is directly proportional to customer satisfaction. Sustainable competitive advantage can only be attained through services excellence and quality products. The effect of the antecedents of service quality on customer satisfaction has been under discussion among researchers since long. The primary aim of this study is to investigate the antecedent of customer satisfaction in the telecommunication industry of Pakistan. Primary data was gathered from telecom services’ walk-in customers at various telecom service providers’ service centers. In an effort to measure whether users of telecom services are satisfied with services offered by various telecom operators in Pakistan, the proposed model was tested on the basis of responses received from 236 users. Data was collected from three major cities of Pakistan, i.e. Islamabad, Karachi and Lahore through random distribution of structured questionnaire. Obtained data was analyzed using Structural Equation Modelin...

The power generation everywhere in the world is mostly generated from nonrenewable technology sou... more The power generation everywhere in the world is mostly generated from nonrenewable technology source particularly fossil fuel. So, these resources will be reduced to utilizing in future. Among these power generation technologies, Photovoltaic (PV) system have got great position by several reasons. This paper gives general review of PV module performance and effect of dust deposition. The deposition of dust has significant effect in transmittance of solar irradiation in the PV module. The dust deposition effect of multiple areas is discussed in literature review. KeywordsPV module, Dust deposition effect, Cleaning technique Date Received 21-09-2020 Date Accepted 24-10-2020 Date Published 18-12-2020

Critical review is the state of art in relay assisted multiple inputs and multiple outputs (MIMO)... more Critical review is the state of art in relay assisted multiple inputs and multiple outputs (MIMO) systems. The ergodic capacity evaluation for MIMO and relay based MIMO System. The review provides an overview and comparison of various relaying strategies and relay precoding techniques currently adapted for achieving upper bound capacity and performance in transparent relay assisted MIMO networks.

The geographical and environmental constraints it is usually not reliable to provide high data ra... more The geographical and environmental constraints it is usually not reliable to provide high data rate wireless broadband access to the mariners in the deep sea. This limitation can be settled by introducing the multiple input and multiple output (MIMO) relay assisted maritime wireless network that can extend the reach of internet to the ships deep into the sea. The design challenges are many-fold. However, the focus would be on developing signal processing based theoretical model for a linear MIMO transceiver with perfect channel state information (CSI) utilizing amplify-forward (AF) relaying with maximum range and capacity. The novelty is in utilizing multiple relays cooperatively where spatial multiplexing both at transmitter and receiver would enhance diversity. The ZF based theoretical model so developed will be more helpful to reduce the interference effect.

Pakistan being one of the largest countries in the world for providing internet service, further ... more Pakistan being one of the largest countries in the world for providing internet service, further 3G and 4G services have revolutionized the internet usage, the organizations from commercial to non-commercial and from government to social facilitates their customers/visitors by providing updated information all the time. The detail study of these websites has proved that most of the websites among these organizations possess web breaches. Little or no security measures have been taken while developing these websites. In this research we provides detail analysis by using penetration testing tools to identify webbreaches and suggest security measures for identified vulnerabilities while developing websites.

Sindh University Research Journal, 2016

This paper investigates a linear beam forming technique aiming to maximize ergodic capacity for t... more This paper investigates a linear beam forming technique aiming to maximize ergodic capacity for transparent relay MIMO network without direct link. Multiple antennas are deployed on each node of the network. A linear receive beam forming at relay is developed using signal-to- interference-plus-noise ratio (SINR) maximization. Also a signal to leakage plus noise ratio (SLNR) based precoding is employed at the relay downlink. A computationally efficient Fukunaga Koontz Transform is used as a tool to solve optimization problem. A sufficiently large number of numerical experiments are conducted to validate the enactment of proposed beam forming technique. The results obtained using MATLAB confirm that, the proposed relay beam forming and relay downlink precoding schemes offer substantial performance gain in terms of ergodic capacity over existing methods.

Sindh University Research Journal, 2016

This research work presents an optimal and efficient implementation of 3D shape recovery of objec... more This research work presents an optimal and efficient implementation of 3D shape recovery of objects based on image focus analysis. A modified SML operator known as Cross Sum Modified Laplacian (XSML) operator is employed which contains diagonal component and improves the quality performance as compared to conventional SML operator. The Gaussian interpolation technique is used to model the focus measure function. In order to analyze, accomplish and validate the proposed algorithm several synthetically refocused real objects with varying textures are used. An intensive analysis in carried out based on quantitative and qualitative evaluation by using conventional methods and statistical metrics. Both evaluated quantitative and qualitative frameworks ensure and validate the optimality and efficiency of suggested algorithm.

In this paper various approaches of controlling the speed of DC motor have been discussed, resist... more In this paper various approaches of controlling the speed of DC motor have been discussed, resistive control of DC series motor with PLC (Programmable Logic Controller) is proposed. DC motor has wide range of speed control used in different places such as robotics, auto-mobiles, drilling, cutting and domestic’s purposes etc. Armature voltage can be varied by inserting the resistance in series with armature of DC series motor. In this paper the conventional armature resistive control and PLC armature resistive controlled techniques have been exploited for controlling the speed the motor. PLC is used to control the armature resistance which decreases the armature voltage for changing the speed. The outcomes validate the efficiency of the projected method for the motor speed control.

Lighting and image acquisition is main source that affect the image quality. Details of images ar... more Lighting and image acquisition is main source that affect the image quality. Details of images are lost due improper acquisition of image modalities. There has been a renaissance of interest in the Retinex computation in the past decades, especially in its use for image enhancement. In this paper, we processed retinal colour images which suffered from varying-low contrast and shadows; images were processed through the single scale and multi-scales Retinex with gamma correction or a contrast adjustment factor to enhance, remove the shadows. The newly developed image enhancement technique gave better results with removal of the shadows and provided good contrast ratio with good improved noise level also. In this research work, 16 images were analysed with the proposed image enhancement technique. It gave better enhanced images and with more information as compared to their original images with improved 3db noise level. This result in improvement in the contrast leads to an analysis mo...

Journal of Applied and Emerging Sciences, 2021

The solar irradiation falling on PV-module that converted into heat hence the reducing efficiency... more The solar irradiation falling on PV-module that converted into heat hence the reducing efficiency. The dust deposition decreases efficiency and resist the amount of solar radiation interacting on surface of PV-panel. The mismatch position placed of PV string can make the mutual shading between the PV-Module, Due to this reason of shading the totally efficiency of PV system falls. To overcome all mentioned problem, in this paper the review of environmental factor and their latest minimizing techniques for optimizing performance of PV-Module is discussed. This paper merely focused on the review of cooling, Cleaning and shading effect techniques.

Journal of Applied and Emerging Sciences, 2020

The power generation everywhere in the world is mostly generated from nonrenewable technology sou... more The power generation everywhere in the world is mostly generated from nonrenewable technology source particularly fossil fuel. So, these resources will be reduced to utilizing in future. Among these power generation technologies, Photovoltaic (PV) system have got great position by several reasons. This paper gives general review of PV module performance and effect of dust deposition. The deposition of dust has significant effect in transmittance of solar irradiation in the PV module. The dust deposition effect of multiple areas is discussed in literature review.

International Journal of Advanced Computer Science and Applications, 2017

In this paper the harmonics measurement for computer loads is analyzed and passive filters are de... more In this paper the harmonics measurement for computer loads is analyzed and passive filters are designed for mitigating those harmonics. The filters are designed to meet the IEEE standard 519-1992 which is recommended for harmonic current limits. Personal computers are non-linear loads that generate harmonics due to non-sinusoidal current present at entrance of power supply. In this work the personal computers in laboratory are taken as domestic load and harmonics generated by them cannot be ignored which are simulated using MATLAB/Simulink. The purpose is developing analytical method for the design of the passive harmonic filter that absorbs current harmonics caused by computer loads. The findings of this study would be supportive to make the source current free from harmonics thereby reducing the THD. Simulation results of proposed design method of passive filters shows attractive results for harmonic reduction with profit of upgrade of power factor. Design of passive harmonic filters by using non active power can be simple cost effective solution for systems.

International Journal of Advanced Computer Science and Applications, 2018

It is realized that one of the defective subsystems adding to the tremendous budgetary loss in Po... more It is realized that one of the defective subsystems adding to the tremendous budgetary loss in Power Supply Company is the conventional metering and charging framework. Mistakes get presented at each phase of charging the energy rates, similar to blunders with conventional meters, reading errors by human while noticing the consumed energy; and blunder during the preparation of paid and the due bills. The solution for this downside is a prepaid charging or billing framework of consumed energy. Most of the developing countries are shifting their conventional energy management practices to the modern one by replacing the old and conventional energy meters with the smart meters outfitted with the prepaid facility to quantify the power consumption so as to decrease the income deficits looked by utilities because of customer unwillingness to make consumed energy payments on time. Our proposed design embedded with Arduino and GSM technology is advancement over conventional energy meter, which enables consumer to effectively manage their electricity usage. The system performance is good with the acquired results. An earlier charging will undoubtedly get rid of the issues of unpaid bills and human mistakes in meter readings, along these lines guaranteeing justified income for the utility.

NFC-IEFR Journal of Engineering and Scientific Research, 2017

One hour-ahead load forecasts are critically important for the reliable and cost-effective operat... more One hour-ahead load forecasts are critically important for the reliable and cost-effective operation of modern power systems, especially, in the deregulated economy, where effective on-spot price fixing is always a major concern. In this paper, a time series modeling for these very short term forecasts is proposed by using a new auto-regressive algorithm, specifically designed for appropriate handling of large data records. The model divides the bulky data record into short segments and searches for the AR coefficients that simultaneously model the data with the least mean squared error. This approach can accurately forecast the one hour-ahead and one day-ahead loads of the weekdays. The proposed method can provide more accurate results than the conventional techniques, such as, standard AR-based algorithms, Burg and the seasonal Box-Jenkins ARIMA (SARIMA) and many of the intelligent hybrid approaches, where artificial neural networks are combined with evolutionary search methods. Obtained results from extensive testing of the proposed model confirm the validity of the developed approach. Three years load demand data of New South Wales (NSW) Australian power grid from 2011 to 2013 are used in the experimentation.

Research Journal of Applied Sciences, Engineering and Technology, 2016

In this study critical problem of voltage sag propagation through transformer winding in distribu... more In this study critical problem of voltage sag propagation through transformer winding in distribution network is taken into account. The sage propagation problem depends on the unsymmetrical fault type and winding connections of the distribution transformer. The characterization of the sage propagation is effected due to the zero sequence components. The detection of the voltage sage through sequence detection method is used to solve the problem. The obtained results reflect the characterization of voltage sag propagated from primary to the secondary winding of transformer during various connection schemes. The method adopted would be useful to analysis the power supply network for power quality in distribution transmission network.

Sustainability, Sep 9, 2023

This article is an open access article distributed under the terms and conditions of the Creative... more This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY

Engineering, Technology & Applied Science Research, Apr 9, 2022

In this paper, a modified Koch curve monopole antenna is proposed for the dual-band Wireless Loca... more In this paper, a modified Koch curve monopole antenna is proposed for the dual-band Wireless Local Area Network (WLAN) and its performance has been compared with the conventional printed Koch-curve monopole antenna. Both the antennas have been contrived, and their simulated return loss and radiation pattern results have been validated with the measurements. Antenna #1 is designed on the geometrical basis of a conventional Koch-curve monopole antenna. Moreover, the shape of antenna # 1 is bent with a two-step rotation process to yield antenna #2. There are two advantages to this geometrical modification: Firstly, the unique rotation in antenna #2 has further increased the mutual coupling between the segments of the Koch-curve geometry, and thus improved the impedance matching. Secondly, due to its geometric configuration that enhanced its ground plane size, the proposed antenna #2 has been able to demonstrate consistent simulation and measurement results. The compact ground plane in antenna #1 has been identified as the primary reason for the disagreement between the simulated and measured return loss results. The presented antennas have also been studied for the variation of indentation angles: θ=30 and θ=60.

IEEE Access, Dec 31, 2022

The prototype development of an automatic and floating structured hydro power plant constitutes a... more The prototype development of an automatic and floating structured hydro power plant constitutes a pioneering initiative aimed at addressing the critical issue of energy scarcity in remote areas. This research is centered on creation of an innovative and sustainable energy solution that capitalizes on diverse water flow conditions. It involves design and construction of a floating hydro power plant that seamlessly integrates a Pico hydro turbine, generator, and control system. The IoT technology is incorporated to enable real-time monitoring and visualization of essential electrical parameters through mobile app. In light of the escalating global demand for renewable energy solutions, this research holds immense significance. By extending access to electricity to off-grid communities, especially those residing in remote regions where conventional energy infrastructure is impractical, the proposed floating hydro power plant offers a reliable, eco-friendly power source. Its deployment in rivers and water bodies underscores its adaptability and potential to significantly alleviate energy deficits in under-served areas. As the world grapples with the pressing need for a transition toward sustainable energy sources, this project serves as a beacon of ingenuity and progress. By broadening the scope of the original research and exploring avenues for further enhancement, this endeavor underscores the commitment to a future where accessible, clean, and efficient power generation can transform the lives of communities plagued by energy scarcity. The outcomes and implications of this research endeavor not only contribute to the field of renewable energy but also provide a foundation for future innovations in sustainable power generation systems.

Deployment of Multiple Input and Multiple Output (MIMO) relay transmission technique is an impera... more Deployment of Multiple Input and Multiple Output (MIMO) relay transmission technique is an imperative amendment in wireless networks to increase capacity and coverage of the existing base stations. The merger of MIMO and relaying techniques are becoming integral part of various wireless networks such 3G, 4G, LTE advanced and massive MIMO. The performance of relay assisted MIMO channels depends on the relay receive and transmit processing design. The relay processing is classified as linear and non-linear processing techniques. The non-linear techniques are optimal but for practical implementation they are difficult as they are high complex in nature. Therefore, preference is given to linear techniques resulting in simple, efficient and high performance relaying transmission methods

Sindh University Research Journal, 2016

Organization’s profitability is directly proportional to customer satisfaction. Sustainable compe... more Organization’s profitability is directly proportional to customer satisfaction. Sustainable competitive advantage can only be attained through services excellence and quality products. The effect of the antecedents of service quality on customer satisfaction has been under discussion among researchers since long. The primary aim of this study is to investigate the antecedent of customer satisfaction in the telecommunication industry of Pakistan. Primary data was gathered from telecom services’ walk-in customers at various telecom service providers’ service centers. In an effort to measure whether users of telecom services are satisfied with services offered by various telecom operators in Pakistan, the proposed model was tested on the basis of responses received from 236 users. Data was collected from three major cities of Pakistan, i.e. Islamabad, Karachi and Lahore through random distribution of structured questionnaire. Obtained data was analyzed using Structural Equation Modelin...

The power generation everywhere in the world is mostly generated from nonrenewable technology sou... more The power generation everywhere in the world is mostly generated from nonrenewable technology source particularly fossil fuel. So, these resources will be reduced to utilizing in future. Among these power generation technologies, Photovoltaic (PV) system have got great position by several reasons. This paper gives general review of PV module performance and effect of dust deposition. The deposition of dust has significant effect in transmittance of solar irradiation in the PV module. The dust deposition effect of multiple areas is discussed in literature review. KeywordsPV module, Dust deposition effect, Cleaning technique Date Received 21-09-2020 Date Accepted 24-10-2020 Date Published 18-12-2020

Critical review is the state of art in relay assisted multiple inputs and multiple outputs (MIMO)... more Critical review is the state of art in relay assisted multiple inputs and multiple outputs (MIMO) systems. The ergodic capacity evaluation for MIMO and relay based MIMO System. The review provides an overview and comparison of various relaying strategies and relay precoding techniques currently adapted for achieving upper bound capacity and performance in transparent relay assisted MIMO networks.

The geographical and environmental constraints it is usually not reliable to provide high data ra... more The geographical and environmental constraints it is usually not reliable to provide high data rate wireless broadband access to the mariners in the deep sea. This limitation can be settled by introducing the multiple input and multiple output (MIMO) relay assisted maritime wireless network that can extend the reach of internet to the ships deep into the sea. The design challenges are many-fold. However, the focus would be on developing signal processing based theoretical model for a linear MIMO transceiver with perfect channel state information (CSI) utilizing amplify-forward (AF) relaying with maximum range and capacity. The novelty is in utilizing multiple relays cooperatively where spatial multiplexing both at transmitter and receiver would enhance diversity. The ZF based theoretical model so developed will be more helpful to reduce the interference effect.

Pakistan being one of the largest countries in the world for providing internet service, further ... more Pakistan being one of the largest countries in the world for providing internet service, further 3G and 4G services have revolutionized the internet usage, the organizations from commercial to non-commercial and from government to social facilitates their customers/visitors by providing updated information all the time. The detail study of these websites has proved that most of the websites among these organizations possess web breaches. Little or no security measures have been taken while developing these websites. In this research we provides detail analysis by using penetration testing tools to identify webbreaches and suggest security measures for identified vulnerabilities while developing websites.

Sindh University Research Journal, 2016

This paper investigates a linear beam forming technique aiming to maximize ergodic capacity for t... more This paper investigates a linear beam forming technique aiming to maximize ergodic capacity for transparent relay MIMO network without direct link. Multiple antennas are deployed on each node of the network. A linear receive beam forming at relay is developed using signal-to- interference-plus-noise ratio (SINR) maximization. Also a signal to leakage plus noise ratio (SLNR) based precoding is employed at the relay downlink. A computationally efficient Fukunaga Koontz Transform is used as a tool to solve optimization problem. A sufficiently large number of numerical experiments are conducted to validate the enactment of proposed beam forming technique. The results obtained using MATLAB confirm that, the proposed relay beam forming and relay downlink precoding schemes offer substantial performance gain in terms of ergodic capacity over existing methods.

Sindh University Research Journal, 2016

This research work presents an optimal and efficient implementation of 3D shape recovery of objec... more This research work presents an optimal and efficient implementation of 3D shape recovery of objects based on image focus analysis. A modified SML operator known as Cross Sum Modified Laplacian (XSML) operator is employed which contains diagonal component and improves the quality performance as compared to conventional SML operator. The Gaussian interpolation technique is used to model the focus measure function. In order to analyze, accomplish and validate the proposed algorithm several synthetically refocused real objects with varying textures are used. An intensive analysis in carried out based on quantitative and qualitative evaluation by using conventional methods and statistical metrics. Both evaluated quantitative and qualitative frameworks ensure and validate the optimality and efficiency of suggested algorithm.

In this paper various approaches of controlling the speed of DC motor have been discussed, resist... more In this paper various approaches of controlling the speed of DC motor have been discussed, resistive control of DC series motor with PLC (Programmable Logic Controller) is proposed. DC motor has wide range of speed control used in different places such as robotics, auto-mobiles, drilling, cutting and domestic’s purposes etc. Armature voltage can be varied by inserting the resistance in series with armature of DC series motor. In this paper the conventional armature resistive control and PLC armature resistive controlled techniques have been exploited for controlling the speed the motor. PLC is used to control the armature resistance which decreases the armature voltage for changing the speed. The outcomes validate the efficiency of the projected method for the motor speed control.

Lighting and image acquisition is main source that affect the image quality. Details of images ar... more Lighting and image acquisition is main source that affect the image quality. Details of images are lost due improper acquisition of image modalities. There has been a renaissance of interest in the Retinex computation in the past decades, especially in its use for image enhancement. In this paper, we processed retinal colour images which suffered from varying-low contrast and shadows; images were processed through the single scale and multi-scales Retinex with gamma correction or a contrast adjustment factor to enhance, remove the shadows. The newly developed image enhancement technique gave better results with removal of the shadows and provided good contrast ratio with good improved noise level also. In this research work, 16 images were analysed with the proposed image enhancement technique. It gave better enhanced images and with more information as compared to their original images with improved 3db noise level. This result in improvement in the contrast leads to an analysis mo...

Journal of Applied and Emerging Sciences, 2021

The solar irradiation falling on PV-module that converted into heat hence the reducing efficiency... more The solar irradiation falling on PV-module that converted into heat hence the reducing efficiency. The dust deposition decreases efficiency and resist the amount of solar radiation interacting on surface of PV-panel. The mismatch position placed of PV string can make the mutual shading between the PV-Module, Due to this reason of shading the totally efficiency of PV system falls. To overcome all mentioned problem, in this paper the review of environmental factor and their latest minimizing techniques for optimizing performance of PV-Module is discussed. This paper merely focused on the review of cooling, Cleaning and shading effect techniques.

Journal of Applied and Emerging Sciences, 2020

The power generation everywhere in the world is mostly generated from nonrenewable technology sou... more The power generation everywhere in the world is mostly generated from nonrenewable technology source particularly fossil fuel. So, these resources will be reduced to utilizing in future. Among these power generation technologies, Photovoltaic (PV) system have got great position by several reasons. This paper gives general review of PV module performance and effect of dust deposition. The deposition of dust has significant effect in transmittance of solar irradiation in the PV module. The dust deposition effect of multiple areas is discussed in literature review.

International Journal of Advanced Computer Science and Applications, 2017

In this paper the harmonics measurement for computer loads is analyzed and passive filters are de... more In this paper the harmonics measurement for computer loads is analyzed and passive filters are designed for mitigating those harmonics. The filters are designed to meet the IEEE standard 519-1992 which is recommended for harmonic current limits. Personal computers are non-linear loads that generate harmonics due to non-sinusoidal current present at entrance of power supply. In this work the personal computers in laboratory are taken as domestic load and harmonics generated by them cannot be ignored which are simulated using MATLAB/Simulink. The purpose is developing analytical method for the design of the passive harmonic filter that absorbs current harmonics caused by computer loads. The findings of this study would be supportive to make the source current free from harmonics thereby reducing the THD. Simulation results of proposed design method of passive filters shows attractive results for harmonic reduction with profit of upgrade of power factor. Design of passive harmonic filters by using non active power can be simple cost effective solution for systems.

International Journal of Advanced Computer Science and Applications, 2018

It is realized that one of the defective subsystems adding to the tremendous budgetary loss in Po... more It is realized that one of the defective subsystems adding to the tremendous budgetary loss in Power Supply Company is the conventional metering and charging framework. Mistakes get presented at each phase of charging the energy rates, similar to blunders with conventional meters, reading errors by human while noticing the consumed energy; and blunder during the preparation of paid and the due bills. The solution for this downside is a prepaid charging or billing framework of consumed energy. Most of the developing countries are shifting their conventional energy management practices to the modern one by replacing the old and conventional energy meters with the smart meters outfitted with the prepaid facility to quantify the power consumption so as to decrease the income deficits looked by utilities because of customer unwillingness to make consumed energy payments on time. Our proposed design embedded with Arduino and GSM technology is advancement over conventional energy meter, which enables consumer to effectively manage their electricity usage. The system performance is good with the acquired results. An earlier charging will undoubtedly get rid of the issues of unpaid bills and human mistakes in meter readings, along these lines guaranteeing justified income for the utility.

NFC-IEFR Journal of Engineering and Scientific Research, 2017

One hour-ahead load forecasts are critically important for the reliable and cost-effective operat... more One hour-ahead load forecasts are critically important for the reliable and cost-effective operation of modern power systems, especially, in the deregulated economy, where effective on-spot price fixing is always a major concern. In this paper, a time series modeling for these very short term forecasts is proposed by using a new auto-regressive algorithm, specifically designed for appropriate handling of large data records. The model divides the bulky data record into short segments and searches for the AR coefficients that simultaneously model the data with the least mean squared error. This approach can accurately forecast the one hour-ahead and one day-ahead loads of the weekdays. The proposed method can provide more accurate results than the conventional techniques, such as, standard AR-based algorithms, Burg and the seasonal Box-Jenkins ARIMA (SARIMA) and many of the intelligent hybrid approaches, where artificial neural networks are combined with evolutionary search methods. Obtained results from extensive testing of the proposed model confirm the validity of the developed approach. Three years load demand data of New South Wales (NSW) Australian power grid from 2011 to 2013 are used in the experimentation.

Research Journal of Applied Sciences, Engineering and Technology, 2016

In this study critical problem of voltage sag propagation through transformer winding in distribu... more In this study critical problem of voltage sag propagation through transformer winding in distribution network is taken into account. The sage propagation problem depends on the unsymmetrical fault type and winding connections of the distribution transformer. The characterization of the sage propagation is effected due to the zero sequence components. The detection of the voltage sage through sequence detection method is used to solve the problem. The obtained results reflect the characterization of voltage sag propagated from primary to the secondary winding of transformer during various connection schemes. The method adopted would be useful to analysis the power supply network for power quality in distribution transmission network.