Patents by Inventor Kouichi Hiraoka
Kouichi Hiraoka has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 12057766Abstract: A control unit is provided with a step-down unit which causes a system voltage of each phase of a system to step down, a voltage pulse signal generation unit which generates a voltage pulse signal of each phase that was stepped down by the step-down unit, a current pulse signal generation unit which generates a current pulse signal of each phase of the system, a zero crossing point detection unit which outputs time information of a zero crossing point of the system voltage and the system current of each phase based on the voltage pulse signal and the current pulse signal of each phase of the system, and an arithmetic unit which calculates, respectively, a value of active power and a value of reactive power of AC power output by the power conditioner to the system based on the time information of the zero crossing point of the system voltage and the system current of each phase of the system provided from the zero crossing point detection unit, and thereby controls the power conditioner.Type: GrantFiled: March 17, 2020Date of Patent: August 6, 2024Assignee: IKS Co., Ltd.Inventors: Takamasa Yamazaki, Kouichi Hiraoka, Kazuhito Sasaki, Makoto Miyata, Takashi Imai, Hideaki Abumi, Takao Goto
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Patent number: 11749996Abstract: An aggregation control system for adjusting electric power between a plurality of facilities via a mobile storage battery apparatus, wherein each of the plurality of facilities includes a control apparatus that controls charging and discharging of the mobile storage battery apparatus, and the aggregation control system includes a server apparatus coupled to each control apparatus; and wherein the server apparatus: creates a charge-discharge condition for the mobile storage battery apparatus on the basis of management information for electric power demand and supply at a specified facility among the plurality of facilities; compares a charge-discharge request to a control apparatus of the specified facility with the charge-discharge conditions; and issues a command to the control apparatus to charge or discharge the mobile storage battery apparatus according to a result of the comparison.Type: GrantFiled: February 28, 2018Date of Patent: September 5, 2023Assignee: HITACHI, LTD.Inventors: Makoto Miyata, Takahiro Tsukishima, Mitsumasa Takayama, Kouichi Hiraoka, Hideki Kobayashi
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Publication number: 20230179083Abstract: A control unit is provided with a step-down unit which causes a system voltage of each phase of a system to step down, a voltage pulse signal generation unit which generates a voltage pulse signal of each phase that was stepped down by the step-down unit, a current pulse signal generation unit which generates a current pulse signal of each phase of the system, a zero crossing point detection unit which outputs time information of a zero crossing point of the system voltage and the system current of each phase based on the voltage pulse signal and the current pulse signal of each phase of the system, and an arithmetic unit which calculates, respectively, a value of active power and a value of reactive power of AC power output by the power conditioner to the system based on the time information of the zero crossing point of the system voltage and the system current of each phase of the system provided from the zero crossing point detection unit, and thereby controls the power conditioner.Type: ApplicationFiled: March 17, 2020Publication date: June 8, 2023Inventors: Takamasa YAMAZAKI, Kouichi HIRAOKA, Kazuhito SASAKI, Makoto MIYATA, Takashi IMAI, Hideaki ABUMI, Takao GOTO
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Patent number: 10727784Abstract: In an aggregation system comprising a control apparatus which is provided for each consumer and a server apparatus, the server apparatus calculates, for each of the consumers and as an allocation amount of the consumer, an upper limit value for the power which the consumer inputs from the system or a lower limit value for the power which the consumer is to output to the system, according to a requested power provision amount, and sends the respective control instructions designating the calculated allocation amount of each consumer to the control apparatus of the consumer, and the control apparatuses each control the charging and discharging of the corresponding power apparatus so that the power input from the system is equal to or smaller than the allocation amount designated in the control instruction or so that power equal to or larger than the allocation amount is output to the system.Type: GrantFiled: August 23, 2017Date of Patent: July 28, 2020Assignees: HITACHI, LTD., IKS CO., LTD.Inventors: Hideki Kobayashi, Kouichi Hiraoka, Mitsumasa Takayama, Jun Takahashi, Yuji Fujiki, Takashi Imai
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Publication number: 20200073427Abstract: A hybrid power conditioning system manages, as a control target, a plurality of electric power units having different response speeds of charge or discharge, and respectively controls a charge or a discharge of the control target and an input/output of power, to and from a system, based on the charge or the discharge of the control target. A server apparatus generates a control order related to a demand response to the hybrid power conditioning system and calculates an allocation amount of each of the users according to at least an amount of power to be procured. The control order includes the calculated allocation amount and a control mode prescribing a discharge source or a charge destination when a triggering condition is satisfied. Upon receiving the control order, each of the hybrid power conditioning systems activates the control targets in order from the control target having a fastest response speed.Type: ApplicationFiled: March 19, 2018Publication date: March 5, 2020Inventors: Hideki KOBAYASHI, Mitsumasa TAKAYAMA, Kouichi HIRAOKA, Yuji FUJIKI, Takashi IMAI
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Publication number: 20200006954Abstract: An aggregation control system for adjusting electric power between a plurality of facilities via a mobile storage battery apparatus, wherein each of the plurality of facilities includes a control apparatus that controls charging and discharging of the mobile storage battery apparatus, and the aggregation control system includes a server apparatus coupled to each control apparatus; and wherein the server apparatus: creates a charge-discharge condition for the mobile storage battery apparatus on the basis of management information for electric power demand and supply at a specified facility among the plurality of facilities; compares a charge-discharge request to a control apparatus of the specified facility with the charge-discharge conditions; and issues a command to the control apparatus to charge or discharge the mobile storage battery apparatus according to a result of the comparison.Type: ApplicationFiled: February 8, 2018Publication date: January 2, 2020Inventors: Makoto MIYATA, Takahiro TSUKISHIMA, Mitsumasa TAKAYAMA, Kouichi HIRAOKA, Hideki KOBAYASHI
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Publication number: 20190199129Abstract: In an aggregation system comprising a control apparatus which is provided for each consumer and a server apparatus, the server apparatus calculates, for each of the consumers and as an allocation amount of the consumer, an upper limit value for the power which the consumer inputs from the system or a lower limit value for the power which the consumer is to output to the system, according to a requested power provision amount, and sends the respective control instructions designating the calculated allocation amount of each consumer to the control apparatus of the consumer, and the control apparatuses each control the charging and discharging of the corresponding power apparatus so that the power input from the system is equal to or smaller than the allocation amount designated in the control instruction or so that power equal to or larger than the allocation amount is output to the system.Type: ApplicationFiled: August 23, 2017Publication date: June 27, 2019Inventors: Hideki KOBAYASHI, Kouichi HIRAOKA, Mitsumasa TAKAYAMA, Jun TAKAHASHI, Yuji FUJIKI, Takashi IMAI
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Patent number: 8000819Abstract: A manufacturing instruction evaluation support system includes a data reading part that reads a manufacturing instruction parameter group and manufacturing performance data corresponding thereto, a parameter sorting part that calculates a risk rate for each manufacturing instruction parameter configuring the manufacturing instruction parameter group and an average value of risk rates among the manufacturing instruction parameters to identify as available choices the manufacturing instruction parameters having the risk rates no greater than the average value, a parameter identifying part that calculates an explanatory variable selection reference value for the manufacturing instruction parameter group and the manufacturing instruction parameters of the available choices with the multiple regression analysis program to identify the manufacturing instruction parameter group or the manufacturing instruction parameters of the available choices having the greater calculated explanatory variable selection referenceType: GrantFiled: February 25, 2009Date of Patent: August 16, 2011Assignee: Hitachi, Ltd.Inventors: Shinichirou Hanawa, Isao Nakamura, Akiko Tadokoro, Atsunori Hotehama, Yukiko Yamamoto, Haruo Umeki, Akihiro Kondo, Youichi Hamamoto, Kouichi Hiraoka
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Publication number: 20090292384Abstract: A manufacturing instruction evaluation support system includes a data reading part that reads a manufacturing instruction parameter group and manufacturing performance data corresponding thereto, a parameter sorting part that calculates a risk rate for each manufacturing instruction parameter configuring the manufacturing instruction parameter group and an average value of risk rates among the manufacturing instruction parameters to identify as available choices the manufacturing instruction parameters having the risk rates no greater than the average value, a parameter identifying part that calculates an explanatory variable selection reference value for the manufacturing instruction parameter group and the manufacturing instruction parameters of the available choices with the multiple regression analysis program to identify the manufacturing instruction parameter group or the manufacturing instruction parameters of the available choices having the greater calculated explanatory variable selection referenceType: ApplicationFiled: February 25, 2009Publication date: November 26, 2009Inventors: Shinichirou Hanawa, Isao Nakamura, Akiko Tadokoro, Atsunori Hotehama, Yukiko Yamamoto, Haruo Umeki, Akihiro Kondo, Youichi Hamamoto, Kouichi Hiraoka