中国电机工程学报2025，Vol.45Issue(19)：7743-7754,中插47,13.DOI:10.13334/j.0258-8013.pcsee.240684
带LLCL滤波器的高速永磁同步电机低载波比电流阻尼控制器设计
Current Damping Controller for High-speed Permanent Magnet Synchronous Motor With LLCL Filter Under Low Carrier Ratio Conditions
摘要
Abstract
Equipping output filters can effectively reduce the stator current harmonic content and output voltage rate of change(du/dt)of high-speed permanent magnet motor drives.However,under high-power and low carrier ratio conditions,traditional L,LC,and LCL filters are larger in size.This paper applies LLCL filters to high-speed permanent magnet synchronous motors to reduce the volume,and proposes a resonance suppression method suitable for LLCL filters.The proposed controller is implemented by state feedback of the inverter output voltage and motor current,without additional sensors.Parametric design is realized based on the discrete domain model,and a detailed coefficient selection method is given to quickly and effectively complete the design of the resonance suppression controller.Theoretical analysis and experimental results show that compared with the LCL filter,the LLCL filter effectively reduces the output filter volume as well as weight.The proposed resonance suppression method can effectively suppress the resonance of the LLCL filter without additional sensors,and has good parameter robustness.关键词
高速永磁同步电机/LLCL输出滤波器/谐振抑制/单电机电流反馈Key words
high-speed permanent magnet synchronous motor/LLCL output filter/resonance suppression/single motor current feedback分类
动力与电气工程引用本文复制引用
周佳新,姚宇,彭飞,黄允凯..带LLCL滤波器的高速永磁同步电机低载波比电流阻尼控制器设计[J].中国电机工程学报,2025,45(19):7743-7754,中插47,13.基金项目
国家自然科学基金项目(52277037,52277036,52037002).Project Supported by National Natural Science Foundation of China(52277037,52277036,52037002). （52277037,52277036,52037002）
