A Probabilistic Methodology for Estimating Reserve Requirement and Optimizing Its Components in Systems With High Wind Penetration

Eltohamy, Mohammed Saber; Talaat, H.; Moteleb, Mohammed Said Abdel; Mekhamer, S. F.; Omran, Walid A.

doi:10.1109/access.2022.3211305

Cited by 4 publications

(2 citation statements)

References 60 publications

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“…Photovoltaic (PV), wind turbine (WT), and biomass (BM) are popular renewable DG technologies [1,2]. Furthermore, there are technical, fnancial, and environmental advantages to integrating DGs into an already-existing EDN [3,4]. Because of the many benefts of this technology, EDN was being integrated with DG technology.…”

Section: Introductionmentioning

confidence: 99%

A Novel Technique for High-Performance Grid Integrated with Restricted Placement of PV-DG considering Load Change

Soliman,

Emara,

Hassan

2024

Journal of Electrical and Computer Engineering

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The distributed generation (DG) units’ penetrations in power systems are becoming more prevalent. The majority of recent studies are now focusing on how to best position and size PV-DG units to further improve grid performance. In actuality, and as a result of ideal design requirements, the size and position of the PV are chosen and executed, and no luxury for a change. In this work, the PV-DG unit sizing and location were determined and placed beforehand. Also, load change is a fact and is to be highly considered in the grid. Studying the grid performance and how to enhance it under these conditions is the main objective of this study. This examination was executed using an IEEE 15 bus system in a MATLAB environment. Distribution lines were proposed to connect the PV-DG from its restricted location to the required bus. The purpose of this study is therefore to evaluate the grid’s performance with various actual loads on each bus while connecting a PV-DG unit through a distribution line while taking the available transfer capacity (ATC) of the network into account to find the optimally connected bus. The results said that the optimally connected bus is changed by changing the load which is not doable on land. The results obtained indicate that breaking up PV-DG units into smaller units in the same location and connecting them to every bus was the best option for improving grid performance.

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Section: Introductionmentioning

confidence: 99%

A Novel Technique for High-Performance Grid Integrated with Restricted Placement of PV-DG considering Load Change

Soliman,

Emara,

Hassan

2024

Journal of Electrical and Computer Engineering

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“…The operation of power systems is based on probabilities and risks, so reserves are generally estimated to cover fluctuations within a certain probability [44]. Recently, most approaches in the calculation of reserves have moved toward probabilistic methodologies [45] [46]. In [47], the stochastic and deterministic models have been compared to represent the short-term fluctuation of wind and solar power in a European long-term least-cost optimization model that is used to address investments for the interconnected European nations into 2050.…”

Section: Introductionmentioning

confidence: 99%

Characterization of Short-Term Wind Power Variations and Estimation of Reserve Requirements for High Wind Generation Shares

Eltohamy,

Abdel Moteleb,

Talaat

et al. 2023

IJEEI

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The need to deal with variability in wind power output is one of the greatest challenges connected with adopting a considerable amount of wind power into power grids. Power system operators need to acquire more information on this variability, which can be utilized in the mitigation of high ramping events, especially when these events synchronize with a large error in the prediction, ensuring flexibility and reliability in the power system besides the economic considerations. The paper analyses short-term variability in output power using actual data obtained from aggregated wind farms from 2015 to 2020, where power ramping characteristics are described using a variety of measurements. The use of the standard deviation of short-term wind power variation as a reserve measure will be investigated in detail since there is no consensus about the ideal confidence level value as a multiplier of σ, which ranges from 3 to 6 times σ. The paper addresses how large this confidence level should be, as well as developing a data-driven approach for estimating this reserve with increasing wind shares and evaluating the proper distribution of short-term wind variation. The results illustrate that the stochastic variations in wind power can retain many of their characteristics from year to year, even when the share of wind capacity is raised.

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A novel approach for power ramps classification in wind generation

Eltohamy,

Abdel Moteleb,

Talaat

et al. 2023

Sci Rep

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Ramp events are characterized by large power changes in a short period and increase with increasing renewable generation. Even with hourly forecasts, their predictions are still unreliable. Thus, grid operators should classify these power ramps to understand their expected occurrence periods and range to balance them. Previous research was based on a binary classification of ramp events, which assumed that ramp events were similar to one another, which is not true. Some other studies used randomization and non-causative classification methods. Hence, a more accurate method is still needed. The paper presents two new methods for ramp event classification. The first method depends on the standard deviation score, and the second method assigns a score to each ramp, which depends on the maximum value of the historical power ramps that occurred within the studied time period. The new classification methods are applied to the output power of Belgium’s aggregated wind farms from 2015 to 2019, and the relative frequency of each ramp category is determined. The results revealed that, even though the capacity of wind installations has doubled, ramping behaviour is nearly the same in all years.

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A Probabilistic Methodology for Estimating Reserve Requirement and Optimizing Its Components in Systems With High Wind Penetration

Abstract: Date of publication xxxx 00, 0000, date of current version xxxx 00, 0000.

Cited by 4 publications

References 60 publications

A Novel Technique for High-Performance Grid Integrated with Restricted Placement of PV-DG considering Load Change

A Novel Technique for High-Performance Grid Integrated with Restricted Placement of PV-DG considering Load Change

Characterization of Short-Term Wind Power Variations and Estimation of Reserve Requirements for High Wind Generation Shares

A novel approach for power ramps classification in wind generation

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