公开(公告)号：EP2645552B1

公开(公告)日：2020-04-22

申请号：EP13154544.4

申请日：2013-02-08

申请人： Hitachi, Ltd.

发明人： Yamamoto, Takayoshi ,  Ichinose, Masaya ,  Bando, Akira ,  Yamashita, Keiichi ,  Inoue, Shigenori ,  Yoshihara, Toru ,  Eguchi, Yoshio ,  Sakuchi, Osamu ,  Katoh, Shuji ,  Ito, Tomomichi

IPC分类号： H02M1/08 ,  H02M7/217 ,  H02M7/48 ,  H02M7/483

公开(公告)号：EP2685621A2

公开(公告)日：2014-01-15

申请号：EP13003491.1

申请日：2013-07-10

申请人： Hitachi Ltd.

发明人： Yamamoto, Takayoshi ,  Ichinose, Masaya ,  Bando, Akira ,  Inoue, Shigenori ,  Yoshihara, Toru

IPC分类号： H02M7/483

CPC分类号： H02M5/44 ,  H02M7/483 ,  H02M2007/4835

摘要： A control apparatus for use with a voltage source converter (102) includes legs (104) each of which is configured by a plurality of converter modules (108) each having capacitors (203). Each of the legs has a first terminal on a positive side and a second terminal on a negative side. The control apparatus is operative to create command pulses for operating the converter modules to operate the converter modules. The command pulses have a frequency that is a non-integral multiple of a frequency of a system voltage (VGR, VGS, VGT). The non-integral multiple is 3.5, for example.

摘要翻译： 一种与电压源转换器（102）一起使用的控制装置包括支脚（104），每个支脚由多个具有电容器（203）的转换器模块（108）构成。 每个腿部具有正侧的第一端子和负极侧的第二端子。 控制装置可操作以产生用于操作转换器模块以操作转换器模块的命令脉冲。 指令脉冲具有系统电压（VGR，VGS，VGT）的频率的非整数倍的频率。 例如，非积分倍数为3.5。

公开(公告)号：EP1903213A3

公开(公告)日：2011-05-25

申请号：EP07016313.4

申请日：2007-08-20

申请人： Hitachi, Ltd. ,  FUJI HEAVY INDUSTRIES, LTD.

发明人： Oohara, Shinya ,  Ichinose, Masaya ,  Futami, Motoo ,  Tsutsumi, Kazuya ,  Shiraishi, Takashi ,  Yoshida, Shigeo ,  Komiyama, Hajime ,  Sugino, Junichi

IPC分类号： F03D7/02

CPC分类号： F03D7/047 ,  F03D7/0224 ,  F03D7/043 ,  F05B2270/1011 ,  F05B2270/107 ,  F05B2270/1071 ,  F05B2270/327 ,  F05B2270/328 ,  Y02E10/723

摘要： At the present invention, a pitch controller (111), uninterruptible power supply (112), and rotational speed detector (114) are disposed in the rotor (1) in a wind turbine. When a slip ring failure or wire breakage occurs, the pitch controller (111) internally creates a pitch angle command so as to control the pitch angle.
Accordingly, even if the slip ring (7) between the rotor (1) and nacelle (2) fails in the wind turbine, pitch angle control is performed reliably.

公开(公告)号：EP2871764A3

公开(公告)日：2015-08-19

申请号：EP14192231.0

申请日：2014-11-07

申请人： Hitachi, Ltd.

发明人： Yoshihara, Tohru ,  Katoh, Shuji ,  Inoue, Shigenori ,  Eguchi, Yoshio ,  Ichinose, Masaya

IPC分类号： H02M7/483 ,  H02M7/49 ,  H02J3/18 ,  H02J3/32

CPC分类号： H02M7/483 ,  H02J3/1857 ,  H02J3/32 ,  H02M2007/4835 ,  Y02E40/26

摘要： A power conversion device (1, 1A, 1B), which limits a zero-phase current without using a reactor, includes clusters (12uv, 12vw, and 12wu) in each of which six unit cells (121) are connected in series; and a transformer (11) that has legs (113uv, 113vw, 113wu) on each of which a primary winding (111uv, 111vw, 111wu) and a secondary winding (112uv, 112vw, 112wu) are wound for magnetic coupling. The both ends of the secondary winding (112uv, 112vw, 112wu) are connected to the both ends of the cluster (12uv, 12vw, 12wu).

公开(公告)号：EP2645552A2

公开(公告)日：2013-10-02

申请号：EP13154544.4

申请日：2013-02-08

申请人： Hitachi, Ltd.

发明人： Yamamoto, Takayoshi ,  Ichinose, Masaya ,  Bando, Akira ,  Yamashita, Keiichi ,  Inoue, Shigenori ,  Yoshihara, Toru ,  Eguchi, Yoshio ,  Sakuchi, Osamu ,  Katoh, Shuji ,  Ito, Tomomichi

IPC分类号： H02M1/096 ,  H02M7/219 ,  H02M5/458 ,  H02M7/5387

CPC分类号： H02M7/12 ,  H02M1/08 ,  H02M7/217 ,  H02M7/48 ,  H02M7/483 ,  H02M2001/0006 ,  H02M2007/4835

摘要： Problem to be Solved
A switching element of a power converter generates a low voltage, using a current flowing in the power converter, and supplies a power to drive itself.
Solution
A switching element 108 of a power converter for conversion from direct current into alternate current or from alternate current into direct current includes: a terminal 208 and a terminal 209 which are used in building the switching element 108 itself in the power converter; a capacitor 203, a high-side controllable switch 201H and a low-side controllable switch 201L enabling outputting the voltage of the capacitor 203, the voltage being output between the terminal 208 and the terminal 209, and a self-supply power source 206 for supplying a power to drive the bi-directional chopper switching element 108 itself, using a current flowing in the capacitor 203.

公开(公告)号：EP1903213B1

公开(公告)日：2012-10-10

申请号：EP07016313.4

申请日：2007-08-20

申请人： Hitachi, Ltd. ,  FUJI HEAVY INDUSTRIES, LTD.

发明人： Oohara, Shinya ,  Ichinose, Masaya ,  Futami, Motoo ,  Tsutsumi, Kazuya ,  Shiraishi, Takashi ,  Yoshida, Shigeo ,  Komiyama, Hajime ,  Sugino, Junichi

IPC分类号： F03D7/04

CPC分类号： F03D7/047 ,  F03D7/0224 ,  F03D7/043 ,  F05B2270/1011 ,  F05B2270/107 ,  F05B2270/1071 ,  F05B2270/327 ,  F05B2270/328 ,  Y02E10/723

公开(公告)号：EP1903213A2

公开(公告)日：2008-03-26

申请号：EP07016313.4

申请日：2007-08-20

申请人： Hitachi, Ltd. ,  FUJI HEAVY INDUSTRIES, LTD.

发明人： Oohara, Shinya ,  Ichinose, Masaya ,  Futami, Motoo ,  Tsutsumi, Kazuya ,  Shiraishi, Takashi ,  Yoshida, Shigeo ,  Komiyama, Hajime ,  Sugino, Junichi

IPC分类号： F03D7/02

CPC分类号： F03D7/047 ,  F03D7/0224 ,  F03D7/043 ,  F05B2270/1011 ,  F05B2270/107 ,  F05B2270/1071 ,  F05B2270/327 ,  F05B2270/328 ,  Y02E10/723

摘要： At the present invention, a pitch controller (111), uninterruptible power supply (112), and rotational speed detector (114) are disposed in the rotor (1) in a wind turbine. When a slip ring failure or wire breakage occurs, the pitch controller (111) internally creates a pitch angle command so as to control the pitch angle.
Accordingly, even if the slip ring (7) between the rotor (1) and nacelle (2) fails in the wind turbine, pitch angle control is performed reliably.

摘要翻译： 在本发明中，变桨控制器（111），不间断电源（112）和转速检测器（114）设置在风力涡轮机的转子（1）中。 当发生滑环故障或断线时，俯仰控制器（111）内部产生俯仰角指令，以便控制桨距角。 因此，即使风力涡轮机中的转子（1）和机舱（2）之间的滑环（7）发生故障，也能够可靠地进行俯仰角控制。

公开(公告)号：EP2871764B1

公开(公告)日：2018-06-27

申请号：EP14192231.0

申请日：2014-11-07

申请人： Hitachi, Ltd.

发明人： Yoshihara, Tohru ,  Katoh, Shuji ,  Inoue, Shigenori ,  Eguchi, Yoshio ,  Ichinose, Masaya

IPC分类号： H02M7/483 ,  H02M7/49 ,  H02J3/18 ,  H02J3/32

CPC分类号： H02M7/483 ,  H02J3/1857 ,  H02J3/32 ,  H02M2007/4835 ,  Y02E40/26

摘要： A power conversion device (1, 1A, 1B), which limits a zero-phase current without using a reactor, includes clusters (12uv, 12vw, and 12wu) in each of which six unit cells (121) are connected in series; and a transformer (11) that has legs (113uv, 113vw, 113wu) on each of which a primary winding (111uv, 111vw, 111wu) and a secondary winding (112uv, 112vw, 112wu) are wound for magnetic coupling. The both ends of the secondary winding (112uv, 112vw, 112wu) are connected to the both ends of the cluster (12uv, 12vw, 12wu).

公开(公告)号：EP2905889B1

公开(公告)日：2017-12-27

申请号：EP15150339.8

申请日：2015-01-07

申请人： Hitachi, Ltd.

发明人： Ishikura, Yuki ,  Bandou, Akira ,  Kokura, Shin ,  Ichinose, Masaya ,  Ishikawa, Masakazu ,  Fujita, Ryou

IPC分类号： H02M1/084 ,  H02M1/00 ,  H02M7/483

CPC分类号： H02M7/483 ,  H02M1/0845 ,  H02M2001/0003 ,  H02M2007/4835

摘要： A power conversion apparatus (116a) includes a cell (105) which includes an energy storage element (204) and a switching device (202, 203) and which outputs either of a positive or negative voltage and a zero voltage relying on a voltage of the energy storage element by on or off of the switching device; an arm (104) in which one or a plurality of the cells (105) are serially connected; a power conversion circuit (103) which includes the arm (104) in plurality and which is capable of converting an alternating current to a direct current or converting a direct current to an alternating current; a central control device (107) which collectively controls each of the cells (105); a plurality of intermediate control devices (113) which are daisy-chain connected to the central control device (107) through an optical fiber cable (111); and a cell control device (213) which is connected to the intermediate control device (113) and which controls each of the cells (105). To AC terminals U, V, and W of each phase, one end of each serial circuit is connected. To DC terminals P and N, the other end of each of the serial circuits is connected in parallel.

公开(公告)号：EP2728722A2

公开(公告)日：2014-05-07

申请号：EP13181750.4

申请日：2013-08-27

申请人： Hitachi Ltd.

发明人： Inoue, Shigenori ,  Katoh, Shuji ,  Bando, Akira ,  Kiyofuji, Yasuhiro ,  Eguchi, Yoshio ,  Ichinose, Masaya ,  Yamamoto, Takayoshi

IPC分类号： H02M1/00

CPC分类号： H02M7/2173 ,  H02M5/10 ,  H02M5/4585 ,  H02M7/483 ,  H02M7/5388 ,  H02M2007/4835

摘要： In the present invention, provided is a power conversion apparatus (102) in which at least one energy storage element and at least one switching element are included, a plurality of series circuits of a transformer winding and an arm (104U, 104V, 104W) in which one or a plurality of at least two-terminal unit converters (105) which depend on ON/OFF of the switching element and supply a zero voltage or a voltage depending on a voltage of the energy storage element are connected in series are connected in parallel, and a multi-phase power source or a multi-phase load is connected to another winding of the transformer (103), and the parallel-connection point is set as a DC terminal, and which includes means (106) for controlling a current flowing through each of the arms (104U, 104V, 104W) to have a phase and amplitude different from each other.