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1. 发明申请

US20190296551A1 REACTIVE POWER CONTROL DEVICE AND REACTIVE POWER CONTROL METHOD 审中-公开
公开(公告)号：US20190296551A1
公开(公告)日：2019-09-26
申请号：US16426559
申请日：2019-05-30
申请人： Kabushiki Kaisha Toshiba , Toshiba Energy Systems & Solutions Corporation
发明人： Shunsuke KAWACHI , Mami Mizutani , Tsutomu Tanno , Tatsuya Hashimoto
IPC分类号： H02J3/18 , H02J3/16 , G05F1/10
摘要： A reactive power control device includes a limit value deriver configured to derive a limit value of reactive power, which is output by one or a plurality of power conversion devices determined for system stabilization and control of a system voltage, on the basis of a voltage of a point other than a voltage control target, and a command value adjuster configured to adjust a reactive power command value for the one or plurality of power conversion devices on the basis of the limit value derived by the limit value deriver.

2. 发明授权

US10862304B2 Reactive power control device and reactive power control method 有权
公开(公告)号：US10862304B2
公开(公告)日：2020-12-08
申请号：US16426559
申请日：2019-05-30
申请人： Kabushiki Kaisha Toshiba , Toshiba Energy Systems & Solutions Corporation
发明人： Shunsuke Kawachi , Mami Mizutani , Tsutomu Tanno , Tatsuya Hashimoto
IPC分类号： G05F1/70 , H02J3/18 , H02J3/16
摘要： A reactive power control device includes a limit value deriver configured to derive a limit value of reactive power, which is output by one or a plurality of power conversion devices determined for system stabilization and control of a system voltage, on the basis of a voltage of a point other than a voltage control target, and a command value adjuster configured to adjust a reactive power command value for the one or plurality of power conversion devices on the basis of the limit value derived by the limit value deriver.

3. 发明授权

US11146064B2 Power supply system and control device 有权
公开(公告)号：US11146064B2
公开(公告)日：2021-10-12
申请号：US16702816
申请日：2019-12-04
申请人： Kabushiki Kaisha Toshiba , Toshiba Energy Systems & Solutions Corporation
发明人： Shunsuke Kawachi , Mami Mizutani , Tsutomu Tanno , Tatsuya Hashimoto , Yasuhiro Ogura , Ken Yabui
IPC分类号： H02J3/38 , H02M5/458 , H02J3/01 , H02M7/44
摘要： A power supply system includes a plurality of power conversion devices, a plurality of breakers, and a controller. The plurality of breakers are respectively connected to the plurality of power conversion devices and configured to perform switching of an electrical connection between the power conversion device and a power system, wherein the breaker switches an ON state and an OFF state. The controller is configured to control the breakers and switch connection states of the plurality of power conversion devices are switched, and the controller being configured to determine whether or not the connected breaker is in an ON state and electrically conducted to the power system and the number of the power conversion devices in a standby state reaches a predetermined number.

4. 发明授权

US11549987B2 Storage battery management device and method 有权
公开(公告)号：US11549987B2
公开(公告)日：2023-01-10
申请号：US17272285
申请日：2020-01-31
申请人： KABUSHIKI KAISHA TOSHIBA , Toshiba Energy Systems & Solutions Corporation
发明人： Makoto Ide , Masahiro Tohara , Mami Mizutani , Tomohiro Toyosaki , Tsutomu Tanno
IPC分类号： G01R31/367 , G01R31/389 , G01R31/392 , G01R31/3842 , G01R31/371 , H02J7/00 , H01M10/48
摘要： According to an embodiment, a storage battery management device includes: a memory configured to store therein storage battery characteristics of a storage battery unit as a storage battery characteristics table; and one or more processors coupled to the memory. The one or more processors are configured to: acquire the storage battery characteristics based on storage battery information output from the storage battery unit; update the storage battery characteristics table based on the acquired storage battery characteristics; and estimate SOC of the storage battery unit by referring to the updated storage battery characteristics table.

5. 发明授权

US10714937B2 Voltage reactive power control device and voltage reactive power control method 有权
公开(公告)号：US10714937B2
公开(公告)日：2020-07-14
申请号：US16081537
申请日：2016-03-04
申请人： KABUSHIKI KAISHA TOSHIBA , TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATION
发明人： Yoshio Ebata , Takenori Kobayashi , Yoko Kosaka , Tsutomu Tanno , Mami Mizutani , Masako Kiuchi
IPC分类号： H02J3/16 , H02J3/18 , H02J3/24 , H02J3/32 , H02J3/38 , H02J7/35 , G05F1/70
摘要： A voltage reactive power control device includes a bus voltage fluctuation extracting unit that extracts a bus voltage fluctuation from a voltage of a secondary-side bus, an RE component extracting unit that extracts a fluctuation component due to renewable energy power generation from the bus voltage fluctuation, a creating unit that creates a reactive power command value for suppressing the fluctuation component based on the bus voltage fluctuation component due to the renewable energy power generation extracted by the RE component extracting unit, and a control unit that executes the reactive power control on a battery system based on the reactive power command value. The RE component extracting unit extracts the fluctuation component due to the renewable energy power generation by eliminating the fluctuation components other than the fluctuation component due to the renewable energy power generation from the bus voltage fluctuation.

6. 发明授权

US10714936B2 System interconnecting facility 有权
公开(公告)号：US10714936B2
公开(公告)日：2020-07-14
申请号：US16079884
申请日：2016-02-25
申请人： Kabushiki Kaisha Toshiba , Toshiba Energy Systems & Solutions Corporation
发明人： Masayuki Kubota , Tsutomu Tanno , Mami Mizutani , Shinya Naoi , Masako Kiuchi , Midori Otsuki , Kazuyoshi Shimada
IPC分类号： H02J3/01 , H02J3/38 , G05B19/042
摘要： A system interconnecting facility is connected to a power system, and includes a plurality of power converters connected to the power system, a plurality of transformers provided between the power system and the power converters, a plurality of switches provided between the transformers and the power converters, and a controller that controls the opening and closing of the switch. The controller outputs, to the switches, open and close commands in so that the number of closed switches is out of a closed switch number range where a harmonic voltage of the system interconnecting facility increases, based on a harmonic voltage containing rate characteristic that is a relation between the number of closed switches and a harmonic voltage containing rate of the system interconnecting facility. The system interconnecting facility is capable of suppressing a harmonic voltage even if a circuit structure differs depending on a situation.

7. 发明授权

US10338152B2 Internal condition estimating system and estimating method 有权
公开(公告)号：US10338152B2
公开(公告)日：2019-07-02
申请号：US14842477
申请日：2015-09-01
申请人： Kabushiki Kaisha Toshiba
发明人： Makoto Ide , Masahiro Tohara , Mami Mizutani , Takenori Kobayashi , Tsutomu Tanno
IPC分类号： G01R31/36 , G01R31/388 , G01R31/396 , G01R31/3842 , G01R31/367
摘要： A method of estimating, as the charging rate of an electricity storage system, the internal condition of the electricity storage system including plural batteries, and an internal condition estimating system utilizing that method are provided. A voltage measuring unit 3 measures voltages of all batteries 1 configuring an electricity storage system block 2. A system cell voltage determining unit 5 determines a system cell voltage that will be a reference for an estimation of the SOC value of the electricity storage system block 2 based on the voltage value of the plural batteries 1 measured by the voltage measuring unit 3. The system cell voltage determining unit 5 obtains the system cell voltage by giving a weighting to the voltage value in accordance with the pre-calculated SOC value of the electricity storage system block 2. The system SOC estimating unit 6 estimates the SOC value of the electricity storage system block 2 based on the current flowing through the battery 1 and the system cell voltage.

8. 发明申请

US20160025814A1 INTERNAL CONDITION ESTIMATING SYSTEM AND ESTIMATING METHOD 审中-公开
标题翻译：内部评估系统和估算方法
公开(公告)号：US20160025814A1
公开(公告)日：2016-01-28
申请号：US14842477
申请日：2015-09-01
申请人： Kabushiki Kaisha Toshiba
发明人： Makoto Ide , Masahiro Tohara , Mami Mizutani , Takenori Kobayashi , Tsutomu Tanno
IPC分类号： G01R31/36
CPC分类号： G01R31/388 , G01R31/367 , G01R31/3842 , G01R31/396
摘要： A method of estimating, as the charging rate of an electricity storage system, the internal condition of the electricity storage system including plural batteries, and an internal condition estimating system utilizing that method are provided. A voltage measuring unit 3 measures voltages of all batteries 1 configuring an electricity storage system block 2. A system cell voltage determining unit 5 determines a system cell voltage that will be a reference for an estimation of the SOC value of the electricity storage system block 2 based on the voltage value of the plural batteries 1 measured by the voltage measuring unit 3. The system cell voltage determining unit 5 obtains the system cell voltage by giving a weighting to the voltage value in accordance with the pre-calculated SOC value of the electricity storage system block 2. The system SOC estimating unit 6 estimates the SOC value of the electricity storage system block 2 based on the current flowing through the battery 1 and the system cell voltage.
摘要翻译：作为蓄电系统的充电率，估计包括多个电池的蓄电系统的内部状况以及利用该方法的内部状况估计系统的方法。电压测量单元3测量构成蓄电系统块2的所有电池1的电压。系统单元电压确定单元5确定作为用于估计蓄电系统块2的SOC值的基准的系统单元电压基于由电压测量单元3测量的多个电池1的电压值。系统单元电压确定单元5通过根据预先计算的电力SOC值对电压值给予加权来获得系统单元电压存储系统块2.系统SOC估计单元6基于流过电池1的电流和系统单元电压来估计蓄电系统块2的SOC值。

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