In the analysis of electric variable pitch system structure and functional requirements,the hardware and program design of electric variable pitch servo drive control system is put forward ,which is suit for brush DC motors and brushless DC motors. The core of the control system hardware is TMS320LF2407A. In this system ,according to the performance requirements of servo-system. The control structure of position closed-loop,speed closed-loop and current closed-loop is adopted.%在分析了电动变桨距系统的结构和功能要求的基础上,提出了适用于有刷直流电动机和无刷直流电动机的电动变桨距伺服驱动器控制系统的硬件、软件设计方案,系统以TMS320LF2407A微控制器为控制系统核心器件,采用位置、速度、电流三闭环的控制结构以满足电动变桨距系统的性能要求.
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