关键词：位置式PID；增量式PID；整合独立PID；不完全微分PID；电子信息
摘 要：This paper introduces several PID control algorithms and their discretization expression.Compare the performance of positional PID algorithm with incremental PID algorithm,integration separate PID algorithm,incomplete differential PID algorithm and PID algorithm with dead zone.The experiment results show that different digital PID control algorithm could achieve different using.