Modeling approach to evaluate wind turbine performance: Case study for a single wind turbine of 1.65 MW in Dernah Libya

Rajab, Zakariya; Almaktar, Mohamed; Al-Naily, Naser; Saad, Saad M.; Mohamed, Faisal A.

doi:10.1109/irec.2017.7925990

Cited by 6 publications

(8 citation statements)

References 5 publications

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“…According to the RETScreen Expert, Clean Energy Management Software and the study made by Rajab et al (2017) showed that the average yearly wind speed is 5.3 m/s at 4 m height.…”

Section: Resultsmentioning

confidence: 99%

“…The faster the wind speed, the more the energy is captured by the wind turbine. A performance evaluation of a 1.65-MW wind turbine in Darnah Libya was reported by Rajab et al (2017), the system is modeled in Matlab/Simulink and validated using ATP Software. Two scenarios are conducted in order to study the system performance under fixed-speed and variable-speed mode.…”

Section: Introductionmentioning

confidence: 99%

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A practical seasonal performance evaluation of small wind turbine in urban environment

et al. 2019

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Due to the low environmental impact, smaller storage units, low wind speed, low power system distribution network impact, and low maintenance, small wind turbines have gained more attention. However, the usage of small turbines usually faces several shortcomings, and the actual yield is often lower than expected, generally because the output power is low when compared with the manufacturer, and the actual wind turbine behavior does not reproduces. In a view of performance evaluation of a small wind turbines using high-accuracy measurement devices to measure wind speed and energy production, this article illustrates an experimental seasonal performance evaluation of a 0.5-kW Hummer small wind turbine, placed in an urban environment. In addition, we study the influence of the height in the energy output and analyze its effect in the system performance, which is another aim in this work. Three cases have been carried out: 4 m in order to protect rotor blades during strong winds and storms in the first scenario and 6 m the manufacturing height in the second scenario while 10 m the third case. A 0.5-kW Hummer wind turbine has been installed in Noagia-Benghazi since 2010 for educational purposes, field studies, training, graduate projects, and research. The wind turbine seasonal performance under different periods was obtained and compared in terms of the wind speed, output power, energy production, and average wind speed. The average wind speed is 6.4, 4, 5.8, and 4 m/s, and the average energy production is 948.24, 172.8, 648, and 172.8 kWh in spring, summer, winter, and autumn, respectively. Spring has the highest wind speed followed by winter and autumn then summer for all height. Improvement is attained if the wind turbine tower height is 6 m, and 10 m where more energy is harvested. But the main problem at 10 m is that the system control needs more improvement because the wind speed exceeds 14 m/s which represents the maximum speed. The system can produce about 1.942 MW yearly and save CO2 emissions.

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“…According to the RETScreen Expert, Clean Energy Management Software and the study made by Rajab et al (2017) showed that the average yearly wind speed is 5.3 m/s at 4 m height.…”

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A practical seasonal performance evaluation of small wind turbine in urban environment

et al. 2019

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“…It shows the potential for high wind power production, as in Benina, Sirte, and Derna. From the research side, the possibility of [8].…”

Section: Introductionmentioning

confidence: 99%

Power Quality and System Stability Impact of Large-Scale Distributed Generation on the Distribution Network: Case Study of 60 MW Derna Wind Farm

Saad¹,

Naily²,

Wafi³

et al. 2018

Stability Control and Reliable Performance of Wind Turbines

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Wind energy (WE) has become one of the most promising and developed forms of renewable energy source due to its efficiency and the availability of different capacities according to the loading requirements. The integration of wind turbines in the Libyan network has become an indispensable choice due to Libya's distinguished location and for the Libyan National Initiative. Despite the numerous benefits of WE, the penetration of WE sources in the distribution network has some negative impacts related to the quality and reliability of the electric power supplied to the network. Owing to, the intermittent nature of these sources and electronic circuits needed to regulate the extracted power to comply with the grid requirements. In this chapter, implementation of the eastern Libyan network in NEPLAN and MATLAB/SIMULINK packages are carried out to investigate and analyze the significance of wind farm penetration in the medium voltage level of Libyan Distribution Network. A 60 MVA wind farm system has been connected to the Libyan distribution network according to the Libyan National Initiative. Different penetration scenarios are simulated to testify the technical aspects of integrating WE on the distribution level.

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“…There are different types of generators that are used with fixed speed or variable speed wind turbines. Fixed speed turbines typically use a synchronous machine (Guo et al, 2016;Puri et al, 2015;Rajab et al, 2017;Xinyin et al, 2008), while variable speed turbines use a direct current (DC) machine, brushless DC machine (Liu et al, 2011(Liu et al, , 2015, or an induction machine (Ahmed et al, 2003a(Ahmed et al, , 2003bBasset and Potter, 1935;Malik and Mazi, 1987;Quazene and Mcpherson, 1983;Singh et al, 2004;Tahir et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Genetic algorithm–based calculation of the excitation capacitance of a self-excited induction generator for stable voltage operation over load and speed variations

et al. 2017

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In order to provide the reactive power demand of a self-excited induction generator which is required to achieve a voltage buildup, a three-phase capacitor bank is connected between the generator terminals. As loading increases, the operating point on the magnetizing curve moves toward the linear region which may lead to the collapse of the generated voltage. In this article, genetic algorithms are used to evaluate the value of the excitation capacitance that makes the machine operate in the saturation region which ensures a stable generated voltage. To verify the effectiveness of this method, a laboratory machine which has a relatively high stator and rotor resistances and leakage reactance is considered. The values of the excitation capacitances predicted by the genetic algorithms are applied to the machine Simulink-based model. The results obtained by the simulation are compared with experimental results which show a good agreement.

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Modeling approach to evaluate wind turbine performance: Case study for a single wind turbine of 1.65 MW in Dernah Libya

Cited by 6 publications

References 5 publications

A practical seasonal performance evaluation of small wind turbine in urban environment

A practical seasonal performance evaluation of small wind turbine in urban environment

Power Quality and System Stability Impact of Large-Scale Distributed Generation on the Distribution Network: Case Study of 60 MW Derna Wind Farm

Genetic algorithm–based calculation of the excitation capacitance of a self-excited induction generator for stable voltage operation over load and speed variations

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