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1. 发明专利

IN2779DEN2012A "PLANT DIAGNOSTIC EQUIPMENT" 未知
公开(公告)号：IN2779DEN2012A
公开(公告)日：2015-09-18
申请号：IN2779DEN2012
申请日：2012-03-30
申请人： HITACHI LTD
发明人： SEKIAI TAKAAKI , EGUCHI TORU , KUSUMI NAOHIRO , HORI YOSHINARI , FUKAI MASSAYUKI , SHIMIZU SATORU
IPC分类号： G05B23/02
摘要： Provided is diagnostic equipment for selecting a data item to be used for a diagnosis on the basis of operation history information of an operator. Plant diagnostic equipment receives a measurement signal of a plant and an operation signal of a time of operation performed by an operator using an external input device and displays a state of the plant on an image display device as display information. The plant diagnostic equipment includes a measurement signal database for storing the measurement signal of the plant, an operation history database for storing the operation signal of a time of the operation performed by the operator using the external input device, and learning means for extracting a data item to be used for a diagnosis of the plant from the display information displayed on the image display device by the operation performed by the operator using the external input device when an abnormality in the plant occurs.

2. 发明专利

PH12020550471A1 PLANT OPERATION ASSISTANCE DEVICE AND OPERATION ASSISTANCE METHOD 未知
公开(公告)号：PH12020550471A1
公开(公告)日：2021-03-15
申请号：PH12020550471
申请日：2020-04-22
申请人： HITACHI LTD
发明人： SEKIAI TAKAAKI , TANNO MITSUHIRO , KUROHA YOSHIYUKI
IPC分类号： G05B23/02
摘要： The purpose of the present invention is to quickly stop a plant when an abnormality occurs so as to avoid an increase in damage cost due to propagation of the abnormality. An operation assistance device 200 comprises: a diagnosis means 500 for diagnosing an operation state of a plant 100 on the basis of operation data 3; an abnormality propagation prediction means 600 for predicting, on the basis of the diagnosis results obtained by the diagnosis means 500 and by using a physical model, the devices to which the abnormality will propagate and the time thereof; a cost calculation means 700 for predicting, on the basis of the results of the abnormality propagation prediction means 600, the change over time of the damage cost; and a plant stop determination means 800 for generating a signal that stops the plant 100 if the damage cost is equal to or greater than a predetermined damage cost of suddenly stopping the plant 100.

3. 发明专利

CA2509558A1 STEAM TEMPERATURE CONTROL SYSTEM, METHOD OF CONTROLLING SYSTEM TEMPERATURE AND POWER PLANT USING THE SAME 未知
公开(公告)号：CA2509558A1
公开(公告)日：2005-12-11
申请号：CA2509558
申请日：2005-06-06
申请人： HITACHI LTD
发明人： SHIMIZU SATORU , SEKIAI TAKAAKI , OSAWA YO
IPC分类号： F01K1/00 , F01K7/00 , F01K7/34 , F01K11/00 , F01K13/00 , F22B35/18 , F22G5/12 , F28F27/00 , G05D23/19
摘要： A steam temperature control system for a power plant for controlling a temperature of steam flowing through steam pipes connected to a heat exchanger to a target temperature by spraying water by means of a spray valve of an attemperator, having a target temperature calculation section for calculating the target temperature of the steam for determining the target temperatures of the plural steam pipes connected to the heat exchanger in respective steam pipes connected to a common heat exchanger; and an instruction value calculation section for calculating command values to the spray valves disposed to the respective steam pipes, based on the target temperatures determined by the calculation in the target temperature calculating section.

4. 发明专利

PH12020551136A1 DIAGNOSIS APPARATUS AND DIAGNOSIS METHOD 未知
公开(公告)号：PH12020551136A1
公开(公告)日：2021-05-31
申请号：PH12020551136
申请日：2020-07-27
申请人： HITACHI LTD
发明人： SEKIAI TAKAAKI , TANNO MITSUHIRO , KUROHA YOSHIYUKI
IPC分类号： G05B23/02
摘要： The present invention provides a diagnosis device for diagnosing an abnormality in a facility on the basis of operation data of the facility, the diagnosis device being provided with: a clustering unit for determining whether the operation data of the facility can be classified into existing clusters or not, and in the case where it is determined that the classification cannot be performed, adding a cluster, an attribute of which is set to be abnormal to the existing clusters; a diagnosis unit for diagnosing an abnormality in the facility on the basis of a result of the processing by the clustering unit; and a cluster attribute setting unit for setting attributes of the existing clusters on the basis of the operation data of the facility in a predetermined period.

5. 发明专利

CA2509558C STEAM TEMPERATURE CONTROL SYSTEM, METHOD OF CONTROLLING SYSTEM TEMPERATURE AND POWER PLANT USING THE SAME 未知
公开(公告)号：CA2509558C
公开(公告)日：2008-08-05
申请号：CA2509558
申请日：2005-06-06
申请人： HITACHI LTD
发明人： SHIMIZU SATORU , SEKIAI TAKAAKI , OSAWA YO
IPC分类号： F01K1/00 , F01K7/00 , F01K7/34 , F01K11/00 , F01K13/00 , F22B35/18 , F22G5/12 , F28F27/00 , G05D23/19
摘要： A steam temperature control system for a power plant for controlling a temperature of steam flowing through steam pipes connected to a heat exchanger to a target temperature by spraying water by means of a spray valve of an attemperator, having a target temperature calculation section for calculating the target temperature of the steam for determining the target temperatures of the plural steam pipes connected to the heat exchanger in respective steam pipes connected to a common heat exchanger; and an instruction value calculation section for calculating command values to the spray valves disposed to the respective steam pipes, based on the target temperatures determined by the calculation in the target temperature calculating section.

6. 发明专利

PH12020550507A1 DATA CLASSIFICATION DEVICE 未知
公开(公告)号：PH12020550507A1
公开(公告)日：2021-03-22
申请号：PH12020550507
申请日：2020-04-29
申请人： HITACHI LTD
发明人： HAYASHI YOSHIHARU , SEKIAI TAKAAKI , KUROHA YOSHIYUKI , HIRATSUKA MASAYUKI
IPC分类号： G05B23/02
摘要： An objective of the present invention is to provide a data classification device and malfunction diagnostic system capable of reducing false detections. For this purpose, a data classification device according to the present invention comprises: a data classification part 30 for classifying operation data into a plurality of categories; and a classification result database 40 for managing the output of the data classification part. The data classification part 30 preferentially selects, as candidate categories, the categories having lower generation numbers, which represent the order in which the categories have been generated, and determines the categories of the operating data accordingly.

7. 发明专利

JP2007272361A Controller for plant 有权
标题翻译：植物控制器
公开(公告)号：JP2007272361A
公开(公告)日：2007-10-18
申请号：JP2006094762
申请日：2006-03-30
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： KUSUMI HISAHIRO , YAMADA AKIHIKO , SEKIAI TAKAAKI , HAYASHI YOSHIHARU , FUKAI MASAYUKI , SHIMIZU SATORU
IPC分类号： G05B13/02 , F23N5/00
CPC分类号： G05B13/041
摘要： PROBLEM TO BE SOLVED: To provide a controller of a plant for easily preparing a simulation model.
SOLUTION: This controller of a plant is provided with a model 500 for predicting the value of a measurement signal 1 to be acquired from a control object 100 when a prescribed operation signal 16 is applied to the control object 100; a learning part 600 for learning the generation method of a model input 12 to be applied to the model 500 so that a model output 13 being the prediction result of the model 500 can converge on a model output target value; and an operation signal generation part 300 for generating an operation signal 15 according to the result of the learning part 600, wherein the operation signal 15 to be generated by the operation signal generation part 300 is acquired as an operation signal 16. This controller of the plant is provided with an external input interface 210 for capturing the measurement signal 1 and a measurement signal database 230 for storing the value of the measurement signal 2, wherein the average and distribution of the measurement signals stored in the measurement signal database 230 is calculated by the learning part 600, and the operation signal 15 is corrected by the operation signal generation part 300 by using the result of average and distribution.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于容易地准备仿真模型的设备的控制器。解决方案：当将规定的操作信号16应用于控制对象100时，该设备的该控制器具有用于预测从控制对象100获取的测量信号1的值的模型500; 用于学习要应用于模型500的模型输入12的生成方法的学习部分600，使得作为模型500的预测结果的模型输出13可以收敛于模型输出目标值; 以及用于根据学习部分600的结果产生操作信号15的操作信号产生部分300，其中由操作信号产生部分300产生的操作信号15被获取为操作信号16.该控制器设置有用于捕获测量信号1的外部输入接口210和用于存储测量信号2的值的测量信号数据库230，其中存储在测量信号数据库230中的测量信号的平均和分布由通过使用平均和分布的结果由操作信号产生部分300校正学习部分600和操作信号15。版权所有（C）2008，JPO＆INPIT

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