scholarly journals Parametric Study of Eddy Current Brakes for Small-Scale Household Wind Turbine Systems

Energies ◽  
2021 ◽  
Vol 14 (20) ◽  
pp. 6633
Author(s):  
Huiseop Jeong ◽  
Hoseong Ji ◽  
Sanghyun Choi ◽  
Joonho Baek
Keyword(s):  
Wind Turbine ◽  
Eddy Current ◽  
Parametric Study ◽  
Rotational Speed ◽  
Magnetic Flux Density ◽  
Small Scale ◽  
Turbine Generator ◽  
Disk Thickness ◽  
Wind Turbine Generator ◽  
Braking Torque

The design and application of eddy current brakes (ECBs) should be simple; further, ECBs should be used semi-permanently. This study aimed to determine major parameters for designing an ECB that can be applied to a small-scale wind turbine generator. To this end, an ECB was developed that could actuate without additional power, thus improving the efficiency of the generator. A series of simulations were conducted for a parametric study to pre-design ECBs suitable for small wind turbines. The six parameters chosen were disk thickness, number of magnets, radial location of magnets from center of disk, magnet pole arrangement, magnetic flux density, and rotational speed. The simulations were conducted on COMSOL Multiphysics. The results indicated that the number of magnets and magnet pole arrangements can significantly affect the performance curve of ECBs. Moreover, the disk thickness and rotational speed are linearly proportional to the braking torque.

scholarly journals Integration of Distributed Generating Systems for Non-Linear Loads

2021 ◽  
Vol 23 (06) ◽  
pp. 1525-1545
Author(s):  
Praval Sharma ◽  
◽  
Dr. Imran ◽  
Keyword(s):  
Wind Turbine ◽  
Small Scale ◽  
Diesel Generator ◽  
Turbine Generator ◽  
Power Sources ◽  
Matlab Simulink ◽  
Wind Turbine Generator ◽  
Point Tracking ◽  
Power Point ◽  
Sustainable Power

The independent small-scale networks including sustainable power sources have been used in remote regions around the globe. Nonetheless, the irregularity of vitality sources may cause an enormous variance of the miniaturized scale framework recurrence. Because of consistently expanding vitality utilization, rising open familiarity with ecological assurance, and relentless advancement in power deregulation, distributed generation (DG) frameworks have pulled in expanded intrigue. Wind and photovoltaic (PV) power age are two of the most encouraging sustainable power source advancements. Fuel cell (FC) frameworks likewise show incredible potential in DG utilizations of things to come because of their quick innovation improvement and numerous benefits they have, for example, high effectiveness, zero or low outflow (of contamination gases), and adaptable measured structure. In proposition investigated work Integration of Distributed Generating Systems for Non-straight Loads will be proposed. A run-of-the-mill wind-PV-diesel reconciliation which comprises of diesel generator, PV framework, wind turbine generator (WTG), BESS, and burden, is utilized for the proposed models and controllers. We reenact and Integration Distributed Generating Systems for Non-straight Loads on the MATLAB/SIMULINK and portions of coordinated vitality frameworks are analyzed. The coordinated PV framework is normally controlled to work in the maximum power point tracking (MPPT) mode. The battery vitality stockpiling framework is worked inconsistent force charging or releasing mode. So as to give an incorporated vitality framework associated with lattice relying upon singular vitality necessities, the Integrated Energy Systems can be extra to a current vitality source to lessen petroleum product utilization or an independent for complete non-renewable energy source uprooting Through the broad joining of vitality foundations it is conceivable to upgrade the supportability, adaptability, steadiness, and productivity of the general vitality framework. The reproduction of incorporated vitality frameworks is done in MATLAB/SIMULINK. And all framework results will be done by Matlab reproduction is proposed for disconnected smaller scale matrices with sustainable sources. In the exhibited method, the pitch point controller is intended for wind turbine generator (WTG) framework to smooth breeze power yield. The proposed procedure is tried in a regular secluded incorporated small-scale network with both PV and wind turbine generators.

Control and Interfacing of a Grid-Connected Small-Scale Wind Turbine Generator

2011 ◽  
Vol 26 (2) ◽  
pp. 428-434 ◽  
Author(s):  
Haining Wang ◽  
Chem Nayar ◽  
Jianhui Su ◽  
Ming Ding
Keyword(s):  
Wind Turbine ◽  
Small Scale ◽  
Turbine Generator ◽  
Wind Turbine Generator

Design Cost and Scaling Model of Superconducting Wind Turbine Generator for Electricity Generation

2014 ◽  
Vol 564 ◽  
pp. 758-763
Author(s):  
N.A. Hamid ◽  
M.F. Suparin ◽  
T. Gokila ◽  
L.S. Ewe
Keyword(s):  
Wind Turbine ◽  
Electrical Energy ◽  
Vertical Axis ◽  
Small Scale ◽  
Vertical Axis Wind Turbine ◽  
Turbine Generator ◽  
Wind Turbine Generator ◽  
Scaling Model ◽  
The Cost ◽  
Design Cost

This paper reports on the design cost and scaling model of a small scale superconducting wind turbine generator, where the levelized cost of energy (COE) was calculated. The proposed design of the wind turbine is based on the vertical axis wind turbine (VAWT) type that drives the superconducting generator. VAWT was chosen due to its ability to operate under low wind speed. Wind turbine using superconducting generator was proposed since it is able to enhance magnetic flux within the stator of the generator and consequently improve the performance of the generator. Once the design has been accomplished, all the cost of parts and components must be accounted and contributes to the overall cost of generating electrical energy from the superconducting wind turbine generator. The cost elements include the initial capital cost (ICC), balance of station (BOS), operation and maintenance (O&M), levelized replacement cost (LRC) and annual energy production (AEP). The calculated levelized COE shows that the cost of generating electricity using superconducting wind turbine generator is lower than generating electricity from conventional sources.

scholarly journals Application of Particle Dampers on a Scaled Wind Turbine Generator to Improve Low-Frequency Vibro-Acoustic Behavior

2022 ◽  
Vol 12 (2) ◽  
pp. 671
Author(s):  
Braj Bhushan Prasad ◽  
Fabian Duvigneau ◽  
Daniel Juhre ◽  
Elmar Woschke
Keyword(s):  
Wind Turbine ◽  
Granular Materials ◽  
Laser Scanning ◽  
Low Frequency ◽  
Small Scale ◽  
Turbine Generator ◽  
Wind Turbine Generator ◽  
Low Frequency Vibration ◽  
Vibration Attenuation ◽  
Particle Damping

The purpose of this paper is to introduce a honeycomb damping plate (HCDP) concept based on the particle damping technique to reduce the low-frequency vibration response of wind turbine generators. The HCDP cells contain granular materials and are mounted at different positions on the generator to reduce the transmission of vibrations from stator ring to stator arm. To investigate the efficiency of the HCDP concept in the laboratory, a small-scale replica inspired by the original wind turbine generator is used as reference geometry. The efficiency of the vibration attenuation by using the HCDP concept is experimentally investigated with the help of a laser scanning vibrometer device. In this contribution, the influence of four different granular materials on the vibration attenuation is experimentally investigated. Furthermore, the influence of HCDP positioning on the transmission path damping is analyzed. Apart from this, the effect of single-unit (SU) and multi-unit (MU) HCDP on the frequency response of the generator is also studied. The experimental approach in this paper shows good damping properties of the HCDP concept for reducing the vibration amplitude.

Sign in / Sign up

Export Citation Format

Share Document