公开(公告)号：WO2021028003A1

公开(公告)日：2021-02-18

申请号：PCT/DK2020/050232

申请日：2020-08-12

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： GERÇEK, Cem Özgür ,  HELLE, Lars ,  BIRIS, Ciprian

IPC: H02M1/32 ,  H02M7/483 ,  H02J3/38

Abstract: This disclosure proposes procedures and systems for discharging system capacitors and de-energizing power transmission systems having Modular Multilevel Converter (MMC) topologies by intelligent control of MMC cell components including configuration of bypass and insert switches using integrated DC choppers to effectively de-energize MMC cell capacitors and/or DC-link capacitors under operating conditions such as after a normal stop, for protection against over-voltages, dumping turbine energy, and under certain hardware fault conditions.

公开(公告)号：WO2017198269A1

公开(公告)日：2017-11-23

申请号：PCT/DK2017/050155

申请日：2017-05-16

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： TRANKJÆR, Søren Viisholm ,  HELLE, Lars ,  PETERSEN, Torben

IPC: H01F38/14 ,  H02J3/38

Abstract: Aspects of the present disclosure are generally directed to using a rotary transformer to transfer power for a wind turbine generator. Certain aspects of the present disclosure are directed to a multi-rotor wind turbine. The multi-rotor wind turbine generally includes a plurality of rotors, a plurality of electrical generators, each coupled to one of the plurality of rotors, and one or more rotary transformers configured to transfer power between the electrical generators and a power grid. In some aspects, each rotary transformer comprises a first winding coupled to one or more electrical generators of the plurality of electrical generators, and a second winding magnetically coupled to the first winding and coupled to the power grid, wherein the first winding is rotatable with respect to the second winding.

Abstract translation: 本公开的各方面通常涉及使用旋转变压器来传输用于风力涡轮发电机的功率。 本公开的某些方面涉及多转子风力涡轮机。 多转子风力涡轮机通常包括多个转子，多个发电机，每个发电机耦合到多个转子中的一个，以及一个或多个旋转变压器，配置为在发电机和电网之间传输电力。 在一些方面，每个旋转变压器包括耦合到所述多个发电机中的一个或多个发电机的第一绕组以及磁耦合到所述第一绕组并耦合到所述电力网的第二绕组，其中所述第一绕组可相对于所述第一绕组 到第二圈。

公开(公告)号：WO2016066169A1

公开(公告)日：2016-05-06

申请号：PCT/DK2015/050322

申请日：2015-10-19

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： ABEYASEKERA, Tusitha ,  DOAN, Duy Duc ,  HELLE, Lars ,  ANDERSEN, Søren ,  NIELSEN, John Godsk

IPC: H02J3/38 ,  F03D7/02 ,  F03D7/04

CPC classification number: H02J3/386 ,  F03D7/042 ,  F03D9/255 ,  H02M2001/0003 ,  H02P2101/15 ,  Y02E10/723 ,  Y02E10/763

Abstract: A wind turbine converter system (3) with a rectifier (4) and an inverter (5) and a converter controller (11) has at least first and second converter strings (24, 25). The converter system is controlled by a master-converter controller (13) and a slave-converter controller (12). The master-converter controller (13) controls the first converter string (25) and the slave-converter controller (12) controls the second converter string (24). The master-converter controller (13) receives commands from a superordinate wind turbine controller (21), provides the slave-converter controller (12) with string-control commands on the basis of the superordinate control commands, and controls the conversion operation of the first converter string (25) on the basis of the superordinate control command. The slave-converter controller (12) receives the string-control commands from the master-converter controller (13) and controls the conversion operation of the second converter string on the basis of the string-control commands received. The first and the second converter strings (24, 25) can be arranged in a bipolar configuration giving access to a neutral point (62). Fault detection can be performed based on the current through the neutral (62). The system is capable of fault ride-through. Also, in case of failure of the master-converter controller (13), a redundant unit takes its place.

Abstract translation: 具有整流器（4）和逆变器（5）和转换器控制器（11）的风力涡轮机转换器系统（3）具有至少第一和第二转换器串（24,25）。 转换器系统由主转换器控制器（13）和从转换器控制器（12）控制。 主转换器控制器（13）控制第一转换器串（25），从转换器控制器（12）控制第二转换器串（24）。 主转换器控制器（13）从上级风力发电机控制器（21）接收命令，基于上级控制命令向从变频器控制器（12）提供串控制命令，并控制转换器控制器 第一转换器串（25），基于上级控制命令。 从转换器控制器（12）从主转换器控制器（13）接收字符串控制命令，并且基于所接收的字符串控制命令来控制第二转换器串的转换操作。 第一和第二转换器串（24,25）可以布置成提供访问中性点（62）的双极配置。 可以根据通过中性点的电流进行故障检测（62）。 该系统能够进行故障穿越。 此外，在主转换器控制器（13）发生故障的情况下，冗余单元就位。

公开(公告)号：WO2014079453A2

公开(公告)日：2014-05-30

申请号：PCT/DK2013/050374

申请日：2013-11-13

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： DONESCU, Victor ,  HELLE, Lars

IPC: H02J3/00

CPC classification number: H02H9/045 ,  F03D7/0272 ,  F03D9/25 ,  F03D17/00 ,  F03D80/80 ,  F05B2270/328 ,  F05B2270/80 ,  H02H9/02 ,  H02H9/041 ,  H02P29/0241 ,  Y02E10/723 ,  Y02E10/725

Abstract: A method is provided for reducing an impact of an unbalanced short circuit event that occurs in a polyphase permanent magnet generator of a wind turbine. According to the method, an unbalanced short circuit event is detected in the generator of the wind turbine, and, in response to detecting the unbalanced short circuit event, at least one phase of the generator is shorted at a switch-point between the generator and a converter of the wind turbine to create a balanced short circuit in the generator. By doing so, the torque response of the generator is altered to avoid high amplitude torque oscillations that would otherwise occur as a result of the unbalanced short circuit event.

Abstract translation: 提供了一种用于减少在风力涡轮机的多相永磁发电机中发生的不平衡短路事件的影响的方法。 根据该方法，在风力发电机的发电机中检测到不平衡短路事件，并且响应于检测到不平衡短路事件，发电机的至少一相在发电机和发电机之间的切换点处短路 风力涡轮机的转换器，以在发电机中产生平衡的短路。 通过这样做，发电机的转矩响应被改变以避免由于不平衡的短路事件而产生的高幅度扭矩振荡。

公开(公告)号：WO2007107158A1

公开(公告)日：2007-09-27

申请号：PCT/DK2007/000137

申请日：2007-03-19

Applicant: VESTAS WIND SYSTEMS A/S ,  HELLE, Lars ,  NIEUWENHUIZEN, John ,  LINDHOLM, Morten ,  OTTESEN, Jari

Inventor： HELLE, Lars ,  NIEUWENHUIZEN, John ,  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 (28) for an electric generator (9) of a wind turbine (1) comprising at least one current path (27) from the non drive end (29) of the generator shaft (8) to a ground potential (22), and at least one alternating current path (20) from the drive end (30) of the generator shaft (8) to the ground potential. The invention also relates to a wind turbine and use hereof.

Abstract translation: 本发明涉及一种用于风力涡轮机（1）的发电机（9）的保护系统（28），其包括从发电机轴（8）的非驱动端（29）到至少一个电流路径（27）的至少一个电流路径 接地电位（22）和从发电机轴（8）的驱动端（30）到地电势的至少一个交流电路（20）。 本发明还涉及一种风力涡轮机及其用途。

公开(公告)号：WO2016165720A1

公开(公告)日：2016-10-20

申请号：PCT/DK2016/050103

申请日：2016-04-11

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： NIELSEN, John Godsk ,  ANDERSEN, Søren ,  HELLE, Lars ,  DOAN, Duy Duc

IPC: H02J1/10 ,  H02J3/38

CPC classification number: H02J3/34 ,  H02J3/36 ,  H02J3/386 ,  H02M5/42 ,  H02M2001/325 ,  Y02E10/763 ,  Y02E60/60

Abstract: In a full-scale converter system both the grid-side inverter unit and the generator-side inverter unit have a series connection of parallel inverters and form a generator-side and grid-side voltage-center-point at a voltage level between those of the inverters connected in series. The voltage-center-points are electrically connected by a center-line conductor that has a cross- section between 30% and 70% of that of a positive or negative potential conductor. The converter system continues conversion operation in the event of a fault in an inverter of a first converter-string, with non-faulty inverters of the converter system, as the center-line conductor is dimensioned by said cross-section to carry a compensation current resulting from an unbalanced active power-output.

Abstract translation: 在全尺寸转换器系统中，并网逆变器单元和发电机侧逆变器单元具有并联逆变器的串联连接，并形成发电机侧和电网侧的电压中心点， 逆变器串联连接。 电压中心点通过中心线导体电连接，中心线导体的横截面积为正或负电位导体的30％至70％。 在转换器系统的无故障逆变器的第一转换器串的逆变器发生故障的情况下，转换器系统继续转换操作，因为中心线导体的尺寸由所述横截面来承载补偿电流 由于有功功率不平衡导致的。

公开(公告)号：WO2015043602A1

公开(公告)日：2015-04-02

申请号：PCT/DK2014/050289

申请日：2014-09-17

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： HELLE, Lars ,  TEODORESCU, Remus

IPC: H02H3/24 ,  F03D7/02 ,  H02H7/26 ,  H02J3/12

CPC classification number: H02H7/26 ,  F03D7/0284 ,  F03D9/255 ,  F05B2260/80 ,  H02H3/083 ,  H02H3/24 ,  H02M5/458 ,  Y02E10/723

Abstract: A wind turbine generator 1 is connected to a section 2 of an electricity grid 3 via a converter 4, which converts the ac output power from the generator into three-phase electric power at the voltage and frequency of the grid 3. The converter 4 comprises silicon carbide transistors which act as ON-OFF switches which are controlled so as to create a voltage profile which is the same as that of the grid voltage. Each grid section 2, 2' has a respective circuit breaker 10, 10' which disconnects the associated section from the remainder of the grid 3 in the event of an abnormally high current. The converter 2 includes a fault detector 11 arranged to detect grid faults, such as an abnormally low voltage level which, in response, generates an alarm signal which causes a high-level transient current to be supplied to the grid 3 sufficient to trip the circuit breaker 10' so as to disconnect the faulty section of the grid. By using silicon carbide transistors, which can withstand high operating temperatures, a higher-level current can be generated than would be the case with converters using conventional silicon transistors.

Abstract translation: 风力发电机1经由转换器4连接到电网3的部分2，转换器4将来自发电机的交流输出功率以电网3的电压和频率转换成三相电力。转换器4包括 用作开关开关的碳化硅晶体管，其被控制以产生与电网电压相同的电压分布。 每个电网部分2,2'都有一个相应的断路器10,10'，它们在异常高电流的情况下将相关部分与电网3的其余部分断开。 转换器2包括故障检测器11，其被布置成检测电网故障，例如异常低的电压电平，其响应地产生报警信号，其引起高电平瞬态电流被提供给电网3，足以使电路跳闸 断路器10'，以便断开电网的故障部分。 通过使用可承受高工作温度的碳化硅晶体管，可以产生比使用常规硅晶体管的转换器情况更高的电流。

公开(公告)号：WO2010079234A1

公开(公告)日：2010-07-15

申请号：PCT/EP2010/050280

申请日：2010-01-12

Applicant: VESTAS WIND SYSTEMS A/S ,  KJÆR, Philip Carne ,  HELLE, Lars

Inventor： KJÆR, Philip Carne ,  HELLE, Lars

IPC: H02M1/12 ,  H02M5/458 ,  H02J3/38

CPC classification number: H02M1/12 ,  H02J3/386 ,  Y02E10/763

Abstract: The present invention relates to a reconfigurable power converter module for a wind turbine facility adapted to supply electric power to an associated power supply grid. The reconfigurable power converter module comprises a frequency converter operatively connected to filter means, wherein said frequency converter and said filter means are mutually reconfigurable so as to suppress internal and/or internal resonances/harmonics.

Abstract translation: 本发明涉及一种用于风力涡轮机设备的可重新配置的功率转换器模块，其适于向相关联的电源网格供电。 可重构功率转换器模块包括可操作地连接到滤波器装置的变频器，其中所述变频器和所述滤波器装置是可互相重构的，以便抑制内部和/或内部谐振/谐波。

公开(公告)号：WO2009083445A1

公开(公告)日：2009-07-09

申请号：PCT/EP2008/067694

申请日：2008-12-17

Applicant: VESTAS WIND SYSTEMS A/S ,  JØRGENSEN, Allan Holm ,  HELLE, Lars ,  SCHAIER, Leonard

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.

Abstract translation: 本发明涉及一种用于提高可操作地连接到电网的风力发电机组的总无功功率能力的方法。 该方法包括以下步骤：产生代表电网电压电平的电压值，基于电压值确定总需要的无功功率值，以及激活所述集群中的至少一个风力涡轮机，以增加总体无功功率能力 值到所需的总无功功率值预定量。 此外，本发明涉及一种适于实施上述方法的系统。

公开(公告)号：WO2008116464A3

公开(公告)日：2008-10-02

申请号：PCT/DK2008/000114

申请日：2008-03-19

Applicant: VESTAS WIND SYSTEMS A/S ,  HELLE, Lars ,  KJÆR, Philip, Richard, Jacobsen, Carne ,  LINDHOLM, Morten ,  BENDIXEN, Flemming, Buus ,  BOLDEA, Ion

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

IPC: F03D9/00 ,  G01R33/12

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.

Abstract translation: 本发明涉及一种用于建立具有一个或多个永磁体（PM）转子的风力涡轮发电机的方法。 该方法包括以下步骤：制造准备用于取得一个或多个PM转子的发电机，制造一个或多个转子，该转子包括多个用于保持PM材料的保持装置，将准备用于磁化的基本上非磁化的PM材料安装在所述保持装置中 在所述一个或多个转子安装在所述发电机中之前或之后，连接用于磁化所述发电机中的所述PM材料的磁化系统，以及用所述磁化系统磁化所述PM材料。 本发明还涉及风力涡轮机机舱，包括所述风力涡轮机机舱的风力涡轮机和风力涡轮机的使用。