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公开(公告)号：US20210248481A1
公开(公告)日：2021-08-12
申请号：US16951088
申请日：2020-11-18
Applicant: Hitachi, Ltd.
Inventor： Tohru WATANABE , Masato UTSUMI , Ikuo SHIGEMORI , Tetsu ITO , Jun YAMAZAKI , Daisuke HAMABA , Hiroshi IIMURA
Abstract: An object of the invention is to provide a data processing system that can appropriately determine data to be used for identification of a prediction model. The data processing system that performs prediction using a prediction model, includes: a selection unit that selects data to be used for identification of a prediction model from a storage unit that stores data; and a processing unit that identifies the prediction model by using the data selected by the selection unit. The selection unit selects, from the storage unit, predetermined first data, and second data of a type and/or condition different from the first data, based on a branch condition of structure data of a structural prediction model.
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公开(公告)号：US20190147465A1
公开(公告)日：2019-05-16
申请号：US16099447
申请日：2017-03-23
Applicant: Hitachi, Ltd.
Inventor： Yoshihisa OKAMOTO , Tohru WATANABE , Masato UTSUMI , Ikuo SHIGEMORI , Hiroshi IIMURA , Nobuhiro GOTOUDA
Abstract: To improve a prediction accuracy of future demand. A demand prediction system includes a storage device and a processor which is connected to the storage device. The processor is configured to associate time-sequential load data of a resource demand of a plurality of consumers in a consumer set to a plurality of groups, and the storage device is configured to acquire demand pattern data indicating a shape representing the load data in each group and the number of consumers belonging to each group, and calculate shape data indicating a shape of the time-sequential load data of the demand of the consumer set in a predetermined prediction target period on the basis of a record value of the demand pattern data of each group and a record value of the number of consumers of each group.
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公开(公告)号：US20170018038A1
公开(公告)日：2017-01-19
申请号：US15123746
申请日：2015-03-06
Applicant: HITACHI, LTD.
Inventor： Tohru WATANABE , Kouichirou IIJIMA , Yu IKEMOTO , Youichirou MORITA , Mitsuyoshi KONDO
Abstract: Proposed is a data analyzing system and method capable of performing highly reliable analytical processing which matches the actual situation. In a data analyzing device and method in which load data is classified into a plurality of clusters in consumer units based on the load data representing the power usage of each consumer for each unit time and the attribute information of each consumer, a diagnostic decision tree is generated for classifying the consumer into one of the clusters based on the attribute information of that consumer.
Abstract translation: 提出了能够进行与实际情况相匹配的高可靠性分析处理的数据分析系统和方法。 在数据分析装置和方法中，基于表示每个单位时间的每个消费者的电力使用的负载数据和每个消费者的属性信息，将消费者单位中的负载数据分类为多个集群，诊断决策树为 生成用于基于该消费者的属性信息将消费者分类为其中一个集群。
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4.发明公开公开(公告)号：US20230327440A1
公开(公告)日：2023-10-12
申请号：US18024511
申请日：2021-09-08
Applicant: HITACHI, LTD.
Inventor： Tohru WATANABE , Masato UTSUMI , Ikuo SHIGEMORI , Hiroshi IIMURA , Hiroaki OGAWA , Daisuke HAMABA
CPC classification number: H02J3/004 , G06Q50/06 , H02J3/003 , H02J2300/28 , H02J2203/10 , H02J2203/20 , H02J2300/22 , H02J3/381
Abstract: A system refers to actual weather data made publicly available by a first institution, and creates a model that uses a value of a weather element for each section as an input and uses a value of a renewable energy power generation amount of the area as an output based on the actual value of the weather element calculated for each section, and the actual value of the renewable energy power generation amount of the area. The system refers to weather prediction data made publicly available by the second institution, and calculates an actual value of the weather element regarding each of the plurality of sections including the area based on a prediction value of the weather element for each segment in the corresponding section, and calculates a prediction value of the renewable energy power generation amount based on the prediction value of the weather element for each section.
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公开(公告)号：US20190252880A1
公开(公告)日：2019-08-15
申请号：US16331700
申请日：2018-03-19
Applicant: Hitachi, Ltd.
Inventor： Tohru WATANABE , Masato UTSUMI , Yu IKEMOTO , Yoshihisa OKAMOTO , Ikuo SHIGEMORI , Hiroshi IIMURA , Hiroaki OGAWA
CPC classification number: H02J3/008 , G06Q10/06312 , G06Q10/06315 , G06Q50/06
Abstract: A trading planning apparatus includes an order quantity planning section determining trading quantities with a plurality of trade connections from a trading cumulative quantity and estimated data about future quantities related to demand and the trade connections, a split-time-based split order planning section generating trading and ordering data containing data about an order price or an order quantity related to trading and ordering in each of planned trading periods that are periods into which a trading period, during which trading can be conducted, is subdivided, and a future quantity estimation section estimating estimated quantities of data related to errors in the future quantities estimated from actual record values, the order quantity planning section increasing or reducing the trading quantity of any of the trade connections when a difference between a sum of the trading quantities of all of the trade connections and a future quantity demanded is equal to or greater than a predetermined value.
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Patent Agency Ranking
公开(公告)号：US20180128863A1
公开(公告)日：2018-05-10
申请号：US15574187
申请日：2016-05-09
Applicant: Hitachi, Ltd.
Inventor： Masato UTSUMI , Tohru WATANABE , Yu IKEMOTO , Youko SAKIKUBO , Ikuo SHIGEMORI , Hiroaki OGAWA
CPC classification number: G01R21/008 , G06Q30/0202 , G06Q50/06 , H02J3/008 , H02J2003/003 , Y04S50/10 , Y04S50/14
Abstract: The invention is directed to predicting demand under circumstances in which continuous total contracted demand characteristics vary within a short time period. This energy demand predicting method is configured in such a way that sets of demand pattern generation data for each of one or more preset combinations of a contracted demand granularity and a time granularity are generated on the basis of actual energy demand information for a default historical period; a demand type is generated for each set of demand pattern generation data; an energy demand at a default historical date and time is calculated as a predicted value for evaluation, for each demand type; a contracted demand granularity and a time granularity are determined on the basis of the predicted value for evaluation for each demand type and the actual energy demand information, in such a way as to minimize an error between an estimated value or a predicted value of energy demand at a historical date and time, and the actual observed value at said date and time; and the energy demand value at an arbitrarily defined date and time is estimated or predicted on the basis of the determined results.
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7.发明申请POWER DEMAND ADJUSTMENT SYSTEM, POWER DEMAND ADJUSTMENT METHOD, AND POWER ADJUSTMENT APPARATUS 审中-公开动力需求调整系统，动力需求调整方法及动力调整装置公开(公告)号：US20150100175A1
公开(公告)日：2015-04-09
申请号：US14507038
申请日：2014-10-06
Applicant: HITACHI, LTD.
Inventor： Yasuhiro KAWAI , Tohru WATANABE , Masato UTSUMI
IPC: G05F1/10
CPC classification number: G05F1/10 , G06Q50/06 , H02J3/12 , H02J3/14 , H02J2003/007 , Y02B70/3225 , Y04S20/222
Abstract: A voltage control apparatus controls a voltage value of power that is supplied to a consumer from either a distribution substation or a pole-mounted transformer. A power management apparatus calculates an adjustable amount of demand for enabling power demand from a plurality of consumers to be adjusted, and sends the adjustable amount of demand to a demand adjustment plan management apparatus. The demand adjustment plan management apparatus prepares a demand adjustment plan for satisfying a request value for the amount of demand adjustment, and sends the demand adjustment plan to the power management apparatus. The power management apparatus, on the basis of the demand adjustment plan, prepares a voltage control plan for controlling the output voltage value of the voltage control apparatus, and causes the output voltage value of the voltage control apparatus to be controlled in accordance with the voltage control plan.
Abstract translation: 电压控制装置从分配变电站或极点安装的变压器控制向消费者提供的电力的电压值。 电力管理装置计算能够调整来自多个消费者的电力需求的可调量的需求量，并将可调整量的需求发送到需求调整计划管理装置。 需求调整计划管理装置准备满足需求调整量的请求值的需求调整计划，并将需求调整计划发送到电力管理装置。 电力管理装置根据需求调整方案，准备用于控制电压控制装置的输出电压值的电压控制计划，并根据电压来控制电压控制装置的输出电压值 控制方案。
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公开(公告)号：US20190355070A1
公开(公告)日：2019-11-21
申请号：US16295765
申请日：2019-03-07
Applicant: Hitachi, Ltd.
Inventor： Yu IKEMOTO , Masato UTSUMI , Tohru WATANABE , Ikuo SHIGEMORI
Abstract: According to one embodiment, a power plan supporting apparatus provided for planning a power plan based on time series data regarding the power plan includes a time series classification unit that classifies the time series data into a group of periods in which input conditions are same or similar to each other in an optimization of the power plan, a representative data determination unit that determines representative data for each group classified by the time series classification unit, and a period evaluation value estimation unit that calculates an evaluation value of all the periods by integrating the evaluation value for each representative data determined by the representative data determination unit.
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公开(公告)号：US20190303783A1
公开(公告)日：2019-10-03
申请号：US16307407
申请日：2017-05-16
Applicant: HITACHI, LTD.
Inventor： Masato UTSUMI , Tohru WATANABE , Ikuo SHIGEMORI , Youko SAKIKUBO , Toshiyuki SAWA , Hiroshi IIMURA , Hiroaki OGAWA , Yoshihisa OKAMOTO
Abstract: Provided is a data prediction system for predicting a future prediction value. The data prediction system has a data management device which manages data and a prediction operation device which models tendency of an error amount of a prediction operation result calculated on the basis of a correlation with a major explanatory variable and corrects a future prediction value. The data management device includes a storage unit which stores prediction target past measurement data observed with a time transition and explanatory factor data explaining the prediction target past measurement data. The prediction operation device includes a first prediction operation unit which performs prediction on the basis of a correlation between the prediction target past measurement data and the explanatory factor data, a second prediction operation unit which models tendency of an error of an operation result of the first prediction operation unit and performs future error amount prediction of the operation result of the first prediction operation unit, and a correction unit which corrects the operation result of the first prediction operation unit by an operation result of the second prediction operation unit.
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10.发明申请公开(公告)号：US20190279239A1
公开(公告)日：2019-09-12
申请号：US16335339
申请日：2018-02-01
Applicant: Hitachi, Ltd.
Inventor： Yu IKEMOTO , Tohru WATANABE , Masato UTSUMI , Yoshihisa OKAMOTO , Ikuo SHIGEMORI , Youko SAKIKUBO , Toshiyuki SAWA , Nobuhiro GOTOUDA , Hiroshi IIMURA
Abstract: The present invention is provided with: a player action prediction unit that predicts the action of a player and calculates a sales order information prediction value; a market physical restraint prediction unit that predicts the state of a power transfer path, which includes grid-connection line available capacity indicating excess transferred power between areas, and calculates a prediction value for the state of the power transport path; and a market prediction unit that predicts a market price on the basis of the sales order information prediction value and the prediction value for the power transfer path state.
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