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 Optimization of a Small Wind Power Plant for Annual Wind Speed Distribution

Energies ◽  
2021 ◽  
Vol 14 (6) ◽  
pp. 1587
Author(s):  
Krzysztof Wrobel ◽  
Krzysztof Tomczewski ◽  
Artur Sliwinski ◽  
Andrzej Tomczewski
Keyword(s):  
Wind Speed ◽  
Power Plant ◽  
Wind Power ◽  
Power Plants ◽  
Control Method ◽  
Wind Power Plant ◽  
Switched Reluctance ◽  
Wind Speeds ◽  
Wind Speed Distribution ◽  
And Control

This article presents a method to adjust the elements of a small wind power plant to the wind speed characterized by the highest annual level of energy. Tests were carried out on the basis of annual wind distributions at three locations. The standard range of wind speeds was reduced to that resulting from the annual wind speed distributions in these locations. The construction of the generators and the method of their excitation were adapted to the characteristics of the turbines. The results obtained for the designed power plants were compared with those obtained for a power plant with a commercial turbine adapted to a wind speed of 10 mps. The generator structure and control method were optimized using a genetic algorithm in the MATLAB program (Mathworks, Natick, MA, USA); magnetostatic calculations were carried out using the FEMM program; the simulations were conducted using a proprietary simulation program. The simulation results were verified by measurement for a switched reluctance machine of the same voltage, power, and design. Finally, the yields of the designed generators in various locations were determined.

scholarly journals Economic justification for the use of a vertical axis wind power plant in wind conditions of Russia

2021 ◽  
Vol 24 (6) ◽  
pp. 1285-1296
Author(s):  
B. P. Khozyainov ◽  
T. N. Svistunova
Keyword(s):  
Wind Speed ◽  
Power Plant ◽  
Wind Power ◽  
Power Plants ◽  
Vertical Axis ◽  
Wind Power Plant ◽  
Wind Speeds ◽  
Economic Justification ◽  
The Cost ◽  
Natural Wind

The purpose of the study is to provide an economic justification of the application efficiency of vertical axis wind-driven power plants using the principle of differential blade drag under low natural wind speeds from 1 to 15 m/s. The estimated cost is determined by the resource-index method. Calculations are made in two stages: at the first stage a statement is compiled where the consumption of resources for the design volume of work is determined according to the state unit estimate standards collections; at the second stage a local resource estimate is made, and the resource consumption in natural units is converted to cost estimates (in the prices of 2000 year). Local estimates are made using the GRAND-SMETA software package. All costs of construction materials for the wind turbine and supporting structure were assumed at the commercial cost, which was translated to the budget cost of October 2019 using deflators. The transition indices from the prices of 2000 to the prices of 2019 are applied to the cost of materials and machinery operation (without remuneration of engine-drivers) as well as to the amount of labour remuneration for installers and engine-drivers. The cost of the installation set calculated by the strength at 20 m/s natural speed is 1643.591 thousand rubles. This allowed to determine the cost of 1 kWh, which depends on the service life and the average annual wind speed. At a wind speed of 4 m/s the cost is 7.12 rub/kWh; at a wind speed of 8 m/s it is 2.19 rub/kWh. At wind speeds from 5 m/s to 11 m/s with equal exposure time intervals, the average cost of 1 kWh will be within 3.14 rub/kWh. Conducted studies have confirmed the effective use of the proposed vertical axis wind power plant under conditions of low natural wind speeds in Russia. The installation is proved to be competitive in comparison with the traditional methods of energy generation.

scholarly journals Forecasting model of power generated by wind power plants

2021 ◽  
Vol 926 (1) ◽  
pp. 012084
Author(s):  
A M Ilyas ◽  
A Suyuti ◽  
I C Gunadin ◽  
S M Said
Keyword(s):  
Power Generation ◽  
Power Plant ◽  
Wind Power ◽  
Extreme Learning Machine ◽  
Power Plants ◽  
Percentage Error ◽  
Power Balance ◽  
Wind Power Plant ◽  
Wind Power Plants ◽  
Learning Machine

Abstract The power generated by wind power plants is unstable so forecasting is needed to maintain the power balance in an interconnected system. The purpose of this research is to predict the power generated at the Sidrap and Jeneponto wind power plants. The method used is an optimally pruned extreme learning machine (OPELM). The extreme learning machine (ELM) method is used as a comparison method. The mean absolute percentage error (MAPE) method is used to assess the level of forecasting accuracy. Forecasting power generation with Sidrap wind power plant data using the OPELM method is 0.8970% more accurate than the ELM which is 1.0853%. In general, the OPELM method is more accurate. Forecasting power generation with data from the Jeneponto wind power plant using the OPELM method is 2.4887% more accurate than the ELM method is 2.9984%. These results indicate that linear, sigmoid, and Gaussian activation in the OPELM method can increase accuracy. The OPELM method can be tested in forecasting the power generation at the Sidrap and Jeneponto wind power plants to maintain a power balance in the Sulselbar power grid system.

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

Output Power Correlation Between Nearby Wind Power Plants

2003 ◽  
Author(s):  
Yih-Huei Wan ◽  
Michael Milligan ◽  
Brian Parsons
Keyword(s):  
Power Plant ◽  
Wind Power ◽  
Power Output ◽  
High Frequency ◽  
Power Plants ◽  
Meteorological Data ◽  
Low Frequency ◽  
Spatial Separation ◽  
Wind Power Plant ◽  
Wind Power Plants

The National Renewable Energy Laboratory (NREL) started a project in 2000 to record long-term, high-frequency (1-Hz) wind power output data from large commercial wind power plants. Outputs from about 330 MW of wind generating capacity from wind power plants in Buffalo Ridge, Minnesota, and Storm Lake, Iowa, are being recorded. Analysis of the collected data shows that although very short-term wind power fluctuations are stochastic, the persistent nature of wind and the large number of turbines in a wind power plant tend to limit the magnitudes and rates of changes in the levels of wind power. Analyses of power data confirm that spatial separation greatly reduces variations in the combined wind power output relative to output from a single wind power plant. Data show that high frequency variations of wind power from two wind power plants 200 km apart are independent of each other, but low frequency power changes can be highly correlated. This fact suggests that time-synchronized power data and meteorological data can aid in the development of statistical models for wind power forecasting.

Application of Reference Designation for Power Plants to Wind Turbines

2014 ◽  
Vol 529 ◽  
pp. 476-480
Author(s):  
Li Yi ◽  
San Yong Liu ◽  
Qiang Qiang Yu
Keyword(s):  
Power Plant ◽  
Wind Power ◽  
Wind Turbines ◽  
Power Plants ◽  
Economic Effect ◽  
Technical Committee ◽  
International Standards ◽  
Identification System ◽  
Wind Power Plant

RDS-PP (Reference Designation for Power Plants) is a new identification system for power plants, which basis and structure are based on international standards. With the purposes to meet the designation of new power plants like wind power plant, KKS (Kraftwerk-Kennzeichen system) is developed to RDS-PP. VGB technical committee recommends newly-built power plants adopts RDS-PP directly. Though leading to additional work, adopting new identification system have a long term economic effect.

Description of Semantic Web Service in Wind Power Plant Based on OWL-S

2014 ◽  
Vol 543-547 ◽  
pp. 503-508
Author(s):  
Xin Ying Wang
Keyword(s):  
Power Plant ◽  
Semantic Web ◽  
Web Service ◽  
Wind Power ◽  
Information Exchange ◽  
Power Plants ◽  
International Standards ◽  
Wind Power Plant ◽  
Semantic Web Service ◽  
Wind Power Plants

IEC 61400-25 is a series of international standards on communication of wind power plants. The service defined by information exchange models in wind power plants communicates through being mapped to web service. Web service is described by WSDL, but with the limitation of WSDL itself, web service can not realize the semantic description, the automatic discovery and composition of service. So semantic web service is introduced, the service is described by OWL-S to realize the interconnection of wind power plant hardware devices from different manufacturers, to facilitate the sharing and reuse of devices function and to realize the sharing of wind power plant knowledge in semantic level.

scholarly journals Control the System and Environment of Post-Production Wind Turbine Blade Waste Using Life Cycle Models. Part 1. Environmental Transformation Models

Polymers ◽  
2020 ◽  
Vol 12 (8) ◽  
pp. 1828 ◽  
Author(s):  
Izabela Piasecka ◽  
Patrycja Bałdowska-Witos ◽  
Józef Flizikowski ◽  
Katarzyna Piotrowska ◽  
Andrzej Tomporowski
Keyword(s):  
Life Cycle ◽  
Power Plant ◽  
Wind Power ◽  
Power Plants ◽  
Negative Impact ◽  
Polymer Materials ◽  
Wind Power Plant ◽  
Polymer Waste ◽  
Wind Power Plants ◽  
The Impact

Controlling the system—the environment of power plants is called such a transformation—their material, energy and information inputs in time, which will ensure that the purpose of the operation of this system or the state of the environment, is achieved. The transformations of systems and environmental inputs and their goals describe the different models, e.g., LCA model groups and methods. When converting wind kinetic energy into electricity, wind power plants emit literally no harmful substances into the environment. However, the production and postuse management stages of their components require large amounts of energy and materials. The biggest controlling problem during postuse management is wind power plant blades, followed by waste generated during their production. Therefore, this publication is aimed at carrying out an ecological, technical and energetical transformation analysis of selected postproduction waste of wind power plant blades based on the LCA models and methods. The research object of control was eight different types of postproduction waste (fiberglass mat, roving fabric, resin discs, distribution hoses, spiral hoses with resin, vacuum bag film, infusion materials residues, surplus mater), mainly made of polymer materials, making it difficult for postuse management and dangerous for the environment. Three groups of models and methods were used: Eco-indicator 99, IPCC and CED. The impact of analysis objects on human health, ecosystem quality and resources was controlled and assessed. Of all the tested waste, the life cycle of resin discs made of epoxy resin was characterized by the highest level of harmful technology impact on the environment and the highest energy consumption. Postuse control and management in the form of recycling would reduce the negative impact on the environment of the tested waste (in the perspective of their entire life cycle). Based on the results obtained, guidelines and models for the proecological postuse control of postproduction polymer waste of wind power plants blades were proposed.

scholarly journals Modelling and Stability Analysis of Wind Power Plants Connected to Weak Grids

2019 ◽  
Vol 9 (21) ◽  
pp. 4695 ◽  
Author(s):  
Esmaeil Ebrahimzadeh ◽  
Frede Blaabjerg ◽  
Torsten Lund ◽  
John Godsk Nielsen ◽  
Philip Carne Kjær
Keyword(s):  
Power Plant ◽  
Wind Turbine ◽  
Wind Power ◽  
Power Plants ◽  
Short Circuit ◽  
Wind Power Plant ◽  
Negative Sequence ◽  
Weak Grid ◽  
Wind Power Plants ◽  
Sequence Domain

It is important to develop modelling tools to predict unstable situations resulting from the interactions between the wind power plant and the weak power system. This paper presents a unified methodology to model and analyse a wind power plant connected to weak grids in the frequency-domain by considering the dynamics of the phase lock loop (PLL) and controller delays, which have been neglected in most of the previous research into modelling of wind power plants to simplify modelling. The presented approach combines both dq and positive/negative sequence domain modelling, where a single wind turbine is modelled in the dq domain but the whole wind power plant connected to the weak grid is analysed in the positive/negative sequence domain. As the proposed modelling of the wind power plant is systematic and modular and based on the decoupled positive/negative sequence impedances, the application of the proposed methodology is relevant for transmission system operators (TSOs) to assess stability easily with a very low compactional burden. In addition, as the analytical dq impedance models of the single wind turbine are provided, the proposed methodology is an optimization design tool permitting wind turbine manufacturers to tune their converter control. As a case study, a 108 MW wind power plant connected to a weak grid was used to study its sensitivity to variations in network short-circuit level, X/R ratio and line series capacitor compensation (Xc/Xg).

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