基于模糊PID控制策略的精密光学斩波器改进与仿真  

Improvement and Simulation of Precision Optical Chopper Based on Fuzzy PID Control Strategy

作　　者：翟保尊 Zhai Baozun(Yellow River Conservancy Technical Institute,Kaifeng 475004,Henan,China)

机构地区：[1]黄河水利职业技术学院,河南开封475004

出　　处：《黄河水利职业技术学院学报》2020年第4期50-54,共5页Journal of Yellow River Conservancy Technical Institute

摘　　要：精密光学斩波器通过对光谱测量中的入射光进行斩波调制,实现对微弱光信号的检测。斩波控制器的斩波稳定性、抗干扰性和精确性是影响检测效果的关键因素,而现有的光学斩波控制器主要采用PID闭环控制策略,抗干扰性和精确性有限。采用模糊PID控制策略对精密斩波器控制系统进行了改进,将模糊控制与PID控制结合起来,实现斩波器的高精度控制。Simulink仿真结果表明,采用模糊PID控制策略改进后的精密光学斩波器比传统光学斩波器的调速稳定性和快速性更好。The precision optical chopper is used to chop and modulate incident light at the spectrum measurement,so as to realize the detection of weak optical signal.The chopping stability,anti-interference and accuracy of chopper controller are the key factors that can affect the detection effect.The existing optical chopper controller mainly adopts closed-loop control strategy of PID,leading to the anti-interference and accuracy are limited.In order to realize the high precision control,the fuzzy PID control strategy is used to improve the precision optical chopper control system,and the fuzzy control is combined with PID control.The Simulink simulation results show that,comparing with the traditional optical chopper,the precision optical chopper with fuzzy PID control strategy has better speed regulation performance and speed ability.

关 键 词：精密光学斩波器 模糊PID控制 调速性能 SIMULINK仿真 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]