کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
300277 512479 2013 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Optimized linearization of chord and twist angle profiles for fixed-pitch fixed-speed wind turbine blades
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی انرژی های تجدید پذیر، توسعه پایدار و محیط زیست
پیش نمایش صفحه اول مقاله
Optimized linearization of chord and twist angle profiles for fixed-pitch fixed-speed wind turbine blades
چکیده انگلیسی

The chord and twist angle radial profiles of a fixed-pitch fixed-speed (FPFS) horizontal-axis wind turbine blade are based on a particular design wind speed and design tip speed ratio. Because the tip speed ratio varies with wind speed, the originally optimized chord and twist angle radial profiles for a preliminary blade design through optimum rotor theory do not necessarily provide the highest annual energy production (AEP) for the wind turbine on a specific site with known wind resources. This paper aims to demonstrate a novel optimal blade design method for an FPFS wind turbine through adopting linear radial profiles of the blade chord and twist angle and optimizing the slope of these two lines. The radial profiles of the blade chord and twist angle are linearized on a heuristic basis with fixed values at the blade tip and floating values at the blade root based on the preliminary blade design, and the best solution is determined using the highest AEP for a particular wind speed Weibull distribution as the optimization criteria with constraints of the top limit power output of the wind turbine. The outcomes demonstrate clearly that the proposed blade design optimization method offers a good opportunity for FPFS wind turbine blade design to achieve a better power performance and low manufacturing cost. This approach can be used for any practice of FPFS wind turbine blade design and refurbishment.


► Optimized linearization of chord and twist distributions for FPFS wind turbine blade.
► 2.93%–5.86% higher AEP than BEM based blade design for AMWS 5.0 m/s–7.0 m/s.
► Low materials and manufacturing costs for wind turbine blade.
► Innovative design solution for FPFS wind turbine blade refurbishment.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Renewable Energy - Volume 57, September 2013, Pages 111–119
نویسندگان
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