公开(公告)号：US07206646B2

公开(公告)日：2007-04-17

申请号：US09953811

申请日：2001-09-17

申请人： Mark J. Nixon ,  Marion A. Keyes, IV ,  Trevor D. Schleiss ,  John A. Gudaz ,  Terrence L. Blevins

发明人： Mark J. Nixon ,  Marion A. Keyes, IV ,  Trevor D. Schleiss ,  John A. Gudaz ,  Terrence L. Blevins

IPC分类号： G06F15/00 ,  G06F11/30

CPC分类号： C10G11/187 ,  G05B23/0254 ,  G05B23/0272

摘要： A process control system uses a data collection and distribution system and an asset utilization suite to collect data or information pertaining to the assets of a process plant from various sources or functional areas of the plant including, for example, the process control functional areas, the maintenance functional areas and the process performance monitoring functional areas. This data and information is manipulated in a coordinated manner by the data collection and distribution system and is redistributed to other applications where this it is used to perform overall better or more optimal control, maintenance and business activities. Information or data may be collected by maintenance functions pertaining to the health, variability, performance or utilization of a device, loop, unit, area, etc. and this information may then be sent to and displayed to a process operator or maintenance person to inform that person of a current or future problem. A user interface is provided that enables users to access and manipulate the expert engine to optimize plant operation or cause optimization of plant operation, to get information about the operation of the plant, etc. Furthermore, applications, such as work order generation applications may automatically generate work orders, parts or supplies orders, etc. based on events occurring within the plant.

摘要翻译： 过程控制系统使用数据收集和分配系统以及资产利用套件从工厂的各种来源或功能区域收集与过程工厂的资产有关的数据或信息，包括例如过程控制功能区， 维护功能区和过程性能监控功能区。 该数据和信息由数据收集和分发系统以协调的方式操纵，并被重新分配给其它应用程序，其中它用于执行整体更好或更优化的控制，维护和业务活动。 可以通过与设备，环路，单元，区域等的健康，可变性，性能或利用相关的维护功能来收集信息或数据，然后该信息可以被发送到过程操作者或维护人员并且显示给通知 那个人当前还是将来的问题。 提供了一种用户界面，使用户能够访问和操纵专家引擎，优化工厂操作或引起工厂操作优化，获取有关工厂运行的信息等。此外，诸如工单生成应用程序等应用程序可能会自动 根据工厂内发生的事件生成工单，零件或用品订单等。

公开(公告)号：US06970750B2

公开(公告)日：2005-11-29

申请号：US10126768

申请日：2002-04-19

申请人： Wilhelm K. Wojsznis ,  Terrence L. Blevins ,  Dirk Thiele ,  John A. Gudaz

发明人： Wilhelm K. Wojsznis ,  Terrence L. Blevins ,  Dirk Thiele ,  John A. Gudaz

IPC分类号： G05B13/02

CPC分类号： G05B13/024

摘要： An adaptive process controller drives a process variable to be substantially equivalent to a set point and adapts the controller gain, the controller reset, and/or the controller rate, based on model free adaptation. The adaptive controller combines a controller gain computed from an oscillation index with a controller gain computed from a steady state estimate and that adapts the controller reset/rate by forcing the ratio of two of the controller proportional, integral or derivative terms to be equal to a predetermined value.

摘要翻译： 自适应过程控制器将过程变量驱动为基本上等同于设定点，并且基于模型自适应来调整控制器增益，控制器复位和/或控制器速率。 自适应控制器将从振荡指数计算的控制器增益与从稳态估计计算的控制器增益相结合，并通过强制控制器比例，积分或导数项中的两个的比例等于一个来适应控制器复位/速率 预定值。

公开(公告)号：US06510353B1

公开(公告)日：2003-01-21

申请号：US09434776

申请日：1999-11-04

申请人： John A. Gudaz ,  Yan Zhang ,  Wilhelm K. Wojsznis

发明人： John A. Gudaz ,  Yan Zhang ,  Wilhelm K. Wojsznis

IPC分类号： G05B1302

CPC分类号： G05B19/0428 ,  G05B2219/25428 ,  G05B2219/31121 ,  G05B2219/31135 ,  G05B2219/33324

摘要： A simulation procedure simulates the response of a process control loop having a controller tuned according to a set of tuning parameters to illustrate, for example, the overshoot, oscillation, response time, etc. of the controller as tuned. As part of the simulation procedure, a robustness map, such as a plot illustrating phase margin versus gain margin or other robustness qualities, is created and the robustness of the simulated control loop may be plotted as a point on the robustness map. During the creation of the robustness map, different sets of tuning parameters for a region in which the process control loop is stable are determined and stored and the corresponding robustness qualities of the loop having a controller tuned according to these tuning parameters are also determined and stored. The robustness map is then displayed to a user showing the stable region. Thereafter, a user may select any point within the stable region on the robustness map and, upon doing so, a set of tuning parameters that will produce a control loop with the selected robustness characteristics will then be determined from the previously calculated sets of tuning parameters and robustness qualities. The simulation routine may then simulate the control loop using these new tuning parameters to enable a user to view the performance characteristics of the resulting control loop.

摘要翻译： 仿真程序模拟具有根据一组调谐参数调谐的控制器的过程控制回路的响应，以示出例如调节的控制器的过冲，振荡，响应时间等。 作为仿真过程的一部分，创建鲁棒性图，例如说明相位裕度对增益裕度或其他鲁棒性质量的图，并且将仿真控制回路的鲁棒性绘制为鲁棒性图上的点。 在创建鲁棒性图时，确定并存储其中过程控制环路稳定的区域的不同组的调谐参数，并且还确定并存储具有根据这些调谐参数调谐的控制器的回路的相应鲁棒性质量 。 然后将鲁棒性映射显示给显示稳定区域的用户。 此后，用户可以在鲁棒性映射上选择稳定区域内的任何点，并且在这样做时，将根据先前计算的调谐参数组确定将产生具有选定的鲁棒特性的控制回路的一组调谐参数 和鲁棒性质量。 然后，仿真程序可以使用这些新的调谐参数来模拟控制回路，以使用户能够查看所得到的控制回路的性能特征。