公开(公告)号：EP2893606A1

公开(公告)日：2015-07-15

申请号：EP12755791.6

申请日：2012-09-03

Applicant: Vestas Wind Systems A/S

Inventor： KJÆR, Philip Carne ,  VALCAN, Dumitru-Mihai ,  HELLE, Lars

IPC: H02J3/38 ,  F03D7/00 ,  H02P9/00

CPC classification number: H02P9/14 ,  F03D9/255 ,  H02J3/386 ,  H02J5/00 ,  Y02E10/763

Abstract: The present invention relates to a connection system for connecting a power generator to a DC electrical power system, with a controllable voltage source unit functionally connected in series with the power generator to receive AC electrical power from the power generator, and to generate an AC electrical power output accordingly, and a rectifier arranged to receive AC electrical power output from said voltage source unit and to rectify the AC electrical power output to a DC electrical power to be provided to the DC electrical power system. The invention also relates to method for connecting a power generator to a DC electrical power system.

Abstract translation: 本发明涉及一种用于将发电机连接到直流电力系统的连接系统，其中可控电压源单元与功率发生器串联功能连接以接收来自发电机的交流电力，并产生交流电 功率输出，以及整流器，其布置成接收从所述电压源单元输出的AC电力，并且将AC电力输出整流到DC电力以提供给DC电力系统。 本发明还涉及将发电机连接到直流电力系统的方法。

公开(公告)号：EP2227856B1

公开(公告)日：2012-04-18

申请号：EP08865971.9

申请日：2008-12-17

Applicant: Vestas Wind Systems A/S

Inventor： JØRGENSEN, Allan Holm ,  HELLE, Lars ,  SCHAIER, Leonard

IPC: H02P9/00 ,  F03D9/00 ,  G01R21/127 ,  H02J3/18 ,  H02J3/42 ,  H02P9/26

CPC classification number: H02J3/16 ,  F03D7/0284 ,  F03D7/048 ,  F05B2270/337 ,  H02J3/386 ,  H02P9/007 ,  H02P21/00 ,  H02P2101/15 ,  Y02E10/723 ,  Y02E10/763 ,  Y02E40/34

Abstract: The present invention relates to a method for increasing a total reactive power capability of a cluster of wind turbines operationally connected to a grid. The method comprises the steps of generating a voltage value representative of a grid voltage level, determining a total required reactive power value based on the voltage value, and activating at least one wind turbine in said cluster to increase the total reactive power capability from a present value to the required total reactive power value by a predetermined amount. Moreover, the present invention relates to a system suitable for carrying out the before-mentioned method.

公开(公告)号：EP2362981A1

公开(公告)日：2011-09-07

申请号：EP09752776.6

申请日：2009-10-27

Applicant: Vestas Wind Systems A/S

Inventor： GUPTA, Saurabh ,  HELLE, Lars ,  TRIPATHI, Anshuman ,  JÖRGENSEN, Allan Holm ,  SHU YU, Cao

IPC: H02P9/10 ,  H02P21/00

CPC classification number: H02P21/12 ,  H02P9/105 ,  H02P9/107 ,  H02P21/22 ,  H02P23/30 ,  H02P27/12 ,  H02P2101/15

Abstract: A method for controlling a variable speed wind turbine generator is disclosed. The generator is connected to a power converter comprising switches. The generator comprises a stator and a set of terminals connected to the stator and to the switches of the power converter. The method comprises: determining a stator flux reference value corresponding to a generator power of a desired magnitude, determining an estimated stator flux value corresponding to an actual generator power, determining a difference between the determined stator flux reference value and the estimated stator flux value, and operating said switches in correspondence to the determined stator flux reference value and the estimated stator flux value to adapt at least one stator electrical quantity to obtain said desired generator power magnitude.

公开(公告)号：EP2126352B1

公开(公告)日：2010-10-27

申请号：EP08715591.7

申请日：2008-03-19

Applicant: Vestas Wind Systems A/S

Inventor： HELLE, Lars ,  KJÆR, Philip, Richard, Jacobsen, Carne ,  LINDHOLM, Morten ,  BENDIXEN, Flemming, Buus ,  BOLDEA, Ion

IPC: F03D9/00 ,  G01R33/12

CPC classification number: F03D13/10 ,  F03D9/25 ,  F05B2220/7066 ,  F05B2220/7068 ,  F05B2230/00 ,  G01R33/1215 ,  H01F13/003 ,  H02K7/1838 ,  H02K15/03 ,  Y02E10/721 ,  Y02E10/725 ,  Y02E10/726 ,  Y02P70/523 ,  Y10T29/49002 ,  Y10T29/49009 ,  Y10T29/49012 ,  Y10T29/49073

Abstract: The invention relates to a method for establishing a wind turbine generator with one or more Permanent Magnet (PM) rotors. The method comprises the steps of: manufacturing a generator prepared for taking one or more PM rotors, manufacturing one or more rotors comprising a plurality of holding means prepared for retaining PM material, mounting substantially non-magnetized PM material prepared for magnetization in said holding means before or after said one or more rotors are mounted in said generator, connecting a magnetization system for magnetizing said PM material in the generator, and magnetizing said PM material with said magnetization system. The invention also relates to a wind turbine nacelle, a wind turbine comprising said wind turbine nacelle and use of a wind turbine.

公开(公告)号：EP2227856A1

公开(公告)日：2010-09-15

申请号：EP08865971.9

申请日：2008-12-17

Applicant: Vestas Wind Systems A/S

Inventor： JØRGENSEN, Allan Holm ,  HELLE, Lars ,  SCHAIER, Leonard

IPC: H02P9/00 ,  F03D9/00 ,  G01R21/127 ,  H02J3/18 ,  H02J3/42 ,  H02P9/26

CPC classification number: H02J3/16 ,  F03D7/0284 ,  F03D7/048 ,  F05B2270/337 ,  H02J3/386 ,  H02P9/007 ,  H02P21/00 ,  H02P2101/15 ,  Y02E10/723 ,  Y02E10/763 ,  Y02E40/34

Abstract: The present invention relates to a method for increasing a total reactive power capability of a cluster of wind turbines operationally connected to a grid. The method comprises the steps of generating a voltage value representative of a grid voltage level, determining a total required reactive power value based on the voltage value, and activating at least one wind turbine in said cluster to increase the total reactive power capability from a present value to the required total reactive power value by a predetermined amount. Moreover, the present invention relates to a system suitable for carrying out the before-mentioned method.

公开(公告)号：EP2132862A1

公开(公告)日：2009-12-16

申请号：EP08715590.9

申请日：2008-03-19

Applicant: Vestas Wind Systems A/S

Inventor： HELLE, Lars ,  LINDHOLM, Morten ,  BENDIXEN, Flemming, Buus

IPC: H02K11/00 ,  F03D7/02 ,  F03D7/04 ,  G01R31/34 ,  H02K7/18 ,  H02K21/12 ,  H02K21/14 ,  H02P9/32

CPC classification number: G01R33/1215 ,  F03D9/25 ,  F05B2220/7068 ,  H02K7/1838 ,  H02K11/0094 ,  H02K11/20 ,  H02K11/35 ,  H02K15/03 ,  Y02E10/725 ,  Y10T29/49009

Abstract: A method for estimating the magnetization level of one or more permanent magnets established in one or more permanent magnet rotors of a wind turbine generator includes the steps of: establishing one or more magnetization sensors at the stator of the generator, connecting the one or more magnetization sensors to a measuring mechanism, processing measured data in the measuring mechanism, and establishing values of magnetization. Furthermore the invention also relates to a wind turbine.

公开(公告)号：EP1996815A1

公开(公告)日：2008-12-03

申请号：EP07722543.1

申请日：2007-03-19

Applicant: Vestas Wind Systems A/S

Inventor： HELLE, Lars ,  NIEUWENHUIZEN, John, Johannes Mathias, Hubertus ,  LINDHOLM, Morten ,  OTTESEN, Jari

IPC: F03D1/06 ,  F03D7/02 ,  F03D11/00

CPC classification number: F03D1/065 ,  F03D7/0272 ,  F03D9/255 ,  F03D80/00 ,  F03D80/70 ,  H02J3/386 ,  Y02E10/721 ,  Y02E10/723 ,  Y02E10/763

Abstract: The invention relates to a protection system for an electric generator of a wind turbine comprising at least one current path from the non drive end of the generator shaft to a ground potential, and at least one alternating current path from the drive end of the generator shaft to the ground potential. The invention also relates to a wind turbine and use hereof.

公开(公告)号：EP1908163A1

公开(公告)日：2008-04-09

申请号：EP05756143.3

申请日：2005-07-01

Applicant: Vestas Wind Systems A/S

Inventor： KJÆR, Philip, Richard, Jacobsen, Carne ,  HELLE, Lars

IPC: H02M5/458

CPC classification number: H02M7/493 ,  F03D9/255 ,  F03D13/20 ,  H02J3/38 ,  H02J3/386 ,  H02M5/458 ,  H02M2001/325 ,  Y02E10/72 ,  Y02E10/763 ,  Y10T307/707

Abstract: The invention relates to a variable rotor speed wind turbine transmitting AC electric power to a utility grid. The wind turbine includes at least one AC generator and at least two power electronic converter units. Further, it includes means for transforming at least one nominal output value of the generator to at least one different nominal input value of the at least two power electronic converter units. The invention also relates to a wind park and a method of transmitting AC electric power to a utility grid from a variable rotor speed wind turbine as well as a method of servicing or inspecting a variable rotor speed wind turbine.

Abstract translation: 本发明涉及的可变转子速度的风力涡轮机发射AC电力给公用电网。 该风力涡轮机包括至少一个交流发电机和至少两个电力电子转换器单元。 此外，它包括用于将所述发电机中的至少一个标称输出值，以在所述至少两个电力电子转换器单元中的至少一个不同的标称输入值。 因此，该发明涉及一种风力发电场和发射AC电力，以从可变转子速度风力涡轮机的电网以及服务的方法或检查可变转子速度的风力涡轮机的方法。