公开(公告)号：US08867241B2

公开(公告)日：2014-10-21

申请号：US13139921

申请日：2008-12-17

申请人： Gunnar Asplund ,  Erik Koldby

发明人： Gunnar Asplund ,  Erik Koldby

IPC分类号： H02J3/36

CPC分类号： H02M7/7575 ,  H02J3/36 ,  H02M7/797 ,  Y02E60/60

摘要： A plant for transmitting electric power through HVDC includes two converter stations interconnected by a monopolar direct voltage network and each having an alternating voltage side for feeding electric power from one of said alternating voltage sides to the other. Each station has a line commutated converter. The plant is upgraded by making the direct voltage network bipolar, providing each station with a Voltage Source Converter and providing two switches for both line commutated converters or both Voltage Source Converters and a device configured to control said four switches.

摘要翻译： 用于通过HVDC传输电力的设备包括通过单极直流电压网互连的两个转换站，每个转换站具有用于将电力从所述交流电压侧之一馈送到另一个的交流电压侧。 每个站都有一个换向换流器。 该工厂通过直流电压网络双极性升级，为每个站提供电压源转换器，并为两个线路换向转换器或两个电压源转换器提供两个开关，以及配置为控制所述四个开关的器件。

公开(公告)号：US20110310641A1

公开(公告)日：2011-12-22

申请号：US13139921

申请日：2008-12-17

申请人： Gunnar Asplund ,  Erik Koldby

发明人： Gunnar Asplund ,  Erik Koldby

IPC分类号： H02J3/36 ,  H05K13/00

CPC分类号： H02M7/7575 ,  H02J3/36 ,  H02M7/797 ,  Y02E60/60

摘要： A plant for transmitting electric power through HVDC includes two converter stations interconnected by a monopolar direct voltage network and each having an alternating voltage side for feeding electric power from one of said alternating voltage sides to the other. Each station has a line commutated converter. The plant is upgraded by making the direct voltage network bipolar, providing each station with a Voltage Source Converter and providing two switches for both line commutated converters or both Voltage Source Converters and a device configured to control said four switches.

摘要翻译： 用于通过HVDC传输电力的设备包括通过单极直流电压网互连的两个转换站，每个转换站具有用于将电力从所述交流电压侧之一馈送到另一个的交流电压侧。 每个站都有一个换向换流器。 该工厂通过直流电压网络双极性升级，为每个站提供电压源转换器，并为两个线路换向转换器或两个电压源转换器提供两个开关，以及配置为控制所述四个开关的器件。

公开(公告)号：US20090273187A1

公开(公告)日：2009-11-05

申请号：US12413025

申请日：2009-03-27

申请人： Lars Gertmar ,  Leif-Erik Wraae ,  Helle Wraae ,  Hans C. Christensen ,  Juhani Mantere ,  Erik Koldby

发明人： Lars Gertmar ,  Leif-Erik Wraae ,  Helle Wraae ,  Hans C. Christensen ,  Juhani Mantere ,  Erik Koldby

IPC分类号： H02P9/04

CPC分类号： F03D7/026 ,  F03D9/25 ,  F03D80/70 ,  F05B2240/20 ,  F05B2270/101 ,  F05B2270/1095 ,  F05B2270/32 ,  F05B2270/327 ,  Y02E10/723 ,  Y02E10/725

摘要： A generator of a wind turbine is at low power conditions operated as a motor by control of a frequency converter to feed electric power from an electric power transmission network to the generator for raising the speed of the wind rotor above a predetermined level for lubricating rotating parts of a drive train of the wind turbine.

摘要翻译： 风力发电机的发电机处于作为电动机操作的低功率状态，通过控制变频器将电力从电力传输网络供给到发电机，以将风力转子的速度提高到预定水平以上以润滑旋转部件 的风力涡轮机的传动系。

公开(公告)号：US20090218820A1

公开(公告)日：2009-09-03

申请号：US12395088

申请日：2009-02-27

申请人： Lars Gertmar ,  Erik Koldby ,  Hans C. Christensen ,  Jouko Niiranen ,  Hakan Korske ,  Leif-Erik Wraae

发明人： Lars Gertmar ,  Erik Koldby ,  Hans C. Christensen ,  Jouko Niiranen ,  Hakan Korske ,  Leif-Erik Wraae

IPC分类号： H02P9/04

CPC分类号： H02J3/42 ,  H02P9/46 ,  H02P2101/15

摘要： A power converter arrangement for connecting an induction generator to an electric power network comprises a first path provided for transferring electric power from the induction generator to the electric power network during a first operation condition, and a second path provided for transferring electric power from the induction generator to the electric power network during a second operation condition, where the first path includes an AC-AC converter and the second path includes a switch. A capacitor arrangement is interconnected between the induction generator and the first and second paths and a first AC reactor device is interconnected between the capacitor arrangement and the first and second paths, where the capacitor arrangement is provided for compensating for a magnetization current of the induction generator.

摘要翻译： 一种用于将感应发电机连接到电力网络的功率转换器装置包括：第一路径，其设置用于在第一操作状态期间将电力从感应发电机传递到电力网络;以及第二路径，用于从感应传输电力 在第二操作条件期间发电机到电力网络，其中第一路径包括AC-AC转换器，并且第二路径包括开关。 在感应发电机和第一和第二路径之间互连电容器布置，并且第一AC电抗器装置互连在电容器装置与第一和第二路径之间，其中电容器装置被设置用于补偿感应发电机的磁化电流 。

公开(公告)号：US07667439B2

公开(公告)日：2010-02-23

申请号：US12395088

申请日：2009-02-27

申请人： Lars Gertmar ,  Erik Koldby ,  Hans C. Christensen ,  Jouko Niiranen ,  Leif-Erik Wraae ,  H{dot over (a)}kan Korske, legal representative

发明人： Lars Gertmar ,  Erik Koldby ,  Hans C. Christensen ,  Jouko Niiranen ,  Leif-Erik Wraae

IPC分类号： H20P9/46

CPC分类号： H02J3/42 ,  H02P9/46 ,  H02P2101/15

摘要： A power converter arrangement for connecting an induction generator to an electric power network comprises a first path provided for transferring electric power from the induction generator to the electric power network during a first operation condition, and a second path provided for transferring electric power from the induction generator to the electric power network during a second operation condition, where the first path includes an AC-AC converter and the second path includes a switch. A capacitor arrangement is interconnected between the induction generator and the first and second paths and a first AC reactor device is interconnected between the capacitor arrangement and the first and second paths, where the capacitor arrangement is provided for compensating for a magnetization current of the induction generator.

摘要翻译： 一种用于将感应发电机连接到电力网络的功率转换器装置包括：第一路径，其设置用于在第一操作状态期间将电力从感应发电机传递到电力网络;以及第二路径，用于从感应传输电力 在第二操作条件期间发电机到电力网络，其中第一路径包括AC-AC转换器，并且第二路径包括开关。 在感应发电机和第一和第二路径之间互连电容器布置，并且第一AC电抗器装置互连在电容器装置与第一和第二路径之间，其中设置电容器装置以补偿感应发电机的磁化电流 。