基于电流变化率检测技术的无模型预测电流控制  

Model-free predictive current control based on current difference detection technique

作　　者：薛映霞 XUE Yingxia(State Grid Yuncheng Electric Power Supply Company,Yuncheng 044000,China)

机构地区：[1]国网运城供电公司,山西运城044000

出　　处：《无线互联科技》2024年第15期113-116,共4页Wireless Internet Science and Technology

摘　　要：为提高永磁同步电机控制系统定子电流的跟踪响应能力,文章提出一种无模型预测电流控制算法。算法不依赖于电机模型以及定子电阻、电感等电机参数,在一个采样周期内检测2次电流,根据检测的定子电流以及定子电流的变化率,通过简单的运算预测定子电流。在MATLAB/simulink中搭建i d=0矢量控制系统仿真模型,分别验证基于模型和无模型预测电流控制算法,仿真结果表明采用提出的算法,控制系统在暂态和稳态下都有良好的电流跟踪能力。A model-free predictive current control algorithm for interior permanent magnet synchronous(IPMSM)motor control system is proposed in this paper,which can improve the stator current tracking response ability.The algorithm does not depend on the motor model,such as stator resistance,inductance.The stator current is measured twice in a sampling period,according to the detected stator current and current difference.The stator current can be predicted by a simple operation.The simulation model of vector control system based on i d=0 for IPMSM was built in MATLAB/simulink.The model-based and model-free predictive current control algorithms are verified respectively.The simulation results show that the system which adopted proposed algorithm has good current tracking response ability both in transient state and steady state.

关 键 词：永磁同步电机 预测电流控制 电流变化率 电流跟踪 

分 类 号：TM351[电气工程—电机]