| 利用折半查找和拉格朗日插值算法计算机车牵引/制动包络线的方法 |
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| 引用本文： | 黄浩,曹霄,何伟.利用折半查找和拉格朗日插值算法计算机车牵引/制动包络线的方法[J].机车电传动,2012(5):99-102,106. |
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| 作者姓名： | 黄浩 曹霄 何伟 |
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| 作者单位： | 1. 株洲南车时代电气股份有限公司技术中心,湖南株洲,412001
2. 株洲变流技术国家工程研究中心有限公司,湖南株洲,412001 |
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| 摘 要： | 提出了一种利用折半查找算法查找电机转速数据,在查找不成功时再使用拉格朗日插值算法计算机车牵引制动电机转矩值的方法,通过将此算法与经典电机特性包络线计算算法在计算精度和时间复杂度上进行对比分析,验证了该算法的性能较经典计算方法计算精度更高,而时间复杂度又在可接受范围内。
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| 关 键 词： | 折半查找 拉格朗日插值 包络线 牵引/制动 电机转速 |
Method for Calculating Locomotive Traction & Brake Limited Line Based on Binary Search and Lagrange Interpolation |
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| HUANG Hao
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CAO Xiao
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HE Wei.Method for Calculating Locomotive Traction & Brake Limited Line Based on Binary Search and Lagrange Interpolation[J].Electric Drive For Locomotive,2012(5):99-102,106. |
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| Authors: | HUANG Hao CAO Xiao HE Wei |
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| Institution: | 1.Technology Center,Zhuzhou CSR Times Electirc Co.,Ltd.,Zhuzhou,Hunan 412001,China;2.Zhuzhou National Engineering Research Center of Converters Co.,Ltd.,Zhuzhou,Hunan 412001,China) |
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| Abstract: | A method was proposed by using binary search arithmetic searching motor speed,if missed then employing Lagrange interpolation method to calculating motor torque of locomotive’s traction and brake.By comparing calculation accuracy and time complexity with the classical algorithm in envelope curve of motor characteristic,the presented method was proved have better calculation accuracy and acceptable time complexity. |
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| Keywords: | binary search Lagrange interpolation envelope curve traction and brake motor speed |
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