基于Adaline算法的高速磁浮列车谐波检测及抑制方法
毛中亚王勇李凌霄王宗艳
Harmonic Detection and Suppression Method for High-speed Maglev Trains Based on Adaline Algorithm
MAO ZhongyaWANG YongLI LingxiaoWANG Zongyan
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作者信息:同济大学电子与信息工程学院， 201804， 上海
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Affiliation:School of Electronic and Information Engineering, Tongji University, 201804, Shanghai, China
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关键词:
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Key words:
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DOI:10.16037/j.1007-869x.2024.02.004
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中图分类号/CLCN:U266-4
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栏目/Col:学术专论
摘要:
［目的］为了减小高速磁浮谐波对牵引网产生的影响, 保障高速磁浮列车的正常运行，需研究高速磁浮牵引供电系统中的谐波特性及其相应的谐波抑制方法。［方法］分析了高速磁浮牵引供电系统的构成，并对双三相半控12脉冲多重整流电路及其谐波进行了理论分析和仿真。根据 Adaline 神经网络算法原理和高速磁浮谐波特性，构建基于Adaline的高速磁浮谐波检测模型。采用谐波补偿控制策略，产生与检测出的谐波方向相反、大小相等的电流作为补偿信号，对系统畸变电流进行谐波抑制。［结果及结论］仿真结果表明：采用基于Adaline算法的谐波检测及抑制方法前，谐波畸变率为11.16%，而采用该方法后，各次谐波含量明显降低，谐波畸变率下降为1.41%。研究结果表明：所提谐波检测及抑制方法可以有效减少谐波畸变，提高牵引供电系统的稳定性和工作效率。
Abstracts:
［Objective］ In order to reduce the impact of high-speed maglev harmonics on traction network, and to ensure the normal operation of high-speed maglev trains, it is necessary to study the harmonic characteristics of the high-speed maglev traction power supply system, and the corresponding harmonic suppression methods. ［Method］ The composition of the high-speed maglev traction power supply system is studied, the dual three-phase half-controlled 12-pulse multiple rectifier circuit and its harmonics are theoretically analyzed and simulated. Based on the principle of the Adaline neural network algorithm and the harmonic characteristics of high-speed maglev trains, a high-speed maglev harmonic detection model based on Adaline is constructed. A harmonic compensation control strategy is used to generate compensating signal of current with equal magnitude but opposite direction to the detected harmonics, for harmonic suppression of the system distorted currents. ［Result & Conclusion］ Simulation results indicate that before adopting the harmonic detection and suppression method based on Adaline algorithm, the harmonic distortion rate is 11.16%. After applying this method, the content of each harmonic decreases significantly, and the harmonic distortion rate decreases to 1.41%. The research results demonstrate that the proposed harmonic detection and suppression method can effectively reduce harmonic distortion, thereby improving the stability and operational efficiency of the traction power supply system.
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