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1. 发明专利

JP2014147246A Power conversion apparatus 审中-公开
标题翻译：功率转换装置
公开(公告)号：JP2014147246A
公开(公告)日：2014-08-14
申请号：JP2013015162
申请日：2013-01-30
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： SAIJO YOSHIHIKO , KIYOFUJI YASUHIRO , OGAWA SHINICHI , NAKATANI SHUNSUKE
IPC分类号： H02M7/493 , H02M7/48
摘要： PROBLEM TO BE SOLVED: To provide a power conversion apparatus capable of simplifying configurations of a circuit and a control system and highly precisely conducting electric current with a large change width by reducing switching loss.SOLUTION: The power conversion apparatus includes: a plurality of first series circuits comprised of semiconductor elements connected in series between DC power supplies, and a second series circuit comprised of mechanical switches connected in series between the DC power supplies, and supplies electric power by connecting a load between a common connection point with which connection points of the plurality of first series circuits are connected in common, and a connection point of the second series circuit.
摘要翻译：要解决的问题：提供一种电力转换装置，其能够通过减少开关损耗来简化电路和控制系统的配置以及大的变化宽度的高精度导通电流。解决方案：电力转换装置包括：多个第一由在直流电源之间串联连接的半导体元件的串联电路以及由直流电源串联连接的机械开关构成的第二串联电路，并且通过将负载连接到公共连接点，多个第一串联电路共同连接，第二串联电路的连接点。

2. 发明专利

JP2014117993A Power converter and method for controlling power converter 有权
标题翻译：电源转换器及控制电源转换器的方法
公开(公告)号：JP2014117993A
公开(公告)日：2014-06-30
申请号：JP2012273156
申请日：2012-12-14
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： NAKATSUKA YASUHIRO , IMAZU YASUHIRO , MAOKA AKIHIRO , ICHINOSE MASAYA , KIYOFUJI YASUHIRO , BANDO AKIRA
IPC分类号： B60M3/06 , H02J3/06 , H02J3/32 , H02J3/36
CPC分类号： H02J3/32
摘要： PROBLEM TO BE SOLVED: To provide a power converter in which an electric motor accommodates and utilizes regenerated power.SOLUTION: A power converter 1 comprises plural power conversion units 14-1, 14-2 which are respectively connected to different feeding wires 2, a direct current accommodation unit 17 wich is connected to respective power conversion units 14-1, 14-2 and also connected to a secondary battery 16, and a power control unit 11. The power control unit 11 sends commands to the regeneration side power conversion unit 14 which is connected to the regeneration side feeding wire 2 and to the consumption side power conversion unit 14 which is connected to the consumption side feeding wire 2 so as to output electric power from the regeneration side feeding wire 2 to the consumption side feeding wire 2 via the direct current accommodation unit 17, and determines a voltage at the direct current accommodation unit 17 in such a manner that energy according to the sum of the regeneration power and the consumption power is inputted to and outputted from the secondary battery 16.
摘要翻译：要解决的问题：提供电动机容纳并利用再生电力的电力转换器。解决方案：功率转换器1包括分别连接到不同馈线2的多个功率转换单元14-1,14-2，直流调节单元17连接到各个电力转换单元14-1,14-2，并且还连接到二次电池16和电力控制单元11.功率控制单元11向再生侧电力转换单元发送命令 14连接到再生侧供电线2和与消耗侧供电线2连接的消耗侧电力转换单元14，以将电力从再生侧供电线2输出到消耗侧供电线2 通过直流调节单元17，以这样的方式确定直流调节单元17处的电压，使得根据再生器总和的能量离子功率和消耗功率被输入到二次电池16并从二次电池16输出。

3. 发明专利

JP2011055569A Secondary excitation generator and secondary excitation variable speed generator motor 有权
标题翻译：二次发电机和二次发电变速发电机电机
公开(公告)号：JP2011055569A
公开(公告)日：2011-03-17
申请号：JP2009199193
申请日：2009-08-31
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： BANDO AKIRA , ICHINOSE MASAYA , KIYOFUJI YASUHIRO , NAKAYAMA YASUAKI
IPC分类号： H02P9/14 , H02P9/00
摘要： PROBLEM TO BE SOLVED: To resume secondary excitation control operation by minimizing current rating of a self arc-extinguishing element used for a secondary excitation power converter and minimizing a period when excitation control stops in failure of a system without short-circuiting a bypass circuit of an excitation side circuit of a rotor of an AC generator motor. SOLUTION: An excitation overcurrent detector of the AC excitation generator motor has a function for determining the magnitude relation of a three-phase excitation current, an ignition pulse is fixed so that a DC capacitor is charged by diode operation by the maximum phase of current and second large phase, a third phase is protected from short circuit between terminals of the DC capacitor by controlling conduction rate in accordance with a current detection value, and if the voltage of the DC capacitor exceeds a set value, the voltage value is suppressed by an active element or a passive element. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：通过使用于二次励磁功率转换器的自灭弧元件的电流额定值最小化来实现二次励磁控制操作，并且使得在不使系统短路的情况下励磁控制停止的期间最小化交流发电机电机的转子的励磁侧电路的旁路电路。解决方案：交流励磁发电机的励磁过电流检测器具有确定三相励磁电流大小关系的功能，点火脉冲固定，直流电容通过二极管工作由最大相充电的电流和第二大相，通过根据电流检测值控制导通率来保护第三相的直流电容器的端子之间的短路，并且如果直流电容器的电压超过设定值，则电压值为被有源元件或无源元件抑制。版权所有（C）2011，JPO＆INPIT

4. 发明专利

JP2009077505A Electric-driven vehicle 有权
标题翻译：电动车
公开(公告)号：JP2009077505A
公开(公告)日：2009-04-09
申请号：JP2007243213
申请日：2007-09-20
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： KIKUCHI TERU , IKIMI TAKASHI , SASAKI MASAKI , SHIMADA KEIZO , SUGAWARA NAOSHI , FUJIMOTO TETSUHIRO , KIYOFUJI YASUHIRO
IPC分类号： B60L9/18 , B60L11/18
CPC分类号： Y02T10/7005
摘要： PROBLEM TO BE SOLVED: To provide an electric-driven vehicle capable of accurately detecting slippage of driving wheels without receiving an influence of a change in a wheel radius.
SOLUTION: The electric-driven vehicle is equipped with motors 1, 4 for driving or braking the wheels and a motor controller 33 for controlling the motors. The vehicle is further equipped with speed detectors 9, 10, 11, 12 for detecting the rotational speed of the driven wheels and the driving wheels of the vehicle, and with a slip determining device 18 computing the slip ratio of the driving wheels from the rotational speed detected value of the driven wheels and the driving wheels to determine whether the driving wheels are slipped or not. The slip determining device 18 is equipped with a means for detecting the wheel speed of the driven wheels and the driving wheels, using the wheel radius of the driven wheels and the driving wheels set in advance. The means for detecting the wheel speed adjusts the gain for computing the wheel speed detected value of the driven wheels or the wheel speed detected value of the driving wheels so that the wheel speed detected value of the driven wheels approaches the wheel speed detected value of the driving wheels in the state that the driving wheels are not slipped.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够准确地检测驱动轮的滑动而不受到轮半径变化的影响的电动车辆。
解决方案：电动车辆配备有用于驱动或制动车轮的电动机1,4和用于控制电动机的电动机控制器33。车辆还装备有用于检测从动轮和车辆的驱动轮的转速的速度检测器9,10,11,12，并且滑移确定装置18计算来自旋转的驱动轮的滑移比驱动轮和驱动轮的速度检测值，以确定驱动轮是否滑动。滑动判定装置18配备有用于使用预先设定的从动轮和驱动轮的车轮半径来检测从动轮和驱动轮的车轮速度的装置。用于检测车轮速度的装置调节用于计算从动轮的车轮速度检测值或驱动轮的车轮速度检测值的增益，使得从动轮的车轮速度检测值接近车轮速度检测值在驱动轮不滑动的状态下的驱动轮。版权所有（C）2009，JPO＆INPIT

5. 发明专利

JP2008141926A Home power storage device, on-vehicle power storage device, power supply/storage system and power storage control method 审中-公开
标题翻译：家用电力存储装置，车载蓄电装置，电源/存储系统和蓄电控制方法
公开(公告)号：JP2008141926A
公开(公告)日：2008-06-19
申请号：JP2006328247
申请日：2006-12-05
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： KIYOFUJI YASUHIRO , TOYODA MASASHI , FUKASAKU YOSHINORI , ICHINOSE MASAYA , FUTAMI MOTOO
IPC分类号： H02J3/32
摘要： PROBLEM TO BE SOLVED: To enable a power supplier to efficiently and rapidly react when a power supply frequency or a voltage must be adjusted. SOLUTION: This device is applied to an apparatus provided with a home power storage means charged with a commercial AC power supply from an electric power supplier or a self-power generator, and discharging power to a domestic load or an external load. A control means of the domestic power storage means ensures the capacity predetermined within a power storage capacity of the power storage means as a capacity chargeable and dischargeable based on a command from the electric power supplier. Under the above conditions, the electric power supplier detects the frequency of the commercial AC power supply, and transmits a charging command or a discharging command to homes each provided with a domestic power storage means when the detected power supply frequency must be adjusted. Upon receiving the charging command or discharging command, each home modifies the discharging current or charging current of the power storage means within the predetermined capacity of the power storage capacity of the power storage means. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了使电源供应商在必须调整电源频率或电压时有效快速地做出反应。解决方案：本装置适用于设置有从电力供应商或自发电机充电的商用交流电源的家用蓄电装置的设备，并将功率放电至家用负载或外部负载。家用蓄电装置的控制装置根据来自电力供给器的指令，确定在蓄电装置的蓄电容量内规定的能力作为可充放电的容量。在上述条件下，电力供应商检测商用交流电源的频率，并且当检测到的电源频率必须调整时，将充电指令或放电指令发送给设有家用蓄电装置的家庭。在接收到充电命令或放电命令时，每个家庭在电力存储装置的蓄电容量的预定容量内修改蓄电装置的放电电流或充电电流。版权所有（C）2008，JPO＆INPIT

6. 发明专利

JP2008141850A Uninterruptible power supply system, inverter circuit, and reactor panel 有权
标题翻译：不间断电源系统，逆变器电路和反应器面板
公开(公告)号：JP2008141850A
公开(公告)日：2008-06-19
申请号：JP2006325007
申请日：2006-11-30
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： IWANAKA MITSUFUMI , KIYOFUJI YASUHIRO , MIYATA HIROAKI , MEGURO HIKARI , KUNISADA HIDEAKI
IPC分类号： H02J3/38 , H02J9/06 , H02M7/493
摘要： PROBLEM TO BE SOLVED: To provide an uninterruptible power supply system where a new inverter can be turned on in parallel during operation of at least one or more inverters in a parallel redundant system. SOLUTION: A plurality of inverter circuits 12-1, 12-2, 12-3 is connected in parallel via the reactor L22 for parallel of a reactor panel 13. The inverter circuit 12-3 to be switched on later can not detect the bus voltage V0 from another reactor panel 13. Accordingly, it performs the control of making the phase of the inverter voltage Va3 of the inverter circuit 12-3 follow the phase of a corrected bus voltage, with the corrected bus voltage, where the amount of voltage drop of a current (a circulating current) Iloop for inverter sharing control by the reactor L22 for parallel is added to the pseudo bus voltage Vn3 of the power switch 23-3, as the reference voltage. Therefore, the inverter voltage Va3 becomes the same phase as the inverter voltage of the inverter circuit 12-1, and a cross current does not flow at parallel connection. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种不间断电源系统，其中在并联冗余系统中的至少一个或多个逆变器的运行期间可以并联打开新的逆变器。解决方案：多个逆变器电路12-1,12-2,12-3经由电抗器L22并联连接，用于并联于电抗器面板13.稍后接通的逆变器电路12-3不能从另一个电抗器面板13检测总线电压V0。因此，它执行使得逆变器电路12-3的逆变器电压Va3的相位跟随校正总线电压的相位的校正总线电压的控制，其中用于并联的电抗器L22的用于逆变器共享控制的电流（循环电流）Iloop的电压降作为参考电压被添加到电力开关23-3的伪总线电压Vn3。因此，逆变器电压Va3变为与逆变器电路12-1的逆变器电压相同的相位，交叉电流不并联连接。版权所有（C）2008，JPO＆INPIT

7. 发明专利

JP2015002564A 電力変換装置有权
标题翻译：电源转换器件
公开(公告)号：JP2015002564A
公开(公告)日：2015-01-05
申请号：JP2013124288
申请日：2013-06-13
申请人：株式会社日立製作所 , Hitachi Ltd
发明人： IGARASHI DAISUKE , KATO SHUJI , OCHI KENTARO , ONDA KENICHI , KIYOFUJI YASUHIRO , IMAZU YASUHIRO , HASHIMOTO ISAO , UMEDA KAZUNORI , SAKUCHI OSAMU
IPC分类号： H02M7/48 , H02M7/483
摘要：【課題】電力用半導体素子を4直列接続した3レベル変換器や素子を直列接続して高耐圧化を図った2レベル変換器の素子積層方向の配線インダクタンスを低減した電力変換装置を提供する。【解決手段】電力用半導体素子1−1、1−2を配列し、前記電力用半導体素子はスイッチング素子を含んだものであり、前記配列は、各々の電力用半導体素子を選択的に動作させることで第1の導体3と第2の導体4を電力貯蔵部2に接続可能となるように構成されるものであって、前記配列方向に沿って延びた導体板5を備え、前記電力用半導体素子1−1、1−2と、前記第1の導体3と前記第2の導体4とは絶縁されており、前記導体板5は、前記配列に近接配置されると共に、前記電力用半導体素子1−1、1−2の一部を覆うように設けられる構成とした。【選択図】図1
摘要翻译：要解决的问题：提供一种功率转换装置，其降低通过串联连接四个功率半导体器件或两级转换器形成的三电平转换器的元件层叠方向上的布线电感，通过连接元件来实现耐压性改善系列。解决方案：功率半导体器件1-1和1-2被排列，并且每个功率半导体器件包括开关元件。阵列被配置为通过选择性地操作功率半导体器件将第一导体3和第二导体4连接到电力存储部2，并且包括在阵列的方向上延伸的导体板5。功率半导体器件1-1和1-2与第一导体3和第二导体4绝缘，并且导体板5设置在阵列附近，以覆盖功率半导体器件1-1的一部分和1-2。

8. 发明专利

JP2012070537A Triggering method and device for power conversion device 审中-公开
标题翻译：用于功率转换器件的触发方法和装置
公开(公告)号：JP2012070537A
公开(公告)日：2012-04-05
申请号：JP2010213298
申请日：2010-09-24
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： MEGURO HIKARI , KIYOFUJI YASUHIRO , SHIOMI KEN , IWANAKA MITSUFUMI , ICHINOSE MASAYA
IPC分类号： H02M7/12
CPC分类号： Y02E10/56 , Y02E10/76
摘要： PROBLEM TO BE SOLVED: To provide a triggering method and a device for a power conversion device capable of precisely performing DC voltage response confirmation of a DC circuit at the time of triggering.SOLUTION: In the triggering device of a power conversion device, one end of a power converter is connected to an AC side while the other end is connected to a DC side, with a DC capacitor provided between DC side terminals. It includes initial charging means which applies an AC power source to the power converter for initially charging the DC capacitor, a control device which contains a voltage controller that performs integrating operation with a difference between DC voltage command and a measured DC voltage, for performing ignition angle control of the power converter, trigger operation means which increases the DC voltage command for the voltage controller on time base for triggering the power converter, response confirmation means which, during a trigger process by the trigger operation means, measures a voltage difference between the DC voltage command and the measured DC voltage or a time lag between the DC voltage command and the measured DC voltage, for confirming control response, and integration element excluding means which excludes an integration element of the control device during the period measurement is made by the response confirmation means, not to cause it to function.
摘要翻译：要解决的问题：提供一种能够在触发时精确地执行直流电路的直流电压响应确认的电力转换装置的触发方法和装置。解决方案：在电力转换装置的触发装置中，功率转换器的一端连接到AC侧，而另一端连接到DC侧，直流侧端子之间提供直流电容器。它包括初始充电装置，其将AC电源施加到功率转换器以初始对直流电容器充电;控制装置，其包含电压控制器，该电压控制器执行具有直流电压指令和测量直流电压之间的差异的积分运算，以进行点火电源转换器的角度控制，用于触发电力转换器的时基上增加电压控制器的直流电压指令的触发操作装置，响应确认装置，在触发操作装置的触发过程期间，测量电压转换器之间的电压差直流电压指令和测量的直流电压或直流电压指令与测量的直流电压之间的时间滞后，用于确认控制响应，以及在该周期测量期间不包括控制装置的积分元件的积分元件排除装置由响应确认手段，不使其发挥作用。版权所有（C）2012，JPO＆INPIT

9. 发明专利

JP2012016206A Method for detecting erroneous gate pulse wiring in power conversion apparatus 有权
标题翻译：用于检测功率转换装置中的错误门脉冲布线的方法
公开(公告)号：JP2012016206A
公开(公告)日：2012-01-19
申请号：JP2010151718
申请日：2010-07-02
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： SHIOMI KEN , KIYOFUJI YASUHIRO , MEGURO HIKARI , IWANAKA MITSUFUMI , IMAZU YASUHIRO , YAMASHITA KOJIRO , MABUCHI YUICHI , MIYAGAWA RYOHEI , KOBAYAKAWA YASUYUKI , ONO KOTARO , TOKUDA MASAYUKI , MINE KENTA
IPC分类号： H02M7/12 , H02M1/00 , H02M7/48
摘要： PROBLEM TO BE SOLVED: To provide a method for detecting erroneous gate pulse wiring in a power conversion apparatus, making it possible to detect erroneous voltage detection wiring and erroneous switching wiring of arms due to operator's misunderstanding.SOLUTION: The power conversion apparatus, composed of plural semiconductor elements, has one end connected to a three-phase alternating-current power supply and the other end serving as direct current terminals, with a direct-current capacitor connected between the direct current terminals, and is provided with wiring for gate pulses to be applied from a control unit to the semiconductor elements. At one end of the power conversion apparatus, capacitors are connected between lines or in star form, and a reduced voltage is applied for a prescribed time to charge the direct-current capacitor before a gate pulse is applied in prescribed plural patterns from the control unit to the semiconductor elements. The currents in each phase of the three-phase alternating-current power supply at the time of pulse application are detected, and the relationship between the semiconductor elements to which the gate pulse was applied in plural patterns and the currents in each phase of the three-phase alternating-current power supply at this time is stored in memory. From the relationship stored in memory when wiring for gate pulses to be applied from the control unit to the semiconductor elements was sound and the relationship newly stored in memory by following the same procedure described above, an error in the wring used to apply gate pulses may be detected.
摘要翻译：要解决的问题：为了提供一种用于检测电力转换装置中的错误的门脉冲布线的方法，由于操作者的误解，可以检测错误的电压检测布线和错误的臂的切换布线。解决方案：由多个半导体元件组成的电力转换装置的一端连接到三相交流电源，另一端用作直流端子，直流电容器连接在直流电源电流端子，并且设置有用于从控制单元施加到半导体元件的栅极脉冲的布线。在功率转换装置的一端，电容器连接在线路或星形之间，并且在从控制单元以规定的多个模式施加栅极脉冲之前，将降低的电压施加规定时间以对直流电容器充电到半导体元件。检测在施加脉冲时三相交流电源的每相中的电流，并且以多个模式施加栅极脉冲的半导体元件与三相的每相中的电流之间的关系此时的相位交流电源被存储在存储器中。根据从控制单元施加到半导体元件的栅极脉冲的布线的声音以及通过遵循上述相同的过程新存储在存储器中的关系，存储在存储器中的关系，用于施加栅极脉冲的绞合中的误差可以被检测。版权所有（C）2012，JPO＆INPIT

10. 发明专利

JP2010212808A Device and method for diagnosis of fault in multi-channel analog input output circuit 有权
标题翻译：用于诊断多通道模拟输入输出电路故障的装置和方法
公开(公告)号：JP2010212808A
公开(公告)日：2010-09-24
申请号：JP2009054194
申请日：2009-03-06
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： TERAE NAO , ISHIKAWA MASAKAZU , FURUTA YASUYUKI , YOSHIDA KATSUMI , NISHIOKA ATSUSHI , KIYOFUJI YASUHIRO , KASAHARA TAKENORI , NAGAYAMA SHUICHI , KAWAKAZU FUJIYA , KUBOTA MANABU , OTANI TATSUYUKI , TANAKA HIDECHIYO
IPC分类号： H03K17/00 , G01R31/316 , H03M1/10
CPC分类号： G05B19/0425 , G05B2219/21137 , G05B2219/24069 , G05B2219/25435
摘要： PROBLEM TO BE SOLVED: To provide a device and method for diagnosis of a fault capable of simultaneously detecting the fault of a multiplexer used for a multi-channel analog input-output circuit and the fault of an A/D converter, and classifying the causes of the faults.
SOLUTION: A diagnosis voltage input unit inputs test voltage values different per channel of a multiplexer to the multiplexer having a plurality of channels configuring an analog signal conversion unit and to the A/D converter for converting the output of the multiplexer into a digital signal. Then, a digital voltage value output per channel is compared with the input test voltage value to determine whether a fault is in the multiplexer or the A/D converter on the basis of results of comparison.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供用于诊断能够同时检测用于多通道模拟输入 - 输出电路的多路复用器的故障和A / D转换器的故障的故障的装置和方法，以及分类故障原因。解决方案：诊断电压输入单元将具有多路复用器的每个通道不同的测试电压值输入到具有构成模拟信号转换单元的多个通道的复用器和用于将多路复用器的输出转换成A / 数字信号。然后，将每个通道的数字电压值输出与输入的测试电压值进行比较，以根据比较结果确定故障是在多路复用器还是A / D转换器中。版权所有（C）2010，JPO＆INPIT

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