定限值控制问题与控制策略  

Control of Constant-limiting Value and Its Control Strategy

作　　者：李玉惠[1] 佟云峰[2] 张天贵 

机构地区：[1]昆明理工大学,云南昆明650093 [2]昆明冶金高等专科学校,云南昆明650033 [3]云南天然气化工厂,云南昭通657800

出　　处：《有色金属设计》2002年第1期66-70,共5页Nonferrous Metals Design

摘　　要：根据合成氨实际生产对转化温度的要求 ,提出了定限值控制问题。初步讨论了采用神经网络控制器 ,来实现定值控制向定限值控制逼近的方法。为提高系统响应的快速性 ,在神经网络内部采用反偏差阈值函数 。The problem on control of constant-limiting value has been raised in accordance with the requirements of actual synthetic ammonia production to the converting temperature.Thereof,neuron network controller has been adopted after the preliminary study in order for finding out a suitable way to make constant value control approach to constant-limiting value control.For the purpose of increasing the system's response speed,anti-deviation value function has been used in internal neuron network,while duel-mode neuron network control structure has been used in external network.

关 键 词：定限值控制 反偏差阈值函数 双模式结构 

分 类 号：TP13[自动化与计算机技术—控制理论与控制工程]