带有LC正弦波滤波器的内置式永磁同步电机电流控制器谐振抑制参数设计  

Parameter Design of the Current Controller for Interior Permanent Magnet Synchronous Motor with LC Sinusoidal Filter to Suppress Resonance

作　　者：吴翔[1] 李超[1] 刘志恒[1] 韩耀飞 何凤有[1] Wu Xiang;Li Chao;Liu Zhiheng;Han Yaofei;He Fengyou(School of Electrical Engineering China University of Mining and Technology Xuzhou,221008 China;Institute of Rail Transit Tongji University Shanghai,200092 China)

机构地区：[1]中国矿业大学电气工程学院,徐州221008 [2]同济大学磁浮交通工程技术研究中心,上海200092

出　　处：《电工技术学报》2023年第22期6082-6093,共12页Transactions of China Electrotechnical Society

基　　金：江苏省自然科学基金(BK20200652);国家自然科学基金(52007190)资助项目。

摘　　要：带有LC正弦波滤波器的内置式永磁同步电机系统形成了一个LCL电路,矢量控制系统的稳定性会受到LCL电路固有谐振现象的影响。通过在电流控制器中引入有源阻尼可从理论上实现谐振抑制,为了获得满意的谐振抑制效果,必须对电流控制器的参数进行合理设计。该文研究带有LC正弦波滤波器的内置式永磁同步电机电流控制器谐振抑制参数设计方法,分析了带有电容电流反馈有源阻尼(CCFAD)的电流控制器的频率特性,通过频域稳定判据分析了电流比例积分调节器参数、有源阻尼系数、LC正弦波滤波器参数与电机参数对系统谐振现象的影响机理,给出了电流控制器谐振抑制参数设计方法。通过实验验证了所提方法的有效性。An interior permanent magnet synchronous motor(IPMSM)is usually powered by a voltage source inverter(VSI).The fast switching action of power switching devices leads to a large voltage change rate(du/dt),which brings about adverse effects that cannot be ignored,such as the increase of insulation stress of the motor,the induction of shaft voltage and shaft current,and the generation of prominent electromagnetic interference.In some particular industrial application scenarios,such as marine surveys,oil field drilling,and mining,the VSI installation location is far away from the IPMSM,and the“long-line effect”makes such adverse effects more prominent.LC sinusoidal filter can convert VSI output voltage into a sine wave,which applies to any cable length and can effectively solve the above problems.However,adding an LC sine wave filter increases the order of the system model.It will produce an inherent resonance phenomenon in the current loop,which poses a challenge to the current controller design of IPMSM.With the flux-oriented control,resonance suppression can be achieved theoretically by introducing active damping(AD)into the current controller.When the AD is introduced into the IPMSM current controller with an LC sinusoidal filter,the setting of proportional-integral(PI)control parameters and AD coefficient used in the current loop is critical to the stability of the system.However,there are few research results on the resonance suppression parameter design of AC motor current controllers with LC sinusoidal filters.The PI controller parameters,AD coefficient,IPMSM parameters,and LC sinusoidal filter parameters are coupled.If the controller parameters are set unreasonably,the resonance phenomenon of the system will not be effectively suppressed,which will lead to high voltage and current in the drive system and bring great risks to the operation of the system.In order to obtain a satisfactory resonance suppression effect and guarantee the control performance of the IPMSM with an LC sinusoidal filter,the paramete

关 键 词：LC正弦波滤波器 内置式永磁同步电机 PI控制器 有源阻尼 

分 类 号：TM351[电气工程—电机]