基于DSP-FPGA的永磁电机数字控制系统设计  

Design of Digital Control System of Permanent Magnet Motor Based on DSP-FPGA

作　　者：洪剑锋[1] 宋凤林[1] 黄劭刚[1] 

机构地区：[1]南昌大学信息工程学院,南昌330031

出　　处：《组合机床与自动化加工技术》2015年第6期96-100,共5页Modular Machine Tool & Automatic Manufacturing Technique

基　　金：江西省研究生创新专项资金资助(YC2013-S059)

摘　　要：以交流永磁电机矢量控制原理为基础,介绍了一种基于DSP-FPGA的永磁电机数字控制系统的设计,完成了数字控制系统的总体架构及相应的硬件、软件设计,同时为了提高控制系统的动态性能,采用了基于CORDIC变换的旋转变压器解码算法得到转角正余弦函数值与转速信息,且DSP与FPGA之间采用高速同步串行通信SPI来实现。在对总体设计分析的基础上,通过计算机软件仿真和对实际永磁电机的控制实验结果表明,所设计的数字控制系统具有结构简单、较好的动静态特性与快速性能,在实际应用中具有较好的应用前景。This paper presents the design of digital control system of permanent magnet motor based on DSPFPGA and permanent magnet motor FOC principles. It completes the overall structure and the design of corresponding hardw are and softw are of digital control system. In order to improve the dynamic performance of the control system,This paper uses resolver decoding algorithm based on CORDIC to obtain angle cosine and sine value and speed information,And uses high-speed synchronous serial communication SPI betw een DSP and FPGA. Basis on the of the overall design and analysis,simulation by computer softw are and control experimental on actual permanent magnet motor results show s that the digital control system has a simple designed structure,better dynamic and static performance. Therefore,this control system has good prospect in practical applications.

关 键 词：永磁电机 DSP-FPGA 矢量控制 CORDIC旋变解码 

分 类 号：TH166[机械工程—机械制造及自动化] TG506[金属学及工艺—金属切削加工及机床]