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1,386 Results Found

  • Article
  • Open Access
26 Citations
8,132 Views
34 Pages

Quantile Forecasting of Wind Power Using Variability Indices

  • Georgios Anastasiades and
  • Patrick McSharry

5 February 2013

Wind power forecasting techniques have received substantial attention recently due to the increasing penetration of wind energy in national power systems. While the initial focus has been on point forecasts, the need to quantify forecast uncertainty...

  • Article
  • Open Access
31 Citations
6,253 Views
15 Pages

24 October 2011

With the mass introduction of wind power in Northern China, wind power variability has appeared. In this article, both existing electric heat pumps (EHPs) and coal-fired combined heat and power (CHP) facilities, which are generally equipped with extr...

  • Article
  • Open Access
5 Citations
11,143 Views
17 Pages

Analysis of North Sea Offshore Wind Power Variability

  • Aymeric Buatois,
  • Madeleine Gibescu,
  • Barry G. Rawn and
  • Mart A.M.M. Van der Meijden

26 May 2014

This paper evaluates, for a 2030 scenario, the impact on onshore power systems in terms of the variability of the power generated by 81 GW of offshore wind farms installed in the North Sea. Meso-scale reanalysis data are used as input for computing t...

  • Review
  • Open Access
92 Citations
12,348 Views
31 Pages

20 June 2016

This paper reviews the most recent and relevant research into the variability characteristics of wind and solar power resources in Europe. The background for this study is that wind and solar resources will probably constitute major components of the...

  • Article
  • Open Access
5 Citations
3,851 Views
29 Pages

Estimation of the Daily Variability of Aggregate Wind Power Generation in Alberta, Canada

  • Yilan Luo,
  • Deniz Sezer,
  • David Wood,
  • Mingkuan Wu and
  • Hamid Zareipour

24 May 2019

This paper describes a hierarchy of increasingly complex statistical models for wind power generation in Alberta applied to wind power production data that are publicly available. The models are based on combining spatial and temporal correlations. W...

  • Article
  • Open Access
5 Citations
4,721 Views
14 Pages

13 November 2017

Recent developments have emphasized the global impacts of climate change and have renewed commitments in renewable energy and energy meteorology. Wind energy depends largely on prevailing meteorological conditions on both local and large scales, thus...

  • Article
  • Open Access
60 Citations
9,396 Views
18 Pages

Power Control Design for Variable-Speed Wind Turbines

  • Yolanda Vidal,
  • Leonardo Acho,
  • Ningsu Luo,
  • Mauricio Zapateiro and
  • Francesc Pozo

13 August 2012

This paper considers power generation control in variable-speed variable-pitch horizontal-axis wind turbines operating at high wind speeds. A dynamic chattering torque control and a proportional integral (PI) pitch control strategy are proposed and v...

  • Article
  • Open Access
3 Citations
1,265 Views
21 Pages

11 March 2025

This work analyzes high-power wind turbines (WTs) from the Oravita region, Romania. These WTs are based on slip ring induction generator with wound rotor and we propose a modified architecture with two power converters on both the stator and on the r...

  • Article
  • Open Access
4 Citations
4,241 Views
24 Pages

Wind and Wind Power Ramp Variability over Northern Mexico

  • Karla Pereyra-Castro,
  • Ernesto Caetano,
  • Oscar Martínez-Alvarado and
  • Ana L. Quintanilla-Montoya

27 November 2020

The seasonal and diurnal variability of the wind resource in Northern Mexico is examined. Fourteen weather stations were grouped according to the terrain morphology and weather systems that affect the region to evaluate the impact on wind ramps and h...

  • Article
  • Open Access
10 Citations
3,229 Views
25 Pages

Hybrid Wind–PV Frequency Control Strategy under Variable Weather Conditions in Isolated Power Systems

  • Ana Fernández-Guillamón,
  • Guillermo Martínez-Lucas,
  • Ángel Molina-García and
  • Jose-Ignacio Sarasua

19 September 2020

Over the last two decades, variable renewable energy technologies (i.e., variable-speed wind turbines (VSWTs) and photovoltaic (PV) power plants) have gradually replaced conventional generation units. However, these renewable generators are connected...

  • Article
  • Open Access
39 Citations
10,220 Views
12 Pages

23 February 2016

It has recently been shown that using battery storage systems (BSSs) to provide reactive power provision in a medium-voltage (MV) active distribution network (ADN) with embedded wind stations (WSs) can lead to a huge amount of reverse power to an ups...

  • Article
  • Open Access
5 Citations
3,296 Views
18 Pages

11 December 2020

This paper proposes a novel control method for enhancing transient stability by using renewable energy sources (RES). The kinetic energy accumulated in a rotor of variable speed wind generator (VSWG) is proactively used as the active power source, wh...

  • Article
  • Open Access
28 Citations
3,795 Views
18 Pages

1 April 2019

To improve the output characteristics of offshore wind power and to enhance the wind power accommodation, this paper analyzes its output characteristics along the southern coast in China, and then proposes an optimal sizing method of seawater pumped...

  • Article
  • Open Access
8 Citations
2,307 Views
21 Pages

13 July 2020

Distributed wind power (DWP) needs to be consumed locally under a 110 kV network without reverse power flow in China. To maximize the use of DWP, this paper proposes a novel method for capacity planning of DWP with participation of the energy storage...

  • Article
  • Open Access
22 Citations
7,731 Views
13 Pages

25 March 2016

This is the second part of a companion paper on variable reverse power flow (VRPF) in active distribution networks (ADNs) with wind stations (WSs). Here, we propose an electricity market model considering agreements between the operator of a medium-v...

  • Article
  • Open Access
17 Citations
3,543 Views
24 Pages

With high levels of wind energy penetration, the frequency response of isolated power systems is more likely to be affected in the event of a sudden frequency disturbance or fluctuating wind conditions. In order to minimize excessive frequency deviat...

  • Article
  • Open Access
9 Citations
7,744 Views
20 Pages

Consideration of Wind Speed Variability in Creating a Regional Aggregate Wind Power Time Series

  • Lucy C. Cradden,
  • Francesco Restuccia,
  • Samuel L. Hawkins and
  • Gareth P. Harrison

27 February 2014

For the purposes of understanding the impacts on the electricity network, estimates of hourly aggregate wind power generation for a region are required. However, the availability of wind production data for the UK is limited, and studies often rely o...

  • Article
  • Open Access
37 Citations
3,254 Views
25 Pages

Direct Power Control Based on Modified Sliding Mode Controller for a Variable-Speed Multi-Rotor Wind Turbine System Using PWM Strategy

  • Habib Benbouhenni,
  • Zinelaabidine Boudjema,
  • Nicu Bizon,
  • Phatiphat Thounthong and
  • Noureddine Takorabet

18 May 2022

A robust and improved control scheme of a variable speed multi-rotor wind turbine (MRWT) system with a doubly fed asynchronous generator (DFAG) is displayed in this work. In order to improve the performances and effectiveness of the traditional direc...

  • Article
  • Open Access
11 Citations
7,723 Views
16 Pages

31 May 2016

Due to the dynamic process of maximum power point tracking (MPPT) caused by turbulence and large rotor inertia, variable-speed wind turbines (VSWTs) cannot maintain the optimal tip speed ratio (TSR) from cut-in wind speed up to the rated speed. There...

  • Article
  • Open Access
6 Citations
6,201 Views
23 Pages

Low Frequency Oscillations in a Hydroelectric Generating System to the Variability of Wind and Solar Power

  • Beibei Xu,
  • Liuwei Lei,
  • Ziwen Zhao,
  • Wei Jiang,
  • Shu Xiao,
  • Huanhuan Li,
  • Junzhi Zhang and
  • Diyi Chen

19 July 2021

The penetration of multiple integrated renewable energies to the power grid are relevant for decision making in energy policy, environment and business. Such an electricity penetration is affected by the intermittent and volatile characteristics of i...

  • Article
  • Open Access
1 Citations
2,445 Views
48 Pages

30 October 2024

Small wind turbines placed at city locations are affected by variable-speed winds that frequently change direction. Architectural constructions, buildings of different heights and abrupt orography of Cities make the winds that occur at City locations...

  • Article
  • Open Access
27 Citations
2,573 Views
16 Pages

Analysis of the Wind System Operation in the Optimal Energetic Area at Variable Wind Speed over Time

  • Ciprian Sorandaru,
  • Sorin Musuroi,
  • Flaviu Mihai Frigura-Iliasa,
  • Doru Vatau and
  • Marian Dordescu

27 February 2019

Due to high mechanical inertia and rapid variations in wind speed over time, at variable wind speeds, the problem of operation in the optimal energetic area becomes complex and in due time it is not always solvable. No work has been found that analyz...

  • Article
  • Open Access
11 Citations
3,100 Views
16 Pages

1 July 2021

The identification of extreme wind events and their driving forces are crucial to better integrating wind generation into the power system. Recent work related the occurrence of extreme wind events with some weather circulation patterns, enabling the...

  • Article
  • Open Access
16 Citations
3,006 Views
16 Pages

A Controller for Optimum Electrical Power Extraction from a Small Grid-Interconnected Wind Turbine

  • Tania García-Sánchez,
  • Arbinda Kumar Mishra,
  • Elías Hurtado-Pérez,
  • Rubén Puché-Panadero and
  • Ana Fernández-Guillamón

6 November 2020

Currently, wind power is the fastest-growing means of electricity generation in the world. To obtain the maximum efficiency from the wind energy conversion system, it is important that the control strategy design is carried out in the best possible w...

  • Article
  • Open Access
14 Citations
3,955 Views
23 Pages

15 November 2018

Wind power belongs to sustainable and clean energy sources which play a vital role of reducing environment pollution and addressing energy crisis. However, wind power outputs are quite difficult to predict because they are derived from wind speeds, w...

  • Article
  • Open Access
2 Citations
3,082 Views
19 Pages

1 January 2024

Climate change mitigation, adaptation to intensifying hurricanes, and decarbonization challenges in developing countries emphasize the urgent need for resilient high-voltage grids to facilitate the expansion of renewables. This research explores the...

  • Article
  • Open Access
4 Citations
2,710 Views
22 Pages

Offshore Wind Power Resource Assessment in the Gulf of North Suez

  • Shafiqur Rehman,
  • Kashif Irshad,
  • Nasiru I. Ibrahim,
  • Ali AlShaikhi and
  • Mohamed A. Mohandes

25 October 2023

Growing population, industrialization, and power requirements are adversely affecting the environment through increased greenhouse gases resulting from fossil fuel burning. Global greenhouse gas mitigation targets have led nations to promote clean an...

  • Article
  • Open Access
5 Citations
1,998 Views
17 Pages

Windy Sites Prioritization in the Saudi Waters of the Southern Red Sea

  • Shafiqur Rehman,
  • Kashif Irshad,
  • Mohamed A. Mohandes,
  • Ali A. AL-Shaikhi,
  • Azher Hussain Syed,
  • Mohamed E. Zayed,
  • Mohammad Azad Alam,
  • Saïf ed-Dîn Fertahi and
  • Muhammad Kamran Raza

21 November 2024

Offshore wind power resources in the Red Sea waters of Saudi Arabia are yet to be explored. The objective of the present study is to assess offshore wind power resources at 49 locations in the Saudi waters of the Red Sea and prioritize the sites base...

  • Article
  • Open Access
46 Citations
6,980 Views
21 Pages

10 August 2020

Understanding the spatiotemporal complementarity of wind and solar power generation and their combined capability to meet the demand of electricity is a crucial step towards increasing their share in power systems without neglecting neither the secur...

  • Article
  • Open Access
31 Citations
5,841 Views
18 Pages

1 May 2017

Variable speed wind turbines (VSWTs) usually adopt a maximum power point tracking (MPPT) method to optimize energy capture performance. Nevertheless, obtained performance offered by different MPPT methods may be affected by the impact of wind turbine...

  • Article
  • Open Access
8 Citations
2,495 Views
17 Pages

29 November 2022

The energy transition towards renewable energies is crucial for the sustainable development of a society based on hydrocarbons. The current level of penetration and growth of wind energy in electric power systems is evident and many researchers have...

  • Article
  • Open Access
37 Citations
4,120 Views
11 Pages

1 March 2020

The number of wind-generating resources has increased considerably, owing to concerns over the environmental impact of fossil-fuel combustion. Therefore, wind power forecasting is becoming an important issue for large-scale wind power grid integratio...

  • Article
  • Open Access
1,472 Views
12 Pages

26 January 2025

Wind and solar energy sources, while sustainable, are inherently variable in their power generation, posing challenges to grid stability due to their non-dispatchable nature. To address this issue, this study explores the synergistic optimization of...

  • Article
  • Open Access
14 Citations
3,574 Views
25 Pages

An Analysis of a Storage System for a Wind Farm with Ramp-Rate Limitation

  • Guglielmo D’Amico,
  • Filippo Petroni and
  • Salvatore Vergine

5 July 2021

This paper provides evidence on how the variability of the power produced by a wind farm and its revenue are affected by implementing a ramp-rate limitation strategy and by adding a storage device to the system. The wind farm receives penalties whene...

  • Article
  • Open Access
40 Citations
5,692 Views
28 Pages

14 April 2017

Developing a suitable framework for real-time optimal power flow (RT-OPF) is of utmost importance for ensuring both optimality and feasibility in the operation of energy distribution networks (DNs) under intermittent wind energy penetration. The most...

  • Article
  • Open Access
9 Citations
4,733 Views
13 Pages

24 September 2017

This work proposes a novel control scheme for a variable speed wind turbine system based on the permanent magnet synchronous generator. Regions II and III for a wind speed profile are considered, hence the control is designed for maximizing the gener...

  • Article
  • Open Access
29 Citations
2,426 Views
14 Pages

5 January 2023

Considering the volatility and randomness of wind speed, this research suggests an improved hunter-prey optimization (IHPO) algorithm-based extreme learning machine (ELM) short-term wind power prediction model to increase short-term wind power predic...

  • Feature Paper
  • Article
  • Open Access
13 Citations
2,890 Views
20 Pages

Wind power generation has undergone significant development in recent decades due to its environmental advantages and its economic competitiveness. However, its increasing level of penetration is not exempt from drawbacks, such as those derived from...

  • Article
  • Open Access
12 Citations
2,923 Views
19 Pages

20 March 2023

This paper is interested in studying a system consisting of a wind turbine operating at variable wind speeds, and a two-feed asynchronous machine (DFIG) connected to the grid by a stator and fed by a transducer at the side of the rotor. The conductor...

  • Article
  • Open Access
71 Citations
3,462 Views
17 Pages

22 July 2021

A synergetic sliding mode (SSM) approach is designed to address the drawbacks of the direct field-oriented control (DFOC) of the induction generators (IGs) integrated into variable speed dual-rotor wind power (DRWP) systems with the maximum power poi...

  • Article
  • Open Access
2 Citations
4,687 Views
37 Pages

1 June 2022

Colombia has an energy matrix that is mostly hydroelectric and includes renewable energies such as wind power, which represents a minor contribution. The only operational wind farm is in the northern part of the country, where more projects will be i...

  • Article
  • Open Access
20 Citations
2,732 Views
22 Pages

10 April 2022

This study presents a fast terminal synergetic control (FTSC) scheme to investigate the nonlinear control problem of permanent magnet vernier generator (PMVG)-based variable-speed wind energy conversion systems (WECSs). In wind turbines, better speed...

  • Article
  • Open Access
14 Citations
3,946 Views
19 Pages

16 November 2020

The European Union defined ambitious targets for the production of energy from renewable energy sources. Most European markets trade now high levels of variable renewable energy (VRE). Renewable generation increases the variability and uncertainty of...

  • Article
  • Open Access
14 Citations
2,300 Views
23 Pages

Optimal Operation Strategy for Wind–Hydrogen–Water Power Grids Facing Offshore Wind Power Accommodation

  • Zhen Liu,
  • He Wang,
  • Bowen Zhou,
  • Dongsheng Yang,
  • Guangdi Li,
  • Bo Yang,
  • Chao Xi and
  • Bo Hu

4 June 2022

In this study, we utilize the advantages of offshore wind power resources in coastal areas to make up for the shortage of freshwater. At the same time, freshwater can be used as raw material to supply hydrogen energy. An operation strategy considerin...

  • Feature Paper
  • Article
  • Open Access
37 Citations
2,674 Views
26 Pages

Application of Fractional-Order PI Controllers and Neuro-Fuzzy PWM Technique to Multi-Rotor Wind Turbine Systems

  • Habib Benbouhenni,
  • Nicu Bizon,
  • Ilhami Colak,
  • Phatiphat Thounthong and
  • Noureddine Takorabet

In recent years, the methods of controlling electrical machines have been witnessing increasing development to reduce torque and electric current fluctuations in electrical power generation systems from renewable sources such as wind energy. The gene...

  • Feature Paper
  • Article
  • Open Access
24 Citations
6,364 Views
23 Pages

21 January 2019

Wind and solar PV have become the lowest-cost renewable alternatives and are expected to dominate the power supply matrix in many countries worldwide. However, wind and solar are inherently variable renewable energy sources (vRES) and their character...

  • Article
  • Open Access
1 Citations
1,359 Views
24 Pages

This paper discusses the operation and control of a low-voltage DC (LVDC) isolated distribution network powered by distributed generation (DG) from a variable-speed wind turbine induction generator (WTIG) to supply unbalanced AC loads. The system inc...

  • Article
  • Open Access
5 Citations
5,554 Views
15 Pages

3 December 2016

Because of the slow dynamic behavior of the large-inertia wind turbine rotor, variable-speed wind turbines (VSWTs) are actually unable to keep operating at the design tip speed ratio (TSR) during the maximum power point tracking (MPPT) process. Moreo...

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