| 基于级联型SOGI的永磁同步电机谐波电流抑制方法研究 |
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| 引用本文： | 李生民,梁吉宁,肖亚敏.基于级联型SOGI的永磁同步电机谐波电流抑制方法研究[J].航空动力学报,2019,46(8):31-36. |
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| 作者姓名： | 李生民 梁吉宁 肖亚敏 |
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| 作者单位： | 西安理工大学 自动化与信息工程学院,陕西 西安710048;陕西省复杂系统控制与智能信息处理重点实验室,陕西 西安710048,西安理工大学 自动化与信息工程学院,陕西 西安710048;陕西省复杂系统控制与智能信息处理重点实验室,陕西 西安710048,西安理工大学 自动化与信息工程学院,陕西 西安710048;陕西省复杂系统控制与智能信息处理重点实验室,陕西 西安710048 |
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| 基金项目： | 国家自然科学基金项目(51607142) |
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| 摘 要： | 伺服驱动器由于具有很强的非线性,导致永磁同步电机(PMSM)的定子电流中含有大量的高次谐波并且引发较大的转矩脉动。针对这一问题,提出基于级联型二阶广义积分器(SOGI)的谐波抑制方法,将级联型SOGI与电流环d、q轴的PI控制器并联,利用级联型SOGI提取d、q轴电流中的6次谐波分量,并将其注入到PI控制器的输出电压中,从而抵消参考电压中的谐波。仿真结果表明:采用基于级联型SOGI的电压补偿法进行谐波抑制,电流波形的畸变得到了明显改善,证明了所提算法的有效性。
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| 关 键 词： | 永磁同步电机 电流谐波 谐波电压补偿 级联型二阶广义积分器 |
| 收稿时间： | 2019/4/11 0:00:00 |
Current Harmonics Suppression Method of Permanent Magnet SynchronousMotor Based on Cascaded SecondOrder Generalized Integrator |
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| LI Shengmin,LIANG Jining and XIAO Yamin.Current Harmonics Suppression Method of Permanent Magnet SynchronousMotor Based on Cascaded SecondOrder Generalized Integrator[J].Journal of Aerospace Power,2019,46(8):31-36. |
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| Authors: | LI Shengmin LIANG Jining and XIAO Yamin |
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| Abstract: | Due to the strong nonlinearity of the servo drive, the stator current of permanent magnet synchronous motor (PMSM) contained a large number of higher harmonics and caused a large torque ripple. To solve this problem, a harmonic suppression method based on cascaded secondorder generalized integrator (SOGI) was proposed. Cascaded SOGI was parallel to current loop dqaxis PI controllers. The sixth harmonic component of dqaxis current was extracted by cascaded SOGI and injected into the output voltage of PI controllers, which could offset the harmonic in reference voltage. The simulation results showed that the distortion of current waveform had been greatly reduced by using voltage compensation method based on cascaded SOGI, which confirmed the effectiveness of the algorithm. |
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| Keywords: | permanent magnet synchronous motor (PMSM) current harmonics harmonic voltage compensation cascaded secondorder generalized integrator |
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