“Smart Grid” is a modern concept which refers to the conversion of the mainstream or typical elec... more “Smart Grid” is a modern concept which refers to the conversion of the mainstream or typical electric power grid to a modern power grid. This new conversion is a foreseeable solution to the power system problems of the modern century. Rejuvenation of the current electric power distribution system is an important step to implement the Smart Grid technology. So, distribution system engineers should be acquainted with the knowledge of Smart Distribution System. Also the customers should acknowledge the benefits that they will be enjoying from this modernized power system. This paper gives a brief detail of Smart Grid. The focus of this paper is to familiarize with Smart Grid perspective to Bangladesh where the power system is very detailed, complex and quite aged. The distribution system loss is high and the customers face daily planned load shedding. To address the power crisis and other problems, the conventional distribution system should be restructured to smart distribution system which is a part of Smart Grid. Though it is a very new and expensive concept, yet Bangladesh Government has showed positive approach. The main objective of this paper is to discuss the Smart Distribution System, its importance in Bangladesh power system and the progress & prospects.
Gradual technical advancement and rapidly decreasing costs have led to widespread deployment of s... more Gradual technical advancement and rapidly decreasing costs have led to widespread deployment of solar photovoltaic (PV) systems. In Australia, distributed PV systems make up the vast majority of installed PV capacity. In remote communities, distributed PV systems offer a supplementary solution to existing diesel-based electricity generation. Remote electricity networks, being different from urban networks primarily due to their limited generation capacity and spinning reserve are likely to be critically affected by the variability characteristics of PV generation. Significant technical issues are observed in remote electricity networks as PV penetration levels increase, such as reduced power quality, inadequate diesel generator dispatch for spinning reserve, increased complexities in network operation and management, unintended islanding and even system blackouts. This paper reviews the current electrification scenarios in remote Australian networks and focuses on the impacts and technical challenges of distributed PV deployment and the control strategies adopted by remote area power utilities. Some suggestions and recommendations, such as the development of robust control mechanisms incorporating PV forecasting technology, modern network equipment, real-time measurements and network ancillary services provided by inverter coupled generation systems to enhance networks’ operational stability and reliability are also presented. This review is of benefit to scientific researchers, investors and different stakeholders, who wish to have a better understanding of distributed PV systems’ deployment scenarios into remote electricity networks.
Abstract This paper intends to look deeper into finding an ideal mobile broadband solution. Spec... more Abstract This paper intends to look deeper into finding an ideal mobile broadband solution. Special stress has been put in the South Asian region through some comparative analysis. Proving their competency in numerous aspects, WiMAX and LTE already have ...
Electric vehicles (EVs) have received widespread attention in the automotive industry as the most... more Electric vehicles (EVs) have received widespread attention in the automotive industry as the most promising solution for lowering CO2 emissions and mitigating worldwide environmental concerns. However, the effectiveness of EVs can be affected due to battery health degradation and performance deterioration with lifespan. Therefore, an advanced and smart battery management technology is essential for accurate state estimation, charge balancing, thermal management, and fault diagnosis in enhancing safety and reliability as well as optimizing an EV’s performance effectively. This paper presents an analytical and technical evaluation of the smart battery management system (BMS) in EVs. The analytical study is based on 110 highly influential articles using the Scopus database from the year 2010 to 2020. The analytical analysis evaluates vital indicators, including current research trends, keyword assessment, publishers, research categorization, country analysis, authorship, and collaborat...
“Smart Grid” is a modern concept which refers to the conversion of the mainstream or typical elec... more “Smart Grid” is a modern concept which refers to the conversion of the mainstream or typical electric power grid to a modern power grid. This new conversion is a foreseeable solution to the power system problems of the modern century. Rejuvenation of the current electric power distribution system is an important step to implement the Smart Grid technology. So, distribution system engineers should be acquainted with the knowledge of Smart Distribution System. Also the customers should acknowledge the benefits that they will be enjoying from this modernized power system. This paper gives a brief detail of Smart Grid. The focus of this paper is to familiarize with Smart Grid perspective to Bangladesh where the power system is very detailed, complex and quite aged. The distribution system loss is high and the customers face daily planned load shedding. To address the power crisis and other problems, the conventional distribution system should be restructured to smart distribution system which is a part of Smart Grid. Though it is a very new and expensive concept, yet Bangladesh Government has showed positive approach. The main objective of this paper is to discuss the Smart Distribution System, its importance in Bangladesh power system and the progress & prospects.
Gradual technical advancement and rapidly decreasing costs have led to widespread deployment of s... more Gradual technical advancement and rapidly decreasing costs have led to widespread deployment of solar photovoltaic (PV) systems. In Australia, distributed PV systems make up the vast majority of installed PV capacity. In remote communities, distributed PV systems offer a supplementary solution to existing diesel-based electricity generation. Remote electricity networks, being different from urban networks primarily due to their limited generation capacity and spinning reserve are likely to be critically affected by the variability characteristics of PV generation. Significant technical issues are observed in remote electricity networks as PV penetration levels increase, such as reduced power quality, inadequate diesel generator dispatch for spinning reserve, increased complexities in network operation and management, unintended islanding and even system blackouts. This paper reviews the current electrification scenarios in remote Australian networks and focuses on the impacts and technical challenges of distributed PV deployment and the control strategies adopted by remote area power utilities. Some suggestions and recommendations, such as the development of robust control mechanisms incorporating PV forecasting technology, modern network equipment, real-time measurements and network ancillary services provided by inverter coupled generation systems to enhance networks’ operational stability and reliability are also presented. This review is of benefit to scientific researchers, investors and different stakeholders, who wish to have a better understanding of distributed PV systems’ deployment scenarios into remote electricity networks.
Abstract This paper intends to look deeper into finding an ideal mobile broadband solution. Spec... more Abstract This paper intends to look deeper into finding an ideal mobile broadband solution. Special stress has been put in the South Asian region through some comparative analysis. Proving their competency in numerous aspects, WiMAX and LTE already have ...
Electric vehicles (EVs) have received widespread attention in the automotive industry as the most... more Electric vehicles (EVs) have received widespread attention in the automotive industry as the most promising solution for lowering CO2 emissions and mitigating worldwide environmental concerns. However, the effectiveness of EVs can be affected due to battery health degradation and performance deterioration with lifespan. Therefore, an advanced and smart battery management technology is essential for accurate state estimation, charge balancing, thermal management, and fault diagnosis in enhancing safety and reliability as well as optimizing an EV’s performance effectively. This paper presents an analytical and technical evaluation of the smart battery management system (BMS) in EVs. The analytical study is based on 110 highly influential articles using the Scopus database from the year 2010 to 2020. The analytical analysis evaluates vital indicators, including current research trends, keyword assessment, publishers, research categorization, country analysis, authorship, and collaborat...
To meet the zero-carbon electricity generation target as part of the sustainable development goal... more To meet the zero-carbon electricity generation target as part of the sustainable development goals (SDG7), remote industrial microgrids worldwide are considering the uptake of more and more renewable energy resources, especially solar PV systems. Estimating the grid PV hosting capacity plays an essential role in designing and planning such microgrids. PV hosting capacity assessment determines the maximum PV capacity suitable for the grid and the appropriate electrical location for PV placement. This research reveals that conventional static criteria to assess the PV hosting capacity fail to ensure the grid’s operational robustness. It hence demands a reduction in the theoretical hosting capacity estimation to ensure grid compatible post-fault voltage and frequency recovery. Energy storage technologies, particularly fast-responsive batteries, can potentially prevent such undesirable scenarios; nevertheless, careful integration is required to ensure an affordable cost of energy. This ...
2017 Australasian Universities Power Engineering Conference (AUPEC), 2017
Conventional RCC uses Type-I compensator or Integrator which cannot track the Maximum Power Point... more Conventional RCC uses Type-I compensator or Integrator which cannot track the Maximum Power Point (MPP) for all the operating condition without Adaptive Gain Tuning. The Type-II compensator based closed loop control scheme of the proposed MPPT makes it robust against all types of disturbances, panel and plant parameter variations. The RCC technique is very simple to implement and the total MPPT controller can be easily implemented using analog circuitry only. However, the challenge lies in designing the compensator as the RCC technique, along with PV panel, exhibits highly non-linear dynamics. Conventional Bode plot technique is used for designing the compensator where the plant parameters (Gain and Phase) are obtained by perturbing the panel operation around the MPP at crossover frequency. This paper proposes a compensator based implementation of Dynamic Maximum Power Point Tracking (MPPT) for rapidly changing irradiation and load variation using Ripple Correlation Control (RCC) technique. The proposed control scheme has a very fast convergence and is very prompt in tracking irradiance variation and load disturbance rejection. The efficacy of the proposed MPPT and the compensator are verified by simulation.
Concerns over growing greenhouse gas (GHG) emissions and fuel prices have prompted researchers to... more Concerns over growing greenhouse gas (GHG) emissions and fuel prices have prompted researchers to look into alternative energy sources, notably in the transportation sector, accounting for more than 70% of carbon emissions. An increasing amount of research on electric vehicles (EVs) and their energy management schemes (EMSs) has been undertaken extensively in recent years to address these concerns. This article aims to offer a bibliometric analysis and investigation of optimized EMSs for EV applications. Hundreds (100) of the most relevant and highly influential manuscripts on EMSs for EV applications are explored and examined utilizing the Scopus database under predetermined parameters to identify the most impacting articles in this specific field of research. This bibliometric analysis provides a survey on EMSs related to EV applications focusing on the different battery storages, models, algorithms, frameworks, optimizations, converters, controllers, and power transmission system...
Beneficiaries prefer renewable energy-based systems over grid-connected electricity. The cost of ... more Beneficiaries prefer renewable energy-based systems over grid-connected electricity. The cost of energy is viewed as the most influential factor while choosing renewable energy systems. Beneficiaries chose to stay linked with renewable energy systems even when they received grid-connected electricity at a lower tariff.Net-metering and feed-in tariff mechanisms, as well as tax cuts and subsidies for renewable energy projects, could be the catalyst for fostering greater uptake of renewables in the electricity generation mix.
Electric vehicles (EVs) have received massive consideration in the automotive industries due to t... more Electric vehicles (EVs) have received massive consideration in the automotive industries due to their improved performance, efficiency and capability to minimize global warming and carbon emission impacts. The utilization of EVs has several potential benefits, such as increased use of renewable energy, less dependency on fossil-fuel-based power generations and energy-storage capability. Although EVs can significantly mitigate global carbon emissions, it is challenging to maintain power balance during charging on-peak hours. Thus, it mandates a comprehensive impact analysis of high-level electric vehicle penetration in utility grids. This paper investigates the impacts of large-scale EV penetration on low voltage distribution, considering the charging time, charging method and characteristics. Several charging scenarios are considered for EVs’ integration into the utility grid regarding power demand, voltage profile, power quality and system adequacy. A lookup-table-based charging ap...
2016 IEEE Innovative Smart Grid Technologies - Asia (ISGT-Asia), 2016
Diesel generators are typically used in remote Australian electricity networks to generate power ... more Diesel generators are typically used in remote Australian electricity networks to generate power for its consumers. Solar PV systems are one of the most common renewable resources due to their gradual technical advancement, decreasing cost and wide application. This study aims to design and model a PV-Diesel power system for a generic remote town in Australia. The electricity generation philosophy using a centralised PV system along with the existing Diesel capacity is modelled and simulated in Hybrid Optimization of Multiple Energy Resources (HOMER) software. The study considers higher levels of PV penetration and conducts a techno-economic analysis of different network configurations to propose a comprehensive electricity network design and generation philosophy, based on the cost of energy (AU$/kWh), the quantity of excess electricity, fuel savings potential and environmental impacts for a remote Australian town.
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