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1. 发明专利

DE10392295T5 未知
公开(公告)号：DE10392295T5
公开(公告)日：2005-05-19
申请号：DE10392295
申请日：2003-04-04
申请人： HITACHI LTD
发明人： NAKATSU KINYA , YAHATA KOICHI , TAKAHASHI MASATO , IWANAKA MITSUFUMI , SAITO RYUICHI , HAMADA HARUKI
IPC分类号： H02M7/00 , H02M1/08
摘要： To provide a power converter equipped with a current detector which is small and can carry out highly accurate current detection, in the power converter equipped with a power module 16 having a power controlling semiconductor element 7 disposed on the power module base 27 with a ceramic substrate 28 interposed, and a control unit 26 for controlling the operation of the power controlling semiconductor element 7, a current detector 40 having a magnetic detecting unit 47 which is disposed in the detection conductor 11, electrically connected to the power controlling semiconductor element 7 and disposed on the power module base 27 with the ceramic substrate 28 interposed, and has a magnetic detecting semiconductor element 43 electrically connected to the control unit 26 is provided in the power module 16; and relative distance between the detection conductor 11 and the power module base 27 is larger than the relative distance between the current detection electrode 42 and the power module base 27.

2. 发明专利

JP2008141815A Uninterruptible power supply system 有权
标题翻译：不间断电源系统
公开(公告)号：JP2008141815A
公开(公告)日：2008-06-19
申请号：JP2006323338
申请日：2006-11-30
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： HAGA KOJI , KIYOFUJI YASUHIRO , IWANAKA MITSUFUMI , MIYATA HIROAKI , MEGURO HIKARI , KUNISADA HIDEAKI
IPC分类号： H02J9/06
摘要： PROBLEM TO BE SOLVED: To stabilize the frequency of a private power generator even if the number of parallel driving UPS is increased/decreased, when the private power generator having a low inertia moment is used as an input power supply. SOLUTION: The attached illustration is a system configuration figure showing the private power generator 4, an AC/DC converter in the UPS and the control system of a chopper circuit. A variable frequency detection part 34 detects mechanical vibration frequency fss resulting from the inertia moment 23 of the private power generator 4 based on a system phase θg obtained by a voltage detector 26 to input the detected frequency into a BEF characteristic part 35. The BEF characteristic part 35 removes the ripple components of the mechanical vibration frequency fss from the DC voltage Edc output from the AC/DC converter 28 to feed it back to a DCAVR 30. Thereby, the DCAVR 30 performs constant voltage control of the DC voltage Edc of the AC/DC converter 28 while dispensing with the ripple components of the mechanical vibration frequency fss. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：即使并行驱动UPS的数量增加/减少，为了稳定私人发电机的频率，当将具有低惯性矩的私人发电机用作输入电源时。
解决方案：附图为系统配置图，显示了私人发电机4，UPS中的AC / DC转换器和斩波电路的控制系统。可变频率检测部分34基于由电压检测器26获得的系统相位θg来检测由私人发电机4的惯性矩23产生的机械振动频率fss，以将检测到的频率输入到BEF特征部分35中.BEF特性部分35从AC / DC转换器28输出的直流电压Edc中去除机械振动频率fss的纹波分量，以将其馈送回到DCAVR30。由此，DCAVR 30对DCAVR30的DC电压Edc进行恒定电压控制 AC / DC转换器28，同时分配机械振动频率fss的纹波分量。版权所有（C）2008，JPO＆INPIT

3. 发明专利

JPH1185329A CONTROL SYSTEM FOR UNINTERRUPTIBLE POWER EQUIPMENT 失效
公开(公告)号：JPH1185329A
公开(公告)日：1999-03-30
申请号：JP24644697
申请日：1997-09-11
申请人： HITACHI LTD
发明人： IKEDA YUJI , IWANAKA MITSUFUMI
IPC分类号： G06F1/26 , G06F1/28 , H02J9/00
摘要： PROBLEM TO BE SOLVED: To provide a remote monitoring system for uninterruptible power equipment capable of improving the reliability and maintainability of the uninterruptible power equipment. SOLUTION: Uninterruptible power equipment systems 2-1 to 2-n are connected to a monitoring center 1 provided with a host computer 11 with a communication line. The host computer 1 is provided with a transmission/reception means for transmitting/receiving information to/from the uninterruptible power equipment systems 2-1 to 2-n through the communication line and an information processing means for processing the transmission/reception content. The uninterruptible power equipment systems are respectively provided with a transmission/reception means for transferring information to/from the monitoring center 1 through the communication line and an information processing means for processing the transmission/reception content. Thus, the occurrence of a fault in the uninterruptible power equipment and the cause of the fault can speedily be grasped, and the reliability and maintainability of the uninterruptible power equipment can be improved by transmitting the signal to the equipment.

4. 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

5. 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

6. 发明专利

JPH0446570A CONTROL SYSTEM OF POWER SUPPLY DEVICE 失效
公开(公告)号：JPH0446570A
公开(公告)日：1992-02-17
申请号：JP15162290
申请日：1990-06-12
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： SHIRAHAMA HIDEFUMI , YAMATO IKUO , TOKUNAGA KIICHI , IWANAKA MITSUFUMI , NAGANO TAKESHI , ISHIDA ISATO
IPC分类号： G05F1/445 , H02M7/48
摘要： PURPOSE:To control AC output voltage stably at high speed by closed-loop controlling a numerical model by a model control function in a control circuit. CONSTITUTION:An AC output-voltage command Vdr and AC output voltage Vcd are taken in first in a pulse width command signal preparation system 7. The voltage deviation value epsilond of Vdr arid Vcd is computed, the arithmetic operation of an output-voltage control function 7b is executed, and a model command value Vmdr is acquired. The arithmetic operation of a model control function 7c is conducted on the basis of Vmdr, a model manipulated variable Dm is obtained, and the arithmetic processing of a numerical model 7d is performed on the basis of Dm. Dm is output to a pulse width control circuit 11 as a pulse width command signal Dd. Output voltage Vcd from an output filter 10 is controlled in response to Vmdr. Accordingly, time lag resulting from the arithmetic processing time of a control arithmetic means and time lag, etc., resulting from the response delay of a detecting circuit can be avoided.

7. 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

8. 发明专利

JPH09224377A PARALLEL OPERATION SYSTEM OF DIFFERENT KINDS OF CONSTANT-VOLTAGE CONSTANT-FREQUENCY INVERTERS 失效
公开(公告)号：JPH09224377A
公开(公告)日：1997-08-26
申请号：JP2894196
申请日：1996-02-16
申请人： HITACHI LTD
发明人： KOMATSUZAKI HAJIME , KUNISADA HIDEAKI , IWANAKA MITSUFUMI , KUROSAKA RYOICHI
IPC分类号： H02J3/38 , H02M7/493 , H02M7/48
摘要： PROBLEM TO BE SOLVED: To suppress the side flow between inverters and to maintain the percent voltage regulation of the output properly when operating a constant- voltage constant-frequency inverter of average value control and a constant- voltage constant-frequency inverter of momentary value control in parallel. SOLUTION: In a parallel operation by inverter devices 1 and 2 that are controlled by average value control and can be operated in parallel when they are operated in a same control system and inverter devices 3 and 4 that are controlled by momentary value control and can be operated in parallel when they are operated in a same control system, the signal of an average value control system for sharing current is shared by all parallel-operated inverter devices 1 and 2, the signal of the momentary value control system for sharing current is shared by the parallel-operated inverter devices 3 and 4 of momentary value control, and the output voltages of the inverter devices 3 and 4 of momentary value control is outputted to a load via a reactor. Further, the output voltages of the inverter devices 1 and 2 of average value control are directly connected to the load.

9. 发明专利

JPS62233072A INVERTER CONTROL CIRCUIT 失效
公开(公告)号：JPS62233072A
公开(公告)日：1987-10-13
申请号：JP7609386
申请日：1986-04-02
申请人： HITACHI LTD
发明人： IWANAKA MITSUFUMI , KUNISADA HIDEAKI
IPC分类号： H02M7/48 , H02M7/5388
摘要： PURPOSE:To prevent a switching element from breaking down by turning OFF one of switching elements on either positive or negative side through delaying it for a given time as compared with the other switching element at the time of stopping an inverter. CONSTITUTION:An inverter composed of switching elements 3-6 converts a DC power 1 into AC and supplies said AC to a load 2. This inverter is further equipped with a snubber circuit consisting of resistance 11, diode 12 and capacitor 13 between P and N of this DC power 1 and also has a wiring inductance 15. In an ignition Control circuit for this inverter, a positive side gate signal system is provided with a P-side pulse generator 22 and a negative side gate signal system, with an N-side pulse generator 23 and a delay circuit 21. This delay circuit 21 delays for a given time transmitting a gate signal for operating and stopping the inverter in answer to said gate signal. Accordingly, N-side switching elements 4, 6 are turned OFF after P-side switching elements 3, 5 have been turned OFF, so that a voltage build-up by the inductance 15 is suppressed.

10. 发明专利

JP2000343143A DEVICE AND METHOD OF MANUFACTURING METALLIC BASE PLATE FOR CIRCUIT 失效
公开(公告)号：JP2000343143A
公开(公告)日：2000-12-12
申请号：JP15112599
申请日：1999-05-31
申请人： HITACHI LTD
发明人： SUZUKI KAZUHIRO , BANDO AKIRA , KAMOSHITA RIKUO , HIRAI TSUTOMU , IWANAKA MITSUFUMI , KOBAYASHI TOSHIYUKI , SAITO NAOTO , SASAKI KOJI
IPC分类号： B21D28/00 , B21D43/00
摘要： PROBLEM TO BE SOLVED: To obtain a circuit pattern base plate of large thickness by pressing an upper stage set being arranged oppositely to a bottom stage set, on which a lead frame is to be mounted, for moving it in the bottom stage direction and by pressure fastening the lead frame so as to cut its unnecessary portion. SOLUTION: A bottom stage 4 is moved from a position directly below the upper stage 2 and a working element is mounted on the bottom stage 4 with an usage of position matching pins 6. The working element is absorbed from a vacuum absorption hole 5 of a bottom cutting blade 3 and is fastened. The bottom stage 4 is moved to a position directly below the upper stage with a rail 11 for pressing and fastening the working element on the bottom cutting blade 3 by lowering the upper stage 2. An upper cutting blade 1 of the upper stage 4 is further lowered for engaging with the bottom cutting blade 3 so that the working element on the bottom cutting blade 3 and the working element on the bottom stage 4 are cut/separated. The bottom stage 4 is pulled out by rising the upper stage 2 so that the necessary circuit pattern alone is left remained on the bottom cutting blade 3.

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