scholarly journals Wind power plant resilience

2010 ◽  
Vol 14 (2) ◽  
pp. 533-540 ◽  
Author(s):  
Naim Afgan ◽  
Dejan Cvetinovic
Keyword(s):  
Power Plant ◽  
Kinetic Energy ◽  
Energy Conversion ◽  
Wind Power ◽  
Wind Velocity ◽  
Mechanical Energy ◽  
Electrical Energy ◽  
Wind Power Plant ◽  
Electricity Cost ◽  
Resilience Index

A wind energy system transforms the kinetic energy of wind into mechanical or electrical energy that can be harnessed for practical use. Mechanical energy is most commonly used for pumping water in rural or remote locations. Electrical energy is obtained by connecting wind turbine with the electricity generator. The performance of the wind power plant depends on the wind kinetic energy. It depends on the number of design parameter of the wind turbine. For the wind power plant the wind kinetic energy conversion depends on the average wind velocity, mechanical energy conversion into electricity, and electricity transmission. Resilience of the wind power plant is the capacity of the system to withstand changes of the following parameters: wind velocity, mechanical energy conversion into electricity, electricity transmission efficiency and electricity cost. Resilience index comprise following indicators: change in wind velocity, change in mechanical energy conversion efficiency, change in conversion factor, change in transmission efficiency, and change in electricity cost. The demonstration of the resilience index monitoring is presented by using following indicators, namely: average wind velocity, power production, efficiency of electricity production, and power-frequency change. In evaluation of the resilience index of wind power plants special attention is devoted to the determination of the resilience index for situation with priority given to individual indicators.

scholarly journals Optimal Reserve Allocation to Maximize Kinetic Energy in a Wind Power Plant

2015 ◽  
Vol 10 (5) ◽  
pp. 1950-1957
Author(s):  
Gihwan Yoon ◽  
Hyewon Lee ◽  
Jinsik Lee ◽  
Gi-Gab Yoon ◽  
Jong Keun Park ◽  
...  
Keyword(s):  
Power Plant ◽  
Kinetic Energy ◽  
Wind Power ◽  
Wind Power Plant ◽  
Optimal Reserve

Handedness-controlled and solvent-driven actuators with twisted fibers

2019 ◽  
Vol 6 (6) ◽  
pp. 1207-1214 ◽  
Author(s):  
Bo Fang ◽  
Youhua Xiao ◽  
Zhen Xu ◽  
Dan Chang ◽  
Bo Wang ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
Kinetic Energy ◽  
Energy Conversion ◽  
Conversion Coefficient ◽  
Mechanical Energy ◽  
Electrical Energy ◽  
High Energy ◽  
Polar Solvents ◽  
Start Up

Handedness-controlled actuating systems are constructed from continuous twisted fibers with mirrored handedness, superb flexibility and mechanical robustness, affording impressive start-up torques driven by polar solvents, and controllably outputting rotor kinetic energy, harvesting electrical energy, and delivering mechanical energy with a high energy conversion coefficient.

scholarly journals Implementasi bilah savonius type u dengan variasi kemiringan sudu bilah savonius pada modul ajar pembangkit listrik tenaga bayu

JURNAL ELTEK ◽  
2021 ◽  
Vol 19 (2) ◽  
pp. 25
Author(s):  
Herman Hariyadi ◽  
Leonardo Kamajaya ◽  
Fitri Fitri ◽  
Mohammad Hafidh Fadli
Keyword(s):  
Power Generation ◽  
Power Plant ◽  
Wind Power ◽  
Power Plants ◽  
Electrical Energy ◽  
Small Scale ◽  
Wind Power Plant ◽  
Data Logger ◽  
Wind Speeds ◽  
Technical Specifications

ABSTRAKPertumbuhan dan konsumsi listrik yang tidak berimbang serta tingkat polusi yang terus meningkat, mendorong banyak penelitian tentang pembangkit listrik energi baru dan terbarukan. Salah satu energi terbarukan yang menghasilkan energi listrik adalah pembangkit listrik tenaga bayu. Turbin angin jenis savonius merupakan turbin yang sesuai dioperasikan dengan kecepatan angin yang relatif rendah dan cocok digunakan sebagai pembangkit listrik berskala kecil. Pada penelitian ini penulis juga mengkaji konfigurasi variasi kemiringan sudu bilah savonius tipe u overlap dan tipe u non-overlap. Agar mengetahui spesifikasi teknik pembangkit listrik tenaga bayu ini, penulis merancang prototype pembangkit listrik tenaga bayu turbin savonius dengan variasi kecepatan angin 0-8 m/s, variasi kemiringan sudu turbin sebesar 00, 150 dan 300. Berdasarkan percobaan yang telah dilakukan turbin dengan kemiringan sudu 150 pada bilah savonius non overlap menghasilkan tegangan dan RPM paling tinggi. Rata-rata tegangan yang dihasilkan pada kemiringan sudu tersebut adalah 3,61V pada 1081 RPM, dan arus keluaran mencapai 950mA dengan beban resistor 10Ω. Data logger digunakan untuk menyimpan data berbagai sensor tersebut kemudian di plot dalam bentuk grafik dengan komunikasi serial ke PC untuk selanjutnya dianalisa. ABSTRACTThe growth and disproportionate consumption of electricity as well as the level of pollution continues to increase, prompting a lot of research on new and renewable energy power generation. One of the renewable energies that produces electrical energy is wind power generation. The savonius type wind turbine is a turbine that is suitable for operation with relatively low wind speeds and is suitable for use as small-scale power plants. In this study, the author also examines the configuration of the savonius blade slope variations, type u overlap and type u non-overlap. In order to know the technical specifications of this wind power plant, the author designed a prototype of the Savonius turbine wind power plant with wind speed variations of 0-8 m/s, turbine blade slope variations of 00, 150 and 300. Based on experiments that have been carried out turbines with blade slopes 150 on non-overlap savonius blades produces the highest voltage and RPM. The average voltage produced on the slope of the blade is 3.61V at 1081 RPM, and the output current reaches 950mA with a load resistor of 10Ω. The data logger is used to store data on various sensors and then plotted in the form of a graph with serial communication to a PC for further analysis.

scholarly journals THE EFFECT OF THE WIND VELOCITY ON THE DYNAMICSOF AN ELECTROMAGNETICALLY SUSPENDED VERTICAL-AXIS ROTOROF A WIND POWER PLANT

2016 ◽  
Vol 78 (1) ◽  
pp. 5-12 ◽  
Author(s):  
F. M. Mitenkov ◽  
◽  
V. F. Ovchinnikov ◽  
M. Ya. Nikolaev ◽  
E. V. Kiryushina ◽  
...  
Keyword(s):  
Power Plant ◽  
Wind Power ◽  
Wind Velocity ◽  
Vertical Axis ◽  
Wind Power Plant

Releasable Kinetic Energy-Based Inertial Control of a DFIG Wind Power Plant

2016 ◽  
Vol 7 (1) ◽  
pp. 279-288 ◽  
Author(s):  
Jinsik Lee ◽  
Eduard Muljadi ◽  
Poul Sorensen ◽  
Yong Cheol Kang
Keyword(s):  
Power Plant ◽  
Kinetic Energy ◽  
Wind Power ◽  
Wind Power Plant ◽  
Inertial Control

scholarly journals Performance analysis of 30 MW wind power plant in an operation mode in Nouakchott, Mauritania

2021 ◽  
Vol 12 (1) ◽  
pp. 532
Author(s):  
Bamba Heiba ◽  
Ahmed Med Yahya ◽  
Mohammed Qasim Taha ◽  
Nadhira Khezam ◽  
Abdel Kader Mahmoud
Keyword(s):  
Power Plant ◽  
Performance Analysis ◽  
Total Energy ◽  
Wind Power ◽  
Wind Farm ◽  
Operation Mode ◽  
Electrical Energy ◽  
Capacity Factor ◽  
Energy Output ◽  
Wind Power Plant

In this paper, the performance analysis of a 30 MW wind power plant is performed. The farm consists of fifteen (T1-T15) G9 7/2000/GAMESA 2 MW grid-connected turbines. The farm is in operation mode installed 28 km south of Nouakchott city in Mauritania. The analyzed data are monitored from July 1st, 2015 (the first operation day of the power plant) to December 31st, 2019. The parameters of performance evaluation are power generation, capacity factor, machine availability, grid availability, and system availability. It is observed from data analysis, the wind farm supplies a total energy of 507.39 GWh to the power grid and have a high average capacity factor of 42.55%. T1 produces the highest amount of electrical energy among the other turbines with a total energy output of 35.46 GWh, an average capacity factor of 44.97%, and operating hours of 33,814 hours. While T12 produced the minimum amount of energy in this period, the difference in energy compared to T1 is 4.563 GWh. It is observed that the availability of the network is unstable and needs improvement, varying between 90.86% in 2016 and 93.16% in 2018. In the first year of operation, 97.06% of the turbines were available. However, the average availability of the wind farm is approximately 94% during the total study period.

scholarly journals Wind farm: a new module for the BRAMS

2020 ◽  
Vol 42 ◽  
pp. e37
Author(s):  
Luiz Flávio Rodrigues ◽  
Haroldo F. de Campos Velho ◽  
Saulo R. Freitas
Keyword(s):  
Power Plant ◽  
Kinetic Energy ◽  
Wind Power ◽  
Numerical Weather Prediction ◽  
Wind Farm ◽  
Weather Prediction ◽  
Limited Area ◽  
Wind Power Plant ◽  
Environmental Prediction ◽  
The Impact

A new module has been developed by the limited area model BRAMS to parameterize a wind farm power plant. BRAMS is developed to be a system for numerical weather prediction, and it is currently employed for operational environmental prediction by the CPTEC/INPE. The new module was able to simulate the impact from a set of wind turbines. The additional drag from turbines changes the turbulent kinetic energy (TKE). Some simulations were carried out considering wind power plant installed on the Brazilian territory.

scholarly journals Study of the Decentralized Electrification by a Micro-Wind Power Plant: Case of Ahouandji Locality in Southern Benin

2021 ◽  
Vol 1 ◽  
Author(s):  
Hagninou Elagnon Venance Donnou ◽  
Gabin Koto N’Gobi ◽  
Hilaire Kougbéagbédè ◽  
Germain Hounmenou ◽  
Aristide Barthélémy Akpo ◽  
...  
Keyword(s):  
Power Plant ◽  
Wind Power ◽  
Electric Energy ◽  
Electrical Energy ◽  
Well Being ◽  
Maximum Energy ◽  
Wind Power Plant ◽  
Selling Price ◽  
Economic Study ◽  
Daily Production

Access to energy is a major challenge for the socio-economic well-being of populations. In Benin, the electric energy sector is characterized by a low rate of access to energy in rural area (6.6% in 2017) and dependence on the outside at 40%. In the village of Ahouandji (Ouidah commune) located on the coast of Benin and far from the conventional network, the surface winds are regular and permanent. However, this wind resource is untapped despite the unavailability of electrical energy. To cope with this difficulty, this study therefore addresses the design and sizing of a micro-wind power plant to supply the region. Wind data at 10 m above the ground recorded over the period January 1981 to December 2014 by the Agency for the Safety of Air Navigation in Africa (ASECNA) were used. Based on the socio-economic study of the locality and the statistical study of the winds by the Weibull distribution and the power law, the sizing of the wind power plant components was carried out. The economic study of the system then made it possible to assess the profitability of the project. It emerges from this study that at 25 m above the ground the Weibull shape parameter is estimated at 2.94 and the scale parameter at 6.07 m/s. The most frequent speed is estimated at 5 m/s and the one giving the maximum energy at 10.2 m/s. The micro-power plant is made up of two wind turbines with a nominal power of 29.7 kW for a daily production estimated at 355 kWh, a three-phase converter rated at 30 kW, 06 inverters/chargers with a power of 11.5 kW and 120 batteries (3000Ah/2V). The selling price of kilowatt-hour estimated at 0.17 euro/kWh is quite competitive. The establishment of this micro-wind power plant is therefore an asset for these rural populations.

scholarly journals PERENCANAAN CHARGER CONTROLLER DAN BATERAI PADA PROTOTYPE PLTB SKALA KECIL DI TEKNIK LISTRIK POLINEMA

2021 ◽  
Vol 9 (1) ◽  
pp. 97-102
Author(s):  
Wijaya Kusuma ◽  
Anang Dasa Novfowan ◽  
Abdul Manaf
Keyword(s):  
Energy Storage ◽  
Power Plant ◽  
Wind Energy ◽  
Wind Power ◽  
Alternative Energy ◽  
Power Plants ◽  
Electrical Energy ◽  
Prototype System ◽  
Wind Power Plant ◽  
Electrical Energy Storage

One of the efforts to tackle the energy crisis is by reducing dependence on fossil energy sources and utilizing alternative energy. One of the alternative energy is wind energy. Wind energy can be used to make power plants. Wind power plant is a method to generate electrical energy by turning the wind turbine which connected to the generator, then the electrical energy which generated by generator used for supplying the load. However, the availability of the wind energy are not always constant in strength, thus to make this power plant work continuously to supplying the load it needed the element of electrical energy storage,that is battery.In order to make the electrical energy storage become efficient then used the component to support the battery charging, the presence of these component the energy produced can be stored optimallyand the battery life can be longer. The purpose of this study is to design and analyze the performance of the charger controller and battery in the PLTB system which is then used to support the work of the Wind Power Plant prototype system in State Polytechnic of Malang. The result of this study is how to choose the charger controller and battery based on some consideration, the characteristics of each components before and after be assembled in Wind Power Plant prototype system in State Polytechnic of Malang

scholarly journals FISIKA KONTEKSTUAL PEMBANGKIT LISTRIK TENAGA MIKROHIDRO

2020 ◽  
Vol 6 (1) ◽  
pp. 142
Author(s):  
Richardo Barry Astro ◽  
Hamsa Doa ◽  
Hendro Hendro
Keyword(s):  
Kinetic Energy ◽  
Energy Conversion ◽  
Power Plants ◽  
Mechanical Energy ◽  
Electrical Energy ◽  
Impulse Turbine ◽  
Before And After ◽  
Water Turbine ◽  
Working Principle ◽  
Main Components

ABSTRAKPenelitian ini bertujuan untuk mengetahui prinsip dasar dan sistem kerja pembangkit listrik tenaga mikrohidro (PLTMH) dari sudut pandang fisika sebagai upaya penyediaan dan pengembangan sumber belajar kontekstual. Penelitian ini dilaksanakan menggunakan metode studi literatur, observasi, dan wawancara. Hasilnya ditemukan bahwa PLTMH memiliki tiga komponen utama yakni air sebagai sumber energi, turbin, dan generator. Skema konversi energi pada PLTMH yang menggunakan head adalah sebagai berikut: 1) energi potensial air dari reservoir diubah menjadi energi kinetik pada pipa pesat, 2) energi kinetik air diubah menjadi energi mekanik oleh turbin air, 3) energi mekanik diubah menjadi energi listrik oleh generator. Turbin air berdasarkan prinsip kerja dibagi atas turbin impuls dan turbin reaksi. Turbin impuls memanfaatkan perubahan momentum air sebelum dan setelah menabrak sudu turbin, sedangkan turbin reaksi memanfaatkan perbedaan tekanan pada permukaan sudu. Generator bekerja berdasarkan prinsip induksi elektromagnetik. Ketika rotor generator yang terkopel pada turbin berputar, kumparan konduktor akan memotong garis medan magnet sehingga timbul tegangan induksi. Kata kunci: pembangkit listrik tenaga mikrohidro; konversi energi; turbin, generator. ABSTRACTThe research aims to determine the fundamental principles and working systems of Microhydro power plants from a physical standpoint as an effort to provide and develop contextual learning resources. This study was conducted using literature, observation and interview methods. The results found that PLTMH had three main components i.e. water as energy source, turbine, and generator. The energy conversion scheme on PLTMH that uses the head is as follows: 1) The potential energy of water from the reservoir is converted into kinetic energy on the rapid pipeline, 2) water kinetic energy converted into mechanical energy by water turbine, 3) changed mechanical energy into electrical energy by generators. The water turbine based on the working principle is divided into impulse turbines and reaction turbines. The impulse turbine utilizes a change in water momentum before and after crashing the turbine's sudu, while the reaction turbine utilizes pressure differences on the surface of the Sudu. The generators work based on electromagnetic induction principles. When the rotor generator is attached to the turbine spinning, the conductor coil will cut off the magnetic field line so that the induction voltage arises. Keywords: microhydro power plant; energy conversion; turbine; generator.

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