| 基于前馈补偿的永磁同步电机电流谐波抑制方法 |
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| 引用本文： | 李毅拓,陆海峰,瞿文龙,盛爽.基于前馈补偿的永磁同步电机电流谐波抑制方法[J].清华大学学报(自然科学版),2012(3):362-366. |
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| 作者姓名： | 李毅拓 陆海峰 瞿文龙 盛爽 |
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| 作者单位： | 清华大学电机工程与应用电子技术系电力系统及发电设备控制和仿真国家重点实验室 |
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| 基金项目： | 国家自然科学基金资助项目(50807028);台达基金项目(DREG2011004) |
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| 摘 要： | 为抑制永磁同步电机电流的谐波,提出了一种前馈补偿的方法。通过对电机dq轴电流的Fourier分析,研究电机dq轴电流谐波的频率组成及其产生原因。利用前馈补偿的方法,对不同频率的电流谐波分别进行补偿。通过自动搜寻算法,得到补偿电压的幅值和相位,对电机的不同运行状况进行在线补偿。在搭建的1.25kW的永磁同步电机系统上进行了实验,经前馈补偿后,dq轴电流的6、12次谐波降低了85%左右。
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| 关 键 词： | 永磁同步电机 电流谐波 前馈补偿 Fourier分析 |
PMSM current harmonics suppression based on feedforward compensation |
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| LI Yituo,LU Haifeng,QU Wenlong,SHENG Shuang.PMSM current harmonics suppression based on feedforward compensation[J].Journal of Tsinghua University(Science and Technology),2012(3):362-366. |
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| Authors: | LI Yituo LU Haifeng QU Wenlong SHENG Shuang |
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| Affiliation: | (State Key Laboratory of Control and Simulation of Power System and Generation Equipments,Department of Electrical Engineering, Tsinghua University,Beijing 100084,China) |
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| Abstract: | A feedforward compensation method is given to suppress current harmonics in a permanent magnet synchronous motor(PMSM).The frequencies of the dq-axes current harmonics and the emergent causes are analyzed using Fourier analyses of the dq-axes currents.The harmonics of different frequencies are then compensated for by the system.The phases and amplitudes of the compensation voltage are obtained for different motor conditions using an auto-search algorithm for on-line compensation.Tests on a 1.25 kW PMSM system show that the 6-th and 12-th dq-axes current harmonics are reduced by about 85%. |
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| Keywords: | permanent magnet synchronous motor(PMSM) current harmonics feedforward compensation Fourier analysis |
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