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2010 World Non-Grid-Connected Wind Power and Energy Conference最新文献

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Research on turbulence intensity as an evaluation index for micrositing validation 湍流强度作为微定位验证评价指标的研究
2010 World Non-Grid-Connected Wind Power and Energy Conference Pub Date : 2010-12-23 DOI: 10.1109/WNWEC.2010.5673193
Zhongxiang Zhang, Anmin Cai, Ming Qin, Datong Zhang
{"title":"Research on turbulence intensity as an evaluation index for micrositing validation","authors":"Zhongxiang Zhang, Anmin Cai, Ming Qin, Datong Zhang","doi":"10.1109/WNWEC.2010.5673193","DOIUrl":"https://doi.org/10.1109/WNWEC.2010.5673193","url":null,"abstract":"The factors determining the optimal wind turbine type for a site-specific wind farm are 50-year extreme wind speed, mean wind speed and turbulence intensity. Wind climate is highly dependent on the terrain; the process of micrositing should not exclusively focus on the energy yield, but should also aim for the availability and safety of the wind turbine. The validation of micrositing is to double check to make sure that the 50-year extreme wind speed, mean wind speed, incline angle and turbulence intensity meet the wind turbines design requirements in the standards. On the basis of the analysis of micrositing validation process, the present paper focuses on the turbulence intensity as an evaluation index for micrositing validation, and takes a wind project as a case study to illustrate its circuit.","PeriodicalId":171339,"journal":{"name":"2010 World Non-Grid-Connected Wind Power and Energy Conference","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126781879","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: 0
Design of LCL filter for wind power inverter 风电逆变器LCL滤波器的设计
2010 World Non-Grid-Connected Wind Power and Energy Conference Pub Date : 2010-12-23 DOI: 10.1109/WNWEC.2010.5673156
Xing Wei, Lan Xiao, Zhilei Yao, Chunying Gong
{"title":"Design of LCL filter for wind power inverter","authors":"Xing Wei, Lan Xiao, Zhilei Yao, Chunying Gong","doi":"10.1109/WNWEC.2010.5673156","DOIUrl":"https://doi.org/10.1109/WNWEC.2010.5673156","url":null,"abstract":"An LCL filter is more and more widely used in wind power inverters. However, it may easily result in instability due to resonance, which makes it difficult for stability control without damping. A voltage oriented control strategy under the dq synchronization reference frame is adopted based on the mathematical model of the three-phase inverter for wind power, and then the characteristics and performance of an LCL filter compared with the L filter are investigated in detail. At the same time, the design of the LCL filter and the influence of system stability with different damping are given. Experimental results have effectively verified the design.","PeriodicalId":171339,"journal":{"name":"2010 World Non-Grid-Connected Wind Power and Energy Conference","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124039554","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: 38
A novel remote monitoring system design and implementation of wind farm 一种新型风电场远程监控系统的设计与实现
2010 World Non-Grid-Connected Wind Power and Energy Conference Pub Date : 2010-12-23 DOI: 10.1109/WNWEC.2010.5673233
Yang Wang, Zhengming Li, T. Pan, S. Zhang
{"title":"A novel remote monitoring system design and implementation of wind farm","authors":"Yang Wang, Zhengming Li, T. Pan, S. Zhang","doi":"10.1109/WNWEC.2010.5673233","DOIUrl":"https://doi.org/10.1109/WNWEC.2010.5673233","url":null,"abstract":"To ensure the safe and stable operation of wind farms, it is necessary to monitor the various operation parameters real-time. This paper introduces the Embedded Web Server technology; using DSP+ARM double CPU structure, designs and realizing the wind farm remote monitoring system based on the Embedded Web Server. This system also realizes the dynamic interaction and multiple user authentications for the establishment and improvement of the Boa server. The client can remotely monitor the wind farm's electric parameters and environmental parameters in real-time through the browser. This system fully meets the requirements by field and the remote testing.","PeriodicalId":171339,"journal":{"name":"2010 World Non-Grid-Connected Wind Power and Energy Conference","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125566556","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
Path and countermeasure of large-scale wind power development in African countries 非洲国家大规模发展风电的路径与对策
2010 World Non-Grid-Connected Wind Power and Energy Conference Pub Date : 2010-12-23 DOI: 10.1109/WNWEC.2010.5673250
M. Gu, Xiangwei Kong, Chunpeng Jin
{"title":"Path and countermeasure of large-scale wind power development in African countries","authors":"M. Gu, Xiangwei Kong, Chunpeng Jin","doi":"10.1109/WNWEC.2010.5673250","DOIUrl":"https://doi.org/10.1109/WNWEC.2010.5673250","url":null,"abstract":"Africa has abundant wind energy resources, and consumption of conventional energy will continue to grow with economic and social development, an urgent need for abundant renewable energy, and particularly abundant wind power resources as a new energy. Africa is copying the model and path of Western countries for wind power development, which will certainly increase the price of wind power equipment and wind power. By relying on government subsidy, it also cannot play a strategic role in guiding or promoting Africa's economic development and adjustment of energy structure, but it achieves better social benefits. Therefore, this article has found that large-scale wind power development could adapt to Africa's actual circumstances to achieve unity of social benefits, environmental benefits and economic benefits.","PeriodicalId":171339,"journal":{"name":"2010 World Non-Grid-Connected Wind Power and Energy Conference","volume":"73 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116984283","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: 0
A practical method of unit commitment considering wind power 一种考虑风力发电的实用机组承诺方法
2010 World Non-Grid-Connected Wind Power and Energy Conference Pub Date : 2010-12-23 DOI: 10.1109/WNWEC.2010.5673177
Pengpeng Yang, Long Zhao, Zhi Li
{"title":"A practical method of unit commitment considering wind power","authors":"Pengpeng Yang, Long Zhao, Zhi Li","doi":"10.1109/WNWEC.2010.5673177","DOIUrl":"https://doi.org/10.1109/WNWEC.2010.5673177","url":null,"abstract":"In this paper, a dispersed probability distribution model is built based on statistics of wind power forecasting error. Thus, the probabilistic reserve constraints in the analytic expression can be introduced into the traditional unit commitment (UC) model by Gauss function fitting of the distributions of different generations considering wind power. Otherwise, in order to solve the UC problem with these reserve constraints efficiently, this paper presents an improved approach of modifying Lagrangian multipliers based on the concept of average cost in the unit decommitment (UD) method. In addition, the search range and economic indices of units are also improved. A 26-unit system is analyzed to exhibit the effectiveness of the probabilistic reserve constraints and the proposed UD method.","PeriodicalId":171339,"journal":{"name":"2010 World Non-Grid-Connected Wind Power and Energy Conference","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117061215","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
Application of distributed wind (solar)/grid complement system for oil pumping machines in oilfields 油田抽油机分布式风(太阳能)/电网互补系统的应用
2010 World Non-Grid-Connected Wind Power and Energy Conference Pub Date : 2010-12-23 DOI: 10.1109/WNWEC.2010.5673297
Chufu Li, Xiaobin He, W. Gu
{"title":"Application of distributed wind (solar)/grid complement system for oil pumping machines in oilfields","authors":"Chufu Li, Xiaobin He, W. Gu","doi":"10.1109/WNWEC.2010.5673297","DOIUrl":"https://doi.org/10.1109/WNWEC.2010.5673297","url":null,"abstract":"Oilfield enterprises are large power consumption users; 40% of the power is consumed by oil pumping machines, which are widely distributed in an oil field. In the areas with rich wind energy and solar energy, directly using distributed wind power and solar power as a source for the oil pumping machine is an effective approach for saving energy and emission reduction. In the proposed distributed wind (solar)/grid complement system in this paper, wind (solar) power is connected to the grid but not integrated into it. It is without batteries, and has the priority to use 100% wind power and grid power replenishes automatically for continuous running of loads when wind (solar) power is not enough. It has a broad prospect in the application in oil pumping machines in anoilfield. The wind/grid complement intelligent power supply system has been successfully running in one oilfield, and has a drastic power savings of over 20%.","PeriodicalId":171339,"journal":{"name":"2010 World Non-Grid-Connected Wind Power and Energy Conference","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122345067","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
Application of back propagation neural network to fault diagnosis of direct-drive wind turbine 反向传播神经网络在直驱风电机组故障诊断中的应用
2010 World Non-Grid-Connected Wind Power and Energy Conference Pub Date : 2010-12-23 DOI: 10.1109/WNWEC.2010.5673159
X. An, D. Jiang, Shaohua Li
{"title":"Application of back propagation neural network to fault diagnosis of direct-drive wind turbine","authors":"X. An, D. Jiang, Shaohua Li","doi":"10.1109/WNWEC.2010.5673159","DOIUrl":"https://doi.org/10.1109/WNWEC.2010.5673159","url":null,"abstract":"The vibration signals of wind turbines are highly nonlinear and non-stationary due to wind turbine operation conditions that are very complicated. The signals will be more complex when a fault occurs. Aiming at these problems, a fault diagnosis method for direct-drive wind turbine is presented based on back propagation neural network (BPNN). The time-domain feature parameters of vibration signals in the horizontal and vertical direction are considered in the method. Five experiments of direct-drive wind turbine with normal, wind wheel mass imbalance, wind wheel aerodynamic imbalance, yaw and blade break are carried out in laboratory scale. Through analyzing the features of five conditions, the time-domain feature parameters in horizontal and vertical direction of the vibration signal are selected as the input samples of BPNN. By training, the BPNN model can be constructed between feature parameters and fault types. The validity of the BPNN model is verified using test samples. The results indicate that the proposed method has higher diagnostic accuracy. It can used in on-line fault diagnosis of direct-drive wind turbines.","PeriodicalId":171339,"journal":{"name":"2010 World Non-Grid-Connected Wind Power and Energy Conference","volume":"161 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122878112","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: 16
Fatigue load simulation for foundation design of offshore wind turbines due to combined wind and wave loading 海上风力机基础设计的风浪复合疲劳荷载模拟
2010 World Non-Grid-Connected Wind Power and Energy Conference Pub Date : 2010-12-23 DOI: 10.1109/WNWEC.2010.5673107
Jian-Wen Sheng, Shuifu Chen
{"title":"Fatigue load simulation for foundation design of offshore wind turbines due to combined wind and wave loading","authors":"Jian-Wen Sheng, Shuifu Chen","doi":"10.1109/WNWEC.2010.5673107","DOIUrl":"https://doi.org/10.1109/WNWEC.2010.5673107","url":null,"abstract":"Wave- and wind-induced fatigue load plays an important, often crucial role in the design of wind turbine supporting structures. This paper presents a practical procedure of fatigue load simulation for foundation design due to combined wind and wave loading in time domain. The distributions of mean wind speed and wind direction, as well as the wave height and wave period are taken into account. Correlation between wind and wave is considered by introducing the scatter diagram from oceanography. The harmony superposition method (HSM) is applied to simulate fully correlated random time series of wind velocity, from which aerodynamic loads can be obtained. The aerodynamic loads on the wind turbine rotor are determined using the blade element momentum method (BEM), which is computationally efficient but with good precision. The ocean wave model suggested by Longuet-Higgins is adopted, by which an irregular wave can be simulated based on the linear wave theory (Airy theory). Wave loads are finally generated by using the Morison equation. The offshore wind turbine tower is modeled as a discrete multi-degree-of-freedom system, with a lumped mass at the top of tower, representing the nacelle and blades. The bottom of the tower is connected to springs to introduce the effect of soil stiffness. The fatigue load spectrum is extracted by using the rain flow counting method. Through comparison with the capacity spectrum, the situation whether the design requirement is satisfied or not can be verified. Numerical examples are presented in the paper to demonstrate the feasibility of the current procedure. The sensibility of fatigue load due to variation of simulating parameters including water depth and soil stiffness is also numerically studied.","PeriodicalId":171339,"journal":{"name":"2010 World Non-Grid-Connected Wind Power and Energy Conference","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126123568","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
Modal analysis of wind turbine tower 风力机塔架模态分析
2010 World Non-Grid-Connected Wind Power and Energy Conference Pub Date : 2010-12-23 DOI: 10.1109/WNWEC.2010.5673234
Jie Chen, D. Jiang
{"title":"Modal analysis of wind turbine tower","authors":"Jie Chen, D. Jiang","doi":"10.1109/WNWEC.2010.5673234","DOIUrl":"https://doi.org/10.1109/WNWEC.2010.5673234","url":null,"abstract":"As the support structure of wind turbine, the tower bears alternating loads of wind when the wind turbine runs. To ensure the reliability of the wind turbine, it's necessary to carry out modal analysis on the tower, and this would prevent the natural frequency of the tower close to the rated speed of wind turbine. In this paper, finite element analysis of the tower is solved using ANSYS, and the natural frequencies and modes of the tower are presented. After comparing the results of three models, a simple model for modal analysis, which can be calculated in short time, is finally determined.","PeriodicalId":171339,"journal":{"name":"2010 World Non-Grid-Connected Wind Power and Energy Conference","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125668045","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: 7
Construction of non-grid-connected wind power industrial bases in Jiangsu coastal areas 江苏沿海地区非并网风电产业基地建设
2010 World Non-Grid-Connected Wind Power and Energy Conference Pub Date : 2010-12-23 DOI: 10.1109/WNWEC.2010.5673584
Chunpeng Jin, Zhiying Zhou, Limin Gu, Ke Bai
{"title":"Construction of non-grid-connected wind power industrial bases in Jiangsu coastal areas","authors":"Chunpeng Jin, Zhiying Zhou, Limin Gu, Ke Bai","doi":"10.1109/WNWEC.2010.5673584","DOIUrl":"https://doi.org/10.1109/WNWEC.2010.5673584","url":null,"abstract":"With the increasing energy prices and discharge of greenhouse gas, the current energy consumption calls for large-scale application of renewable energies. Among all new types of energy, the development of wind power is so fast, only second to water energy. Jiangsu lies in an area where wind energy is abundant, especially in the Jiangsu coastal areas, which provides a large space for wind power development. Application of large scale non-grid-connected wind power is one of the methods to multi-directional developing wind power. According to non-grid-connected wind power theory, non-grid-connected wind power can be applied to a series of high energy consumption industries. In this paper, the authors study the industrial chain of “applying non-grid-connected wind power to high energy consumption industries” under the instruction of non-grid-connected wind power theory, and put forward some suggestions for constructing industrial bases in Jiangsu coastal areas.","PeriodicalId":171339,"journal":{"name":"2010 World Non-Grid-Connected Wind Power and Energy Conference","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117226011","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: 0
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