一种基于多调整策略的电机相电流重构技术

为解决不可重构区域内的相电流重构问题,同时减小对相电流谐波含量的影响,提出了一种基于多调整策略的电机相电流重构技术.对电压矢量空间的不可重构区域进行划分,通过在不同的区域内采用不同的调整策略实现相电流重构.最后利用Matlab/simulink搭建基于相电流重构的永磁同步电机SVPWM矢量控制仿真模型.仿真结果表明该方...

A motor phase current reconstruction technology based on multiple adjustment strategies

To solve the problem of phase current reconstruction in a non-reconstructable area, while reducing the impact on the phase current harmonic content, this paper proposes a motor phase current reconstruction technology based on multiple adjustment strategies. The non-reconstructable area of the voltage vector space is divided, and the phase current reconstruction is realized by adopting different adjustment strategies in different areas. Finally, Matlab/simulink is used to build a permanent magnet synchronous motor SVPWM vector control simulation model based on phase current reconstruction. The results show that this scheme can effectively reconstruct the phase currents in the non-reconstructable area. At the same time the phase current can effectively be reconstructed in the process of the starting of the motor with load, switching the load, and acceleration and deceleration of the motor. The FFT analysis results show that the impact on the harmonics of the phase current of this scheme is small.This work is supported by the National Natural Science Foundation of China (No. 51467006).