Statistical Analysis of Wind Energy Potential in Uzbekistan’s Bukhara Region Using Weibull Distribution

Sadullayev, N. N.; Safarov, A. B.; Nematov, Sh. N.; Mamedov, Rasul

doi:10.3103/s0003701x19020105

Cited by 16 publications

(3 citation statements)

References 15 publications

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“…This includes flat lands, where the winds are seasonal. The weak and unstable nature of wind in our region in most areas (Figure 1) has a negative impact on the simultaneous energy production of wind power plants (WPP) [1,2,3]. Modern WPPs works optimally at speeds from 5 m/s to 25 m/s.…”

Section: Introductionmentioning

confidence: 99%

Increase the reliability of power supply by using mechanical energy storage devices for low-power consumers

2021

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The article analyzes the possibilities of using wind energy in Uzbekistan and studies the possibility of using energy storage devices to build a reliable electricity supply in the regions. In areas with weak winds, a device that first stores wind energy and then generates alternating electricity has been proposed. Energy storage systems have been analyzed, and it is recommended to use mechanical energy storage systems in the energy system consisting of renewable energy sources in the Republic of Uzbekistan. It has been noted that the use of such devices is particularly effective in areas far from centralized power supply, where power supply is not available or where reliability is low. An experimental model of a mechanical energy storage device using an elastic cord braid in a storage system and some equations for its design are given. The possibility and necessity of using this storage system is highly valued in our country. Despite the low power of the original model of the device, it is possible to achieve high results in the future by conducting research in this area and changing the type and composition of the elastic cord. This article presents the results of preliminary research on the development of a new design of mechanical energy storage devices using mechanical elastic cord.

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Section: Introductionmentioning

confidence: 99%

Increase the reliability of power supply by using mechanical energy storage devices for low-power consumers

2021

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“…When assessing the possibility of using the potential of wind energy, it was found that the average wind speed in this area is 3.5-4.5 m/s at a height of 10 m [7,8,9]. We can develop social and economic sectors by providing reliable and uninterrupted power supply to autonomous electricity consumers in remote areas of the region.…”

Section: Introductionmentioning

confidence: 99%

Study of Effective Omni-Directional Vertical Axis Wind Turbine for Low Speed Regions

Safarov

Mamedov

2021

IIUMEJ

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This article presents theoretical and experimental studies of an improved vertical axis wind power device that generates electricity in areas with an average wind speed of 3.5-4.5 m/s. An algorithm has been developed for determining the geometrically optimal dimensions of the outer guiding surfaces to improve the efficiency of the device at low wind speeds. The device uses an AFPMG generator with opposite rotation of the stator and rotor. Matlab/Simulink and Solidworks were used to develop a mathematical and physical model of the wind power device. According to the results of the study, it was found that the developed wind power device can reach a rated power of 700 W at a wind speed of 8 m/s. The use of the device in areas with low wind speed is based on the possibility of increasing the efficiency of work by 5-10% at an average wind speed lower than that of other types of wind power devices. ABSTRAK: Artikel ini memaparkan kajian teori dan eksperimen berkenaan alat kuasa angin paksi menegak yang diperbaharui dan menghasilkan tenaga elektrik di kawasan kelajuan angin berpurata 3.5-4.5 m/s. Algoritma telah dibangunkan bagi menentukan dimensi optimum geometri permukaan berpandu luar dalam meningkatkan kecekapan peranti pada kelajuan angin yang kurang. Peranti ini menggunakan penjana AFPMG dengan putaran stator dan rotor yang berlawanan. Matlab/Simulink dan Solidworks digunakan bagi menghasilkan model matematik dan fizikal peranti tenaga angin. Berdasarkan dapatan kajian, didapati bahawa alat tenaga angin yang dibangunkan ini dapat mencapai daya kuasa sebanyak 700 W pada kecepatan angin 8 m/s. Penggunaan alat ini di kawasan kurang kelajuan angin berkemungkinan meningkatkan efisiensi purata kerja sebanyak 5-10% pada kelajuan angin rendah, iaitu lebih rendah daripada segala jenis peranti tenaga angin lain.

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“…A group of researchers studied wind speed data and an analysis of the potential of wind energy in the Bukhara region [1,2]. The values of specific power and energy at different heights were determined by extrapolarization.…”

Section: Introductionmentioning

confidence: 99%

Analysis of multipolar generators operating efficiently in low-speed water and wind flows using ANSYS MAXWELL program

2021

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The article analyses generators generating efficient electricity at low speed water and wind flows. High rotating speed generators are used in wind farms and micro-hydropower. Reduction gears are used to provide the generators with the required number of rotations. The use of reduction gears in the power system leads to a decrease in the efficiency of the system and additional capital costs. The study analyzed multipolar synchronous generators. Both generators used a permanent magnet to generate electromotive force, and the generators are distinguished by the radial and axial placement of the permanent magnets. In order to analyze the generators, virtual models were created and analyzed in the Ansys Maxwell program. The Ansys Maxwell program is used to analyze electric machines in the electromagnetic field. The use of these programs in determining the optimal size of new devices is of great importance in saving time and improving cost-effectiveness.

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Statistical Analysis of Wind Energy Potential in Uzbekistan’s Bukhara Region Using Weibull Distribution

Cited by 16 publications

References 15 publications

Increase the reliability of power supply by using mechanical energy storage devices for low-power consumers

Increase the reliability of power supply by using mechanical energy storage devices for low-power consumers

Study of Effective Omni-Directional Vertical Axis Wind Turbine for Low Speed Regions

Analysis of multipolar generators operating efficiently in low-speed water and wind flows using ANSYS MAXWELL program

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