| 基于Rogowski永磁式涡流缓速器电磁场与制动力矩研究 |
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| 引用本文： | 赵小波,姬长英,黄亦其,周俊. 基于Rogowski永磁式涡流缓速器电磁场与制动力矩研究[J]. 农业机械学报, 2009, 40(1): 35-39 |
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| 作者姓名： | 赵小波 姬长英 黄亦其 周俊 |
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| 作者单位： | 南京农业大学工学院,南京,210031;南京农业大学工学院,南京,210031;南京农业大学工学院,南京,210031;南京农业大学工学院,南京,210031 |
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| 摘 要： | 永磁式涡流缓速器电磁场分析是其设计的核心.为了研究永磁式涡流缓速器电磁场分布,将缓速器的永磁体等效为磁化电流,从麦克斯韦方程组出发,应用Rogowski方法,研究了气隙磁场分布,计算了转子鼓中的涡流密度,推导出了永磁式涡流缓速器的制动力矩计算公式.采用Rogowski方法不仅清楚地揭示出永磁式涡流缓速器的电磁场物理本质,而且制动力矩理论计算值与缓速器台架试验结果的误差小于10%,在可接受范围内.
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| 关 键 词： | 车辆 永磁式涡流缓速器 电磁场 Rogowski方法 制动力矩 制动性能 |
Research on Electromagnetic Field and Braking Torque for Permanent Magnet Type Eddy Current Retarder Based on Rogowski Method |
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| Zhao Xiaobo,Ji Changying,Huang Yiqi,Zhou Jun. Research on Electromagnetic Field and Braking Torque for Permanent Magnet Type Eddy Current Retarder Based on Rogowski Method[J]. Transactions of the Chinese Society for Agricultural Machinery, 2009, 40(1): 35-39 |
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| Authors: | Zhao Xiaobo Ji Changying Huang Yiqi Zhou Jun |
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| Affiliation: | College of Engineering;Nanjing Agricultural University;Nanjing 210031;China |
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| Abstract: | Electromagnetic field analysis for permanent magnet type eddy current retarder is the key part for designing.In order to research electromagnetic field distribution of the retarder,permanent magnet was made equivalent to a magnetized current.Flux density and eddy-current density in the air-gap and rotor of retarder were analysed and calculated respectively based on Rogowski method;meanwhile, the computation formulae of its braking torque were derived in order to reflect the relationship between braking torq... |
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| Keywords: | Vehicle Permanent magnet type eddy current retarder Electromagnetic field Rogowski method Braking torque Braking performance |
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