摘要
设计了基于DSP2812永磁同步电动机(PMSM)矢量控制系统,采用高性能的霍尔电流传感器采集电流信号、隔离电压传感器采集母线电压信号的措施对硬件进行了优化设计,提高了硬件的效率,另外,采用片外高精度AD7606提高A/D转换精度。在软件上,根据有无霍尔信号提出了矢量控制中扇区的混合计算方法,提高了扇区判断的准确性与可靠性;另外,又将算法分为实时算法和非实时算法,在实时算法中使用IQmath函数库提高算法运算速度,提高了控制的实时性。通过MATLAB仿真及试验验证了系统良好的运行效果。
In this paper,a vector control system of permanent magnet synchronous motor( PMSM) was designed based on DSP2812. In hardware,the optimal design methods were adopted to improve the efficiency of hardware by using high performance Hall current sensor to collect current signal,using isolated voltage sensor to collect busbar voltage signal. In addition,a high precision AD7606 was utilized to improve A / D conversion accuracy. In software,a mixed calculation method of sector in vector control was put forward according to the presence of Hall signal,resulting in the better accuracy and reliability of the sector judgment. In addition,the algorithm was divided into real- time algorithm and non real time algorithm. In the real- time algorithm,the IQmath function library was applied to improve the running speed of the algorithm,and increase the real- time of the control. A good running effect of the system was verified by MATLAB simulation and actual operation.
出处
《微特电机》
北大核心
2016年第3期62-64,共3页
Small & Special Electrical Machines
基金
辽宁省教育厅一般项目(L2012402)
渤海大学教学改革项目(YG13YB011)
