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1. 发明授权

US07050863B2 Integrated model predictive control and optimization within a process control system 有权
标题翻译：过程控制系统中的集成模型预测控制和优化
公开(公告)号：US07050863B2
公开(公告)日：2006-05-23
申请号：US10627362
申请日：2003-07-25
申请人： Ashish Mehta , Peter Wojsznis , Wilhelm K. Wojsznis , Terrence L. Blevins , Dirk Thiele , Ron Ottenbacher , Mark Nixon
发明人： Ashish Mehta , Peter Wojsznis , Wilhelm K. Wojsznis , Terrence L. Blevins , Dirk Thiele , Ron Ottenbacher , Mark Nixon
IPC分类号： G05B13/02
CPC分类号： G05B11/32 , G05B13/042 , G05B13/048
摘要： A process control configuration system is provided for use in creating or viewing an integrated optimization and control block that implements an optimization routine and a multiple-input/multiple-output control routine. The configuration system may enable a user to display or configure the optimizer or the control routine. A storage routine may store information pertaining to a plurality of control and auxiliary variables and to a plurality of manipulated variables to be used by the optimization routine and/or the control routine. A display routine may present a display to a user regarding the information pertaining to the plurality of control and auxiliary variables and to the plurality of manipulated variables.
摘要翻译：提供了一种过程控制配置系统，用于创建或查看实现优化程序和多输入/多输出控制程序的集成优化和控制块。配置系统可以使用户能够显示或配置优化器或控制例程。存储程序可以存储关于多个控制和辅助变量的信息以及要由优化例程和/或控制程序使用的多个操作变量。显示例程可以向用户呈现关于与多个控制和辅助变量有关的信息以及多个操作变量的显示。

2. 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。

3. 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。

4. 发明授权

US06847954B1 Control-loop auto-tuner with nonlinear tuning rules estimators 有权
标题翻译：具有非线性调谐规则估计器的Controlloop自动调谐器
公开(公告)号：US06847954B1
公开(公告)日：2005-01-25
申请号：US09644399
申请日：2000-08-23
申请人： Wilhelm K. Wojsznis , Terrence L. Blevins , Dirk Thiele
发明人： Wilhelm K. Wojsznis , Terrence L. Blevins , Dirk Thiele
IPC分类号： G05B13/02 , G05G7/00 , G05E1/00 , G05E3/00 , G05F15/18
CPC分类号： G05B13/0285
摘要： A system for tuning a process control loop includes a tuner module for receiving an error signal representative of the difference between a set point and a process variable, the module generating a first process control signal for controlling the process. The system further includes a controller module for receiving the error signal and a parameter signal from a nonlinear module to generate a second process control signal for controlling the process, wherein the nonlinear module applies a nonlinear procedure to generate the parameter signal. The system further includes a switching means coupled to the tuner module and the controller module to select the appropriate process control signal for controlling the process. The system provided uses nonlinear techniques in the nonlinear module to approximate the desired controller tuning parameters. The nonlinear techniques include neural network tuning, fuzzy logic tuning and nonlinear functions, including sigmoid tuning. A system also provides that the nonlinear module use nonlinear techniques to approximate the desired process model parameters. According to an embodiment of the present invention, the nonlinear module includes a process model identification module and a controller tuning module that provides controller parameters and model identification parameters using neural networks, fuzzy logic and nonlinear functions, including sigmoid tuning.
摘要翻译：用于调整过程控制回路的系统包括调谐器模块，用于接收表示设定点和过程变量之间的差异的误差信号，该模块产生用于控制过程的第一过程控制信号。该系统还包括控制器模块，用于从非线性模块接收误差信号和参数信号，以生成用于控制过程的第二过程控制信号，其中非线性模块应用非线性过程来产生参数信号。该系统还包括耦合到调谐器模块和控制器模块的切换装置，以选择用于控制该过程的适当的过程控制信号。所提供的系统在非线性模块中使用非线性技术来近似所需的控制器调谐参数。非线性技术包括神经网络调谐，模糊逻辑调谐和非线性函数，包括S形调谐。系统还提供非线性模块使用非线性技术近似所需的过程模型参数。根据本发明的实施例，非线性模块包括过程模型识别模块和控制器调谐模块，其使用神经网络，模糊逻辑和非线性函数提供控制器参数和模型识别参数，包括S形调谐。

5. 发明申请

US20120083917A1 PREDICTED FAULT ANALYSIS 有权
标题翻译：预测故障分析
公开(公告)号：US20120083917A1
公开(公告)日：2012-04-05
申请号：US13279881
申请日：2011-10-24
申请人： Ling Zhou , Paul K. Daly , Robert B. Havekost , Terrence L. Blevins , Wilhelm K. Wojsznis , Mark J. Nixon , Christopher J. Worek , Paul R. Muston
发明人： Ling Zhou , Paul K. Daly , Robert B. Havekost , Terrence L. Blevins , Wilhelm K. Wojsznis , Mark J. Nixon , Christopher J. Worek , Paul R. Muston
IPC分类号： G06G7/66
CPC分类号： G05B13/048 , G05B19/41875 , G05B23/0283 , G05B2219/32187 , G05B2219/32194 , Y02P90/22
摘要： Example methods, apparatuses and systems to correlate candidate factors to a predicted fault in a process control system are disclosed. Techniques may include obtaining a value associated with a particular factor corresponding to a process, and predicting a fault based on the value. A set of candidate factors corresponding to the predicted fault may be determined, and a correlation between the predicted fault and at least one factor from the set may be displayed. Different sections of the display may respectively correspond to the predicted fault and to the at least one factor, and the correlation may be indicated by time aligning the different sections. Modifications to one displayed section may result in automatic modification of other sections to maintain the correlation. A user may select one or more candidate factors to be displayed, and may indicate a particular point of a particular section to obtain additional details.
摘要翻译：公开了将候选因子与过程控制系统中的预测故障相关联的示例性方法，设备和系统。技术可以包括获得与对应于过程的特定因素相关联的值，以及基于该值来预测故障。可以确定对应于预测故障的一组候选因子，并且可以显示预测故障与来自该组的至少一个因子之间的相关性。显示器的不同部分可以分别对应于预测的故障和至少一个因素，并且可以通过对不同部分的时间对准来指示相关性。对一个显示部分的修改可能导致其他部分的自动修改以维持相关性。用户可以选择要显示的一个或多个候选因子，并且可以指示特定部分的特定点以获得附加细节。

6. 发明授权

US09983559B2 Updating and utilizing dynamic process simulation in an operating process environment 有权
公开(公告)号：US09983559B2
公开(公告)日：2018-05-29
申请号：US11537975
申请日：2006-10-02
申请人： Terrence L. Blevins , Wilhelm K. Wojsznis , Mark J. Nixon
发明人： Terrence L. Blevins , Wilhelm K. Wojsznis , Mark J. Nixon
IPC分类号： G06G7/48 , G05B19/042 , G05B17/02 , G06F17/50
CPC分类号： G05B19/0428 , G05B17/02 , G05B2219/23404 , G05B2219/23445 , G06F17/5009
摘要： A simulation system that includes interconnected simulation blocks which use process models to perform simulation activities for a process plant is integrated into a process control environment for the process plant in a manner that makes the simulation system easy to use and easily updated for on-line process simulation. The disclosed simulation system enables future predicted values as well as the current predicted values of process parameters produced by the simulation system to be made available for performance evaluation as well as to guide plant operations. Additionally, the simulation system is connected to the operating process plant to receive various on-line process plant measurements, and uses these measurements to automatically update the process models used in the simulation system, to thereby keep the simulation system coordinated with the actual operating conditions of the process plant.

7. 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。

8. 发明授权

US08055358B2 Multi-objective predictive process optimization with concurrent process simulation 有权
标题翻译：多目标预测过程优化与并发过程仿真
公开(公告)号：US08055358B2
公开(公告)日：2011-11-08
申请号：US11567107
申请日：2006-12-05
申请人： Terrence L. Blevins , Wilhelm K. Wojsznis , Mark J. Nixon , Peter Wojsznis
发明人： Terrence L. Blevins , Wilhelm K. Wojsznis , Mark J. Nixon , Peter Wojsznis
IPC分类号： G05B13/02
CPC分类号： G05B17/02 , G05B13/022 , G05B13/048
摘要： A system and method for controlling a process includes simulating the process and producing a simulated output of the process, developing a set of target values based on measured inputs from the process and based on the simulated output from the process simulator, and producing multiple control outputs configured to control the process based on the set of target values during each operational cycle of the process control system. The simulated outputs include one or more predicted future values up to the steady state of the process.
摘要翻译：用于控制过程的系统和方法包括模拟过程并产生过程的模拟输出，基于来自过程的测量输入并基于来自过程模拟器的模拟输出开发一组目标值，并产生多个控制输出被配置为在过程控制系统的每个操作循环期间基于目标值集合来控制过程。模拟输出包括直到该过程稳定状态的一个或多个预测的未来值。

9. 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。

10. 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。

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