| 不同钕铁硼磁体对兆瓦级风力发电机空载磁路的影响 |
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| 引用本文： | 刘华,秦宏伟,胡季帆,王庆凯,于永江.不同钕铁硼磁体对兆瓦级风力发电机空载磁路的影响[J].金属功能材料,2010,17(6):1-4,13. |
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| 作者姓名： | 刘华 秦宏伟 胡季帆 王庆凯 于永江 |
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| 作者单位： | 山东大学物理学院国家晶体材料重点实验室;烟台正海磁性材料股份有限公司; |
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| 基金项目： | 国家基础科学人才培养基金 |
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| 摘 要： | 本文研究了不同SH标号NdFeB永磁体对一种兆瓦级风力发电机空载性能的影响。在不改变发电机结构尺寸的情况下,气隙磁密、定子齿磁密和定子轭磁密随磁体SH标号的增高而线性增加,但增加的幅度小于剩磁增加的幅度;工作点数值虽有极微小增加,但基本保持不变;同时输出电压随着磁体SH标号的增高而增加。若通过改变永磁体的用量达到输出电压为额定电压的目的,高标号永磁体的用量体积随之减少。
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| 关 键 词： | 永磁材料 风力发电机 永磁体工作点 磁路计算 |
Influences of Different NdFeB Magnets Upon No-load Magnetic Circuits in Megawatt Wind Turbines |
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| LIU Hua,QIN Hong-wei,HU Ji-fan,WANG Qing-kai,YU Yong-jiang.Influences of Different NdFeB Magnets Upon No-load Magnetic Circuits in Megawatt Wind Turbines[J].Metallic Functional Materials,2010,17(6):1-4,13. |
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| Authors: | LIU Hua QIN Hong-wei HU Ji-fan WANG Qing-kai YU Yong-jiang |
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| Affiliation: | LIU Hua1,QIN Hong-wei1,HU Ji-fan1,WANG Qing-kai2,YU Yong-jiang2,(1.School of Physics,Shandong University,Jinan 250100,Shandong,China,2.Yantai Zhenghai Magnetic Material Co.Ltd,Yantai 264006,China) |
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| Abstract: | The influence of performance of NdFeB magnets upon the no-load behaviors in megawatt wind turbines are investigated.When geometry of generators does not change,the air-gap flux and flux density of stator,as well as the output voltage for generator are increase by using high performance magnets.However,the working point almost remains the same,neglecting very small changes.In order to remain the output voltage,the required volume of magnets decreases when high performance magnets are used. |
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| Keywords: | permanent magnets wind turbine working point magnetic circuit calculation |
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