永磁同步电机无差拍电流控制电流稳态误差消除算法  

Current Steady Error Elimination Algorithm for Permanent Magnet Synchronous Motor Dead-Beat Current Control

作　　者：谢传林 曾岳南[1] 王发良 许小龙[1] 沈志峰 XIE Chuanlin;ZENG Yuenan;WANG Faliang;XU Xiaolong;SHEN Zhifeng(School of Automation,Guangdong University of Technology,Guangzhou 510006,China)

机构地区：[1]广东工业大学自动化学院,广东广州510006

出　　处：《电机与控制应用》2018年第11期34-38,55,共6页Electric machines & control application

摘　　要：电流环的响应速度决定永磁同步电机伺服系统的响应速度。无差拍电流控制可以使电流环具有良好的响应速度,但当电机参数与控制算法中电机参数不匹配时电流会产生稳态误差,无法输出期望转矩。针对该问题将离散积分加入无差拍电流控制算法中并且给出积分系数的取值范围,消除了因电机参数变化而引起的电流稳态误差,提高了电流跟踪精度。最后通过仿真与试验验证了所提算法的有效性和实用性。The response specd of current loop of permanent magnet synchronous motor(PMSM)servo system determines the servo system response speed.The dead-beat current control allowed PMSM current control loop to have a good response speed.However,when the actual motor parameters did not match the motor parameters in the control algorithm,current steady error would be produced,and the desired torque could not be output.The discrete-time integral was added to the dead-beat current control algorithm and the range of integral coefficients was given,which eliminated the current steady error caused by the change of motor parameters and the accuracy of current tracking was improved.Finally,the validity and practicability of the proposed algorithm were verified by experiments.

关 键 词：永磁同步电机 无差拍电流控制 电流稳态误差 离散积分 

分 类 号：TM351[电气工程—电机]