Traitement en cours

Veuillez attendre...

Paramétrages

Paramétrages

Aller à Demande

1. CN1675599 - Dynamic on-line optimization of production processes

Office
Chine
Numéro de la demande 03818918.6
Date de la demande 12.06.2003
Numéro de publication 1675599
Date de publication 28.09.2005
Type de publication A
CIB
D21G 9/00
DTEXTILES; PAPIER
21FABRICATION DU PAPIER; PRODUCTION DE LA CELLULOSE
GCALANDRES; ACCESSOIRES POUR MACHINES À FABRIQUER LE PAPIER
9Autres accessoires pour machines à fabriquer le papier
G05B 13/04
GPHYSIQUE
05COMMANDE; RÉGULATION
BSYSTÈMES DE COMMANDE OU DE RÉGULATION EN GÉNÉRAL; ÉLÉMENTS FONCTIONNELS DE TELS SYSTÈMES; DISPOSITIFS DE CONTRÔLE OU DE TEST DE TELS SYSTÈMES OU ÉLÉMENTS
13Systèmes de commande adaptatifs, c. à d. systèmes se réglant eux-mêmes automatiquement pour obtenir un rendement optimal suivant un critère prédéterminé
02électriques
04impliquant l'usage de modèles ou de simulateurs
CPC
D21G 9/0018
DTEXTILES; PAPER
21PAPER-MAKING; PRODUCTION OF CELLULOSE
GCALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
9Other accessories for paper-making machines
0009Paper-making control systems
0018controlling the stock preparation
G05B 13/048
GPHYSICS
05CONTROLLING; REGULATING
BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
13Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion
02electric
04involving the use of models or simulators
048using a predictor
Déposants ABB AB
ABB股份有限公司
Inventeurs Sahlin Per-Olof
U·佩松
Persson Ulf
T·林德贝里
Lindberg Tomas
L·莱顿
Ledung Lars
P·-O·萨林
Kaellen Lennart
L·凯伦
Mandataires yang kai zhang zhicheng
中国专利代理(香港)有限公司
中国专利代理(香港)有限公司
Données relatives à la priorité 0201812 12.06.2002 SE
Titre
(EN) Dynamic on-line optimization of production processes
(ZH) 生产过程的动态在线优化
Abrégé
(EN) A process is modeled by a dynamic model, handling time dependent relations between manipulated variables of different process sections (10A-D) and measured process output variables. Suggested input trajectories for manipulated variables for a subsequent time period are obtained by optimizing an objective function over a prediction time period, under constraints imposed by the dynamic process model and/or preferably a production plan for the same period. The objective function comprises relations involving predictions of controlled process output variables as a function of time using the process model, based on the present measurements, preferably by a state estimation procedure. By the use of a prediction horizon, also planned future operational changes can be prepared for, reducing any induced fluctuations. In pulp and paper processes, process output variables associated with chemical additives can be used, adapting the optimization to handle chemical additives aspects.
(ZH)

通过处理不同过程段(10A-D)的操作变量与测得的过程输出变量之间的时间相关关系的动态模型对工艺过程建模。在动态过程模型和/或最好还有同一时间间隔内的生产计划所施加的约束下,通过优化预测时间间隔内的目标函数,而获得后续时间间隔内操作变量的建议输入轨迹。该目标函数包含一些关系,这些关系涉及利用过程模型,根据当前的测量值,最好通过状态估计程序,预测随时间变化的受控过程输出变量。利用预测时域,还可以准备计划的未来运行变化,从而减小诱发的任何波动。在纸浆和纸张生产过程中,可以使用与化学添加剂相关联的过程输出变量,从而调整优化以处理化学添加剂方面。