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    • 2. 发明专利
    • Coal type discriminating device and coal type discriminating method for coal burning boiler
    • 燃煤锅炉的煤类型识别装置和煤类型分辨方法
    • JP2009228995A
    • 2009-10-08
    • JP2008075695
    • 2008-03-24
    • Hitachi Ltd株式会社日立製作所
    • KUSUMI HISAHIROYAMADA AKIHIKOHAYASHI YOSHIHARUSEKIAI TAKAOEGUCHI TORUFUKAI MASAYUKISHIMIZU SATORU
    • F23N5/00
    • PROBLEM TO BE SOLVED: To provide a coal type discriminating device for a coal burning boiler can accurately and quickly discriminate a coal type by taking into consideration the fluctuation typical to plants and perform operation of the coal burning boiler corresponding to the coal type. SOLUTION: The coal type discriminating device of the coal burning boiler for discriminating the coal type based on a measurement signal of the coal burning boiler to be controlled includes: an exterior input interface for taking in a measurement signal from a controlling object, a measurement signal database for retaining the measurement signal taken in from the controlling object, a model for estimating a measurement signal value obtained when an operating signal is provided to the coal burning boiler to be controlled for each coal type, a learning part for learning a generation method of a model input so that a model output estimated by the model achieves a model output target value, an estimating part for calculating a difference between the measurement signal retained in the measurement signal database with the measurement signal estimated by the model as an estimation signal, and a determination part for determining a coal type or a mixed coal rate based on the estimation signal calculated by the estimating part. COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:为了提供一种燃煤锅炉的煤型识别装置,可以通过考虑到植物典型的波动并对与煤类相对应的燃煤锅炉进行操作来准确和快速地区分煤种 。 解决方案:用于基于要控制的燃煤锅炉的测量信号来识别煤种的燃煤锅炉的煤种识别装置包括:用于从控制对象接收测量信号的外部输入接口, 用于保持从控制对象取入的测量信号的测量信号数据库,用于估计当向每个煤型控制的燃煤锅炉提供操作信号时获得的测量信号值的模型,用于学习 模型输入的生成方法,使得由模型估计的模型输出实现模型输出目标值,估计部分,用于计算保留在测量信号数据库中的测量信号与由模型估计的测量信号之间的差作为估计 信号,以及基于估计信号确定煤炭类型或混煤速率的确定部件 l由估计部分计算。 版权所有(C)2010,JPO&INPIT
    • 3. 发明专利
    • Control device and control method for boiler
    • 锅炉控制装置及控制方法
    • JP2009198137A
    • 2009-09-03
    • JP2008042802
    • 2008-02-25
    • Hitachi Ltd株式会社日立製作所
    • YAMADA AKIHIKOSEKIAI TAKAOEGUCHI TORUFUKAI MASAYUKISHIMIZU SATORU
    • F23N5/00F22B35/00F23C99/00
    • PROBLEM TO BE SOLVED: To provide a control device for a boiler capable of reducing the concentration of NOx generated in the boiler to a desired value by avoiding a situation wherein operation of a soot blower becomes a disturbance of a control system and properly setting an air supply amount to the boiler.
      SOLUTION: The control device for the boiler controlling operation of the boiler equipped with the soot blower removing deposits of an inner wall face of the boiler or a transfer tube is composed by providing an NOx concentration correcting means for calculating a corrected NOx concentration by inputting a soot blower passage time and correcting a measured value of the NOx concentration on the basis of a relationship between the soot blower passage time from soot blower actuation, and the measured value of the nitrogen oxide (NOx) concentration in combustion gas generated by the boiler or deviation from a reference value of the NOx measured value, and an operation command value determining means for calculating an operation command value corresponding to an air flow rate supplied from a burner or an air port of the boiler and outputting it to an operation apparatus, by using the corrected NOx concentration output from the NOx concentration correcting means.
      COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:提供一种锅炉的控制装置,其能够通过避免烟炱鼓风机的操作成为控制系统的干扰并正确地将锅炉中产生的NOx的浓度降低到期望值来减少 设置锅炉的供气量。 解决方案:设置有锅炉控制装置的锅炉控制装置,其中锅炉的控制装置具有除锅炉或转运管的内壁面的排灰孔的沉积物,其特征在于,提供一种NOx浓度校正装置,用于计算校正的NOx浓度 通过输入烟灰鼓风机通过时间,并且基于来自吹灰器致动器的烟灰鼓风机通过时间与由燃烧器致动所产生的燃烧气体中的氮氧化物(NOx)浓度的测量值的关系来校正NOx浓度的测量值, 锅炉或与NOx测量值的参考值的偏差;以及操作指令值确定装置,用于计算与从锅炉的燃烧器或空气口供应的空气流量对应的操作指令值,并将其输出到操作 装置,通过使用从NOx浓度校正装置输出的校正的NOx浓度。 版权所有(C)2009,JPO&INPIT
    • 4. 发明专利
    • Control device and method of thermal power generation plant
    • 控制装置和热发电厂的方法
    • JP2008249187A
    • 2008-10-16
    • JP2007088067
    • 2007-03-29
    • Hitachi Ltd株式会社日立製作所
    • SEKIAI TAKAOYAMADA AKIHIKOYAMAMOTO KENJIEGUCHI TORUSHIMIZU SATORUFUKAI MASAYUKI
    • F23N5/00F23C99/00F23N3/00
    • Y02E20/328
    • PROBLEM TO BE SOLVED: To provide a control device of a thermal power generation plant capable of effectively reducing CO in a boiler exhaust gas by supplying the air of necessary flow rate to a region of low O 2 concentration, when bias is found in a distribution of O 2 concentration of an exhaust gas at a boiler outlet. SOLUTION: This control device of the thermal power generation plant comprises measuring equipment for measuring oxygen concentration or carbon monoxide concentration of a combustion gas at the outlet of a boiler, and a controller is provided with a reaching region estimating means for estimating a region to which the air supplied from a burner of the boiler or an air port reaches the outlet of the boiler, and an operation signal creating means for setting the flow rate of the air supplied from the burner or the air port on the basis of a measured value of the carbon monoxide concentration or oxygen concentration of the combustion gas of the boiler outlet measured by the measuring equipment, and a result of the estimation of the reaching region estimated by the reaching region estimating means, to increase the flow rate of the air reaching to a region of high carbon monoxide concentration or a region of low oxygen concentration, of the combustion gas of the boiler outlet measured by the measuring equipment. COPYRIGHT: (C)2009,JPO&INPIT
    • 解决的问题:提供一种能够通过将必要流量的空气供给到低O 2 SBB的区域来有效地减少锅炉废气中的CO的火力发电厂的控制装置 当在锅炉出口处的废气的浓度分布中发现偏差时,浓度。 解决方案:火力发电厂的这种控制装置包括用于测量锅炉出口处的燃烧气体的氧浓度或一氧化碳浓度的测量设备,并且控制器设置有到达区域估计装置,用于估计 从锅炉或燃气口的燃烧器供给的空气到达锅炉的出口的区域;以及操作信号生成装置,用于根据燃烧器或空气口供给的空气的流量 由测量设备测量的锅炉出口的燃烧气体的一氧化碳浓度或氧浓度的测量值以及由到达区域估计装置估计的到达区域的估计结果,以增加空气的流量 达到锅炉出口燃烧气体的高一氧化碳浓度区域或低氧浓度区域 测量设备。 版权所有(C)2009,JPO&INPIT
    • 5. 发明专利
    • Plant state monitoring device and plant state monitoring method
    • 植物状态监测装置和植物状态监测方法
    • JP2013140495A
    • 2013-07-18
    • JP2012000350
    • 2012-01-05
    • Hitachi Ltd株式会社日立製作所
    • SEKIAI TAKAOEGUCHI TORUKUSUMI HISAHIROFUKAI MASAYUKISHIMIZU SATORUMURAKAMI MASAHIRO
    • G05B23/02
    • PROBLEM TO BE SOLVED: To provide a plant state monitoring device that negates the need of prior knowledge with respect to a plant that is an application object and can automatically acquire information contributing to a reduction in operating costs.SOLUTION: A plant state monitoring device for monitoring an operational state of a plant 100 comprises: model data selection means 400 for determining a given period of time before and after time when a maximum value is obtained or a given period of time before and after time when a minimum value is obtained as a period of time of model data for at least one time-series data of time-series data of efficiency of the plant 100 calculated from a measurement signal 4 and time-series data of the measurement signal 4 for an environmental load substance and for selecting the time-series data in the period of time of the model data as the model data; and state monitor means 500 that classifies the model data into a plurality of categories, constructs monitor models 600A through 600C, determines whether or not a current measurement signal 6 belongs to the plurality of categories of the monitor models 600A through 600C and outputs a determination result to an image display device 940.
    • 要解决的问题:提供一种植物状态监测装置,其不需要相对于作为应用对象的植物的先验知识,并且可以自动获取有助于降低操作成本的信息。解决方案:用于 监视工厂100的操作状态包括:模型数据选择装置400,用于确定获得最大值时间之前和之后的给定时间段,或者当获得最小值时间之前和之后的给定时间段作为 从测量信号4计算的工厂100的效率的时间序列数据的至少一个时间序列数据的模型数据的时间段和环境负荷物质的测量信号4的时间序列数据,以及用于选择 时间序列数据在模型数据的时间段作为模型数据; 以及将模型数据分类为多个类别的状态监视装置500,构成监视模型600A〜600C,判断当前测量信号6是否属于监视模型600A〜600C的多个类别,并输出确定结果 到图像显示装置940。
    • 6. 发明专利
    • Power-generating plant diagnosis device, and power-generating plant diagnosis method
    • 动力发电厂诊断装置和发电厂诊断方法
    • JP2013061695A
    • 2013-04-04
    • JP2011197837
    • 2011-09-12
    • Hitachi Ltd株式会社日立製作所
    • SEKIAI TAKAOEGUCHI TORUKUSUMI HISAHIROFUKAI MASAYUKISHIMIZU SATORUMURAKAMI MASAHIRO
    • G05B23/02
    • PROBLEM TO BE SOLVED: To provide a diagnosis device which reduces a false report that cannot detect abnormality when the abnormality occurs, and has high diagnostic accuracy.SOLUTION: A power-generating plant diagnosis device diagnoses an operation state of a plant on the basis of a measurement signal for measuring state amount from a power-generating plant, and indicates a diagnosis result on an image display device. The power-generating plant diagnosis device includes: model constructing means 700 for constructing a model to be used for diagnosis by using the measurement signal for measuring the state amount of the power-generating plant; model defining means 400 for defining a normalization method of the operation condition diagnosed by the above-mentioned model and the measurement signal; and diagnosing means 800 for diagnosing the operation state of the power-generating plant by using the model constructed by the model constructing means. The model defining means includes an operation condition determining portion 500 for determining the operation conditions of the power-generating plant; and a normalization condition deciding portion 600 for deciding the normalization condition of data about each operation condition determined by the operation condition determining portion. The diagnosing means diagnoses the operation state by switching the diagnosis model according to the operation condition.
    • 要解决的问题:提供一种诊断装置,其减少当异常发生时不能检测到异常的虚假报告,并且具有高诊断精度。 解决方案:发电厂诊断装置基于用于测量来自发电厂的状态量的测量信号来诊断工厂的操作状态,并且在图像显示装置上指示诊断结果。 发电厂诊断装置包括:模型构成单元700,用于通过使用测量信号构造用于诊断的模型,用于测量发电厂的状态量; 用于定义由上述模型诊断的操作条件和测量信号的归一化方法的模型定义装置400; 以及诊断装置800,用于通过使用由模型构建装置构造的模型来诊断发电厂的运行状态。 模型定义装置包括用于确定发电厂的操作条件的操作条件确定部分500; 以及归一化条件决定部600,用于判定由操作条件确定部确定的关于每个操作条件的数据的归一化条件。 诊断装置根据操作条件切换诊断模型来诊断操作状态。 版权所有(C)2013,JPO&INPIT
    • 8. 发明专利
    • Control device for plant and control device for fire power generation plant
    • 用于火力发电厂的设备和控制装置的控制装置
    • JP2012141862A
    • 2012-07-26
    • JP2011000301
    • 2011-01-05
    • Hitachi Ltd株式会社日立製作所
    • EGUCHI TORUKUSUMI HISAHIROSEKIAI TAKAOFUKAI MASAYUKISHIMIZU SATORU
    • G05B13/02G05B13/04
    • G05B13/048
    • PROBLEM TO BE SOLVED: To provide a control device of a plant for, when adjusting a statistical model by on-line via an RBF network by using the measurement data of a plant, improving the estimating accuracy of the statistical model by ending optimized calculation within a control period.SOLUTION: The control device of a plant includes: a statistical model for estimating the value of a measurement signal to be acquired when applying a control signal to the plant; a model construction database for storing data to be used for the construction of the statistical model; a data pre-processing part for generating model construction data by operating statistical processing to the measurement signal; an operation method learning part for learning the generation method of a model input so that a target value can be achieved by a model output; and a model adjustment part for adjusting the radial parameter of the statistical model included in information stored in the model construction database. The statistical model is configured to generate the model output by using the result of adjustment of the radial parameter by the model adjustment part .
    • 要解决的问题:为了提供一种工厂的控制装置,当通过使用工厂的测量数据通过RBF网络在线调整统计模型时,通过结束来提高统计模型的估计精度 在控制期内优化计算。 解决方案:工厂的控制装置包括:用于估计当向工厂应用控制信号时要获取的测量信号的值的统计模型; 用于存储要用于构建统计模型的数据的模型构建数据库; 数据预处理部,其通过对所述测量信号进行统计处理来生成模型构造数据; 用于学习模型输入的生成方法的操作方法学习部分,从而可以通过模型输出来实现目标值; 以及用于调整包含在模型构造数据库中存储的信息中的统计模型的径向参数的模型调整部分。 统计模型配置为通过模型调整部分使用径向参数的调整结果生成模型输出。 版权所有(C)2012,JPO&INPIT
    • 9. 发明专利
    • Abnormality diagnostic device and abnormality diagnostic method
    • 异常诊断装置和非正常诊断方法
    • JP2011070334A
    • 2011-04-07
    • JP2009219901
    • 2009-09-25
    • Hitachi Ltd株式会社日立製作所
    • SEKIAI TAKAOEGUCHI TORUOKAZAKI TERUYUKISHIMIZU SATORUFUKAI MASAYUKI
    • G05B23/02
    • PROBLEM TO BE SOLVED: To provide an abnormality diagnostic device capable of appropriately adjusting a resolution parameter, and highly precisely detecting abnormality, the abnormality diagnostic device using a clustering technology. SOLUTION: A reference signal determination means has a function for dividing a measurement signal in a normal time of a plant into two or more data groups, and a classification means includes: a learning part for classifying one of the data groups into categories: a test part for classifying one of the residual data groups, which are not used by the learning part, into categories; and a resolution parameter adjustment part for adjusting a resolution parameter to be used when classifying the data group into categories, by using the classification results of the learning part and the test part. COPYRIGHT: (C)2011,JPO&INPIT
    • 解决问题的方法为了提供能够适当地调整分辨率参数,高精度地检测异常的异常诊断装置,使用聚类技术进行异常诊断。 解决方案:参考信号确定装置具有将工厂的正常时间中的测量信号分成两个或更多个数据组的功能,并且分类装置包括:学习部分,用于将数据组中的一个分类成类别 :用于将学习部分未使用的剩余数据组之一分类为分类的测试部件; 以及分辨率参数调整部,其通过使用所述学习部和所述测试部的分类结果来调整将所述数据组分类成类别时所使用的分辨率参数。 版权所有(C)2011,JPO&INPIT
    • 10. 发明专利
    • Device and method for diagnosing abnormality of plant
    • 用于诊断植物异常的装置和方法
    • JP2010237893A
    • 2010-10-21
    • JP2009083989
    • 2009-03-31
    • Hitachi Ltd株式会社日立製作所
    • SEKIAI TAKAOYAMADA AKIHIKOEGUCHI TORUKUSUMI HISAHIROHORI YOSHINARIFUKAI MASAYUKISHIMIZU SATORU
    • G05B23/02
    • PROBLEM TO BE SOLVED: To provide an abnormality diagnosing device for a plant capable of reducing the risk of erroneous diagnosis. SOLUTION: This diagnosing device 200 includes a measured signal database 230 storing a measured signal of the plant, an abnormality determination database 250 storing category classification information with normal-time or abnormal-time data classified into categories, and the appearance frequency of the category classification information, and a comparison means 700 for comparing a result, of the data stored in the measured signal database 230, classified into the category, with the category classification information stored in the abnormality determination database 250, using information of the appearance frequency of the category classification information, so as to diagnose an operation state of the plant, and for outputting information of announcing abnormality, as an image display data, when a diagnostic result is abnormal. COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:提供一种能够降低错误诊断风险的设备的异常诊断装置。 解决方案:该诊断装置200包括存储工厂的测量信号的测量信号数据库230,存储分类为正常时间或异常时间数据的类别分类信息的异常判定数据库250, 类别分类信息,以及比较装置700,用于将存储在测量信号数据库230中的分类到类别的数据与存储在异常判定数据库250中的类别分类信息的结果,使用出现频率的信息进行比较 的诊断结果异常的情况下,诊断植物的运转状态,输出通知异常的信息作为图像显示数据。 版权所有(C)2011,JPO&INPIT