永磁同步电机自适应逆变器非线性补偿  

Adaptive Inverter Non-Linear Compensation for Permanent Magnet Synchronous Motor

作　　者：甘辉 孙乐 丁一平 GAN Hui;SUN Le;DING Yiping(School of Automation,Nanjing University of Science and Technology,Nanjing 210094,China)

机构地区：[1]南京理工大学自动化学院,南京210094

出　　处：《微特电机》2023年第9期45-50,58,共7页Small & Special Electrical Machines

摘　　要：提出一种永磁同步电机基于α,β轴电流误差的自适应逆变器非线性补偿方法,在电压前馈补偿的基础上,利用逆变器非线性参数不确定性导致的电流畸变,将α轴和β轴的电流误差作为PI自适应控制的输入,其输出作为修正量叠加到电压前馈补偿的α,β轴的指令电压中,实时修正由于逆变器非线性参数不确定性导致的补偿误差。该方法有效地改善了电机三相电流的畸变,增强了电机控制的稳定性。仿真和实验结果验证了该方法的有效性。A permanent magnet synchronous motor adaptive inverter nonlinear compensation method based onαβ-axis current error was proposed.On the basis of voltage feedforward compensation,the current distortion caused by the uncertainty of inverter nonlinear parameters was utilized,and the current errors ofα-axis andβ-axis were used as inputs of PI adaptive control,and their outputs were superimposed as corrections into the command voltage ofαβ-axis of the voltage feedforward compensation,so that the compensation errors due to the nonlinear parameter uncertainty of inverter could be corrected in real time.The method effectively improved the distortion of three-phase current of the motor and enhanced the stability of motor control.Simulation and experimental results verified the effectiveness of the proposed method.

关 键 词：永磁同步电机 非线性 电流误差 自适应补偿 

分 类 号：TM351[电气工程—电机]