电工技术学报  2018, Vol. 33 Issue (19): 4563-4572    DOI: 10.19595/j.cnki.1000-6753.tces.171477
电机与电器 |
基于多场耦合的风电机组熵产极小化分析
温彩凤1,2,3, 张建勋1, 彭海伦1, 汪建文1,2
1. 内蒙古工业大学能源与动力工程学院 呼和浩特 010051;
2. 风能太阳能利用技术省部共建教育部重点实验室(内蒙古工业大学) 呼和浩特 010051;
3.中国科学院新疆理化技术研究所 乌鲁木齐 830011
Entropy Generation Minimization Analysis of Wind Turbines Based on Multi Field Coupling
Wen Caifeng1,2,3, Zhang Jianxun1, Peng Hailun1, Wang Jianwen1,2
1. College of Energy and Power Engineering Inner Mongolia University of Technology Hohhot 010051 China;
2. Key Laboratory of Wind Energy and Solar Energy Technology Ministry of Education Inner Mongolia University of Technology Hohhot 010051 China;
3. Xinjiang Technical Institute of Physics & Chemistry CAS Urumchi 830011 China
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摘要 针对永磁风电系统产能效率低、输出稳定度不高等问题,综合考虑损耗热功及换热性能,视风电机组为孤立系统,并基于熵增原理建立熵产模型,结合有限体积元分析结果并运用场协同理论,进行热功产生及扩散过程中熵产率动态分析,进而探究损耗与传热特性、流-热-磁三场耦合机理及熵产率分布规律。最终以极小熵产率为目标,通过调节来流风速、机组偏航角、齿槽结构及定、转子间气隙长度等关键影响因素,确定机组最佳运行工况及磁-热结构,提出风电机组极小熵产率优化方案。
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温彩凤
张建勋
彭海伦
汪建文
关键词 多场耦合有限体积元熵增原理极小熵产率最佳工况    
Abstract:The problem of low productivity and low output stability of permanent magnet wind power system was aimed at in this research. The loss of heat and heat transfer performance was considered, and the wind turbine was regarded as an isolated system. Entropy entropy production model was established. The dynamic process of thermal power generation and diffusion entropy generation was analyzed. The loss, the heat transfer characteristics, the three field coupling mechanism and the entropy production rate distribution law were studied. Finally, the minimum entropy production rate was taking as the target. The optimal operating conditions and the magnetic thermal structure of the unit were determined by adjusting the key factors, such as the incoming wind speed, the yaw angle of the unit, gap structure and air gap length between stator and rotor and so on. The minimum entropy production rate optimization scheme of the wind turbine was proposed.
Key wordsMulti field coupling    finite volume element    entropy principle    minimum entropy production    optimum condition   
收稿日期: 2017-10-31      出版日期: 2018-10-15
PACS: TM315  
基金资助:内蒙古自治区自然科学基金资助项目(2015BS0502)
作者简介: 温彩凤 女,1980年生,副教授,硕士生导师,研究方向为风电系统多因素耦合对输出特性的影响。E-mail:wencfg@163.com;张建勋 男,1993年生,硕士研究生,研究方向为永磁风力发电机三场耦合机理。E-mail:1078098503@qq.com(通信作者)
引用本文:   
温彩凤, 张建勋, 彭海伦, 汪建文. 基于多场耦合的风电机组熵产极小化分析[J]. 电工技术学报, 2018, 33(19): 4563-4572. Wen Caifeng, Zhang Jianxun, Peng Hailun, Wang Jianwen. Entropy Generation Minimization Analysis of Wind Turbines Based on Multi Field Coupling. Transactions of China Electrotechnical Society, 2018, 33(19): 4563-4572.
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https://dgjsxb.ces-transaction.com/CN/10.19595/j.cnki.1000-6753.tces.171477          https://dgjsxb.ces-transaction.com/CN/Y2018/V33/I19/4563