随着微处理器的快速发展，永磁同步电动机（PMSM）驱动系统广泛应用于需要高精度控制的工业领域。为了克服设计PMSM系统的复杂和费时的局限性，提出一种PMSM速度控制的磁场定向控制算法(FOC)。该算法在MATLAB/Simulink中实现，利用其中的标准模块，利用Matlab的自动代码生成工具，可在DSP微处理器中实现。采用了STM32F4微控制器。为处理电流反馈信号，引入主动式电流读取误差补偿器。利用由3个双向5-A Hall传感器执行的模数转换器，使信号精度达10 mA、10 Bit。在0~2000 r/min范围内，试验了带传感器的PMSM。对期望速度的阶跃响应实验表明：整个系统的动态性能和稳态性能良好。%PMSM (permanent magnet synchronous motor) drive systems has been having general used in various industries needed high precision control due to a rapid development of microprocessors. The proper system conifguration is stil complex and time consuming. To overcome such a limitation, this paper presents a FOC (Field Oriented Control) algorithm for PMSM speed control algorithm performed in Matlab/Simulink by using standard blocks only, which is realized in almost any DSP (Digital Signal Processing) processor by using auto-coding tool in Matlab. STM32F4 microcontrol er was employed. Simple Active Currents Reading Error Compensator was introduced for appropriate feedback signals ifltering. Precision of the signal was set to around 10 mA of current–10 Bit with an Analog-to-Digital Converter operated by three bidirectional 5-A Hal current sensors. A PMSM sensored motor was tested in 0~2 000 r/min. The experimental step responses to desired speeds show good dynamic and smooth performance of the entire system.
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