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1.发明授权公开(公告)号：US11527966B2
公开(公告)日：2022-12-13
申请号：US17073605
申请日：2020-10-19
发明人： Yuusuke Kouno , Yoichi Morishima
IPC分类号： H02J3/42 , H02M7/537 , H02H7/122 , H02H3/353 , G01R23/15 , G01R19/25 , G01R19/165 , H02M1/00
摘要： An apparatus according to an embodiment includes a control circuit to control operations of an inverter and a switch. The control circuit judges whether or not a power system has a power failure, based on values of the system voltage and a frequency of the power system; and calculates a phase difference between a phase of the output voltage of the inverter and a phase of the system voltage and generate, by means of the phase difference, an output frequency pattern for changing a frequency of the output voltage of the inverter. The control circuit, when it is judged that the power system has recovered from the power failure, controls the inverter to change the frequency of the output voltage of the inverter in line with the output frequency pattern, and closes the switch after the phase difference becomes smaller than or equal to a threshold.
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公开(公告)号：US11923789B2
公开(公告)日：2024-03-05
申请号：US17901389
申请日：2022-09-01
发明人： Yuusuke Kouno , Yoichi Morishima
IPC分类号： H02M7/539
CPC分类号： H02M7/539
摘要： According to one embodiment, a power converter includes an inverter and a controller. The inverter operates in an interconnected operation mode in which a grid is connected to an electric load and an isolated operation mode in which the inverter is connected to the electric load, for generating power from a local power supply. The controller detects a frequency difference and a phase difference between an inverter output from the inverter and grid power. The controller calculates, based on the frequency difference and the phase difference, an output frequency pattern to be used for synchronizing the inverter output with the grid power. The controller controls, when switching from the isolated operation mode to the interconnected operation mode, a frequency of the inverter output based on the output frequency pattern.
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公开(公告)号：US10284094B2
公开(公告)日：2019-05-07
申请号：US15914630
申请日：2018-03-07
摘要： A circuit configured to, for each of values of output currents output from power conversion devices connected in parallel to one another and driven based on common ON signals applied to the power conversion devices, output a difference between the output current value and a reference value when a polarity of the output current value is positive, and output a difference between an absolute value of the output current value and an absolute value of the reference value when the polarity of the output current value is negative; and a circuit configured to output adjustment time signals each of which indicates an amount of a delay time of a rising timing or a falling timing of the ON signal, according to an output value of the output current difference calculation circuit.
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公开(公告)号：US20180262112A1
公开(公告)日：2018-09-13
申请号：US15914630
申请日：2018-03-07
CPC分类号： H02M3/1584 , H02M1/38 , H02M7/487 , H02M7/493 , H02M2001/0009
摘要： A circuit according to an embodiment includes a circuit configured to, for each of values of output currents output from power conversion devices connected in parallel to one another and driven based on common ON signals applied to the power conversion devices, output a difference between the output current value and a reference value when a polarity of the output current value is positive, and output a difference between an absolute value of the output current value and an absolute value of the reference value when the polarity of the output current value is negative; and a circuit configured to output adjustment time signals each of which indicates an amount of a delay time of a rising timing or a falling timing of the ON signal, according to an output value of the output current difference calculation circuit.
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公开(公告)号：US09946237B2
公开(公告)日：2018-04-17
申请号：US14631044
申请日：2015-02-25
发明人： Yasuyuki Nishibayashi , Masahiro Yamazaki , Yoichi Morishima , Ikuya Aoyama , Yusuke Doi , Fumiaki Kanayama , Noritaka Deguchi
CPC分类号： G05B15/02 , G06Q10/06 , H02J13/0006 , Y02B70/3216 , Y04S20/221
摘要： An energy management device includes a measurement manager and a communicator. The measurement manager manages energy information based on a physical quantity measured from at least one measurement object belonging to each of a plurality of energy types in a customer. The communicator communicates the energy information of each of the energy types to another device over a network.
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6.发明申请ENERGY MANAGEMENT DEVICE, ENERGY MANAGEMENT SYSTEM, AND ENERGY MANAGEMENT METHOD 有权能源管理设备，能源管理体系和能源管理方法公开(公告)号：US20150241896A1
公开(公告)日：2015-08-27
申请号：US14631044
申请日：2015-02-25
发明人： Yasuyuki Nishibayashi , Masahiro Yamazaki , Yoichi Morishima , Ikuya Aoyama , Yusuke Doi , Fumiaki Kanayama , Noritaka Deguchi
CPC分类号： G05B15/02 , G06Q10/06 , H02J13/0006 , Y02B70/3216 , Y04S20/221
摘要： An energy management device includes a measurement manager and a communicator. The measurement manager manages energy information based on a physical quantity measured from at least one measurement object belonging to each of a plurality of energy types in a customer. The communicator communicates the energy information of each of the energy types to another device over a network.
摘要翻译： 能量管理装置包括测量管理器和通信器。 测量管理器基于从属于客户中的多个能量类型中的每一个的至少一个测量对象测量的物理量来管理能量信息。 通信器通过网络将每个能量类型的能量信息传送到另一个设备。
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公开(公告)号：US11539223B2
公开(公告)日：2022-12-27
申请号：US17001918
申请日：2020-08-25
发明人： Yukitaka Monden , Yoichi Morishima
摘要： A charging/discharging apparatus according to the present embodiment comprises first and second electrode terminals inputting or outputting direct-current power. First to third switching elements are connected in series between the first electrode and the second electrode. A first electric storage is connected in parallel to the second switching element located between the first switching element and the third switching element. A second electric storage is connected in parallel to the third switching element. First to third diodes are respectively connected in antiparallel to the first to third switching elements.
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公开(公告)号：US11258290B2
公开(公告)日：2022-02-22
申请号：US16998331
申请日：2020-08-20
发明人： Yukitaka Monden , Yoichi Morishima
摘要： A power supply apparatus includes a control circuit, and first and second power storage connected to a DC link circuit between an inverter and a converter. The control circuit, while the AC power supply is in a normal condition, controls the first power storage to discharge when the control circuit detects that electric power consumption exceeds a threshold, and controls at least one of the first and second power storage to charge when the control circuit detects that the electric power consumption does not exceed the threshold, and while the AC power supply is in an abnormal condition, controls the second power storage to discharge, and controls the first power to discharge when it is detected that the electric power consumption exceeds the threshold.
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公开(公告)号：US20210083487A1
公开(公告)日：2021-03-18
申请号：US17001918
申请日：2020-08-25
发明人： Yukitaka MONDEN , Yoichi Morishima
摘要： A charging/discharging apparatus according to the present embodiment comprises first and second electrode terminals inputting or outputting direct-current power. First to third switching elements are connected in series between the first electrode and the second electrode. A first electric storage is connected in parallel to the second switching element located between the first switching element and the third switching element. A second electric storage is connected in parallel to the third switching element. First to third diodes are respectively connected in antiparallel to the first to third switching elements.
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公开(公告)号：US09998029B2
公开(公告)日：2018-06-12
申请号：US15607799
申请日：2017-05-30
发明人： Yuusuke Kouno , Yoichi Morishima
CPC分类号： H02M7/493 , H02M2001/0009 , H02M2001/0025
摘要： According to one embodiment, an inverter including a detector which detects a value of an output voltage and a value of an output current; a command value input unit which is capable of receiving a current command value; a current command value compensating unit which, when the value of the output voltage detected by the detector is equal to or lower than a predetermined value, computes a compensation current value for compensating the current command value; an adder which adds the compensation current value to the current command value and outputs the compensated current command value; and a current controller which computes a voltage command value so that a difference between the compensated current command value and the output current detected by the detector becomes zero.
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