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公开(公告)号：US09343986B2
公开(公告)日：2016-05-17
申请号：US14156851
申请日：2014-01-16
Applicant: DENSO CORPORATION , NIPPON SOKEN, INC.
Inventor： Norihito Kimura , Hideki Itou , Yuji Hayashi
CPC classification number: H02M3/3376 , H02M3/33507
Abstract: In a power converter, a driver drives a switching element using a manipulated variable therefor to convert input power into output power. A first measuring unit measures a value of a first electric parameter depending on the input power. A first determiner determines, from the measured value of the first electric parameter, a first feedback controlled variable. A second measuring unit measures a value of a second electric parameter indicative of the output power, and a calculator calculates, based on the measured value of the second electric parameter and a command value for the second electric parameter, a second feedback controlled variable. A selector selects, based on the measured value of the first electric parameter, one of the first feedback controlled variable and the second feedback controlled variable. A second determiner determines the manipulated variable using the selected one of the first and second feedback controlled variables.
Abstract translation: 在功率转换器中，驱动器使用操纵变量来驱动开关元件，以将输入功率转换为输出功率。 第一测量单元根据输入功率来测量第一电参数的值。 第一确定器根据第一电参数的测量值确定第一反馈控制变量。 第二测量单元测量表示输出功率的第二电参数的值，并且计算器基于第二电参数的测量值和第二电参数的命令值计算第二反馈控制变量。 选择器基于第一电参数的测量值选择第一反馈控制变量和第二反馈控制变量之一。 第二确定器使用所选择的第一和第二反馈控制变量中的一个确定操纵变量。
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公开(公告)号：US09160238B2
公开(公告)日：2015-10-13
申请号：US14160704
申请日：2014-01-22
Applicant: DENSO CORPORATION
Inventor： Hideki Itou , Norihito Kimura , Yuji Hayashi
IPC: H02M3/335 , H02M7/5387 , H02M3/156
CPC classification number: H02M3/33507 , H02M3/156 , H02M7/53871
Abstract: In a power converter, a deviation calculator calculates, in each cycle, a deviation between a value of an input electrical parameter of a switch circuit and a target value selected by a selector in a previous cycle. The input electrical parameter depends on the input power to the switch circuit. A second calculator calculates, in each cycle, a value of a second feedback controlled variable such that the value of the second feedback variable approaches the value of the input electrical parameter. A controller controls, in each cycle, the selector to select one of the value of the first feedback controlled variable and the value of the second feedback controlled variable as the target value for the next cycle according to the deviation calculated by the deviation calculator.
Abstract translation: 在功率转换器中，偏差计算器在每个周期中计算开关电路的输入电参数的值与由前一周期中的选择器选择的目标值之间的偏差。 输入电气参数取决于开关电路的输入功率。 第二计算器在每个周期中计算第二反馈控制变量的值，使得第二反馈变量的值接近输入电参数的值。 控制器在每个周期中控制选择器根据由偏差计算器计算出的偏差来选择第一反馈控制变量的值之一和第二反馈控制变量的值作为下一周期的目标值。
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公开(公告)号：US11791736B2
公开(公告)日：2023-10-17
申请号：US18078772
申请日：2022-12-09
Applicant: DENSO CORPORATION
Inventor： Shuji Kurauchi , Yuichi Handa , Seiji Iyasu , Yuji Hayashi
CPC classification number: H02M3/33584 , B60L8/003 , B60L50/60 , B60L53/22 , H02J7/02 , H02J7/35 , H02M3/33573 , H02M3/33576 , B60L2210/30 , B60L2210/40 , H02J2207/20 , H02J2310/48 , H02M1/009
Abstract: A power conversion apparatus connected to three or more voltage units, includes three or more power conversion circuits connected to respective units of the three or more voltage units; and a multiport transformer connected to the three or more power conversion circuits at mutually different ports, in which at least one voltage unit of the three or more voltage units is an electrical load.
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公开(公告)号：US11201545B2
公开(公告)日：2021-12-14
申请号：US16854408
申请日：2020-04-21
Applicant: DENSO CORPORATION
Inventor： Seiji Iyasu , Yuichi Handa , Yuji Hayashi , Kaoru Koketsu
IPC: H02M3/335
Abstract: A control device is applied to a power conversion system including a first power conversion device and a second power conversion device connected in parallel with a common power supply target. The control device acquires a load output including a load current or power to be supplied to the power supply target, and control operation of the first power conversion device and the second power conversion device based on at least any of a voltage parameter including any of an input voltage and an output voltage and the load output.
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公开(公告)号：US20190123661A1
公开(公告)日：2019-04-25
申请号：US16142642
申请日：2018-09-26
Applicant: Denso Corporation
Inventor： Seiji Iyasu , Yuji Hayashi , Yuichi Handa
Abstract: An electric power conversion device has an electric power converter and a control device. The control device adjusts an output voltage of the electric power converter to approach a first current flowing a first drive switch to an instruction current during a first period in which an input voltage supplied from an AC power source has a positive polarity, and adjusts the output voltage of the electric power converter to approach a second current flowing a second drive switch to the instruction current during a second period in which the input voltage supplied from the AC power source has a negative polarity. The control device operates a switch arranged in a second current sensor during the first period, and operates a switch arranged in a first current sensor during the second period.
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Patent Agency Ranking
公开(公告)号：US09577535B2
公开(公告)日：2017-02-21
申请号：US14176454
申请日：2014-02-10
Applicant: DENSO CORPORATION , NIPPON SOKEN, INC.
Inventor： Norihito Kimura , Kimikazu Nakamura , Yuji Hayashi
CPC classification number: H02M3/33507 , H02M2001/0041
Abstract: A power conversion apparatus includes a switch circuit which drives switching elements based on a control signal, a feedback section which performs feedback control, a signal output section which outputs the control signal based on a controlled variable of the feedback control, an output value detecting section which detects an output value outputted from the switch circuit, and an operation determining unit which has an operation stop determination section which determines whether to stop operation of the switching elements based on a rate of change of the output value, and an operation start determination section which determines whether to start operation of the switching elements based on the controlled variable.
Abstract translation: 电力转换装置包括：基于控制信号驱动开关元件的开关电路;执行反馈控制的反馈部;基于反馈控制的受控变量输出控制信号的信号输出部;输出值检测部; 其检测从开关电路输出的输出值，以及操作判定单元，其具有基于输出值的变化率决定是否停止开关元件的动作的动作停止判定部，以及操作开始判定部 其基于受控变量确定是否开始操作开关元件。
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公开(公告)号：US09343973B2
公开(公告)日：2016-05-17
申请号：US14149940
申请日：2014-01-08
Applicant: DENSO CORPORATION , NIPPON SOKEN, INC.
Inventor： Norihito Kimura , Kimikazu Nakamura , Yuji Hayashi
IPC: H02M3/335 , H02M1/44 , H02M3/337 , H02M7/5387 , H02M1/00
CPC classification number: H02M3/33507 , H02M1/44 , H02M3/3376 , H02M7/53871 , H02M2001/0035 , Y02B70/16
Abstract: A power conversion apparatus includes a switch circuit which activates switching elements on the basis of a control signal, a feedback means which performs feedback control, a signal output means which outputs the control signal on the basis of a control variable of the feedback control, and a mode switching means which controls switching operation of the switch circuit by switching an operation mode between a normal mode and an intermittent mode in which the number of operations is less than that in the normal mode. The mode switching means changes timing of switching from the normal mode to the intermittent mode, on the basis of either or both of a first detection value which is an input value inputted to the switch circuit and a second detection value which is an output value outputted from the switch circuit.
Abstract translation: 电力转换装置包括基于控制信号激活开关元件的开关电路，执行反馈控制的反馈装置，基于反馈控制的控制变量输出控制信号的信号输出装置，以及 模式切换装置，其通过切换操作次数小于正常模式的正常模式和间歇模式之间的操作模式来控制开关电路的切换操作。 模式切换装置根据作为输入到开关电路的输入值的第一检测值和作为输出的输出值的第二检测值的一个或两个，将从正常模式切换到间歇模式的定时 从开关电路。
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公开(公告)号：US20160118904A1
公开(公告)日：2016-04-28
申请号：US14887361
申请日：2015-10-20
Applicant: DENSO CORPORATION
Inventor： Satoru Yoshikawa , Yuji Hayashi , Masakazu Fukada , Tatsuya Murakami
IPC: H02M3/335
CPC classification number: H02M7/23 , H02M7/217 , H02M2001/007
Abstract: In a power conversion apparatus, an AC/DC conversion circuit part converts AC power supplied from an AC input and output part into DC power. A DC/DC conversion circuit part including a transformer converts the DC power supplied from the AC/DC conversion circuit part into AC power, converts converted AC power into DC power after voltage conversion by the transformer and outputs converted DC power to a DC input and output part. A smoothing capacitor is provided in a connection part between the AC/DC conversion circuit part and the DC/DC conversion circuit part to smooth a voltage at the connection part. A connection switchover part changes a maximum value of the AC voltage at the AC input and output part by switching over a connection state between the AC input and output part and an AC device.
Abstract translation: 在电力转换装置中，AC / DC转换电路部将从AC输入输出部提供的AC电力转换为DC电力。 包括变压器的DC / DC转换电路部分将从AC / DC转换电路部分提供的DC电力转换为AC电力，并且通过变压器将转换的AC电力转换成DC电压，并将转换的DC电力输出到DC输入端， 输出部分。 在AC / DC转换电路部分和DC / DC转换电路部分之间的连接部分提供平滑电容器，以平滑连接部分处的电压。 连接切换部通过切换交流输入输出部与交流装置之间的连接状态来改变交流输入输出部的交流电压的最大值。
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公开(公告)号：US11316434B2
公开(公告)日：2022-04-26
申请号：US16594123
申请日：2019-10-07
Applicant: DENSO CORPORATION
Inventor： Yoshiki Suzuki , Shuji Kurauchi , Yuichi Handa , Seiji Iyasu , Yuji Hayashi
Abstract: An electric power conversion apparatus includes a main DC-to-DC converter and an electric power conversion unit. The main DC-to-DC converter is configured to perform voltage conversion between a first-voltage section that operates at a first voltage and a second-voltage section that operates at a second voltage. The electric power conversion unit is connected with the first-voltage section and includes an electric power conversion section and an auxiliary DC-to-DC converter. The electric power conversion section is configured to perform electric power conversion between the first-voltage section and a third-voltage section that operates at a third voltage. The auxiliary DC-to-DC converter is connected in parallel with the main DC-to-DC converter. The auxiliary DC-to-DC converter shares a common configuration section with the electric power conversion section. The common configuration section is constituted of at least part of the electric power conversion section.
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公开(公告)号：US11245326B2
公开(公告)日：2022-02-08
申请号：US17073830
申请日：2020-10-19
Applicant: DENSO CORPORATION
Inventor： Seiji Iyasu , Yuji Hayashi , Yuichi Handa
Abstract: The control apparatus is used with the electrical power converter working to an inputted one of ac voltage and a terminal-to-terminal voltage at a capacitor into the other. The control apparatus calculates a sine-wave command value for a reactor current based on the ac voltage and an amplitude command value indicating an amplitude of the reactor current. The control apparatus also operates switches SW in peak-current mode control to bring the reactor current into agreement with a command value for the reactor current to which a current correction value is added. The control apparatus sets the current correction value to include a component of fluctuation in the terminal-to-terminal voltage at the capacitor based on the ac voltage Vac.
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