Power Quality of Electrical Distribution Systems Considering PVs, EVs and DSM

Essa, Al; Jasim, Museeb M.

doi:10.1007/s40313-020-00637-1

Cited by 10 publications

(3 citation statements)

References 30 publications

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“…Smart chargers used in the example allow mitigation of the issues in the distribution network and enable controlling the voltage and the current in batteries in order to maximize the batteries lifespan. PQ problems related to overvoltage and network congestion, but not to some other PQ aspects, caused by PVs and EVs could be solved by a strategy of the demand-side management that re-schedules charging loads of EVs using the deterministic programming algorithm based on historical data to maintain network constraints within their boundaries [23]. The proposed scheme is able to mitigate the impact of PVs and EVs on distribution networks by adjusting peak loads accordingly.…”

Section: Introductionmentioning

confidence: 99%

A Comprehensive Analysis of the Voltage Unbalance Factor in PV and EV Rich Non-Synthetic Low Voltage Distribution Networks

Antić

Capuder

Bolfek³

2020

Energies

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With the development of technology and the decrease in prices, power systems are facing a strong growth in the number of end-users with photovoltaics (PVs), battery storages and electric vehicles (EVs). A penetration of low carbon (LC) technologies has an impact not only on the financial aspect, but also on parameters of the power quality (PQ) in the power system. Since most of end-users with renewable energy sources (RES) are connected to a low-voltage (LV) distribution network, there is a high number of single-phase loads and distributed generators (DG) that can cause unwanted effects in LV networks. According to standards, electric energy must be of a certain quality in order to avoid harmful effects on the power system, being both the network or the end-users equipment. One of the PQ parameters is the voltage unbalance. Voltage unbalance occurs in networks with the high share of single-phase loads and generators. Since most loads in households are connected to the only one phase, the voltage unbalance is constantly present in the network, even without LC technologies. Single-phase connected PVs, residential battery storages and EV charging stations can increase voltage unbalance in the system. This paper systematically analyzes a real-world LV network and different stages and shares of connected PVs, residential battery storages and EVs to different phases. The value of the voltage unbalance factor (VUF) is observed for one week in January and August in 10-min intervals. It is shown that connected systems can significantly increase the VUF and potentially cause negative impact on the equipment and the power system as a whole. In turn we analyze a three-phase connection of these new LC technologies and demonstrate how in all analyzed cases PQ values remain within boundaries defined by the EN 50160 and the IEC 61000-3-13.

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Section: Introductionmentioning

confidence: 99%

A Comprehensive Analysis of the Voltage Unbalance Factor in PV and EV Rich Non-Synthetic Low Voltage Distribution Networks

Antić

Capuder

Bolfek³

2020

Energies

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“…Batteries are playing a role in an energy-ecological development through their increased uses, ranging from electric vehicles to grid-scale energy storage systems. Batteries are efficient stationary storage technologies because they are able to enhance energy efficiency of end-user premises, while achieving operational improvements and financial savings [17][18][19][20].…”

Section: Applications Of Lithium-sulfur Batteriesmentioning

confidence: 99%

Applications and Challenges of Lithium-Sulfur Electrochemical Batteries

Essa¹

2024

J. Electrochem. Sci. Technol

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<p>This paper presents applications of lithium-sulfur (Li-S) energy storage batteries, while showing merits and demerits of several techniques to mitigate their electrochemical challenges. Unmanned aerial vehicles, electric cars, and grid-scale energy storage systems represent main applications of Li-S batteries due to their low cost, high specific capacity, and light weight. However, polysulfide shuttle effects, low conductivities, and low coulombic efficiencies signify key challenges of Li-S batteries, causing high volumetric changes, dendritic growths, and limited cycling performances. Solid-state electrolytes, interfacial interlayers, and electrocatalysts denote promising methods to mitigate such challenges. Moreover, nanomaterials have capability to improve kinetic reactions of Li-S batteries based on several properties of nanoparticles to immobilize sulfur in cathodes, stabilizing lithium in anodes while controlling volumetric growths. Li-S energy storage technologies are able to satisfy requirements of future markets for advanced rechargeable batteries with high-power densities and low costs, considering environmentally friendly systems based on renewable energy sources.</p>

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“…Setting up future Smart Grids with AC/DC Hybrid topology was studied in [42] and developed a "stochastic dispatch model" that consists of two stages: First, scheduling the production for the next 24 h and second, determining the import/export schedule, a useful tool that can be used to predict uncertainty in the Smart Grid. A demand side management approach was proposed in [43] with regard to the impact of power quality from photovoltaic and electric vehicles on voltage magnitude and voltage imbalance of residential grids. It proposed a DSM scheme to reschedule the EV consumption and generated power from PV to improve power quality.…”

Section: Total Harmonic Distortion Thd/total Demand Distortion Tddmentioning

confidence: 99%

An Exploratory Study of the Perception of Peer-to-Peer Energy Trading within the Power Distribution Network in the UAE

et al. 2023

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The introduction of Smart Grid resulted in the development of various applications that are built upon the concept of bi-directional flow of electricity and data. One of the Smart Grids pillars is the Distributed Generation (DG) technologies, where customers turn to be prosumers with power generation capability. Another pillar is the Demand Side Management (DSM), which helps control the energy consumption by changing the power usage slots among other peers. DG and DSM have facilitated the sharing of excess power by customers to the grid, and then to their peers through the grid as a trading agent. Although the concept of integrating Peer-to-Peer energy trading with DSM has been explored by scholars and relatively established trading frameworks, there are very limited research performed in respect to the UAE market in terms of its acceptance and readiness towards this energy trading market. This research aims to explore the perception of Peer-to-Peer electricity trading within the Power Distribution Network in the United Arab Emirates. The study will review the Smart Grid network in the UAE and will obtain insights on people’s perception of the transition from classical electricity network to Smart Grid. It will also look into peoples’ perception regarding the transition from being electricity consumers to being electricity producers that trade among peers through semi-structured interviews. This will enhance the understanding of the energy trading market between self-generated power producers connected to a network grid, where the consumer will be utilizing the excess power available in the form of electricity trading, by importing and exporting power, without adding any additional power to the grid. The outcome of the study will provide an insight on the UAE electricity market by designing an electricity trading model that is built upon the following vital factors: power quality, supply reliability, type of integration, peers, and trading time. Furthermore, the study will provide a foundation base to the utilities, as well as individuals, when dealing with the changes in the electricity market structure.

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Power Quality of Electrical Distribution Systems Considering PVs, EVs and DSM

Cited by 10 publications

References 30 publications

A Comprehensive Analysis of the Voltage Unbalance Factor in PV and EV Rich Non-Synthetic Low Voltage Distribution Networks

A Comprehensive Analysis of the Voltage Unbalance Factor in PV and EV Rich Non-Synthetic Low Voltage Distribution Networks

Applications and Challenges of Lithium-Sulfur Electrochemical Batteries

An Exploratory Study of the Perception of Peer-to-Peer Energy Trading within the Power Distribution Network in the UAE

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