基于单纯形法的重介密度控制系统PID自寻最优控制的设计  

The simplex-based method for the heavy medium density control system PID to effect self-searching optimal control

作　　者：杨树朝 

机构地区：[1]中煤科工集团唐山研究院有限公司,河北唐山063012 [2]河北省煤炭洗选工程技术研究中心,河北唐山063012

出　　处：《选煤技术》2016年第1期81-83,共3页Coal Preparation Technology

摘　　要：为了简化重介密度控制系统PID控制器的参数整定工作,提高系统控制效果,结合悬浮液密度控制系统的需要,探索基于单纯形法的重介密度控制系统PID自寻最优控制的可行性。就控制系统性能来分析,基于单纯形法的自寻最优数字控制器,不但可以实现信号的变换,而且能够完成性能指标的计算和数字PID控制器参数的自动寻优,有助于系统性能保持在最优状态。With an aim to simplifying the process for the tuning up of the parameters of the PID controller of the dense medium density control system for better control performance of the control system,an investigation is made into the feasibility for PID system to effect self- searching optimal control using the simplex method,so as to cater to needs for the control of the density of heavy medium suspension. As evidenced by analysis of the performance of the control system,the use of the digital controller so designed can realize not only signal conversion but also calculation of performance indexes and automatic optimization of parameters of PID controller.

关 键 词：重介密度 PID控制器 参数整定 单纯形法 自寻最优 目标函数 

分 类 号：TD948.9[矿业工程—选矿]