中国电机工程学报2025，Vol.45Issue(7)：2810-2820,中插32,12.DOI:10.13334/j.0258-8013.pcsee.232670
基于优化过调制方法的永磁同步电机动态电流轨迹追踪策略
Dynamic Current Trajectory Tracking Strategy With Optimized Overmodulation Method for Permanent Magnet Synchronous Motor Drives
摘要
Abstract
To address the voltage insufficiency during abrupt current command changes in deadbeat predictive current control,an overmodulation method which dynamically optimizes the current reference value is proposed.First,using voltage vector hexagons to predict the current hexagon in the subsequent switching period,future feasible operating zones can be accurately predicted.This mapping provides convenience for accurate current trajectory planning.Then,the crossing point between the predicted current vector hexagon and the expected current trajectory is determined as an optimized current reference.The purpose is to mitigate the current trajectory drift and ensure the maximum voltage utilization in the overmodulation zone,and a simplified method of calculating the crossing points is provided.By combining DPCC with the proposed overmodulation method,dynamic current reference optimization and deadbeat response in the overmodulation zone can be achieved,and accurate current trajectory tracking can be realized.Taking id=0 and id=-0.5iq trajectory tracking as validation examples,the proposed method is compared with the DPCC with a traditional constant saturation limitation method.Both simulation and experimental results have verified the effectiveness of the proposed method.关键词
无差拍预测电流控制/永磁同步电机/轨迹追踪/过调制算法Key words
deadbeat predictive current control(DPCC)/permanent magnet synchronous motor(PMSM)/trajectory tracking/overmodulation zone分类
信息技术与安全科学引用本文复制引用
金振,徐炜,王激尧,徐涛..基于优化过调制方法的永磁同步电机动态电流轨迹追踪策略[J].中国电机工程学报,2025,45(7):2810-2820,中插32,12.基金项目
国家自然科学基金项目(52275009,52207038).Project Supported by National Natural Science Foundation of China(52275009,52207038). （52275009,52207038）
