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1. 发明申请

US20230057522A1 MOTOR CONTROL DEVICE 有权
公开(公告)号：US20230057522A1
公开(公告)日：2023-02-23
申请号：US17796682
申请日：2020-03-04
申请人： Mitsubishi Electric Corporation , JAPAN AEROSPACE EXPLORATION AGENCY
发明人： Kenji FUJIWARA , Hisatoshi FUKUMOTO , Tomoki TAKEGAMI , Tetsuya KOJIMA , Akihiko IWATA , Masahiro SUGAHARA , Hiroshi KOBAYASHI , Mari NISHIYAMA , Akira NISHIZAWA
IPC分类号： H02P27/06 , H02K11/33 , H02M3/158 , B60L50/52 , H02M7/537
摘要： A motor control device includes: a step-down device including a DC-output power conversion device having a first mode for outputting first voltage and a second mode for outputting second voltage lower than the first voltage; a power supply device; and a control device, and controls a motor. When a flying object takes off, the control device controls the power conversion device in the first mode. When the control device judges that flight information which is one or both of information of a motor parameter obtained along with control for the motor and information of an environmental factor relevant to the flight altitude of satisfies a predetermined condition, or when the control device has received an mode signal for which the second mode is selected on the basis of the flight information during control for the motor, the control device controls the power conversion device in the second mode.

2. 发明申请

US20230084424A1 MOTOR CONTROL DEVICE 有权
公开(公告)号：US20230084424A1
公开(公告)日：2023-03-16
申请号：US17798563
申请日：2020-03-04
申请人： Mitsubishi Electric Corporation , JAPAN AEROSPACE EXPLORATION AGENCY
发明人： Kenji FUJIWARA , Hisatoshi FUKUMOTO , Tomoki TAKEGAMI , Tetsuya KOJIMA , Akihiko IWATA , Masahiro SUGAHARA , Hiroshi KOBAYASHI , Mari NISHIYAMA , Akira NISHIZAWA
IPC分类号： H02P27/06 , H02M7/539 , B64C39/02 , B64D31/00
摘要： A motor control device includes: a power source device including a DC-output power conversion device having a first mode for outputting first voltage and a second mode for outputting second voltage higher than the first voltage; a power supply device; and a control device, and controls a motor. When a flying object takes off, the control device controls the power conversion device in the second mode. When the control device judges that flight information which is one or both of information of a motor parameter obtained along with control for the motor and information of an environmental factor relevant to the flight altitude satisfies a predetermined condition, or when the control device has received an operation mode signal for which the first mode is selected on the basis of the flight information during control for the motor, the control device controls the power conversion device in the first mode.

3. 发明申请

US20170038431A1 DEVICE AND METHOD FOR ESTIMATING REMAINING BATTERY CAPACITY 有权
标题翻译：用于估算剩余电池容量的装置和方法
公开(公告)号：US20170038431A1
公开(公告)日：2017-02-09
申请号：US15305284
申请日：2015-02-05
申请人： MITSUBISHI ELECTRIC CORPORATION
发明人： Toshihiro WADA , Hisatoshi FUKUMOTO , Hiroto NISHIGUCHI
IPC分类号： G01R31/36 , G01R19/165
CPC分类号： G01R31/3606 , G01R19/165 , G01R31/36 , G01R31/3624 , G01R31/3651 , G01R31/3679 , H01M10/48 , H02J7/00 , H02J7/0021 , H02J2007/005
摘要： This invention is concerning a device including a current calculator that calculates remaining capacity difference current on the basis of a first remaining battery capacity reflected on open-circuit voltage of a battery and a second remaining battery capacity not reflected on the open-circuit voltage, a first remaining capacity estimator that estimates the first remaining battery capacity on the basis of a value produced by removing the remaining capacity difference current from the current value of the battery and the inter-terminal voltage of the battery, a second remaining capacity calculator that calculates the second remaining battery capacity by adding up the remaining capacity difference current, and an adder that obtains a remaining battery capacity of the battery by adding the estimate of the first remaining battery capacity and the calculation value of the second remaining battery capacity. The current calculator calculates the remaining capacity difference current so that the first remaining battery capacity and the second remaining battery capacity have a prescribed potential difference.
摘要翻译：本发明涉及一种包括电流计算器的装置，该电流计算器基于反映在电池的开路电压上的第一剩余电池容量和未反映在开路电压上的第二剩余电池容量来计算剩余容量差电流，第一剩余容量估计器，其基于通过从电池的当前值和电池的端子间电压去除剩余容量差电流产生的值来估计第一剩余电池容量，第二剩余容量计算器，其计算通过相加剩余容量差电流而获得第二剩余电池容量，以及加法器，通过将第一剩余电池容量的估计和第二剩余电池容量的计算值相加来获得电池的剩余电池容量。电流计算器计算剩余容量差电流，使得第一剩余电池容量和第二剩余电池容量具有规定的电位差。

4. 发明申请

US20220255457A1 POWER CONVERTER 有权
公开(公告)号：US20220255457A1
公开(公告)日：2022-08-11
申请号：US17609405
申请日：2019-06-25
申请人： Mitsubishi Electric Corporation
发明人： Tetsuya KOJIMA , Hisatoshi FUKUMOTO , Kenji FUJIWARA , Akihiko IWATA
IPC分类号： H02M7/487 , H02M7/49 , H02M7/537 , H02M1/32
摘要： A power converter includes an inverter circuit connected between the positive and negative terminals of a DC power supply, three single-phase bridge circuits each connected in series between an AC terminal of one of different phases of the inverter circuit and a motor, and a power conversion controller that generates gate signals to control operations of the inverter circuit and the three single-phase bridge circuits based on phase voltage commands. When a semiconductor switching element of the single-phase bridge circuits fails, the power conversion controller sets the output voltage of the single-phase bridge circuit of a phase to which the faulty semiconductor switching element belongs to zero to continue operation.

5. 发明申请

US20220131476A1 POWER CONVERSION DEVICE 有权
公开(公告)号：US20220131476A1
公开(公告)日：2022-04-28
申请号：US17424899
申请日：2019-02-14
申请人： Mitsubishi Electric Corporation
发明人： Masahiro SUGAHARA , Kenji FUJIWARA , Akihiko IWATA , Hisatoshi FUKUMOTO
IPC分类号： H02M7/483 , H02M1/44 , H02M7/5395
摘要： A three-phase multilevel inverter is connected to a first direct-current voltage source having a first voltage. Single-phase inverters are each connected in series to a corresponding phase of the three-phase multilevel inverter, and include a second direct-current voltage source, respectively, each having a second voltage. Combined output voltages, which are combinations of boost voltages generated by the three single-phase inverters and output voltages of the three-phase multilevel inverter, are supplied to a load. The control device adjusts a common mode voltage of the combined output voltages to be within a predetermined allowable range, and variation ranges of the line voltages in the combined output voltages to satisfy a specified condition established with the second voltage as a reference.

6. 发明申请

US20170010327A1 SOC ESTIMATION DEVICE FOR SECONDARY BATTERY 审中-公开
标题翻译：用于二次电池的SOC估计装置
公开(公告)号：US20170010327A1
公开(公告)日：2017-01-12
申请号：US15115794
申请日：2014-11-28
申请人： MITSUBISHI ELECTRIC CORPORATION
发明人： Hiroto NISHIGUCHI , Hisatoshi FUKUMOTO , Shingo YAMAGUCHI
IPC分类号： G01R31/36
CPC分类号： G01R31/362 , G01R31/3624 , G01R31/3651 , G01R31/3679 , G01R31/44 , H02J2007/005
摘要： A State of Charge (SOC) estimation device for a secondary battery in which a correlation curve indicating a relationship between an SOC and Open Circuit Voltage (OCV) differs between a charging process and discharging process. The SOC estimation device estimates the SOC based on a relational formula in which as actually measured OCV increases, weights are assigned to the correlation curve indicating the relationship between the SOC and OCV in the discharging process, and as actually measured OCV decreases, weights are assigned to the correlation curve indicating the relationship between the SOC and OCV in the charging process. With the SOC estimation device, when the correlation curve indicating the relationship between the SOC and OCV differs between the charging and discharging processes, not only when the secondary battery is being used but also when use is started after use of the secondary battery is stopped, SOC can be accurately estimated.
摘要翻译：在充电处理和放电处理之间，表示SOC与开路电压（OCV）的关系的相关曲线不同的二次电池的充电状态（SOC）估计装置。 SOC估计装置基于关系式估计SOC，其中随着实际测量的OCV增加，权重被分配给表示放电过程中的SOC和OCV之间的关系的相关曲线，并且当实际测量的OCV减小时，分配权重指示充电过程中SOC和OCV之间的关系的相关曲线。利用SOC估计装置，当充电和放电过程之间表示SOC与OCV之间的关系的相关曲线在充电和放电过程之间不同时，不仅在使用二次电池时，而且在使用二次电池之后停止使用时， SOC可以准确估计。

7. 发明公开

US20230361680A1 POWER CONVERSION DEVICE 审中-公开
公开(公告)号：US20230361680A1
公开(公告)日：2023-11-09
申请号：US17785913
申请日：2020-01-28
申请人： Mitsubishi Electric Corporation
发明人： Kenji FUJIWARA , Akihiko IWATA , Hisatoshi FUKUMOTO
IPC分类号： H02M3/158 , H02M1/088 , H02M1/14
CPC分类号： H02M3/1584 , H02M1/088 , H02M1/14
摘要： For connected-in-parallel N DC-DC converters (1 to N, where N is 3 or more), a first converter group on which PWM switching is performed with a first carrier, and a second converter group on which PWM switching is performed with a second carrier having a phase different from that of the first carrier, are provided. One or more of the DC-DC converters (1 to N) are assigned to each converter group. A plurality of drive modes in which the number of the DC-DC converters that are driven and the converter groups are set, are provided. The drive modes are switched through comparison between a preset threshold value and a total output of the N DC-DC converters (1 to N), and a ratio between total outputs in the first and second converter groups is set to fall within a predetermined range.

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