Design Optimization of Wind Energy Conversion Systems with Applications最新文献

Wind Turbine Airfoil Boundary Layer Optimization Using Genetic Algorithm with 3D Rotational Augmentation 基于三维旋转增强遗传算法的风电翼型边界层优化

Design Optimization of Wind Energy Conversion Systems with Applications Pub Date : 2020-04-15 DOI: 10.5772/intechopen.89821

Youjin Kim, G. Bangga, A. Delgado

{"title":"Wind Turbine Airfoil Boundary Layer Optimization Using Genetic Algorithm with 3D Rotational Augmentation","authors":"Youjin Kim, G. Bangga, A. Delgado","doi":"10.5772/intechopen.89821","DOIUrl":"https://doi.org/10.5772/intechopen.89821","url":null,"abstract":"The airfoil shape of horizontal axis wind turbine (HAWT) blade is optimized using genetic algorithm (GA). The algorithm is set to find the final airfoil shape with the highest gliding ratio (GR) and larger laminar boundary layer regime along the airfoil surface. The main aim is to find the best airfoil shape of higher lift coefficient with reduced drag in boundary layer from the reference airfoil shape. A 3D correction law is applied to model the effect of optimized airfoil in 3D rotational augmented situation. The thrust and power curves are generated by the blade element (BEM) and free vortex (FV) codes with 3D and loss correction. The higher power production is given when the wind turbine blades are designed using the optimized airfoil. This increment is thought to be made from the efficiency caused by the reduced separation bubbles from reduced turbulent boundary layer and 3D rotational augmentation. To validate its effectiveness in case of soiled condition, the aerodynamic parameters of airfoils are recalculated by enforcing the airfoil to undergo earlier transition, which models the leading edge roughness. The results indicate the soiled condition that does not affect the aerodynamic efficiency of the airfoil due to the positive effect of 3D rotation augmentation.","PeriodicalId":293890,"journal":{"name":"Design Optimization of Wind Energy Conversion Systems with Applications","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130428634","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Structural Optimization of Wind Turbine Blades for Improved Dynamic Performance 风力机叶片结构优化提高动力性能

Design Optimization of Wind Energy Conversion Systems with Applications Pub Date : 2020-04-15 DOI: 10.5772/intechopen.91643

G. E. Beshay, K. Maalawi

{"title":"Structural Optimization of Wind Turbine Blades for Improved Dynamic Performance","authors":"G. E. Beshay, K. Maalawi","doi":"10.5772/intechopen.91643","DOIUrl":"https://doi.org/10.5772/intechopen.91643","url":null,"abstract":"The design of the main structure of a wind turbine blade is optimized aiming at the improvement of the overall dynamic performance. Three optimization strategies are developed and tested. The first fundamental one is based on minimizing the total structural mass of the blade spar under frequency and strength constraints. The second and third strategies are concerned with the reduction of the overall vibration level by either minimizing a frequency-placement index or maximizing the natural frequencies and placing them at their target values to avoid large amplitudes and resonance occurrence. Design variables include cross-sectional dimensions and material properties along the spanwise direction of the blade spar. The optimization problem is formulated as a nonlinear constrained problem solved by sequential quadratic programming (SQP) technique. Two specific layup configurations, namely, circumferentially asymmetric stiffness (CAS) and circumferentially uniform stiffness (CUS), are analyzed. Exact analytical methods are applied to calculate the natural modes of vibration of a composite, thin-walled, tapered blade spar. The influence of coupling on the vibration modes is identified, and the functional behavior of the frequencies with the lamination parameters is thoroughly investigated and discussed. Finite element modeling using NX Nastran solver is performed in order to validate the analytical results. As a case study, optimized blade spar designs of a 750-kW horizontal axis wind turbine are given. The attained solutions show that the approach used in this study enhances the dynamic characteristics of the optimized spar structures as compared with a known baseline design of the wind turbine blade.","PeriodicalId":293890,"journal":{"name":"Design Optimization of Wind Energy Conversion Systems with Applications","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121474307","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

The Use of Electrical Measurements of Wind Turbine Generators for Drive Train Condition Monitoring 利用风力涡轮发电机的电气测量进行传动系统状态监测

Design Optimization of Wind Energy Conversion Systems with Applications Pub Date : 2020-04-15 DOI: 10.5772/intechopen.90127

E. Artigao, A. Honrubia-Escribano, S. Martín-Martínez, E. Gómez-Lázaro

引用次数: 2

Optimal Design and Operational Monitoring of Wind Turbine Blades 风电叶片优化设计与运行监测

Design Optimization of Wind Energy Conversion Systems with Applications Pub Date : 2020-04-15 DOI: 10.5772/INTECHOPEN.90258

F. Ochieng, C. Hancock, G. Roberts, J. Kernec

{"title":"Optimal Design and Operational Monitoring of Wind Turbine Blades","authors":"F. Ochieng, C. Hancock, G. Roberts, J. Kernec","doi":"10.5772/INTECHOPEN.90258","DOIUrl":"https://doi.org/10.5772/INTECHOPEN.90258","url":null,"abstract":"The wind turbine blade is a critical component of any wind energy system. Its design, testing, and performance monitoring play a key role in power generation. With the increased use of composites and longer blades, a need to review existing monitoring sensors and use emergent novel ones is urgent among industry practitioners. In addition, an overview relating blade testing to Campbell diagrams and non-contact sensors have not been addressed as part of blade optimization. Based on design loads under IEC 61400-23 standards, the chapter explores various contact and non-contact sensors for design validation as well as their exploratory use in a three-tier structural health monitoring (SHM) framework for blade’s operational performance monitoring. The chapter also includes a case study in the non-contact use of ground-based radar (GBR) in the optimal design of blades and real-time in-field monitoring using condition parameters. Lastly, the chapter addresses the lack of practical guidelines in the complementary use of GBR within a 3-tier SHM framework. Such use has the intent of building a cohesive understanding of GBR use for blade optimization and operational monitoring.","PeriodicalId":293890,"journal":{"name":"Design Optimization of Wind Energy Conversion Systems with Applications","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131583378","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Reliability Assessment of Wind Turbines 风力发电机可靠性评估

Design Optimization of Wind Energy Conversion Systems with Applications Pub Date : 2020-04-15 DOI: 10.5772/intechopen.89747

Mai F.M. Ayoub

引用次数: 0