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1. 发明专利

JPH113093A RECOGNIZING METHOD AND DEVICE FOR VOICE DATA 失效
公开(公告)号：JPH113093A
公开(公告)日：1999-01-06
申请号：JP15372297
申请日：1997-06-11
申请人： HITACHI LTD , CHUGOKU ELECTRIC POWER
发明人： HAYASHI YOSHIHARU , OGA KOJI , MARUYAMA BUICHI , SHIROMARU ISAO , YAMADA ISAO
IPC分类号： G10L15/10 , G10L15/00 , G10L15/22 , G10L15/28 , G10L3/00
摘要： PROBLEM TO BE SOLVED: To improve a recognition rate of voice recognition without depending on an object applied by voice recognition and variation of situation by deciding the order of candidate words in accordance with relation between a characteris tic of an object relating to an input voice and a candidate word. SOLUTION: When a candidate word sent from a voice recognizing section 12 is numerical value data, an inspection record storing section 16 outputs a candidate word and a candidate order to a numerical value data deciding section 17. In this case, the numerical data deciding section 17 refers to a sensor installation information storing section 18 and a plant data base 19, and changes a candidate order of a candidate word. The sensor installation information storing section 18 changes a candidate order by comparing a taken value of process quantity obtained from the plant database 19 with a candidate word. And a inspection record control section 15 uses a word of which a candidate order is highest among candidate words sent from the numerical value data deciding section 17, and stores inspection record in the inspection record storing section 15.

2. 发明专利

JPH11212947A ESTIMATING METHOD AND DEVICE FOR TIME SERIES DATA 失效
公开(公告)号：JPH11212947A
公开(公告)日：1999-08-06
申请号：JP1228498
申请日：1998-01-26
申请人： CHUGOKU ELECTRIC POWER , HITACHI LTD
发明人： SHIROMARU ISAO , SEKI HIROSHI , OGA KOJI , YUJI HIROYUKI , TOMINAGA KENJI , HAYASHI YOSHIHARU , MARUYAMA BUICHI
IPC分类号： G21D3/00 , G06F15/18 , G06F17/00 , G06F19/00 , G06N3/00 , G06Q10/04 , G06Q50/00 , G06Q50/04
摘要： PROBLEM TO BE SOLVED: To estimate with high accuracy the further value of time series data which include various frequency components and are complicatedly changed. SOLUTION: Time series data which include various frequency components and are complicatedly changed are decomposed into the plural time series data by a time series data decomposing device 70. The estimating devices 101 to 103 estimate the further value for every plural decomposed time series data and then decide the further value of the time series data including various frequency components and being complicatedly changed based on the plural estimated further values.

3. 发明专利

JPH10187226A PLANT STATE PREDICTING DEVICE 失效
公开(公告)号：JPH10187226A
公开(公告)日：1998-07-14
申请号：JP34166796
申请日：1996-12-20
申请人： HITACHI LTD , CHUGOKU ELECTRIC POWER
发明人： SEKI HIROSHI , OGA KOJI , HAYASHI YOSHIHARU , MARUYAMA BUICHI , SHIROMARU ISAO , YAMADA ISAO , WATANABE SHIGEO
IPC分类号： G05B23/02 , G06F17/00 , G06F19/00 , G06Q50/00 , G06Q50/04
摘要： PROBLEM TO BE SOLVED: To provide a plant state predicting device to be easily and flexibly constructed in accordance with the characteristics of a plant or a system. SOLUTION: A candidate selection device 30 selects a process amount candidate to be used as an input variable based on the contents of a data base 40 and a predicted target y (t) or the like inputted from an input device 20. A response characteristic analyzing device 70 finds out the response characteristic of the target y (t) corresponding to the change of each candidate value. A relative process amount selecting device 50 selects a process amount to be used as an input variable from the candidate based on the response characteristics. A data entry time range determining device 60 determines a data entry range based on the response characteristic. A prediction system selecting device 80 or the like selects a prediction system having a small prediction error after applying determined conditions to various prediction systems. A program preparation device 100 generates a prediction program.

4. 发明专利

DE102008038347A1 未知
公开(公告)号：DE102008038347A1
公开(公告)日：2009-09-24
申请号：DE102008038347
申请日：2008-08-19
申请人： HITACHI LTD
发明人： YOSHIDA TAKUYA , MORIKAWA TOSHIHIRO , GOTOU JINICHIROU , HAYASHI YOSHIHARU
IPC分类号： F02C9/00 , G01M15/14
摘要： A gas turbine performance analysis system includes a performance computation module for receiving an actual measured value of an inlet air temperature introduced to a compressor, a compressor pressure ratio, and a flow rate of fuel supplied to the gas turbine, and for calculating and outputting values of the gas turbine's power output and exhaust temperature based on these actual measured values. A performance estimation module evaluates the performance of the gas turbine based on the deviation between the values of power output and exhaust temperature outputted from the performance computation module and the actual measured values of power output and exhaust temperature. An adjustment module calculates a corrected value of the fuel flow rate based on the actual measured values of inlet air temperature, compressor pressure ratio and fuel flow rate, and inputs the corrected fuel flow rate value into the performance computation module.

5. 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.

6. 发明专利

AU2011225455B2 Coal-fired power plant, and method for operating coal-fired power plant 未知
公开(公告)号：AU2011225455B2
公开(公告)日：2014-10-23
申请号：AU2011225455
申请日：2011-02-07
申请人： HITACHI LTD
发明人： HAYASHI YOSHIHARU
IPC分类号： F01K7/44 , F01K9/00 , F22D1/02 , F22D1/12
摘要： Disclosed is a coal-fired power plant provided with a first flow rate control valve which adjusts the amount of water flowing through a water supply bypass system, a second flow rate control valve disposed on an air extraction pipe which extracts steam from a steam turbine, a first temperature sensor disposed on the downstream side of a heat recovery device, and a second temperature sensor disposed on the downstream side of a heat exchanger. Moreover, the coal-fired power plant is provided with a control unit, which adjusts the aperture of the first and second flow rate control valves on the basis of the exhaust gas temperature detected by means of the first temperature sensor and the water supply temperature detected by means of the second temperature sensor. As a consequence, it is possible to prevent the reliability and efficiency of the plant from deteriorating, even when the exhaust gas temperature or the exhaust gas flow rate fluctuates as a result of the boiler deteriorating over time and when the amount of heat collected by means of the heat recovery device disposed on the smoke path fluctuates.

7. 发明专利

AU2011225455A1 Coal-fired power plant, and method for operating coal-fired power plant 未知
公开(公告)号：AU2011225455A1
公开(公告)日：2012-09-13
申请号：AU2011225455
申请日：2011-02-07
申请人： HITACHI LTD
发明人： HAYASHI YOSHIHARU
IPC分类号： F01K7/44 , F01K9/00 , F22D1/02 , F22D1/12
摘要： Disclosed is a coal-fired power plant provided with a first flow rate control valve which adjusts the amount of water flowing through a water supply bypass system, a second flow rate control valve disposed on an air extraction pipe which extracts steam from a steam turbine, a first temperature sensor disposed on the downstream side of a heat recovery device, and a second temperature sensor disposed on the downstream side of a heat exchanger. Moreover, the coal-fired power plant is provided with a control unit, which adjusts the aperture of the first and second flow rate control valves on the basis of the exhaust gas temperature detected by means of the first temperature sensor and the water supply temperature detected by means of the second temperature sensor. As a consequence, it is possible to prevent the reliability and efficiency of the plant from deteriorating, even when the exhaust gas temperature or the exhaust gas flow rate fluctuates as a result of the boiler deteriorating over time and when the amount of heat collected by means of the heat recovery device disposed on the smoke path fluctuates.

8. 发明专利

JP2017117033A プラント監視システム及びプラント監視方法审中-公开
公开(公告)号：JP2017117033A
公开(公告)日：2017-06-29
申请号：JP2015249218
申请日：2015-12-22
申请人：株式会社日立製作所 , Hitachi Ltd
发明人： HAYASHI YOSHIHARU , SEKIAI TAKAO , MURAKAMI MASAHIRO , KONNO HIROMITSU , SADAE KAZUKI
IPC分类号： G06Q50/06
CPC分类号： G06Q50/06
摘要：【課題】本発明の目的は、プラントに供給される燃料の単価を時系列データまたはリアルタイムデータとして評価することである。これによって、プラント構成機器の効率低下に伴う燃料増加量のデータと組み合わせることにより、燃料コストの増加量を時系列またはリアルタイムで把握することが可能となる。【解決手段】上記課題を解決する為に、本発明に係るプラント監視システムは、燃料種類ごとの単価情報を登録する燃料情報登録部と、燃料種類ごとにプラントに供給する燃料の供給量を管理する貯蔵燃料管理部と、前記単価情報及び前記供給量に基づいて、前記プラントに供給されている燃料単価を計算する供給燃料計算部とを備えることを特徴とする。【選択図】図1

9. 发明专利

JP2014126305A Boiler control device 有权
标题翻译：锅炉控制装置
公开(公告)号：JP2014126305A
公开(公告)日：2014-07-07
申请号：JP2012283857
申请日：2012-12-27
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： HAYASHI YOSHIHARU , SEKIAI TAKAO , FUKAI MASAYUKI , AKATSU TORU , TAKEUCHI HIROTO
IPC分类号： F22B35/00
摘要： PROBLEM TO BE SOLVED: To compensate response lag of a boiler at the time of load change of the boiler by optimizing a fuel BIR signal (a boiler input regulator, a boiler input acceleration signal) for increasing fuel precedently, reducing a coal consumption, and stabilizing a steam temperature.SOLUTION: In a boiler control device that creates a precedent control signal of a fuel flow amount for precedently inputting fuel in order to compensate response lag of a boiler at the time of load change of the boiler, the precedent control signal is corrected on the basis of a measured value of the boiler.
摘要翻译：要解决的问题：为了通过优化用于先前增加燃料的燃料BIR信号（锅炉输入调节器，锅炉输入加速度信号）来补偿锅炉负荷变化时锅炉的响应滞后，减少煤耗，以及稳定蒸汽温度。解决方案：在锅炉控制装置中，为了补偿锅炉的负荷变化时的锅炉的响应滞后，创建用于先前输入燃料的燃料流量的先验控制信号，先前的控制信号基于锅炉的测量值进行校正。

10. 发明专利

JP2011075177A Oxygen combustion boiler system and its starting method 审中-公开
标题翻译：氧气燃烧锅炉系统及其启动方法
公开(公告)号：JP2011075177A
公开(公告)日：2011-04-14
申请号：JP2009225920
申请日：2009-09-30
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： TSUDA SHINJI , SHIBATA TSUTOMU , HAYASHI YOSHIHARU , YAMAMOTO KENJI , OKAZAKI TERUYUKI
IPC分类号： F23C9/08 , F22B35/04 , F22B35/14 , F23C1/10 , F23C1/12 , F23L7/00
CPC分类号： Y02E20/344
摘要： PROBLEM TO BE SOLVED: To provide an oxygen combustion boiler system capable of increasing concentration of carbon dioxide in an exhaust gas by reducing an amount of air used in starting, and preventing misfire of burner flame. SOLUTION: This method of starting the burner of the oxygen combustion boiler system has a first process in which an ignition torch is formed in a furnace chamber, and oil drops or a flammable gas as a main fuel is burned near the burner or the ignition torch in the furnace chamber while using a gas mainly composed of the air as a susceptible gas for the combustion of the main fuel, a second process in which an air flow rate is reduced by adjusting a flow rate of the air used in the susceptible gas while increasing a ratio of a flow rate of a recirculation gas or high purity oxygen by adjusting a recirculation flow rate of a part of an exhaust gas or a flow rate of oxygen supplied from a high-purity oxygen manufacturing device, so that the susceptible gas is finally converted into a gas including the recirculation gas or the gas including high-purity oxygen as its main component, and a third process in which the main fuel is switched from the oil drops or the combustible gas to coal. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种氧气燃烧锅炉系统，其能够通过减少起动中使用的空气量来增加排气中二氧化碳的浓度，并且防止燃烧器火焰失火。解决方案：这种启动氧气燃烧锅炉系统的燃烧器的方法具有第一个过程，其中在炉室中形成点火炬，并且作为主要燃料的油滴或易燃气体在燃烧器附近燃烧或使用主要由空气组成的气体作为主燃料燃烧的敏感气体的炉室中的点火炬，通过调节主燃料中使用的空气的流量来降低空气流量的第二过程通过调节废气的一部分的再循环流量或从高纯度氧制造装置供给的氧气的流量，同时增加再循环气体的流量比或高纯度氧的比例，易感气体最终转化为包括再循环气体或包括高纯度氧气在内的气体作为其主要成分的气体，以及将主要燃料从油滴或可燃气体切换到煤的第三种方法。版权所有（C）2011，JPO＆INPIT

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