Analysis and Control of Current Harmonic in IPMSM Field-Oriented Control System
Analysis and Control of Current Harmonic in IPMSM Field-Oriented Control System
复制标题
永磁同步电机磁场定向控制系统电流谐波分析与控制
DOI：
10.1109/tpel.2022.3155243
复制
发表时间：
2022-08
影响因子：
6.7
通讯作者：
Zhiwei Chen;T. Shi;Zhichen Lin;Zhiqiang Wang;Xin Gu
中科院分区：
文献类型：
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作者：
Zhiwei Chen;T. Shi;Zhichen Lin;Zhiqiang Wang;Xin Gu
内置式永磁同步电动机存在一定的电流谐波。为了准确控制电流谐波，本文从建立电流谐波计算模型、提取电流谐波、设计电流谐波调节器三个方面进行了研究。首次建立了考虑电流控制器引起的电压谐波和数字控制延时对电压谐波初相角影响的电流谐波计算模型。借助多重同步旋转坐标系变换，提出了一种更适合电机驱动领域的电流谐波提取方法，旨在提取电机d、q轴电流的谐波特征。在此基础上，将被控量和控制量统一在d-q坐标系下，分析电流谐波特性的耦合关系。在此基础上，设计了一种电流谐波解耦和电压谐波初相角补偿的PI电流谐波调节器，实现了对电流谐波的有效控制。最后通过仿真和实验验证了该方法的有效性和优越性。
There is a certain amount of current harmonics in interior permanent magnet synchronous motor. In order to accurately control the current harmonic, this article focuses on three aspects: establishing current harmonic calculation model, extracting current harmonic, and designing current harmonic regulator. A current harmonic calculation model, which considers the effect of voltage harmonics induced by current controllers and digital control delay on the initial phase angle of voltage harmonics, is established for the first time. With the help of multiple synchronous rotating frame transformation, a current harmonic extraction method more suitable for motor drive field, which aims to extract the current harmonic characteristics of d-axis and q-axis currents, is proposed. On this basis, the controlled quantity and control quantity are unified in d–q coordinate frame for analyzing the coupling relationship of current harmonic characteristics. And then a PI current harmonic regulator, including current harmonic decoupling and voltage harmonic initial phase angle compensation, is constructed, so as to realize the effective control of current harmonics. Finally, the effectiveness and superiority of the proposed method are verified by simulation and experiments.