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1. 发明专利

JP2005020805A Wind power generator 有权
标题翻译：风力发电机
公开(公告)号：JP2005020805A
公开(公告)日：2005-01-20
申请号：JP2003178135
申请日：2003-06-23
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 , SUGAWARA NAOSHI , MIYAZAKI KOICHI , MAEKAWA SATOSHI
IPC分类号： F03D7/04 , F03D9/02 , H02J7/00 , H02P9/00 , H02P9/48
CPC分类号： Y02E10/723 , Y02E10/725
摘要： PROBLEM TO BE SOLVED: To continue the operation of a wind power generator without using a secondary battery even when a fault occurs in the secondary battery which can be connected directly to a DC between a rectifier and an inverter without supplying overcurrent. SOLUTION: A wind power generator includes a rectifier 3 for rectifying an AC output of the wind power generator into a DC voltage, the inverter 5 for converting a wind power generator output converted into the DC voltage into an AC voltage, the DC having a smoothing capacitor 4 for connecting the rectifier 3 to the inverter 5, the secondary battery 9 having a switch 10 connected directly to the DC and a current limiting switch 8 connected to the DC via a current limiter circuit 7, and a switching controller 26 for comparing the secondary battery voltage with the smoothing capacitor voltage to close the switch 10 for connecting the secondary battery 9 directly to the DC when the secondary battery voltage substantially coincides with the smoothing capacitor voltage. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：即使在可以直接连接整流器和逆变器之间的直流而不提供过电流的二次电池中发生故障的情况下，也可以不使用二次电池来继续运行风力发电机。解决方案：风力发电机包括整流器3，用于将风力发电机的交流输出整流为直流电压;逆变器5，用于将转换为直流电压的风力发电机输出转换成交流电压，直流具有用于将整流器3连接到逆变器5的平滑电容器4，具有直接连接到DC的开关10的二次电池9和经由限流器电路7连接到DC的限流开关8，以及开关控制器26 用于将二次电池电压与平滑电容器电压进行比较，以在二次电池电压基本上与平滑电容器电压一致时闭合用于将二次电池9直接连接到DC的开关10。版权所有（C）2005，JPO＆NCIPI

2. 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

3. 发明专利

JP2011155727A Power converter 有权
标题翻译：电源转换器
公开(公告)号：JP2011155727A
公开(公告)日：2011-08-11
申请号：JP2010013989
申请日：2010-01-26
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： SAIJO YOSHIHIKO , MIYAZAKI KOICHI , SATOMI HIROHISA , TAN DAISUKE
IPC分类号： H02M7/48 , H02M7/493
摘要： PROBLEM TO BE SOLVED: To reduce earth current flowing out of a power converter. SOLUTION: The power converter accommodates a multiplex winding transformer, an inverter constituted of a plurality of cell inverters which receive power from the multiplex winding transformer while being insulated from one another, by means of the multiplex winding transformer and a filter circuit provided on the inverter output side, wherein the inverter output is supplied to an external motor through the filter circuit in a housing. A low impedance common earth bus line is insulated and arranged in the housing, and the neutral point of the inverter, a fault contact prevention plate of the multiplex winding transformer, and the neutral point of the filter circuit, are connected to the common earth bus line to cause the common earth bus line to be connected to the housing and grounded outside the housing. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：减少从电力转换器流出的接地电流。解决方案：电力转换器容纳多路绕组变压器，由多个电池逆变器构成的逆变器，其通过多路复用绕组变压器和多路绕组变压器彼此绝缘而从多路绕组变压器接收电力，并提供滤波电路在逆变器输出侧，其中逆变器输出通过壳体中的滤波器电路提供给外部电动机。低阻抗公共地线总线被隔离并布置在外壳中，变频器的中性点，多路绕组变压器的故障接触防止板和滤波器电路的中性点连接到公共总线线路使公共地线总线连接到外壳并在外壳外部接地。版权所有（C）2011，JPO＆INPIT

4. 发明专利

JP2007014099A Power supply device and assembly method therefor 有权
标题翻译：电源装置及其组装方法
公开(公告)号：JP2007014099A
公开(公告)日：2007-01-18
申请号：JP2005190484
申请日：2005-06-29
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： KOSHIRO TOSHIYUKI , YABUTANI TAKASHI , MIYAZAKI KOICHI , SAIJO YOSHIHIKO , SUZUKI KOJI , FUKUDA KATSUO , SUDO SADAO , OKUMURA YASUYUKI
IPC分类号： H02B7/06 , H02B1/32 , H02M7/48
CPC分类号： H02M7/003 , B65D90/00
摘要： PROBLEM TO BE SOLVED: To provide a power supply device and an assembly method therefor, capable of attachment with cost reduction of a moving electric chamber, facilitating assembly, and attaining convenient transportation and accurate measurement. SOLUTION: In this power supply device, two containers which are standardized and practically have the same size and can be disposed vertically and transported are used, an inverter board and a power input/output device are fixed and disposed in the inner part of an upper container, a transformer which is spliced with the inverter board and the power input/output device is fixed and disposed in the inner part of a lower container, the upper container and the lower container are disposed vertically, a splice hole is formed at a part of a floor of the upper container, a splice hole is provided at a part of a ceiling of the lower container and a part which faces the floor, the inverter board, the power input/output device, and the transformer are spliced through these splice holes, and a connection device which can be connected/disconnected to/from the power wiring introduced to the outside from the power input/output device is provided. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种电动装置及其组装方法，能够与移动电动室的成本降低相关联，便于组装，并且实现方便的运输和精确的测量。解决方案：在该电源装置中，使用标准化并且实际上具有相同尺寸并且可以垂直和运输的两个容器，逆变器板和电力输入/输出装置固定并设置在内部部分的上容器，与逆变器板接合的变压器和电力输入输出装置固定配置在下容器的内部，上容器和下容器垂直设置，形成接合孔在上部容器的地板的一部分处，在下部容器的顶部的一部分设置有接合孔，并且面向地板的一部分，逆变器板，电力输入/输出装置和变压器被拼接通过这些接合孔，并且提供了能够与从电力输入/输出装置引入外部的电力线连接/断开的连接装置。版权所有（C）2007，JPO＆INPIT

5. 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。

6. 发明专利

JP2008005624A Induction motor drive 有权
标题翻译：感应电机驱动
公开(公告)号：JP2008005624A
公开(公告)日：2008-01-10
申请号：JP2006172531
申请日：2006-06-22
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： TAN DAISUKE , SATOMI HIROHISA , OKAMATSU SHIGETOSHI , MIYAZAKI KOICHI
IPC分类号： H02P27/06
CPC分类号： H02P27/04
摘要： PROBLEM TO BE SOLVED: To prevent variations in the output of an induction motor in switching when driving the induction motor by switching to another inverter device when one inverter device fails. SOLUTION: There are provided: a plurality of inverter devices 1, 2; diverter switches 17, 18a for changing the output of the plurality of inverter devices for supplying to one induction motor 4; and a switching control unit that switches the diverter switch to another inverter device 2 based on a failure detection signal of one inverter device 1, and starts the inverter device 2 to drive the induction motor. The switching control unit has: a frequency/phase detection circuit 22-2a for detecting the frequency and phase of a terminal voltage in the induction motor continuously; and a starting frequency/phase setting apparatus 25-2 for controlling frequencies and phases when starting the other inverter device, by following the detection value of the frequency/phase detection circuit when the failure signal is input. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了防止当一个逆变器装置发生故障时通过切换到另一个逆变器装置来驱动感应电动机时的感应电动机在开关中的输出的变化。解决方案：提供：多个逆变器装置1,2; 用于改变多个逆变器装置的输出以供给一个感应电动机4的切换开关17,18a; 以及切换控制单元，其基于一个逆变器装置1的故障检测信号将切换开关切换到另一个逆变器装置2，并且启动逆变器装置2以驱动感应电动机。开关控制单元具有：频率/相位检测电路22-2a，用于连续地检测感应电动机的端子电压的频率和相位; 以及起动频率/相位设定装置25-2，用于当输入故障信号时跟随频率/相位检测电路的检测值，控制启动另一个逆变器装置时的频率和相位。版权所有（C）2008，JPO＆INPIT

7. 发明专利

JP2007244199A Wind-power generation apparatus 有权
标题翻译：风力发电装置
公开(公告)号：JP2007244199A
公开(公告)日：2007-09-20
申请号：JP2007153469
申请日：2007-06-11
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： KIKUCHI TERU , ICHINOSE MASAYA , FUTAMI MOTOO , MATSUTAKE MITSUGI , MIYAZAKI KOICHI
IPC分类号： H02P9/00 , F03D7/04
CPC分类号： H02P2101/15 , Y02E10/723
摘要： PROBLEM TO BE SOLVED: To provide a wind-power generation apparatus which controls a rotational speed of a windmill within an operating range even when the wind speed suddenly changes and performs continuous operation of the windmill. SOLUTION: The wind-power generation apparatus includes a generator 2 connected to a shaft of a windmill 1 and converters 3 and 5 connected to the generator; controls to follow a command related to generator output in which electric power outputted from the generator is given from the windmill to a converter when rotational speed of the windmill is in a predetermined region; and controls not to follow the command related to the generator output in which the electric power outputted from the generator is given from the windmill to the converter when the rotational speed of the windmill is out of the predetermined region. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了提供即使当风速突然变化并且执行风车的连续操作时，也可以在操作范围内控制风车的转速的风力发电装置。风力发电装置包括连接到风车1的轴的发电机2和与发电机连接的变换器3和5; 控制跟随与发电机输出相关的命令，其中当风车的转速处于预定区域时，从发电机输出的电力从风车到达转换器; 并且当风车的转速超出预定区域时，控制不遵循与发电机输出相关的命令，其中从发电机输出的电力从风车到达转换器。版权所有（C）2007，JPO＆INPIT

8. 发明专利

JP2007089399A Wind power apparatus 有权
标题翻译：风力发电设备
公开(公告)号：JP2007089399A
公开(公告)日：2007-04-05
申请号：JP2006339386
申请日：2006-12-18
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： KIKUCHI TERU , ICHINOSE MASAYA , FUTAMI MOTOO , MATSUTAKE MITSUGI , MIYAZAKI KOICHI
IPC分类号： H02P9/00 , F03D9/00 , H02P9/48
CPC分类号： H02P2101/15 , Y02E10/72
摘要： PROBLEM TO BE SOLVED: To provide a wind power apparatus in which a rotational speed of a windmill is controlled within an operating range, even when the wind speed changes suddenly, with the windmill operating continuously. SOLUTION: The wind power apparatus, provided with a converter comprising a generator connected to a shaft of the windmill and a converter connected to the generator, for controlling the electric power output from the generator as following up a command, related to the generator output given from the windmill to the converter, when the rotational speed of the windmill is in a prescribed region, and to control the electric power output from the generator, without having to track the command relating to the generator output given from the windmill to the converter, when the rotational speed of the windmill deviates from the prescribed region. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：即使当风速突然变化时，风车连续运转，也能够将风车的转速控制在工作范围内的风力发电装置。解决方案：具有转换器的风力发电设备包括连接到风车的轴的发电机和连接到发电机的转换器，用于控制从发电机输出的电力作为跟随命令，与当风车的转速处于规定区域时，从风车到变换器的发电机输出，并且控制从发电机输出的电力，而不必跟踪与风车相关的发电机输出的命令，当风车的转速偏离规定区域时，转换器。版权所有（C）2007，JPO＆INPIT

9. 发明专利

JP2008099496A Power converter 有权
标题翻译：电源转换器
公开(公告)号：JP2008099496A
公开(公告)日：2008-04-24
申请号：JP2006280871
申请日：2006-10-16
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： NAGATA KOICHIRO , OKUYAMA TOSHIAKI , OKAMATSU SHIGETOSHI , MIYAZAKI KOICHI
IPC分类号： H02M7/00
CPC分类号： H02P21/0003
摘要： PROBLEM TO BE SOLVED: To provide a power converter which stably drives an electric motor by preventing a sudden change in an output voltage, and preventing a torque ripple and an overcurrent and the like of the motor, even when a change in power supply is steep and remarkable. SOLUTION: In the power converter which converts a supply voltage into an alternating current of an arbitrary frequency and includes a function to keep the output voltage constant even at power supply change, the power converter reduces the output voltage when the supply voltage decreases to a predetermined value or less. After that, when the supply voltage increases, it increases the output voltage at a predetermined rate of change by using the output voltage before increase in the voltage as an initial value. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种电力转换器，其通过防止输出电压的突然变化并且防止电动机的转矩波动和过电流等来稳定地驱动电动机，即使当功率变化供应陡峭和显着。解决方案：在将电源电压转换为任意频率的交流电的功率转换器中，包括即使在电源变化时也保持输出电压恒定的功能，功率转换器在电源电压降低时降低输出电压达到预定值或更小。此后，当电源电压增加时，通过使用电压增加前的输出电压作为初始值，将输出电压提高到预定的变化率。版权所有（C）2008，JPO＆INPIT

10. 发明专利

JP2007185099A Sensorless controlling unit for synchronous generator, and controlling method 有权
标题翻译：同步发电机无传感器控制单元及控制方法
公开(公告)号：JP2007185099A
公开(公告)日：2007-07-19
申请号：JP2007096988
申请日：2007-04-03
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： KIKUCHI TERU , FUTAMI MOTOO , SUGIURA YASUYUKI , SUGAWARA NAOSHI , MIYAZAKI KOICHI
IPC分类号： H02P9/14
摘要： PROBLEM TO BE SOLVED: To provide a sensorless controlling unit for a synchronous generator in which the synchronous generator is driven through sensorless control while estimating a rotor position, a transducer is controlled with a high precision, and stable output is obtained. SOLUTION: In the controlling unit, a converter includes a voltage detector for detecting a stator terminal voltage for a synchronous generator, and a current detector for detecting a stator current; rotor position estimating means for estimating a rotor position of the synchronous generator from a voltage detected value and a current detected value; an active power detector for detecting an active power of the synchronous generator; a reactive power detector for detecting a reactive power of the synchronous generator or a terminal voltage detector for detecting a terminal voltage effective value of a stator; an active power controller using an active power detected value; and a reactive power controller using a reactive power detected value, or a terminal voltage controller using a terminal voltage detected value. The active power controller regulates q-axis current command to control an active power, and the reactive power controller or the terminal voltage controller regulates d-axis current command to control a reactive power or a terminal voltage. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了提供用于同步发电机的无传感器控制单元，其中通过无传感器控制来驱动同步发电机，同时估计转子位置，以高精度控制换能器，并获得稳定的输出。解决方案：在控制单元中，转换器包括用于检测同步发电机的定子端子电压的电压检测器和用于检测定子电流的电流检测器; 转子位置估计装置，用于根据电压检测值和电流检测值估计同步发电机的转子位置; 用于检测所述同步发电机的有功功率的有功功率检测器; 用于检测同步发电机的无功功率的无功功率检测器或用于检测定子的端子电压有效值的端子电压检测器; 使用有功功率检测值的有功功率控制器; 以及使用无功功率检测值的无功功率控制器，或使用端子电压检测值的端子电压控制器。有功功率控制器调节q轴电流指令以控制有功功率，无功功率控制器或端子电压控制器调节d轴电流指令以控制无功功率或端子电压。版权所有（C）2007，JPO＆INPIT

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