Impact of replacing thermal power plants by renewable energy on the power system

Nassar, Ibrahim A.; Abdella, Mahmoud M.

doi:10.1016/j.tsep.2018.02.002

Cited by 20 publications

(5 citation statements)

References 4 publications

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“…The main advantage of SVCs over simple mechanically switched compensation schemes is their near-instantaneous response to change in the system voltage. For this reason they are often operated at close to their zero-point in order to maximize the reactive power correction [22][23][24][25][26][27]. They are in general cheaper, higher-capacity, faster, and more reliable than dynamic compensation schemes such as synchronous compensators (condensers).…”

Section: Static Var Compensatormentioning

confidence: 99%

Improving the voltage quality of Abu Hummus network in Egypt

Nassar

Seif

ElAttar³

2020

IJECE

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In this paper the performance of the electrical network of Egypt is studied by considering a small part on the network (Abu Hummus city). The transmission network of Abu Hummus city was created for 66 kV, 11 kV, and 0.4 kV in the digital simulation and electrical network calculation (DIgSILENT power factory software) to study the voltage profiles. The load flow operational analysis was performed to obtain the voltage magnitudes at every bus bar. The voltage magnitudes in 11 kV and 0.4 kV networks were 10% to 15% less than the nominal value due to overloading off the transmission lines and the voltage magnitudes in 66 kV was within permissible limits. By using automatic tap-changing transformer or Static VAR System, the main idea of this paper is to obtain the voltage profiles at every bus bar to improve the voltage quality of the networks, so as to achieve better voltage profiles on the low voltage side without much effect on high voltage side under various operating conditions.

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Section: Static Var Compensatormentioning

confidence: 99%

Improving the voltage quality of Abu Hummus network in Egypt

Nassar

Seif

ElAttar³

2020

IJECE

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“…Power system schedulers employ Energies 2023, 16, 5498 2 of 34 different scheduling approaches to equilibrate the generation and load demand. However, wind power uncertainty often necessitates supplementary operational reserves from conventional power stations, amplifying operational expenses and carbon dioxide emissions [1,2]. To tackle this problem, it is crucial to harness the potential of wind power to offer system services in active power-balancing operations, similar to conventional power systems.…”

Section: Introductionmentioning

confidence: 99%

Wind Farms and Flexible Loads Contribution in Automatic Generation Control: An Extensive Review and Simulation

Ullah

Aslam

et al. 2023

Energies

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With the increasing integration of wind energy sources into conventional power systems, the demand for reserve power has risen due to associated forecasting errors. Consequently, developing innovative operating strategies for automatic generation control (AGC) has become crucial. These strategies ensure a real-time balance between load and generation while minimizing the reliance on operating reserves from conventional power plant units. Wind farms exhibit a strong interest in participating in AGC operations, especially when AGC is organized into different regulation areas encompassing various generation units. Further, the integration of flexible loads, such as electric vehicles and thermostatically controlled loads, is considered indispensable in modern power systems, which can have the capability to offer ancillary services to the grid through the AGC systems. This study initially presents the fundamental concepts of wind power plants and flexible load units, highlighting their significant contribution to load frequency control (LFC) as an important aspect of AGC. Subsequently, a real-time dynamic dispatch strategy for the AGC model is proposed, integrating reserve power from wind farms and flexible load units. For simulations, a future Pakistan power system model is developed using Dig SILENT Power Factory software (2020 SP3), and the obtained results are presented. The results demonstrate that wind farms and flexible loads can effectively contribute to power-balancing operations. However, given its cost-effectiveness, wind power should be operated at maximum capacity and only be utilized when there is a need to reduce power generation. Additionally, integrating reserves from these sources ensures power system security, reduces dependence on conventional sources, and enhances economic efficiency.

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“…This emphasizes the influence of wind power's uncertain behavior on reserve requirements. To optimize the utilization of wind power resources effectively, it is essential to instill flexibility into electric vehicles (EVs), allowing them to actively engage in the demand-supply equilibrium as needed [2][3][4].…”

Section: Introductionmentioning

confidence: 99%

Enhancing Grid Operation with Electric Vehicle Integration in Automatic Generation Control

Ullah,

Diaz-Londono

et al. 2023

Energies

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Wind energy has been recognized as a clean energy source with significant potential for reducing carbon emissions. However, its inherent variability poses substantial challenges for power system operators due to its unpredictable nature. As a result, there is an increased dependence on conventional generation sources to uphold the power system balance, resulting in elevated operational costs and an upsurge in carbon emissions. Hence, an urgent need exists for alternative solutions that can reduce the burden on traditional generating units and optimize the utilization of reserves from non-fossil fuel technologies. Meanwhile, vehicle-to-grid (V2G) technology integration has emerged as a remedial approach to rectify power capacity shortages during grid operations, enhancing stability and reliability. This research focuses on harnessing electric vehicle (EV) storage capacity to compensate for power deficiencies caused by forecasting errors in large-scale wind energy-based power systems. A real-time dynamic power dispatch strategy is developed for the automatic generation control (AGC) system to integrate EVs and utilize their reserves optimally to reduce reliance on conventional power plants and increase system security. The results obtained from this study emphasize the significant prospects associated with the fusion of EVs and traditional power plants, offering a highly effective solution for mitigating real-time power imbalances in large-scale wind energy-based power systems.

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Impact of replacing thermal power plants by renewable energy on the power system

Cited by 20 publications

References 4 publications

Improving the voltage quality of Abu Hummus network in Egypt

Improving the voltage quality of Abu Hummus network in Egypt

Wind Farms and Flexible Loads Contribution in Automatic Generation Control: An Extensive Review and Simulation

Enhancing Grid Operation with Electric Vehicle Integration in Automatic Generation Control

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