摘要
为了避免解耦,建立两相静止坐标系下以定子磁链为状态变量的IPMSM状态空间模型,构建无差拍全阶状态观测器,提高定子磁链的观测精度,改善系统的稳态性能.将驱动系统中速度控制环的输出作为转矩角的给定值,移除转矩控制环,通过定子磁链控制环来调节IPMSM的转矩输出.根据定子磁链控制环的极点位置来调节系统的前向增益矩阵,计算参考电压矢量.与传统方案的实验结果相比,所提出的控制方案具有较低的转矩脉动输出和较高的转矩响应速度.
The state-space model for IPMSM in static coordinate was established to avoid decoupling,which chose the stator flux as the state vector.A dead-beat full-order state observer was established to provide the accurately estimated stator flux and improve the steady-state performance.The output of the speed loop was employed as the desired torque angle,the torque control loop was removed,and the stator flux control loop was utilized to realize the torque control.The forward gain matrix of the desired stator flux vector was regulated according to the pole placement of the stator flux control loop and the reference voltage vector was calculated.Compared with the experimental results of traditional schemes,the proposed scheme owns lower torque ripple output and higher torque response speed.
出处
《浙江大学学报（工学版）》
EI
CAS
CSCD
北大核心
2017年第12期2420-2428,共9页
Journal of Zhejiang University：Engineering Science
