Hierarchical energy management and control to improve the reliability and efficiency of wind farms connected to the grid

Belabbas, Belkacem; Denaï, Mouloud; Allaoui, Tayeb

doi:10.1002/2050-7038.12400

Cited by 3 publications

(2 citation statements)

References 18 publications

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“…As a key infrastructure for energy transmission, the energy efficiency level of the power grid is directly related to the efficiency of energy utilization and environmental sustainability. With the aggravation of the global energy crisis and the emphasis on environmental protection, improving the energy efficiency of the power grid has become an urgent problem to be solved [1][2]. As an effective statistical method, principal component analysis can help us to identify the main factor that has the greatest impact on the energy efficiency of the power grid from the many possible influencing factors [3].…”

Section: Introductionmentioning

confidence: 99%

Exploration of grid energy efficiency influencing factors by applying principal component analysis approach

Li,

Sun,

Zhang

et al. 2024

Applied Mathematics and Nonlinear Sciences

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This paper focuses on the problem of power losses in the transmission, transformation, distribution and marketing segments of the power system, and explores how to effectively improve the energy efficiency of the power grid to optimize the cost management of the power grid. The article uses principal component analysis to accurately diagnose the energy efficiency status of the grid, and analyzes the multiple factors affecting grid losses and their degree of influence. It is found that the total loss in 10km transmission line when wind power access reaches 328kw, and the complete loss of wind power access is higher than photovoltaic access under the condition of different line lengths, which are 315kw, 321kw, and 328kw, respectively. In the use of iron transmission line, the average loss at the current of 400A is 89.600W, which is higher than using aluminum alloy material by 66.200 W. If energy-efficient aluminum alloy fittings are fully utilized in transmission lines, the average annual power saving can be up to 301,368 kWh. The study shows that it is crucial to analyze the factors affecting the energy efficiency of power grids during the planning and construction stage of the power grids.

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Section: Introductionmentioning

confidence: 99%

Exploration of grid energy efficiency influencing factors by applying principal component analysis approach

Li,

Sun,

Zhang

et al. 2024

Applied Mathematics and Nonlinear Sciences

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“…The study is further extended in Reference 8 to analyze the influence of lightning overvoltage phenomena on six pulse converters. The operating voltage is brought within the limit to ensure the reliability and efficiency of the converter‐based system 9,10 . Further, to assess the reliability of an HVDC system under the action of lightning impulse (LI) phenomena, a test has been performed on a high voltage (HV) divider.…”

Section: Introductionmentioning

confidence: 99%

Reliability assessment for DFIG ‐based WECS considering the impact of 3‐phase fault and lightning impulse voltage

Kumar

Sarita

Saket

et al. 2021

Int Trans Electr Energ Syst

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Summary The assimilation of wind energy into the conventional grid brings several considerable challenges when uncertainties are considered. The uncertainties, including the occurrence of three‐phase fault and lightning fault, are considered to analyze the reliability and performance of the wind energy system. So, a study is a prerequisite for the power system, including wind farm (WF), voltage source converter (VSC), and lightning voltage and current phenomena. Therefore, the present work deals with the generation of lightning envelopes of impulse voltage and current and rectangular pulse current by considering the realistic equivalent circuit. The generated impulse voltage acting as a lightning fault is then implemented on the 3‐phase terminals of grid‐connected Doubly Fed Induction Generator (DFIG) based Wind Integrated Power System (WIPS), which includes six wind turbines (WT) of 1.5 MW each and 120 kV, 60 Hz grid. A 3‐phase short circuit fault is applied further to compare the output responses of the DFIG‐based WIPS. The system's behavior under both faults is observed by determining the controller gain values. The gains, including proportional (kp) and integral (ki) of a sixth‐order transfer function for Wind Turbine Generator (WTG), have been determined by using particle swarm optimization (PSO) algorithm. A reliability assessment of VSC considering DC voltage is done using the Monte‐Carlo (MC) method, considering the lightning impulse voltage (LIV) as a major cause of converter failure. It is found that the DFIG‐based WIPS achieves considerable responses under both types of faults by obtaining the optimal controller values. It has been also observed that the reduction in the number of failures that occurred in VSC during the lightning strike improves the system's reliability.

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Power Control and Management of DFIGs Wind Farm Equipped with Aggregation Methods by Using Local Supervision Unit Based on S-Function Builder

Atallah

Mezouar

Belgacem

et al. 2022

J Control Autom Electr Syst

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Hierarchical energy management and control to improve the reliability and efficiency of wind farms connected to the grid

Cited by 3 publications

References 18 publications

Exploration of grid energy efficiency influencing factors by applying principal component analysis approach

Exploration of grid energy efficiency influencing factors by applying principal component analysis approach

Reliability assessment for DFIG ‐based WECS considering the impact of 3‐phase fault and lightning impulse voltage

Power Control and Management of DFIGs Wind Farm Equipped with Aggregation Methods by Using Local Supervision Unit Based on S-Function Builder

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