摘要
数字控制技术在控制领域的应用日益广泛。自模拟比例积分PI控制器发展而来的数字PI控制器也形成了一种经典的数字控制结构,其数学模型可以从模拟PI控制器导出。从模拟PI控制器出发,推导了数字PI控制器的模型、传函及后向差分方程,给出了实现数字PI的流程图。以某逆变器为例,给出了数字PI 的仿真结果。
Digital control technology is applied extensively in control domain. Digital PI controller derived from analogue proportion integral （ PI ） controller is a classical digital control structure, whose maths model drives from analogne PI controller. In this paper, the model ,transfer function and backward differential equation of digital PI controller are deducedon on the basis of analogue PI. The flow chart and the simulation results of an inverter are given.
出处
《黄石理工学院学报》
2005年第6期7-9,共3页
Journal of Huangshi Institute of Technology
关键词
比例积分控制器
数字控制
后向差分方程
流程图
仿真
PI controller
digital control
backward differential equation
flow chart
simulation
