摘要
为了解决瓦楞纸生产线的多台电机的控制问题,本文设计了PC机与单片机相结合的上位机及下位机自动控制系统。研究了利用新型的C8051单片机实现直流电机PWM控制的方案。该方案利用C8051中的PCA阵列来产生PWM波形,避免了采用软件延时法占用CPU资源的弊端。为了防止电机的上下桥臂直通,采用受限单极性可逆PWM驱动电路。控制器采用PID算法,实践证明该系统响应速度快,稳定性好,有较好的实用价值。
In order to solve the multi-motor control problem for the corrugated paper line,an automatic control system in which PC is used as upper computer and microcontrollers are used as lower computers was designed.The realization of PWM control method for DC motor was studied using a new type of microcontroller C8051.The PCA array of C8051 was utilized to produce PWM wave in this method,it avoided the disadvantages of occupying CPU resources when software delay method is utilized.In order to prevent the short circuit of upper and lower bridge arm,a limited uni-polarity reversible PWM driving circuit was utilized.The PID algorithm was used in the controller.The practice showed that the system has a fast response,good stability and practical value.
出处
《大电机技术》
北大核心
2011年第3期61-64,共4页
Large Electric Machine and Hydraulic Turbine
基金
教育部留学回国人员科研启动基金资助项目(教外司留[2009]8号)
