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1. 发明专利

JP2012186872A Dc power supply apparatus 有权
标题翻译：直流电源设备
公开(公告)号：JP2012186872A
公开(公告)日：2012-09-27
申请号：JP2011046169
申请日：2011-03-03
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： NOZAKI YUICHIRO , KOJIMA TETSUO , MAKINO MASASHI
IPC分类号： H02M3/28
CPC分类号： H02M3/3378 , Y02B70/1433
摘要： PROBLEM TO BE SOLVED: To provide a DC power supply apparatus with a transformer, capable of achieving high-frequency operation of a semiconductor switch by attaching an auxiliary circuit for suppressing switching loss, and a countermeasure circuit for surge voltage generated by a rectifier diode.SOLUTION: In the DC power supply apparatus in which a DC power supply 101 and a transformer T are connected each other via a power inverter circuit and which supplies power to a load RL via a rectification diode bridge and a filter circuit connected to a secondary coil of the transformer T, a resonance reactor Lz is provided at an output side of the transformer T, a resonance switch circuit 103 consisting of a parallel circuit of a diode Dz and a semiconductor switch Qz and a resonance capacitor Cz, are connected to the rectification diode bridge in parallel, and a snubber circuit consisting of a snubber capacitor Cs, a snubber diode Ds1 and a diode Ds2 for discharging, is connected to a series resonance circuit consisting of a resonance capacitor Cz of a resonance reactor Lz and the resonance switch 103 in order to absorb the surge voltage.
摘要翻译：要解决的问题：为了提供一种具有变压器的直流电源装置，其能够通过附加用于抑制开关损耗的辅助电路来实现半导体开关的高频工作，以及用于产生的浪涌电压的对策电路整流二极管。解决方案：在其中直流电源101和变压器T经由电力逆变器电路彼此连接并且经由整流二极管桥和连接到负载RL的滤波器电路向负载RL供电的直流电源装置中变压器T的次级线圈，在变压器T的输出侧设置谐振电抗器Lz，由二极管Dz的并联电路和半导体开关Qz以及谐振电容器Cz构成的谐振开关电路103被连接并联到整流二极管电桥，并且由缓冲电容器Cs，缓冲二极管Ds1和用于放电的二极管Ds2组成的缓冲电路连接到由谐振电抗器Lz的谐振电容器Cz组成的串联谐振电路和谐振开关103，以便吸收浪涌电压。版权所有（C）2012，JPO＆INPIT

2. 发明专利

JP2011211886A Dc power supply, power converter 有权
标题翻译：直流电源，电源转换器
公开(公告)号：JP2011211886A
公开(公告)日：2011-10-20
申请号：JP2010240251
申请日：2010-10-27
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： KOMINAMI TSUTOMU , ONDA KENICHI , ISHIKAWA KATSUMI , KONO YASUHIKO , KOJIMA TETSUO , NAGASU MASAHIRO
IPC分类号： H02M3/28 , B60R16/03
摘要： PROBLEM TO BE SOLVED: To suppress a switching loss of a semiconductor switch, to simplify a semiconductor cooling mechanism, and to increase an upper limit value of permissible switching frequency in a DC power supply.SOLUTION: The DC power supply 1 and a primary winding of a transformer 2 are connected through the semiconductor switch. A secondary winding of the transformer and a smoothing filter consisting of a reactor Lo and a capacitor Co are connected through a rectifying diode bridge D5-D8. A resonance circuit constituted of a capacitor to be charged by resonance with a leakage inductance of the transformer, or an inductor connected to the secondary winding in series, when one side of the secondary winding of the transformer is positive polarity in a circuit for generating a DC power supply, and a parallel circuit of a semiconductor switch and a diode connected to the capacitor in series, is arranged in the secondary side of the transformer. In the DC power supply, when the another side of the secondary winding of the transformer becomes positive polarity, the capacitor can be discharged.
摘要翻译：要解决的问题：为了抑制半导体开关的开关损耗，简化半导体冷却机构，并增加直流电源中允许的开关频率的上限值。解决方案：直流电源1和初级绕组的变压器2通过半导体开关连接。变压器的次级绕组和由电抗器Lo和电容器Co组成的平滑滤波器通过整流二极管电桥D5-D8连接。一种谐振电路，由在变压器的漏电感中谐振而被充电的电容器或与次级绕组串联连接的电感器构成的谐振电路，当在变压器的次级绕组的一侧为正极时，直流电源，以及串联连接到电容器的半导体开关和二极管的并联电路设置在变压器的次级侧。在直流电源中，当变压器次级绕组的另一侧变为正极时，电容可以放电。

3. 发明专利

JP2010154661A Synchronous motor controlling apparatus 有权
标题翻译：同步电机控制装置
公开(公告)号：JP2010154661A
公开(公告)日：2010-07-08
申请号：JP2008330143
申请日：2008-12-25
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： TACHIHARA SHUICHI , KOJIMA TETSUO
IPC分类号： H02P27/06
摘要： PROBLEM TO BE SOLVED: To prevent a brake torque during coasting, without increasing the number of device components in a synchronous motor controlling apparatus for driving a permanent magnet synchronous motor.
SOLUTION: A synchronous motor controlling apparatus includes a DC power supply, an inverter device, and a filter capacitor connected between the DC power supply and the inverter device; and the synchronous motor controller drives at least one or more permanent magnet synchronous motors by the inverter device. When the induced voltage of the permanent magnet synchronous motor becomes higher than or equal to a first reference value in a coasting state of traveling by inertia, while stopping the inverter device, the DC power supply is operated such that a voltage on the DC side of the inverter device can be higher than or equal to a second reference value set, on the basis of the induced voltage.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了防止在滑行期间的制动转矩，而不增加用于驱动永磁同步电动机的同步电动机控制装置中的装置部件的数量。解决方案：同步电动机控制装置包括连接在直流电源和逆变器装置之间的直流电源，逆变器装置和滤波电容器; 同步电机控制器通过逆变器装置驱动至少一个或多个永磁同步电动机。当永久磁铁同步电动机的感应电压在惯性行驶的滑行状态下变得高于或等于第一基准值时，在停止逆变器装置的同时，直流电源被运行，使得DC侧的电压基于感应电压，逆变器装置可以高于或等于设定的第二参考值。版权所有（C）2010，JPO＆INPIT

4. 发明专利

JP2009011029A Control device of electric vehicle, and electric vehicle 有权
标题翻译：电动车控制装置及电动车辆
公开(公告)号：JP2009011029A
公开(公告)日：2009-01-15
申请号：JP2007167887
申请日：2007-06-26
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： ISHIDA SEIJI , TOYODA EIICHI , NAKADA KIYOSHI , KOJIMA TETSUO , NAGASU MASAHIRO
IPC分类号： B60L9/18 , H02P23/00
摘要： PROBLEM TO BE SOLVED: To solve a problem that, when a vehicle speed is high, and an electromotive force is higher than a DC-side voltage of an inverter, a copper loss and an inverter loss may be generated even at coasting, since a motor current cannot be lowered to zero even if all valve devices of the inverter are turned off at the coasting, in an electric vehicle applied with a permanent magnet synchronous motor. SOLUTION: When the electric vehicle is transited to a coasting state from a powering state or a regenerating state, a converter is controlled when the electromotive force is higher than the DC-side voltage of the inverter, and a DC voltage is raised on the basis of a DC voltage command Vdc* during the coasting. By this, since the motor current can be lowered to zero at the coating, the copper loss and the inverter loss can be suppressed. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题为了解决当车速高并且电动势高于逆变器的直流侧电压的问题时，即使在滑行时也可能产生铜损和逆变器损失即使在施加永磁同步电动机的电动车辆中，即使逆变器的所有阀装置在滑行时都被关闭，电机电流也不能降低为零。解决方案：当电动车从动力状态或再生状态转变到滑行状态时，当电动势高于逆变器的直流侧电压时，转换器被控制，直流电压升高基于滑行期间的直流电压指令Vdc *。由此，由于电镀电流可以降低为零，所以可以抑制铜损和逆变器损耗。版权所有（C）2009，JPO＆INPIT

5. 发明专利

JP2008131835A Drive device for railway vehicle 有权
标题翻译：铁路车辆驱动装置
公开(公告)号：JP2008131835A
公开(公告)日：2008-06-05
申请号：JP2006317371
申请日：2006-11-24
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： TACHIHARA SHUICHI , KOJIMA TETSUO , SHIMADA MOTOMI , NAGASU MASAHIRO , TOYODA EIICHI
IPC分类号： B60L9/18 , B60L11/12 , B61C5/00
CPC分类号： B60L11/1861 , B60L11/123 , B60L15/20 , B60L2200/26 , B60L2210/20 , B60L2260/54 , Y02T10/6217 , Y02T10/7005 , Y02T10/7044 , Y02T10/705 , Y02T10/725 , Y02T10/7275
摘要： PROBLEM TO BE SOLVED: To provide a drive device for a railway vehicle with higher energy efficiency which manages a power storage amount of a power storage device according to a line state changing every moment, with simpler constitution, in the drive unit for the railway vehicle which has a dc power generating means and the power storage device, and uses power generated by at least one of the both means. SOLUTION: A surplus or a deficiency of the power storage amount generated according to a slope state of lines is predicted from a difference between kinetic energy calculated from a running speed of the vehicle and reference kinetic energy calculated from reference speed information to a running position of the vehicle. A charging or discharging amount of the power storage device is adjusted based on the predicted surplus or deficiency of the power storage amount. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种具有更高能量效率的铁路车辆的驱动装置，其以更简单的结构根据线状态管理蓄电装置的蓄电量，在驱动单元中所述铁路车辆具有直流发电装置和所述蓄电装置，并且使用由所述两个装置中的至少一个产生的电力。解决方案：根据车辆的坡度状态产生的蓄电量的剩余或不足是根据从车辆行驶速度计算的动能与从参考速度信息计算出的参考动能之间的差异预测的车辆的行驶位置。蓄电装置的充电或放电量根据预测的蓄电量的过剩或不足而进行调整。版权所有（C）2008，JPO＆INPIT

6. 发明专利

JP2006238512A Device for controlling inverter control vehicle with slip slide detection means 有权
标题翻译：用于控制具有滑动检测装置的逆变器控制车辆的装置
公开(公告)号：JP2006238512A
公开(公告)日：2006-09-07
申请号：JP2005045413
申请日：2005-02-22
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： TACHIHARA SHUICHI , KOJIMA TETSUO
IPC分类号： B60L9/18
CPC分类号： Y02T10/7241
摘要： PROBLEM TO BE SOLVED: To exactly perform slip detection, slide detection and re-adhesion detection, in an electric automobile that vector-controls an inverter without using a speed sensor.
SOLUTION: This control device of an inverter control vehicle comprises: the inverter 2 that drives a vehicle driving motor 3; a current detection means 6 that detects an output current of the inverter 2; a coordinate conversion means 7 that converts current detected values detected by the current detection means 6 from AC amounts to DC amounts I
df , I
qf by coordinate conversion; a current command generation means 4 that generates current command values I
dp , I
qp with respect to the I
df , I
qf that are converted to the DC amounts from the current detected values; a speed estimation means 8 that operates a rotational speed estimation value F
rc of the motor 3 from the current command values I
dp , I
qp and the current detected values I
df , I
qf ; and a vector control mans 9 that vector-controls the inverter 2 on the basis of the current command values I
dp , I
qp and the rotational speed estimation value F
rc of the motor 3. The control device also comprises a slip slide detection means 10 that performs the slip detection, the slide detection and the re-adhesion detection by using a current deviation integrated value obtained by integrating deviation between the current command value I
qp and the current detected value I
qf .
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：在不使用速度传感器的情况下矢量控制逆变器的电动汽车中，为了精确地执行滑动检测，滑动检测和再粘合检测。解决方案：逆变器控制车辆的该控制装置包括：驱动车辆驱动电机3的逆变器2; 检测逆变器2的输出电流的电流检测单元6; 通过坐标转换将由电流检测装置6检测的电流检测值从AC量转换为DC量I df ，I qf 的坐标转换装置7; 电流指令生成装置4，其相对于I SB> df 产生电流指令值I dp ，I qp / SB>从当前检测值转换为DC量; 根据当前指令值I dp ，I SB> SBP 操作电动机3的转速估计值F rc 的速度估计装置8和当前检测值I df ，I qf ; 以及基于当前指令值I dp ，I qp 和转速估计值F 矢量控制变频器2的矢量控制装置9， rc 。控制装置还包括滑动检测装置10，其通过使用通过积分电流之间的偏差获得的电流偏差积分值来执行滑移检测，滑动检测和再粘附检测指令值I qp 和当前检测值I qf 。版权所有（C）2006，JPO＆NCIPI

7. 发明专利

JP2005204500A Drive control arrangement of induction motor 有权
标题翻译：感应电机的驱动控制装置
公开(公告)号：JP2005204500A
公开(公告)日：2005-07-28
申请号：JP2005061754
申请日：2005-03-07
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： KOJIMA TETSUO , TANAMACHI TOKUNOSUKE , SHIMADA MOTOMI , NAKADA KIYOSHI
IPC分类号： H02P21/00 , H02P27/04
摘要： PROBLEM TO BE SOLVED: To surely decelerate a speed by making a stable estimation of the speed down to the extremely low-speed region in a speed censor-less vector control system of the induction motor. SOLUTION: In the drive control arrangement of the induction motor, comprising a power converter 4 driving the induction motor 5, a current detection means 6 detecting an AC current supplied to the induction motor, a conversion means 7 converting the detected AC current into a current of flux axis (d-axis) component (hereinafter d-axis current) of rotating field coordinate system and a current of component (hereinafter q-axis current) orthogonal to the d-axis, a first speed estimation means 11, 12 generating a speed estimation value Fr from the q-axis current Iq, and a means 1, 3 drive controlling the induction motor based on the speed estimation value, a second speed estimation means 10, 12 generating a speed estimation value from a d-axis current command value Id* and a q-axis current command value Iq* are provided, to control the induction motor by switching the speed estimation means to the second speed estimation means when the speed estimation value is generated in a prescribed value or less during decelerating operation. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：通过在感应电动机的无速度传感器矢量控制系统中将速度稳定地估计到极低速区域来确实地减速。解决方案：在感应电动机的驱动控制装置中，包括驱动感应电动机5的电力转换器4，检测提供给感应电动机的AC电流的电流检测装置6，转换检测到的AC电流的转换装置7 旋转场坐标系的磁通轴（d轴）分量（以下称为d轴电流）和与d轴正交的分量电流（以下称为q轴电流）的电流为第一速度估计单元11， 12从q轴电流Iq产生速度估计值Fr，以及基于速度估计值驱动感应电动机的装置1,3;第二速度估计装置10,12从d轴产生速度估计值，提供轴电流指令值Id *和q轴电流指令值Iq *，以在速度估计值以规定的速度产生时，通过将速度估计装置切换到第二速度估计装置来控制感应电动机值或更小。版权所有（C）2005，JPO＆NCIPI

8. 发明专利

JP2004266911A Controller for ac electric vehicle 有权
公开(公告)号：JP2004266911A
公开(公告)日：2004-09-24
申请号：JP2003053218
申请日：2003-02-28
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： KOJIMA TETSUO , INARIDA SATOSHI
IPC分类号： B60L3/00 , B60L9/24
摘要： PROBLEM TO BE SOLVED: To suppress increase in the harmonic components generated in a frequency region which are lower than carrier frequency, especially increase in the harmonic components of integral multiples of the frequency (fundamental frequency) of an AC aerial line, in two or more PWM converters. SOLUTION: A controller 12 for an AC electric car, which is equipped with a power converter 8, which converts the AC of an AC aerial line 1 into a DC based on a prescribed carrier, is equipped with a detector 7 for a voltage a of an AC aerial line, a detection means 22 for a phase d of the voltage of an AC aerial line, an integration means 27 which integrates and outputs frequency i of an internal power source phase j, a calculation means 24 which calculates the deviation f of the frequency of the power source, based on the deviations between the phase d and the phase j, and a means 26 which obtains the frequency i, by adding the reference value h of the frequency of the internal power source to the deviation f. The controller 12 calculates a frequency k of the carrier, based on the frequency of the internal power source, by controlling the frequency of the internal power source so that the phase of the voltage of the AC aerial line and the phase of the internal power source are synchronized with each other, and obtains a phase l of carriers by integrating the frequency k, and generates a carrier o for controlling a converter 8, based on the phase l. COPYRIGHT: (C)2004,JPO&NCIPI

9. 发明专利

JP2003289700A Control unit for induction motor 有权
标题翻译：感应电机控制单元
公开(公告)号：JP2003289700A
公开(公告)日：2003-10-10
申请号：JP2002088815
申请日：2002-03-27
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： ISHIDA SEIJI , OKUYAMA TOSHIAKI , SUZUKI MASAHITO , KOJIMA TETSUO
IPC分类号： H02P27/06 , H02P21/00 , H02P27/04 , H02P7/63
摘要： PROBLEM TO BE SOLVED: To simultaneously compensate set mistakes of a secondary resistance and a mutual inductance of a control unit for an induction motor. SOLUTION: A control unit for an induction motor comprises a rotating coordinates converting means for converting a current flowing to the motor into an exciting current detected value and a torque current detected value of the rotating coordinates, and a frequency voltage control means for controlling a frequency and the voltage of the motor on the basis of a set value of a motor constant including the secondary resistance and the mutual inductance of the motor. The frequency voltage control means includes current control means 101, 106 for controlling the voltage applied to the motor on the basis of a difference between an exciting current command and an exciting current detected value, and a difference between a torque current command and a torque current detected value, and a motor constant correcting means 111 for correcting the set values of the secondary resistance and the mutual inductance on the basis of the outputs of the means 101 and the means 106. COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：同时补偿感应电动机的控制单元的二次电阻和互感的设定错误。解决方案：用于感应电动机的控制单元包括旋转坐标转换装置，用于将流过电动机的电流转换为激励电流检测值和旋转坐标的转矩电流检测值;以及频率电压控制装置，基于包括二次电阻和电动机的互感的电动机常数的设定值来控制电动机的频率和电压。频率电压控制装置包括电流控制装置101,106，用于根据励磁电流指令和励磁电流检测值之间的差值以及转矩电流指令与转矩电流之间的差值来控制施加到电动机的电压检测值，以及基于装置101和装置106的输出来校正二次电阻和互感的设定值的电动机常数校正装置111.版权所有（C）2004，JPO

10. 发明专利

JP2014195373A Dc power unit 有权
标题翻译：直流电源单元
公开(公告)号：JP2014195373A
公开(公告)日：2014-10-09
申请号：JP2013070939
申请日：2013-03-29
申请人： Hitachi Ltd , 株式会社日立製作所 , Hitachi Mito Engineering Co Ltd , 日立水戸エンジニアリング株式会社
发明人： SHINOMIYA KENJI , MURAOKA KAZUFUMI , KOJIMA TETSUO , KAWAMOTO TAKEYASU , SUGIURA TORU
IPC分类号： H02M3/28
CPC分类号： H02M3/33576 , H02M2001/0058 , Y02B70/1433 , Y02B70/1491
摘要： PROBLEM TO BE SOLVED: To reduce generation of noise caused by an inrush surge current in turning-on a resonance switch and a loss in turning-on the resonance switch in a DC-DC converter.SOLUTION: An inrush surge current suppression reactor is provided in a closed circuit formed from a snubber circuit and a resonance circuit, and inductance utilized for a resonant operation is partially charged with leakage inductance of a transformer and inductance of the inrush surge current suppression reactor. A ratio of the inductance of the inrush surge suppression reactor with respect to a sum (resonance inductance) of the leakage inductance of the transformer and the inductance of the inrush surge current suppression reactor is determined to reduce a turn-on loss of a resonance switch within allowable voltage resistance values of the resonance switch, thereby suppressing an inrush surge current.
摘要翻译：要解决的问题：减少在开启谐振开关时由浪涌电流引起的噪声的产生和DC-DC转换器中的谐振开关导通的损耗。解决方案：提供浪涌电流抑制电抗器在由缓冲电路和谐振电路形成的闭合电路中，并且用于谐振操作的电感部分地被变压器的漏电感和浪涌电流抑制电抗器的电感充电。冲击浪涌抑制电抗器的电感相对于变压器的漏感和谐振电流抑制电抗器的电感之和（谐振电感）的比率被确定为减小谐振开关的接通损耗在谐振开关的容许电压电阻值内，从而抑制浪涌电流。

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