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    • 1. 发明专利
    • Plant monitoring control device and plant monitoring control method
    • 植物监测控制装置和植物监测控制方法
    • JP2013161216A
    • 2013-08-19
    • JP2012021958
    • 2012-02-03
    • Hitachi Ltd株式会社日立製作所
    • YAMADA TAKAHIROMARUYAMA YOSHIOAKATSU TORU
    • G05B9/03
    • G05B23/0259G05B9/03G05B23/0213G05B23/0286G05B2219/13G05B2219/24175G05B2219/24182
    • PROBLEM TO BE SOLVED: To provide a plant monitoring control system with improved reliability and fault tolerance of entire plant.SOLUTION: A monitoring device includes: an abnormality detection unit that can detect abnormal state of the monitoring device; a second communication unit for receiving state information through a second communication network; a plant information generation unit for generating plant information indicating information on all plant facilities according to multiple state information; and a first communication unit for sending the plant information to a maintenance device through a first communication network. When the abnormality detection unit of the monitoring device detects an abnormal state a replacement request is sent to another monitoring device, and the operation of the monitoring device in which the abnormality detection unit is included is stopped when a positive response to the replacement request is returned, and state information is forwarded to the maintenance device by controlling the first communication unit and the second communication unit when a negative response or no response to the replace request is returned.
    • 要解决的问题:提供具有改善的整个工厂的可靠性和容错性的工厂监控控制系统。解决方案:一种监视装置,包括:异常检测单元,其可以检测监视装置的异常状态; 第二通信单元,用于通过第二通信网络接收状态信息; 工厂信息生成单元,用于根据多个状态信息生成指示关于所有工厂设施的信息的工厂信息; 以及第一通信单元,用于通过第一通信网络将设备信息发送到维护设备。 当监视装置的异常检测单元检测到异常状态时,替换请求被发送到另一监视装置,并且当返回到替换请求的肯定响应被返回时,停止包括异常检测单元的监视装置的操作 并且当返回对替换请求的否定响应或不响应时,通过控制第一通信单元和第二通信单元将状态信息转发到维护设备。
    • 3. 发明专利
    • Apparatus for controlling coal fired power plant
    • 控制燃煤发电厂的设备
    • JP2013224799A
    • 2013-10-31
    • JP2012097308
    • 2012-04-23
    • Hitachi Ltd株式会社日立製作所
    • EGUCHI TORUKUSUMI HISAHIROSEKIAI TAKAOFUKAI MASAYUKIKITAGAWA KATSUHIDEAKATSU TORU
    • F23K3/02F22B35/00F23N5/00
    • PROBLEM TO BE SOLVED: To provide a control apparatus capable of determining mill operation conditions for maximizing an operational efficiency of a plant, in a coal fired power plant.SOLUTION: A control apparatus 200 which controls a coal fired power plant 100 by obtaining a measurement signal 1 includes: a control signal generating unit 500 for generating a control signal 14 of the plant 100 using the information stored in a calculation result database 250 and a control logic database 260; a measurement signal database 210 for storing the data of the measurement signal 1; a coal information control database 220 for storing coal information 5 including at least a moisture value, a fuel ratio and a Hardgrobe grindability index (HGI) of coal; a mill property information database 230 for storing mill property information 7; a mill property evaluating unit 300 for calculating mill properties; a mill operation calculating unit 400 for calculating a mill operation condition 11; the calculation result database 250 for storing the mill operation condition 11; and the control logic database 260 for storing a control logic of the plant 100.
    • 要解决的问题:提供一种控制装置,其能够确定在燃煤发电厂中最大化工厂的运行效率的轧机运行条件。解决方案:控制装置200,其通过获得测量值来控制燃煤发电厂100 信号1包括:控制信号生成单元500,用于使用存储在计算结果数据库250和控制逻辑数据库260中的信息来生成设备100的控制信号14; 用于存储测量信号1的数据的测量信号数据库210; 煤信息控制数据库220,其用于存储包含煤的至少水分值,燃料比和Hardgrobe可磨性指数(HGI)的煤信息5; 用于存储轧机属性信息的轧机属性信息数据库230; 用于计算轧制性能的轧制性能评估单元300; 用于计算轧机操作条件11的轧机操作计算单元400; 用于存储轧机操作条件11的计算结果数据库250; 以及用于存储设备100的控制逻辑的控制逻辑数据库260。
    • 4. 发明专利
    • Multiplexing control system and multiplexing method
    • 多重控制系统和多路复用方法
    • JP2006155678A
    • 2006-06-15
    • JP2006076046
    • 2006-03-20
    • Hitachi Ltd株式会社日立製作所
    • MIURA KAZUHIKOTAKAHASHI MASAEASAKURA KAZUYASUMARUYAMA YOSHIOSHIMIZU KATSUTOMOURI YUKIKOAKATSU TORU
    • G05B9/03
    • PROBLEM TO BE SOLVED: To provide a multiplexing system with a quick response property and high reliability.
      SOLUTION: This multiplexing control system, which has a common process input/output device distributing process signals detected by a plurality of sensors detecting the same condition quantity of the process to a plurality of digital controllers respectively, and a process input/output device inputting/outputting the process signal to/from a plant are arranged for each process signal. The process input/output device for the process signal is triplexed, duplexed, or simplexed according to the degree of importance, while process signals of the duplexed process input/output device and a simplexed process input/output device are individually controlled by a controller having a master right among the process controllers.
      COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:提供具有快速响应特性和高可靠性的复用系统。 解决方案:该多路复用控制系统具有共同的过程输入/输出设备,其将由多个传感器检测到的过程信号分配到多个数字控制器中检测到相同的处理状态量,以及过程输入/输出 针对每个处理信号设置向工厂输入/输出处理信号的装置。 过程信号的过程输入/输出设备根据重要程度进行三重复用,双工或单工,而双工过程输入/输出设备和单工过程输入/输出设备的过程信号由具有 过程控制器中的主控权。 版权所有(C)2006,JPO&NCIPI
    • 5. 发明专利
    • Control device and control method for thermal power plant
    • 热电厂控制装置及控制方法
    • JP2014052929A
    • 2014-03-20
    • JP2012198154
    • 2012-09-10
    • Hitachi Ltd株式会社日立製作所
    • SEKIAI TAKAOKUSUMI HISAHIROHAYASHI YOSHIHARUSUZUKI KANAKOTAKEUCHI HIROTOKITAGAWA KATSUHIDEAKATSU TORUFUKAI MASAYUKIASAKURA KAZUYASU
    • G05B13/02G05B13/04
    • Y02P90/02
    • PROBLEM TO BE SOLVED: To suppress deterioration of characteristics of a thermal power plant when an operation form or an environment changes.SOLUTION: A control device for a thermal power plant, which generates a first operation signal by referring to a measurement signal, includes an operation result determination part 410 for determining improvement/deterioration of characteristics of the thermal power plant as the result of outputting a first operation signal, a state classification part 420 for classifying the state of the thermal power plant by referring to the measurement signal, and a state storage database 430 for recording the determination result of the operation result determination part and the state of the thermal power plant classified by the state classification part in association with each other. Operation signal generation means continuously outputs the first operation signal currently output to the thermal power plant when the current state of the thermal power plant classified by the state classification part is a state when a second operation signal is generated reaching a state where the characteristics of the thermal power plant are determined to be worse by the operation result determination part.
    • 要解决的问题:当操作形式或环境变化时,抑制火力发电厂的特性劣化。解决方案:通过参考测量信号产生第一操作信号的火力发电厂的控制装置包括: 作为输出第一操作信号的结果,确定火电厂的特性的改善/劣化的运算结果判定部410,参照测定信号对火力发电厂的状态进行分类的状态分类部420,以及 状态存储数据库430,用于记录操作结果确定部分的确定结果和由状态分类部分分类的火力发电厂的状态。 当由状态分类部分分类的火力发电厂的当前状态是当产生第二操作信号达到状态的状态时,操作信号发生装置连续输出当前输出到火力发电厂的第一操作信号, 动力装置由运转结果判定部判定为较差。
    • 6. 发明专利
    • Process-controlling device
    • 过程控制装置
    • JP2006268882A
    • 2006-10-05
    • JP2006168732
    • 2006-06-19
    • Hitachi Ltd株式会社日立製作所
    • SHIMIZU KATSUTOMARUYAMA YOSHIOAKATSU TORUIWATA KIICHI
    • G05B9/03
    • PROBLEM TO BE SOLVED: To reduce the cost and installation space of a multiplex controlling device and maintain its reliability. SOLUTION: A process-controlling controller is provided with; an execution counter 116 which is updated when process input instructions are made in the case of an execution system; an outputting means which outputs a RUN signal while the process-controlling controller is active; an counter which monitors whether execution counter signals inputted from the corresponding computation device access control parts 45, 46 and 47 are updated, outputs an N signal if not updated, and outputs a Y signal if updated; a timer means to which the N signal of the counter is inputted; an OR circuit which receives the output of the timer means as an input to one side; a WO circuit which receives the output of the OR circuit and uses the Y signal as a deletion signal; and an AND circuit which receives the output of the WO circuit as an input to one side and uses the RUN signal as an input to the other side. The process-controlling controller stops a computation device access control parts corresponding to a process-controlling computation device when a signal is outputted from the AND circuit. COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:降低多路控制设备的成本和安装空间,并保持其可靠性。

      解决方案:提供了一个过程控制控制器; 在执行系统的情况下进行处理输入指令时更新的执行计数器116; 输出装置,其在所述过程控制控制器有效时输出RUN信号; 监视从相应的计算装置访问控制部分45,46和47输入的执行计数器信号是否被更新的计数器,如果不更新则输出N信号,如果更新则输出Y信号; 定时器装置,输入计数器的N信号; 接收定时器装置的输出作为一侧的输入的OR电路; 接收OR电路的输出并使用Y信号作为删除信号的WO电路; 以及AND电路,其将作为输入的WO电路的输出接收到一侧,并且使用RUN信号作为另一侧的输入。 当从AND电路输出信号时,处理控制控制器停止对应于处理控制计算装置的计算装置访问控制部分。 版权所有(C)2007,JPO&INPIT

    • 8. 发明专利
    • Plant control device and thermal power generation plant control device
    • 植物控制装置和热发电厂控制装置
    • JP2013206363A
    • 2013-10-07
    • JP2012077489
    • 2012-03-29
    • Hitachi Ltd株式会社日立製作所
    • SEKIAI TAKAOEGUCHI TORUKUSUMI HISAHIROFUKAI MASAYUKIAKATSU TORUKITAGAWA KATSUHIDE
    • G05B13/02G05B11/36G05B13/04
    • PROBLEM TO BE SOLVED: To provide a plant control device for achieving both high efficiency operation and constraint value observance.SOLUTION: A plant control device 200 includes control target function generation means 400 for determining a control target value in accordance with a plant operating state, and operation signal generation means 300 for generating an operation signal so as to make a measurement signal coincident with the control target value. The control target function generation means 400 has an operating state classifying part 440 for classifying the plant operating state into at least a steady operating state, and a load change operating state according to a predetermined condition by using a time series signal stored in a time series signal database storing the past measurement signals, a measurement signal fluctuation evaluation part 450 for calculating a fluctuation range of a measurement signal for each classified operating state, and an optimum setting value calculation part 460 for calculating a control target value for increasing a plant operation efficiency on the basis of the calculated fluctuation range of the measurement signal and a plant operating constraint value for each classified operating state.
    • 要解决的问题:提供一种用于实现高效率操作和约束值遵守的工厂控制装置。解决方案:工厂控制装置200包括用于根据工厂操作状态确定控制目标值的控制目标函数生成装置400, 以及用于产生操作信号以使测量信号与控制目标值一致的操作信号产生装置300。 控制目标函数发生装置400具有操作状态分类部440,用于通过使用以时间序列存储的时间序列信号,将工厂操作状态分类为至少稳定运行状态和根据预定条件的负载变化操作状态 信号数据库存储过去的测量信号,测量信号波动评估部分450,用于计算每个分类操作状态的测量信号的波动范围;以及最佳设定值计算部分460,用于计算用于提高设备操作效率的控制目标值 基于计算的测量信号的波动范围和每个分类的操作状态的工厂操作约束值。
    • 9. 发明专利
    • Data transmission method and control system
    • 数据传输方法与控制系统
    • JP2012088953A
    • 2012-05-10
    • JP2010235375
    • 2010-10-20
    • Hitachi Ltd株式会社日立製作所
    • YAMADA TAKAHIROMARUYAMA YOSHIOAKATSU TORU
    • G05B23/02G05B15/02G06F13/00
    • G05B19/0421G05B19/4186Y02P90/185Y02P90/86
    • PROBLEM TO BE SOLVED: To provide a data transmission method and a control system for creating the control program of each control device even when a concrete format of transmission data is not determined, and for making it unnecessary to change the control program even when the format of the transmission data is changed.SOLUTION: This data transmission method comprises: a step of associating each data to be transmitted between a plurality of control devices 2 with an identification key for uniquely specifying the data; a step of determining the array sequence of the identification key associated with each data to be transmitted by each of the control devices 2; a step of making each of the control devices 2 store each transmission data in the self-transmission frame according to the array sequence; and a step of making each of the control devices 2 specify the storage position of reception data in each transmission frame based on the array sequence 8 acquired from each control device 2 as the transmission origin of the reception data, and read the reception data from the storage position.
    • 要解决的问题:即使在没有确定传输数据的具体格式的情况下,也提供用于创建每个控制装置的控制程序的数据传输方法和控制系统,并且使得不需要甚至改变控制程序 当传输数据的格式发生变化时。 该数据传输方法包括:将要在多个控制装置2之间发送的每个数据与用于唯一地指定数据的识别密钥相关联的步骤; 确定与由每个控制装置2发送的每个数据相关联的识别密钥的阵列序列的步骤; 使每个控制装置2根据阵列序列存储自发送帧中的每个发送数据的步骤; 以及使每个控制装置2基于从每个控制装置2获取的阵列序列8将每个传输帧中的接收数据的存储位置指定为接收数据的发送原点的步骤,并从接收数据中读取接收数据 储存位置。 版权所有(C)2012,JPO&INPIT
    • 10. 发明专利
    • Operation controller for electric power facility
    • 电力设备操作控制器
    • JP2003016153A
    • 2003-01-17
    • JP2001198885
    • 2001-06-29
    • Hitachi Ltd株式会社日立製作所
    • MARUYAMA YOSHIOMOURI YUKIKOAKATSU TORUFUJIMURA HIDEKAZUFURUKAWA MASAOSHIMIZU KATSUTOHAYASAKA YASUSHIHAYASHI YOSHIHARU
    • G06Q50/10G05B23/02G06Q50/00G06Q50/06H02P9/04G06F17/60
    • PROBLEM TO BE SOLVED: To collectively perform operation management or monitor a plurality of electric power facilities in one operation center. SOLUTION: In an operation controller for an electric power facility provided with an electric power facility 3 provided with a protective device 14 for detecting an abnormal state that occurs in the electric power facility 3 to protect the electric power facility and a sensor 21 for measuring the process quantity of the electric power facility 3, and the operation center 2 provided with an operation managing device 12 for setting an operation target value of the electric power facility and managing an operating state and controlling the process quantity of the electric power facility on the basis of the operation target value and the process quantity measured by the sensor, the operation center 2 is connected to a plurality of electric power facilities through a communication line 1 to manage the plurality of electric power facilities with the one single operation center.
    • 要解决的问题:集中地在一个操作中心中进行操作管理或监视多个电力设施。 解决方案:在具有电力设施3的电力设施的电力设备的操作控制装置中,电力设施3设有用于检测在电力设施3中发生的异常状态以保护电力设施的保护装置14和用于测量电力设施的传感器21 电力设施3的处理量以及设置有运行管理装置12的运转中心2,用于设定电力设施的运行目标值并管理运转状态,并基于该功率设施的处理量进行控制 的操作对象值和由传感器测量的处理量,操作中心2通过通信线路1连接到多个电力设施,以通过一个操作中心来管理多个电力设施。