【摘要】 直流电机位置伺服系统是天然气发动机电子调速系统的关键组成部分。本文利用Freescale公司的MC9S12型单片机,结合电机位置反馈和电枢电流检测,研制出了数字式PWM型伺服驱动器。该驱动器充分利用单片机的内嵌资源,实现了位置、速度和电流三闭环控制策略。更多还原

【Abstract】 DC motor position servo system is an important component of the digital speed governor system utilized on natural gas engine. The PWM servo motor driver based on a digital controller MC9S12 produced by Freescale has been designed with position and current feedback. The driver realizes classic three-loop control method including position loop, speed loop and current loop PID computation by making full use of embedded resources of MCU.更多还原