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    • 2. 发明授权
    • Process control system and power plant process control system
    • 过程控制系统和发电厂过程控制系统
    • US5305230A
    • 1994-04-19
    • US615868
    • 1990-11-20
    • Hiroshi MatsumotoMakoto ShimodaMasahide NomuraTadayoshi SaitoHiroshi YokoyamaAkira KajiHisanori MiyagakiSeiitsu NigawaraHiroshi Hanaoka
    • Hiroshi MatsumotoMakoto ShimodaMasahide NomuraTadayoshi SaitoHiroshi YokoyamaAkira KajiHisanori MiyagakiSeiitsu NigawaraHiroshi Hanaoka
    • F01K13/02G05B13/02G06F15/46
    • G05B13/0285Y10S706/906
    • 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.
    • 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。
    • 4. 发明授权
    • Process control method and system with employment of fuzzy inference
    • 使用模糊推理的过程控制方法和系统
    • US5410470A
    • 1995-04-25
    • US57997
    • 1993-05-05
    • Hiromasa YamaokaMitsuaki KobayashiYasuhiro TennichiTadayoshi Saito
    • Hiromasa YamaokaMitsuaki KobayashiYasuhiro TennichiTadayoshi Saito
    • G05B13/02G05B13/04G05D9/12G06F15/46
    • G05B13/0275Y10S706/90
    • 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.
    • 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。
    • 5. 发明授权
    • Self-tuning controller apparatus and process control system
    • 自调整控制器设备和过程控制系统
    • US5153807A
    • 1992-10-06
    • US714344
    • 1991-06-12
    • Tadayoshi SaitoSusumu TakahashiKouji TachibanaJunzo KawakamiNobuyuki Yokokawa
    • Tadayoshi SaitoSusumu TakahashiKouji TachibanaJunzo KawakamiNobuyuki Yokokawa
    • G05B13/02
    • G05B13/0275G05B13/024Y10S706/90
    • 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.
    • 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。