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1. 发明专利

JP2017093012A 電力変換装置の制御装置および制御方法、並びに電力変換システム审中-公开
公开(公告)号：JP2017093012A
公开(公告)日：2017-05-25
申请号：JP2015215597
申请日：2015-11-02
申请人：株式会社日立製作所 , Hitachi Ltd
发明人： WATANABE KENTA , KIKUCHI TERU
IPC分类号： H02M7/48 , H02M1/40
摘要：【課題】ACCTの鉄心が磁気飽和を起こしても、変圧器の鉄心の残留磁束に起因する直流偏磁を防止することができる電力変換装置の制御装置および制御方法、並びに電力変換システムを提供する。【解決手段】変圧器を介して電力系統に接続される電力変換装置の制御装置109が、交流CT106によって検出される変圧器102の励磁電流に基づいて、変圧器の直流偏磁を抑制する第一の補正指令iDMP1を作成する第一の偏磁抑制制御装置111と、電力系統の系統電圧に基づいて推定される変圧器の残留磁束に基づいて、変圧器の前記残留磁束を低減する第二の補正指令iDMP2を作成する第二の偏磁抑制制御装置112と、第一の補正指令および前記第二の補正指令に基づいて補正指令を作成する切替器113と、指令値および補正指令に基づいて電力変換装置の制御信号を作成する演算部115と、を備える。【選択図】図1

2. 发明专利

JP2014080118A Cooling method for electric work vehicle, and power supply device for electric work vehicle 有权
标题翻译：电动车用冷却方法及电动车用电源装置
公开(公告)号：JP2014080118A
公开(公告)日：2014-05-08
申请号：JP2012229388
申请日：2012-10-17
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： NORIMATSU YASUAKI , KIKUCHI TERU , SUGAWARA NAOSHI , AKITA YOSHITOSHI
IPC分类号： B60K11/06 , B60K1/00 , B60L3/00
CPC分类号： B60K1/00 , B60K2001/003 , B60L3/003 , B60L7/14 , B60L11/005 , B60L11/1803 , B60L2200/26 , B60L2200/36 , B60L2220/44 , B60L2240/36 , B60L2240/525 , B60L2270/145 , B60Y2200/14 , B60Y2200/91 , H02M7/003 , H02M2001/327 , Y02T10/648 , Y02T10/7005 , Y02T10/7022
摘要： PROBLEM TO BE SOLVED: To provide an electric work vehicle in which reduction of cooling efficiency due to inclination of a vehicle body can be suppressed and further impact resistance can be increased.SOLUTION: An electrically-driven type dump truck 1 comprises: left and right drive wheels 4L, 4R; electric motors 5L, 5R for driving the left and right drive wheels; and a power supply device 10. The supply device 10 includes: heat pipe fin devices 11 which are respectively located so as to face the left and the right of a vehicle body 2; and an inverter circuit 12 which is attached to the heat pipe fin devices 11. One heat pipe fin 110 is exposed in a wind channel 22 in which cooling wind flows and faces to the other heat pipe fin. The heat pipe fin 110 is mounted upwards from a horizontal plane by a predetermined fitting angle. Thus, cooling ability can be kept even if the vehicle body 2 is inclined in a longitudinal or lateral direction.
摘要翻译：要解决的问题：提供一种电动作业车辆，其中可以抑制由于车身倾斜导致的冷却效率的降低，并且可以提高其进一步的抗冲击性。解决方案：电动式自卸车1包括：左右驱动轮4L，4R; 用于驱动左右驱动轮的电动马达5L，5R; 供电装置10包括：分别位于车身2的左右的热管翅片装置11; 以及安装在热管翅片装置11上的逆变器电路12.一个热管翅片110在冷却风流动的风道22中露出，并面对另一个热管翅片。热管翅片110从水平面向上安装预定的配合角度。因此，即使车体2在纵向或横向方向上倾斜，也可以保持冷却能力。

3. 发明专利

JP2003018897A Generating equipment using permanent-magnet generator 有权
标题翻译：使用永磁发电机生成设备
公开(公告)号：JP2003018897A
公开(公告)日：2003-01-17
申请号：JP2001197652
申请日：2001-06-29
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： KAWAZOE HIROSHIGE , FUTAMI MOTOO , KIKUCHI TERU
IPC分类号： H02P9/42 , H02J3/18 , H02J3/24 , H02M5/458 , H02P9/00
CPC分类号： H02M5/458 , H02J3/1885 , H02J3/24 , H02P9/00 , Y02E40/32
摘要： PROBLEM TO BE SOLVED: To efficiently attain robust characteristics over a wide range of variable speed by the reactive power control or voltage control of power converters in generating equipment provided with a permanent-magnet generator.
SOLUTION: The generating equipment comprises the permanent-magnet alternating-current generator; a first converter which converts alternating-current power to direct-current power; and a second converter which converts direct- current power transmitted from the first converter to alternating-current power. The first converter is provided with a means for controlling active power and a means for controlling reactive power. The second converter is provided with a means for controlling the voltage of a direct-current system and the reactive power or alternating-current voltage of a power system.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：通过设置有永磁发电机的发电设备中的功率转换器的无功功率控制或电压控制，在宽范围的变速下有效地获得鲁棒特性。解决方案：发电设备包括永磁式交流发电机; 将交流电力转换为直流电力的第一转换器; 以及将从第一转换器发送的直流电力转换为交流电力的第二转换器。第一转换器设置有用于控制有功功率的装置和用于控制无功功率的装置。第二转换器设置有用于控制直流系统的电压和电力系统的无功功率或交流电压的装置。

4. 发明专利

JP2003018894A Apparatus and method for controlling operation 有权
标题翻译：控制操作的装置和方法
公开(公告)号：JP2003018894A
公开(公告)日：2003-01-17
申请号：JP2001197650
申请日：2001-06-29
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： SUGIURA YASUYUKI , FUTAMI MOTOO , KIKUCHI TERU , SUGAWARA NAOSHI , MIYAZAKI KOICHI
IPC分类号： H02P9/08 , H02P9/00
摘要： PROBLEM TO BE SOLVED: To provide an apparatus which, in equipment wherein the output of a synchronous generator directly coupled with a driving source is converted to a direct current through a power converter and further converted to an alternating current through a power converter and power is supplied to a system power supply, matches the magnitude and phase of voltage produced by the generator-side converter with the magnitude and phase of the induced voltage of the synchronous generator at start. SOLUTION: An encoder is coupled directly with the synchronous generator and is used as a phase detecting means. An induced voltage is detected and three phase-to-two-phase converted to an active voltage and a reactive voltage. In this conversion, a sine wave and a cosine wave are used from a table unferein a timer generated from the encoder is set as an address. When the induced voltage is not matched with the sine wave of the table value at this time, the reactive voltage has an value. At start, the output of a phase lock control portion is corrected to a table address determined from the encoder so that the reactive voltage is set to zero. Thereby, the magnitude and phase of a voltage generated by the equipment are matched with the magnitude and phase of the induced voltage of the synchronous generator.
摘要翻译：要解决的问题：提供一种在与驱动源直接耦合的同步发电机的输出被转换成通过功率转换器的直流并且进一步转换成通过功率转换器的交流电的设备中，提供给系统电源，使发生器侧转换器产生的电压的幅度和相位与启动时的同步发电机的感应电压的大小和相位相匹配。解决方案：编码器与同步发生器直接耦合，用作相位检测装置。检测感应电压，并将三相相位转换为有效电压和无功电压。在该转换中，从表格中使用正弦波和余弦波，将从编码器产生的定时器设置为地址。此时当感应电压与表值的正弦波不匹配时，无功电压有一个值。在启动时，将锁相控制部分的输出校正为从编码器确定的表地址，使无功电压设置为零。因此，由设备产生的电压的大小和相位与同步发电机的感应电压的大小和相位相匹配。

5. 发明专利

JP2017118616A 電力変換器审中-公开
公开(公告)号：JP2017118616A
公开(公告)日：2017-06-29
申请号：JP2015249221
申请日：2015-12-22
申请人：株式会社日立製作所 , Hitachi Ltd
发明人： KOMINAMI TSUTOMU , KIKUCHI TERU
IPC分类号： H02M1/00 , H01L23/427
摘要：【課題】電力変換器の運転状況に対し、半導体素子のサーマルサイクル耐量を向上させ、半導体素子の信頼性を向上させること、および、半導体素子を冷却する冷却器の信頼性を向上させることを目的とする。【解決手段】電力変換器において、電力変換器は半導体素子および半導体素子を冷却する冷却器を有し、電力変換器は起動または停止を繰り返すものであり、電力変換器が停止してから起動するまでの時間に応じて前記冷却器の動作条件を変更することを特徴とする電力変換器。【選択図】図3

6. 发明专利

JP2004187431A Wind turbine generator system equipped with secondary battery 有权
标题翻译：风力发电机系统配备二次电池
公开(公告)号：JP2004187431A
公开(公告)日：2004-07-02
申请号：JP2002353179
申请日：2002-12-05
申请人： Hitachi Engineering & Services Co Ltd , Hitachi Ltd , 株式会社日立エンジニアリングサービス , 株式会社日立製作所
发明人： KIKUCHI TERU , FUTAMI MOTOO , MIYAZAKI KOICHI , MAEKAWA SATOSHI
IPC分类号： H02J7/00 , H01M10/44 , H02J7/34 , H02P9/00
CPC分类号： Y02E10/766
摘要： PROBLEM TO BE SOLVED: To restoratively charge an output-variation compensation secondary battery by operating a wind turbine.
SOLUTION: This wind turbine generator system comprises a generator with a rotor connected to the wind turbine, a first converter connected to a stator of the generator, a second converter connected to a power system, the secondary battery connected to the first converter and the second converter in parallel, a control means for the first converter, and a control means for the second converter. When restoratively charging the secondary battery, the control means for the first converter adjusts the number of revolutions of the generator and the effective power of the generator by using a revolution number controller and a first effective power controller.
COPYRIGHT: (C)2004,JPO&NCIPI
摘要翻译：要解决的问题：通过操作风力涡轮来对输出变化补偿二次电池进行恢复充电。解决方案：该风力涡轮发电机系统包括具有连接到风力涡轮机的转子的发电机，连接到发电机的定子的第一转换器，连接到电力系统的第二转换器，连接到第一转换器的二次电池和第二转换器，用于第一转换器的控制装置和用于第二转换器的控制装置。当对二次电池进行恢复充电时，第一转换器的控制装置通过使用转数控制器和第一有效功率控制器来调节发电机的转数和发电机的有效功率。版权所有（C）2004，JPO＆NCIPI

7. 发明专利

JP2003333752A Wind turbine power generator having secondary battery 有权
标题翻译：具有二次电池的风力发电机
公开(公告)号：JP2003333752A
公开(公告)日：2003-11-21
申请号：JP2002137904
申请日：2002-05-14
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： KIKUCHI TERU , FUTAMI MOTOO , MAEKAWA SATOSHI
IPC分类号： F03D9/02 , H02J3/32 , H02J3/38 , H02P9/48
CPC分类号： Y02E10/72 , Y02E10/763 , Y02E10/766 , Y02E70/30
摘要： PROBLEM TO BE SOLVED: To improve the utilization factor of a windmill and to suppress the change of an output power due to the output change of the windmill. SOLUTION: A wind turbine power generator comprises: a rectifier having the rotor of a synchronous generator connected to the shaft of the windmill and connected to the stator of the generator; and an inverter connected to the rectifier and connected to a power system. In this power generator, the variable-frequency power generated from the synchronous generator is converted into a DC power by the rectifier, the DC power is converted to a fixed-frequency AC power by the inverter, a secondary chargeable and dischargeable battery is directly coupled between the rectifier and the inverter, and the battery is always controlled to be charged and discharged so as to suppress the change of the effective power to be output to the power system. COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：提高风车的利用率，并抑制由于风车的输出变化引起的输出功率的变化。风力发电机包括：整流器，其具有与风车的轴连接并连接到发电机的定子的同步发电机的转子; 以及连接到整流器并连接到电力系统的逆变器。在该发电机中，由同步发电机产生的可变频率电力由整流器转换成直流电力，逆变器将直流电力转换为固定频率的交流电力，二次充电和放电电池直接耦合在整流器和逆变器之间，并且电池总是被控制为充电和放电，以便抑制要输出到电力系统的有效功率的变化。版权所有（C）2004，JPO

8. 发明专利

JP2013129471A Driving device for elevator device 审中-公开
标题翻译：电梯装置的驱动装置
公开(公告)号：JP2013129471A
公开(公告)日：2013-07-04
申请号：JP2011278326
申请日：2011-12-20
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： YONEKAWA TERU , MORI KAZUHISA , KIKUCHI TERU , YOSHIKAWA TOSHIFUMI , ISHIKAWA KATSUMI , FUKADA HIRONORI
IPC分类号： B66B1/34 , H02J7/34
CPC分类号： Y02B50/127
摘要： PROBLEM TO BE SOLVED: To solve a problem that, although power amounts to be charged and discharged are different when a lifting motor has a high load and a light load, a switching element continuously executes switching operation whether the lifting motor has the high load or the light load, and a switching frequency is not controlled, so that the switching element is operated more than needed, and a life span of the switching element is reduced.SOLUTION: When it is determined that the load for the lifting motor is lower than a predetermined threshold, the switching frequency of an upper side IGBT23 and a lower side IGBT24 for the switching of a charging and discharging device is reduced, or the switching is stopped. Accordingly, the life span of the switching element is maintained.
摘要翻译：要解决的问题：为了解决当提升电动机具有高负载和轻负载时，充放电功率不同的问题，开关元件是否连续执行切换操作，无论起重电动机是否具有高负载，或者轻负载和开关频率不受控制，使得开关元件的操作更加需要，并且开关元件的使用寿命降低。解决方案：当确定提升电机的负载低于预定阈值，用于切换充放电装置的上侧IGBT23和下侧IGBT24的开关频率减小，或切换停止。因此，保持开关元件的寿命。

9. 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

10. 发明专利

JP2008011609A Electric-driven vehicle 有权
标题翻译：电动车
公开(公告)号：JP2008011609A
公开(公告)日：2008-01-17
申请号：JP2006177491
申请日：2006-06-28
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： KIKUCHI TERU , IKIMI TAKASHI , SHIMADA KEIZO , SUGAWARA NAOSHI
IPC分类号： B60L9/18 , H02P5/46
CPC分类号： B60W20/11 , B60K6/52 , B60L15/2036 , B60L2240/24 , B60L2240/423 , B60W10/08 , B60W20/00 , B60W30/045 , B60W2710/083 , B62D11/003 , B62D11/04 , B62D11/24 , Y02T10/6265 , Y02T10/645 , Y02T10/646 , Y02T10/648 , Y02T10/7275
摘要： PROBLEM TO BE SOLVED: To provide an electric-driven vehicle which can get driving power with other wheels when one wheel gets stuck in the mud, while improving turnability. SOLUTION: The electric-driven vehicle, which is equipped with a motor controller that controls the first and second motors of itself, is equipped with a steering angle detector which outputs the angle-detected-value of the steering of itself. The motor controller has a first torque command pattern to get the torque command of the first motor and the second torque command pattern to get the second motor. Using the steering angle detector, at left turn, it changes the first and second torque command patterns so that the second torque pattern may be larger in the magnitude of the torque command to the same angle than the first torque pattern, and at right turn, it changes the first and second torque command patterns so that the first torque pattern may be larger in the magnitude of the torque command to the same angle than the second torque pattern. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种电动车辆，其在一个车轮卡在泥浆中时可以利用其他车轮获得驱动力，同时提高转向性。解决方案：配备有控制本身的第一和第二电动机的电动机控制器的电动车配备有转向角检测器，该转向角检测器输出其自身的转向角度检测值。电动机控制器具有第一转矩指令模式以获得第一电动机和第二转矩指令模式的转矩指令以获得第二电动机。使用转向角检测器，在左转时，它改变第一和第二转矩指令图案，使得第二转矩模式在转矩指令的幅度上可能比第一转矩模式具有相同的角度，而在右转时，它改变第一和第二扭矩指令模式，使得第一扭矩模式在扭矩指令的大小上可能比第二扭矩模式相同角度更大。版权所有（C）2008，JPO＆INPIT

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