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    Process control system and power plant process control system
    1.
    发明授权
    Process control system and power plant process control system 失效
    过程控制系统和发电厂过程控制系统

    公开(公告)号：US5305230A

    公开(公告)日：1994-04-19

    申请号：US615868

    申请日：1990-11-20

    申请人： Hiroshi Matsumoto ,  Makoto Shimoda ,  Masahide Nomura ,  Tadayoshi Saito ,  Hiroshi Yokoyama ,  Akira Kaji ,  Hisanori Miyagaki ,  Seiitsu Nigawara ,  Hiroshi Hanaoka

    发明人： Hiroshi Matsumoto ,  Makoto Shimoda ,  Masahide Nomura ,  Tadayoshi Saito ,  Hiroshi Yokoyama ,  Akira Kaji ,  Hisanori Miyagaki ,  Seiitsu Nigawara ,  Hiroshi Hanaoka

    IPC分类号： F01K13/02 ,  G05B13/02 ,  G06F15/46

    CPC分类号： G05B13/0285 ,  Y10S706/906

    摘要： A process control system controls a large scale plant such as thermal power plant. This process control system includes a target setting unit for setting an operation target, a control unit for receiving a signal indicating the operation target and for outputting a controlled variable to operate the process, an evaluation unit for quantitatively evaluating operation characteristics corresponding to the operation target of the process operated on the basis of a signal indicating the controlled variable supplied from the control unit, a modification unit for extracting an optimum operation process qualitatively squaring or conforming with the evaluated value derived by the evaluation unit out of a modification rule predetermining operation unit in qualitative relation between the operation characteristics and the operation target of the process and for determining the modification rate of the control unit, a storage unit having a model of a neural network for storing a relation between the operation target and the modification rate derived by the modification unit as a connection state within a circuit, and a learning unit for making the model of the neural network learn the relation between the operation target and the modification rate.

    摘要翻译： 过程控制系统控制大型工厂如火力发电厂。 该过程控制系统包括用于设置操作对象的目标设定单元，接收指示操作对象的信号并输出​​控制变量来进行操作的控制单元，对与操作对象对应的操作特性进行定量评价的评价单元 基于从控制单元提供的控制变量的信号操作的处理;修改单元，用于从修改规则预定操作单元中提取定性平方或符合由评估单元导出的评估值的最佳操作处理 在所述操作特性与所述处理的操作对象之间的定性关系中，以及用于确定所述控制单元的修改率的存储单元，具有神经网络模型的存储单元，用于存储所述操作对象与由所述操作对象导出的修改率之间的关系 修改单位为a 电路内的连接状态，以及用于使神经网络的模型学习操作对象与修改率之间的关系的学习单元。

    Method and apparatus of automatically setting PID constants
    5.
    发明授权
    Method and apparatus of automatically setting PID constants 失效
    自动设定PID常数的方法和装置

    公开(公告)号：US5043862A

    公开(公告)日：1991-08-27

    申请号：US333978

    申请日：1989-04-06

    申请人： Susumu Takahashi ,  Kouji Tachibana ,  Tadayoshi Saito

    发明人： Susumu Takahashi ,  Kouji Tachibana ,  Tadayoshi Saito

    IPC分类号： G05B13/00 ,  G05B13/02

    CPC分类号： G05B13/024 ,  G05B13/0275 ,  Y10S706/90

    摘要： PID control method and PID controller for determining, from a control response from a process, characteristic values representative of controllability and automatically deriving and setting PID constants from the determined characteristic values. The error between a set point and a controlled value is decided as to whether to be due to a change in set point or due to a disturbance, and PID constants are set on the basis of results of decision.

    摘要翻译： PID控制方法和PID控制器，用于根据来自过程的控制响应确定代表可控性的特征值，并根据确定的特征值自动导出和设置PID常数。 决定设定点和受控值之间的误差是由于设定点的变化还是由于干扰引起的，并且根据判定结果设定PID常数。

    System and method for adaptive control of process
    6.
    发明授权
    System and method for adaptive control of process 失效
    过程自适应控制的系统和方法

    公开(公告)号：US4319320A

    公开(公告)日：1982-03-09

    申请号：US41646

    申请日：1979-05-23

    申请人： Yoshio Sato ,  Nobuo Kurihara ,  Masahide Nomura ,  Shigeyoshi Kawano ,  Tadayoshi Saito

    发明人： Yoshio Sato ,  Nobuo Kurihara ,  Masahide Nomura ,  Shigeyoshi Kawano ,  Tadayoshi Saito

    IPC分类号： F22B35/00 ,  F01K13/02 ,  F23N1/10 ,  G05B11/32 ,  G05B13/00 ,  G05B13/02 ,  G05B13/04

    CPC分类号： F01K13/02 ,  F23N1/10 ,  G05B13/0205 ,  G05B13/041

    摘要： A system and method for the adaptive control of a process in which a feed forward control signal corresponding to a process demand is calculated according to a predetermined algebraic function, while a feedback correction signal is calculated on the basis of an error of a process feedback signal indicative of an error of a controlled variable from a predetermined setting, and the controlled variable of the process is controlled on the basis of the sum of these two signals. The adaptive control is such that, when a set point of the function deviates from the actual process demand, a value corresponding to the error appears in the feedback correction signal, and this value is used for automatically modifying the function itself to ensure the adaptive control of the process. A determination is made whether or not the process is in the steady state and when steady state operation is determined, the function of the feed forward control signal is modified.

    摘要翻译： 一种用于自适应控制的系统和方法，其中根据预定的代数函数计算与处理要求对应的前馈控制信号，同时基于过程反馈信号的误差来计算反馈校正信号 指示来自预定设置的受控变量的误差，并且基于这两个信号的总和来控制处理的控制变量。 自适应控制使得当功能的设定点偏离实际过程需求时，反馈校正信号中出现与错误对应的值，该值用于自动修改功能本身以确保自适应控制 的过程。 确定过程是否处于稳定状态，并且当确定稳态操作时，前馈控制信号的功能被修改。

    Process control method and system with employment of fuzzy inference
    8.
    发明授权
    Process control method and system with employment of fuzzy inference 失效
    使用模糊推理的过程控制方法和系统

    公开(公告)号：US5410470A

    公开(公告)日：1995-04-25

    申请号：US57997

    申请日：1993-05-05

    申请人： Hiromasa Yamaoka ,  Mitsuaki Kobayashi ,  Yasuhiro Tennichi ,  Tadayoshi Saito

    发明人： Hiromasa Yamaoka ,  Mitsuaki Kobayashi ,  Yasuhiro Tennichi ,  Tadayoshi Saito

    IPC分类号： G05B13/02 ,  G05B13/04 ,  G05D9/12 ,  G06F15/46

    CPC分类号： G05B13/0275 ,  Y10S706/90

    摘要： A process control method and a process control apparatus using a fuzzy control with reducing rules and membership functions. The process control apparatus for determining a manipulating variable of a controlled object, includes an input/output unit for inputting a present value of a controlled variable and for outputting the determined manipulating variable, a predicting unit having a simulator of a controlled object, for calculating a control variable after a predetermined time has passed, assuming now that a present value of the manipulating variable is continued, and a fuzzy controlling unit for inferring a manipulating variable at a present time by inputting a deviation value between a preset set-point value and a predicted value. The simulator simulates the controlled object as dead time and a first order delay. Since only the predicted value of the controlled variable is employed as the input of the fuzzy control, fuzzy inference can be simplified and noise resistance can be improved.

    摘要翻译： 一种使用具有减少规则和隶属函数的模糊控制的过程控制方法和过程控制装置。 用于确定受控对象的操作变量的过程控制装置包括输入/​​输出单元，用于输入受控变量的当前值并输出所确定的操作变量，具有受控对象的模拟器的预测单元，用于计算 假定现在操作变量的当前值继续在经过预定时间之后的控制变量，以及模糊控制单元，用于通过在预设的设定点值和 预测值。 模拟器将受控对象模拟为死区时间和一阶延迟。 由于仅采用控制变量的预测值作为模糊控制的输入，因此可以简化模糊推理，提高噪声抵抗。

    Self-tuning controller apparatus and process control system
    9.
    发明授权
    Self-tuning controller apparatus and process control system 失效
    自调整控制器设备和过程控制系统

    公开(公告)号：US5153807A

    公开(公告)日：1992-10-06

    申请号：US714344

    申请日：1991-06-12

    申请人： Tadayoshi Saito ,  Susumu Takahashi ,  Kouji Tachibana ,  Junzo Kawakami ,  Nobuyuki Yokokawa

    发明人： Tadayoshi Saito ,  Susumu Takahashi ,  Kouji Tachibana ,  Junzo Kawakami ,  Nobuyuki Yokokawa

    IPC分类号： G05B13/02

    CPC分类号： G05B13/0275 ,  G05B13/024 ,  Y10S706/90

    摘要： A self-tuning controller apparatus which comprises: a control response pattern recognition portion for receiving a set-point and a controlled variable of a process and for obtaining three performance indexes from a controlled variable response pattern generated in response to a change in the set-point or a disturbance; a control parameter correction portion for qualitatively evaluating the three performance indexes and for inferring a correction value of a PID control parameter on the basis of the result of evaluation; and a control performance dissatisfaction degree evaluation portion for evaluating the inferred correction value of the PID control parameter in accordance with the dissatisfaction degrees of the two performance indexes for the respective target specifications of the two of the three performance indexes. The control performance dissatisfaction degree evaluation portion acts to make the PID control parameter converge stably. In a process control system including a plurality of vertically distributed control elements each capable of self-tuning its control parameter, the control performance dissatisfaction degree evaluation portion contributes to autonomous functioning of each of the control elements.

    摘要翻译： 一种自调整控制器装置，包括：控制响应模式识别部分，用于接收过程的设定点和受控变量，并且从响应于所述设定点的变化产生的受控变量响应模式获得三个性能指标， 点或扰动; 控制参数校正部分，用于基于评估结果定性评估三个性能指标并推断PID控制参数的校正值; 以及控制性能不满足度评价部，其根据所述三个性能指标中的两个的各个目标规格的两个性能指标的不满足度来评价PID控制参数的推定校正值。 控制性能不满意度评估部分使PID控制参数稳定收敛。 在包括能够自调整其控制参数的多个垂直分布的控制元件的过程控制系统中，控制性能不满意度评估部分有助于每个控制元件的自主功能。