专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

11. 发明授权

US06721609B1 Integrated optimal model predictive control in a process control system 有权
标题翻译：过程控制系统中的综合最佳模型预测控制
公开(公告)号：US06721609B1
公开(公告)日：2004-04-13
申请号：US09593327
申请日：2000-06-14
申请人： Wilhelm K. Wojsznis , Terrence L. Blevins , Richard C. Seeman , Mark J. Nixon
发明人： Wilhelm K. Wojsznis , Terrence L. Blevins , Richard C. Seeman , Mark J. Nixon
IPC分类号： G05B1302
CPC分类号： G05B13/0275 , G05B13/048
摘要： A model predictive controller having a set of inputs adapted to receive process output signals and further having a set of outputs adapted to supply process input signals to process control devices is configured to perform integrated optimal model predictive control. The controller provides integrated optimal control using a feedback path that couples a selected output to an input having a setpoint that is equal to the constraint limit of the selected output. The controller maintains the selected output at its constraint limit until one of the outputs, other than the selected output, is going to reach or exceed the associated constraint limit for that output. When the output is going to reach or exceed the associated constraint limit for that output, the controller relaxes the setpoint until the output is no longer going to reach or exceed the associated constraint limit for that output.
摘要翻译：具有适于接收处理输出信号并且还具有适于向处理控制装置提供过程输入信号的一组输出的一组输入的模型预测控制器被配置为执行集成的最佳模型预测控制。控制器使用将所选择的输出耦合到具有等于所选输出的约束极限的设定点的输入的反馈路径来提供集成的最佳控制。控制器将所选择的输出保持在其约束极限，直到除了所选输出之外的输出之一将达到或超过该输出的相关约束极限。当输出达到或超过该输出的相关约束限制时，控制器放松设定值，直到输出不再达到或超过该输出的相关约束极限。

12. 发明授权

US08509926B2 Self-diagnostic process control loop for a process plant 有权
标题翻译：过程工厂的自诊断过程控制回路
公开(公告)号：US08509926B2
公开(公告)日：2013-08-13
申请号：US11565767
申请日：2006-12-01
申请人： Terrence L. Blevins , Wilhelm K. Wojsznis , Gregory K. McMillan , Peter Wojsznis
发明人： Terrence L. Blevins , Wilhelm K. Wojsznis , Gregory K. McMillan , Peter Wojsznis
IPC分类号： G05B11/01 , G05B13/02 , G05B19/42 , G06F11/30 , G06F11/00 , G21C17/00
CPC分类号： G05B23/0251
摘要： A method of diagnosing an adaptive process control loop includes measuring process control loop signal data, generating a plurality of process control loop parameters from the process loop signal data and evaluating a condition of the adaptive process control loop from one or more of the plurality of process control loop parameters. The process control loop data is generated as a result of a normal operation of one or more process control devices within the adaptive process control loop when the adaptive process control loop is connected on-line within a process control environment. A self-diagnostic process control loop includes a diagnostic tool adapted to receive a diagnostic index pertaining to a process control loop parameter for each component of the process control loop and for the complete process control loop. Each diagnostic index is generated from signal data by a corresponding index computation tool. The diagnostic tool is further adapted to evaluate a condition of the process control loop from one or more of the diagnostic indices.
摘要翻译：诊断自适应过程控制回路的方法包括测量过程控制环路信号数据，从过程回路信号数据生成多个过程控制回路参数，并从多个过程中的一个或多个处理自适应过程控制回路的状况控制回路参数。当自适应过程控制回路在过程控制环境中在线连接时，作为自适应过程控制回路内的一个或多个过程控制设备的正常操作的结果，生成过程控制回路数据。自诊断过程控制回路包括诊断工具，其适于接收与过程控制回路的每个部件和整个过程控制回路相关的过程控制回路参数的诊断指标。每个诊断索引通过相应的索引计算工具从信号数据生成。该诊断工具还适于从一个或多个诊断指标评估过程控制回路的状况。

13. 发明授权

US08706267B2 Process model identification in a process control system 有权
标题翻译：过程控制系统中的过程模型识别
公开(公告)号：US08706267B2
公开(公告)日：2014-04-22
申请号：US12260073
申请日：2008-10-28
申请人： John M. Caldwell , Terrence L. Blevins , Peter Wojsznis , Wilhelm K. Wojsznis
发明人： John M. Caldwell , Terrence L. Blevins , Peter Wojsznis , Wilhelm K. Wojsznis
IPC分类号： G05B13/02
CPC分类号： G05B13/04 , G05B13/048 , G05B23/0254 , G05B23/0272
摘要： A method of controlling a process control system having a plurality of control loops includes collecting operating condition data in connection with the operation of each control loop of the plurality of control loops, identifying a respective process model for each control loop of the plurality of control loops from the respective operating condition data collected for each control loop of the plurality of control loops and developing a process model history by storing data indicative of the multiple identified process models for each control loop of the plurality of control loops.
摘要翻译：控制具有多个控制回路的过程控制系统的方法包括：结合多个控制回路的每个控制回路的操作来收集操作条件数据，识别多个控制回路中每个控制回路的相应过程模型从针对多个控制回路的每个控制循环收集的相应操作条件数据，并通过存储指示多个控制回路中的每个控制回路的多个确定的过程模型的数据来开发过程模型历史。

14. 发明申请

US20090062932A1 Process Model Identification in a Process Control System 有权
标题翻译：过程控制系统中的过程模型识别
公开(公告)号：US20090062932A1
公开(公告)日：2009-03-05
申请号：US12260073
申请日：2008-10-28
申请人： John Caldwell , Terrence L. Blevins , Peter Wojsznis , Wilhelm K. Wojsznis
发明人： John Caldwell , Terrence L. Blevins , Peter Wojsznis , Wilhelm K. Wojsznis
IPC分类号： G05B17/00 , G06F15/16 , G06F17/30 , G06F15/00 , G06F7/06
CPC分类号： G05B13/04 , G05B13/048 , G05B23/0254 , G05B23/0272
摘要： Disclosed is a method of controlling and managing a process control system having a plurality of control loops. The method includes implementing a plurality of control routines to control operation of the plurality of control loops, respectively. The plurality of control routines may include at least one non-adaptive control routine. Operating condition data is then collected in connection with the operation of each control loop of the plurality of control loops, and a respective process model is identified for each control loop of the plurality of control loops from the respective operating condition data collected for each control loop of the plurality of control loops. In some embodiments, the identification of the respective process models may be automatic as a result of a detected process change or be on-demand as a result of an injected parameter change.
摘要翻译：公开了一种控制和管理具有多个控制回路的过程控制系统的方法。该方法包括实现多个控制例程以分别控制多个控制回路的操作。多个控制程序可以包括至少一个非自适应控制程序。然后结合多个控制回路的每个控制回路的操作来收集操作条件数据，并且从针对每个控制回路收集的各个操作条件数据中识别出多个控制回路中的每个控制回路的相应过程模型的多个控制回路。在一些实施例中，作为检测到的过程改变的结果，可以自动地识别各个过程模型，或者作为注入的参数改变的结果而是按需。

15. 发明授权

US07444191B2 Process model identification in a process control system 有权
标题翻译：过程控制系统中的过程模型识别
公开(公告)号：US07444191B2
公开(公告)日：2008-10-28
申请号：US11243862
申请日：2005-10-04
申请人： John Caldwell , Terrence L. Blevins , Peter Wojsznis , Wilhelm K. Wojsznis
发明人： John Caldwell , Terrence L. Blevins , Peter Wojsznis , Wilhelm K. Wojsznis
IPC分类号： G05B13/02
CPC分类号： G05B13/04 , G05B13/048 , G05B23/0254 , G05B23/0272
摘要： Disclosed is a method of controlling and managing a process control system having a plurality of control loops. The method includes implementing a plurality of control routines to control operation of the plurality of control loops, respectively. The plurality of control routines may include at least one non-adaptive control routine. Operating condition data is then collected in connection with the operation of each control loop of the plurality of control loops, and a respective process model is identified for each control loop of the plurality of control loops from the respective operating condition data collected for each control loop of the plurality of control loops. In some embodiments, the identification of the respective process models may be automatic as a result of a detected process change or be on-demand as a result of an injected parameter change.
摘要翻译：公开了一种控制和管理具有多个控制回路的过程控制系统的方法。该方法包括实现多个控制例程以分别控制多个控制回路的操作。多个控制程序可以包括至少一个非自适应控制程序。然后结合多个控制回路的每个控制回路的操作来收集操作条件数据，并且从针对每个控制回路收集的相应操作条件数据中识别多个控制回路中的每个控制回路的相应过程模型的多个控制回路。在一些实施例中，作为检测到的过程改变的结果，可以自动地识别各个过程模型，或者作为注入的参数改变的结果而被按需。

16. 发明授权

US06445963B1 Integrated advanced control blocks in process control systems 有权
标题翻译：过程控制系统中集成的先进控制块
公开(公告)号：US06445963B1
公开(公告)日：2002-09-03
申请号：US09412078
申请日：1999-10-04
申请人： Terrence L. Blevins , Wilhelm K. Wojsznis , Vasiliki Tzovla , Dirk Thiele
发明人： Terrence L. Blevins , Wilhelm K. Wojsznis , Vasiliki Tzovla , Dirk Thiele
IPC分类号： G05B1302
CPC分类号： G05B13/0285 , G05B11/32 , G05B13/048 , Y10S706/92
摘要： An advanced control block that implements multiple-input/multiple-output control, such as model predictive control, within a process control system is initiated by creating an initial control block having generic control logic and desired control inputs and control outputs communicatively connected to process outputs and process inputs within a process control routine. A waveform generator within the control block systematically upsets each of the process inputs via the control block outputs using excitation waveforms designed for use in developing a process model. At the same time, a data collection routine collects data indicating the response of each of the process outputs to the waveforms delivered at each of the process inputs. After sufficient data has been collected, a process modeling routine generates a process model from the collected data and a control logic parameter creation routine creates control logic parameters for the control logic from the process model. The control logic parameters and the process model are then downloaded to the control block to complete formation of the advanced control block. Thereafter, the advanced control block is used to provide advanced process control within the process control routine. Likewise, the process model is used to provide simulation of the process or to produce virtual process outputs.
摘要翻译：通过创建具有通用控制逻辑的初始控制块和通信地连接到过程输出的所需控制输入和控制输出来启动在过程控制系统内实现多输入/多输出控制（例如模型预测控制）的高级控制块并在过程控制程序中处理输入。控制块内的波形发生器通过使用设计用于开发过程模型的激励波形，经由控制块输出系统地扰乱每个过程输入。同时，数据采集程序将指示每个过程输出的响应的数据收集到在每个过程输入处传送的波形。在收集足够的数据之后，过程建模程序从收集的数据生成过程模型，并且控制逻辑参数创建例程从过程模型创建控制逻辑的控制逻辑参数。然后将控制逻辑参数和过程模型下载到控制块，以完成高级控制块的形成。此后，高级控制块用于在过程控制程序中提供先进的过程控制。同样，过程模型用于提供过程的仿真或产生虚拟过程输出。

17. 发明授权

US09182752B2 Method and system for multi-zone modeling to determine material properties in storage tanks 有权
标题翻译：用于多区域建模的方法和系统，用于确定储罐中的材料性质
公开(公告)号：US09182752B2
公开(公告)日：2015-11-10
申请号：US13103432
申请日：2011-05-09
申请人： Terrence L. Blevins , Wilhelm K. Wojsznis , Christopher J. Worek
发明人： Terrence L. Blevins , Wilhelm K. Wojsznis , Christopher J. Worek
IPC分类号： G05B17/02 , G05B13/04
CPC分类号： G05B17/02 , G05B13/048
摘要： In a batch process control system employing storage tanks without mixers, properties of the storage tank pump out feedstock may be modeled to more accurately control the quality of a process. This model may not require the measurement of input or pump out flow or assume perfect blending. Rather, the developed model may assume that feedstock input into a storage tank may remain layered with some mixing due to continuous convection, turbulence during loading, or other factors. The model may include a projection of the properties describing a storage tank layer of input material into the model. For each new load of storage tank input feedstock, model zones may be shifted and the zone from which the feedstock is drawn may be updated with the properties from the new load.
摘要翻译：在采用没有混合器的储罐的批量过程控制系统中，可以建模储罐泵出原料的特性以更准确地控制过程的质量。该型号可能不需要测量输入或泵出流量或假设完美混合。相反，开发的模型可以认为，由于连续对流，加载期间的湍流或其他因素，输入到储罐中的原料可能会保持分层。该模型可以包括将描述输入材料的储罐层的性质的投影放入模型中。对于储存罐输入原料的每个新载荷，模型区域可能会移动，并且可以从新载荷的属性更新绘制原料的区域。

18. 发明授权

US07272454B2 Multiple-input/multiple-output control blocks with non-linear predictive capabilities 有权
标题翻译：具有非线性预测能力的多输入/多输出控制块
公开(公告)号：US07272454B2
公开(公告)日：2007-09-18
申请号：US10454937
申请日：2003-06-05
申请人： Wilhelm K. Wojsznis , Terrence L. Blevins , Ashish Mehta
发明人： Wilhelm K. Wojsznis , Terrence L. Blevins , Ashish Mehta
IPC分类号： G05B13/02
CPC分类号： G05B13/027 , G05B13/048
摘要： A process controller that may be used to control a process having a set of process outputs effected by a set of process control input signals includes a multiple-input/multiple output controller that uses the process outputs to develop the set of process control input signals and a process model, which may be a non-linear process model, that receives the set of process control input signals to produce a prediction signal for one or more of the process outputs. The multiple-input/multiple-output control element includes another process model, which may be a standard linear process model, to develop a prediction vector for each of the process outputs and includes a correction unit that modifies the prediction vector for the one or more of the process outputs using the prediction signal for the one or more of the process outputs to thereby compensate for the non-linearities of the process.
摘要翻译：可以用于控制具有由一组过程控制输入信号影响的一组过程输出的过程的过程控制器包括多输入/多输出控制器，其使用过程输出来开发一组过程控制输入信号，以及可以是非线性过程模型的过程模型，其接收一组过程控制输入信号以产生一个或多个过程输出的预测信号。多输入/多输出控制元件包括可以是标准线性过程模型的另一过程模型，用于为每个过程输出开发预测向量，并且包括校正单元，其修改一个或多个的过程输出使用用于一个或多个过程输出的预测信号，从而补偿过程的非线性。

19. 发明授权

US07257523B1 Integrated distributed process control system functionality on a single computer 有权
标题翻译：在单台计算机上集成分布式过程控制系统功能
公开(公告)号：US07257523B1
公开(公告)日：2007-08-14
申请号：US09510053
申请日：2000-02-22
申请人： Mark Nixon , Terrence L. Blevins , Wilhelm K. Wojsznis
发明人： Mark Nixon , Terrence L. Blevins , Wilhelm K. Wojsznis
IPC分类号： G06F17/50
CPC分类号： G05B17/02
摘要： An apparatus is adapted to be used to create software and programming instructions for a distributed process control system having a user workstation remotely located from a distributed controller that controls one or more field devices using control modules. The apparatus includes a computer having a memory and a processing unit as well as a configuration application and a controller application stored on the computer memory to be executed on the processor. The configuration application is further capable of being executed on the user workstation of the distributed process control system to create the control modules for execution by the distributed controller while the controller application is adapted to be executed on the distributed controller to implement one of the control modules during operation of the distributed process control system. In this system, the configuration application, when run on the computer, creates a first control module capable of being used by the distributed controller within the distributed process control system and the controller application causes execution of the first control module within the computer to thereby simulate operation of the distributed process control system. The use of this system enables the simulation and testing of distributed process control system software and control modules without the use of the hardware, e.g., the distributed process controller and field devices, which will ultimately run that software.
摘要翻译：一种装置适于用于为分布式过程控制系统创建软件和编程指令，所述分布式过程控制系统具有远离位于使用控制模块控制一个或多个现场设备的分布式控制器的用户工作站。该装置包括具有存储器和处理单元以及存储在计算机存储器上以在处理器上执行的配置应用程序和控制器应用的计算机。配置应用还能够在分布式过程控制系统的用户工作站上执行以创建用于由分布式控制器执行的控制模块，同时控制器应用适于在分布式控制器上执行以实现控制模块之一在分布式过程控制系统的运行期间。在该系统中，配置应用程序在计算机上运行时，创建能够由分布式过程控制系统内的分布式控制器使用的第一控制模块，并且控制器应用程序导致在计算机内执行第一控制模块，从而模拟分布式过程控制系统的运行。使用该系统能够在不使用硬件的情况下对分布式过程控制系统软件和控制模块进行仿真和测试，例如最终将运行该软件的分布式过程控制器和现场设备。

20. 发明授权

US06970750B2 Model-free adaptation of a process controller 失效
标题翻译：过程控制器的无模型自适应
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。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式