公开(公告)号：WO2022022793A1

公开(公告)日：2022-02-03

申请号：PCT/DK2021/050252

申请日：2021-07-30

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： CATROGA, Renato ,  ANDREASEN, Marcin Blazniak ,  DINCAN, Catalin Gabriel ,  HELLE, Lars

IPC: H05K7/20

Abstract: An electric modular system for connection to a hybrid power plant. An enclosure (CNT), e.g. a standard size container houses: 1) a first electric converter system (CV1) connected to an electric output of a wind turbine and generates a first DC output, 2) a second electric converter system (CV2) arranged connected to an output of a photovoltaic source (PV) or a battery (BT) and generates a second DC output, 3) an output electric converter system (CV0) receiving the first and second DC outputs and generates an electric output e.g. for connection to an electric grid. A cooling system (CLS) with a flow duct to receives air from outside and provides a controllable amount of cooling to the electric converter systems accordingly, e.g. via controllable flow resistive elements. A cooling controller (CC) senses output loads (L1, L2, L0) of the electric converter systems (CV1, CV2, CV0) and controls the cooling system (CLS) to direct an amount of cooling to the electric converter systems (CV1, CV2, CV0) as a function of their electric output loads (L1, L2, L0). Especially, back-to-back mounted sets of cabinets with modules of the electric converter system, and each with a dedicated cooling unit allows effective use of cooling capacity according to the actual electric load situation.

公开(公告)号：WO2021073704A1

公开(公告)日：2021-04-22

申请号：PCT/DK2020/050286

申请日：2020-10-14

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： HELLE, Lars ,  GERÇEK, Cem Özgür

IPC: F03D80/50

Abstract: A wind turbine system with a medium voltage (MV) converter system for converting electric power by the wind turbine generator. A housing, e.g. a placed on the ground near the wind turbine tower, encloses the MV converter to block access. An access door with a controllable locking mechanism is controlled by an access control system which unlocks the access door after execution of a safety access algorithm. This algorithm involves electrical disconnection of the MV converter and activating a motorized actuator to provide a physical separation between the electric terminals connected to the MV converter. A feedback signal is transmitted to outside the enclosure, that the physical separation has been established. Further, discharge procedures is activated to electrically discharge AC-filter capacitor(s) to filter harmonic components from the MV converter and DC cell capacitor(s) inside the MV converter. When said physical separation is established and a discharge criterion is met, a grounding switch is activated to electrically ground the MV converter, and subsequently, the access door is unlocked. This allows a person to provide service to the potentially dangerous MV equipment in a safe an automated way after request. The housing preferably has a control compartment where a person can request access and await opening of the access door for safe access to the MV converter.

公开(公告)号：WO2016206688A1

公开(公告)日：2016-12-29

申请号：PCT/DK2016/050170

申请日：2016-06-08

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： ABEYASEKERA, Tusitha ,  DOAN, Duy Duc ,  ANDERSEN, Gert Karmisholt ,  HELLE, Lars ,  PEDERSEN, Tune ,  NIELSEN, John Godsk ,  ANDERSEN, Søren

IPC: H02J3/38 ,  F03D9/00 ,  H02J3/42 ,  H02H9/00

CPC classification number: F03D7/0284 ,  F03D9/255 ,  H02H7/085 ,  H02H7/26 ,  H02H9/001 ,  H02J3/386 ,  H02J3/42 ,  Y02E10/72 ,  Y02E10/763

Abstract: A method, converter arrangement, and controller are disclosed for connecting an output of a converter with an electrical grid to control inrush currents into a grid filter assembly connected with the output of the converter, the electrical grid carrying an alternating current (AC) signal having one or more phases. The method includes determining a voltage of the AC signal and operating, after pre-charging a direct current (DC) link of the converter to a predetermined voltage, the converter using open-loop voltage control to produce an AC output signal that substantially matches the AC signal of the electrical grid. The open-loop voltage control is based on the determined voltage of the AC signal. The method further includes closing, after a predetermined amount of time of operating the converter using the open-loop voltage control, a switching device to thereby connect the output of the converter with the electrical grid.

Abstract translation: 公开了一种用于将转换器的输出与电网连接的方法，转换器布置和控制器，以控制与转换器的输出连接的电网滤波器组件的浪涌电流，电网承载交流（AC）信号，其具有 一个或多个阶段。 该方法包括确定AC信号的电压，并且在将转换器的直流（DC）链路预充电到预定电压之后，使用开环电压控制来操作，以产生基本匹配的转换器的AC输出信号 电网的交流信号。 开环电压控制基于所确定的AC信号电压。 该方法还包括在使用开环电压控制操作转换器的预定量的时间之后关闭开关装置，从而将转换器的输出与电网连接。

公开(公告)号：WO2016165719A1

公开(公告)日：2016-10-20

申请号：PCT/DK2016/050102

申请日：2016-04-11

Applicant: VESTAS WIND SYSTEMS A/S

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

IPC: H02P27/00 ,  H02P29/02 ,  H02M7/493

CPC classification number: H02M5/4585 ,  F03D9/255 ,  H02J3/386 ,  H02M7/493 ,  H02P27/00 ,  H02P27/04 ,  H02P29/02 ,  H02P29/032 ,  H02P2101/15 ,  H02P2201/03 ,  Y02E10/76

Abstract: A method of controlling a full-scale converter system in which 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 the inverters connected in series. The voltage-center-points are electrically connected by a center-line conductor. Conversion operation with a de-rated maximum active power-output is performed in response to at least one of (i) the grid-side inverter and (ii) the generator-side inverter of the first converter-string being disabled, by disabling active power production of at least one of (i) the grid-side inverter and (ii) the generator-side inverter of the second converter-string, or correspondingly reducing active power production of the second converter-string, thereby preventing a compensation current along the center-line conductor.

Abstract translation: 一种全格式转换器系统的控制方法，其中，电网侧逆变器单元和发电机侧逆变单元都具有并联逆变器的串联连接，并且形成发电机侧和电网侧电压中心点 串联连接的逆变器之间的电压电平。 电压中心点由中心线导体电连接。 响应于（i）电网侧逆变器和（ii）禁用第一转换器串的发电机侧逆变器中的至少一个，通过禁用有效功率输出来执行具有降额最大有功功率输出的转换操作 （i）电网侧逆变器和（ii）第二转换器串的发电机侧逆变器中的至少一个的功率产生，或相应地减小第二转换器串的有功功率产生，从而防止沿着 中线导体。

公开(公告)号：WO2015055211A1

公开(公告)日：2015-04-23

申请号：PCT/DK2014/050331

申请日：2014-10-14

Applicant: VESTAS WIND SYSTEMS A/S

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

IPC: H02J3/28 ,  F03D9/00 ,  G01R19/165 ,  H02K19/34 ,  H02K21/48 ,  H02M1/12 ,  H02H7/12 ,  H02H7/26 ,  H02J3/38 ,  H02M7/49

CPC classification number: H02M5/42 ,  F03D9/255 ,  G01R31/40 ,  H02H3/105 ,  H02H7/122 ,  H02J3/28 ,  H02J3/386 ,  H02M1/12 ,  H02M1/32 ,  H02M5/4585 ,  H02M7/219 ,  H02M7/23 ,  H02M7/493 ,  H02M2001/0077 ,  H02M2001/123 ,  H02M2007/4822 ,  H03H7/0107 ,  Y02E10/725 ,  Y02E10/726 ,  Y02E10/763 ,  Y02E10/766 ,  Y02E70/30

Abstract: A wind turbine generator 1 supplies three-phase a.c. current of variable voltage and variable frequency to two pairs of rectifiers 4a, 4b and 4c, 4d which generate respective d.c. outputs connected to positive, negative and neutral d.c. conductors 6, 7, 8. The outputs from each pair of rectifiers are connected together, and the outputs from the two pairs are connected in series to create a high-voltage d.c. output. Inverters 10a, 10b, 10c, 10d then convert the d.c. power to a.c. at a fixed frequency and voltage suitable for connection to the mains grid. To reduce the effect of common-mode noise, a capacitor is connected between the 1 neutral conductor7 and earth, and a respective filter circuit 30 is connected between each of the a.c. outputs of the inverters 10a, 10b, 10c, 10d and earth. To reduce the effect of voltage surges during lightning, a surge protection device is also connected between the neutral d.c. conductor 7 and earth. Any imbalance in the current in the positive and negative conductors 6, 8 is compensated by detecting the presence of current flowing in the neutral conductor 7. Power supplied to auxiliary circuits from the output of one of the inverters, e.g. 10a, of the wind turbine is measured, and any resulting imbalance between the current in the positive and negative conductors is compensated. In the event of an earth-leakage fault in the conductors connecting the a.c. outputs of the inverters to the grid, when isolated, isolation detection relays 25 are provided.

Abstract translation: 风力发电机1提供三相交流电。 可变电压和可变频率的电流为两对整流器4a，4b和4c，4d，它们产生相应的直流。 输出连接到正，负和中性直流。 导体6,7,8。每对整流器的输出连接在一起，两对的输出串联连接，以产生高压直流。 输出。 逆变器10a，10b，10c，10d然后转换直流。 权力到a.c. 以适合连接到电网的固定频率和电压。 为了降低共模噪声的影响，电容器连接在1个中性导体7和地之间，并且相应的滤波器电路30连接在每个交流电场之间。 逆变器10a，10b，10c，10d和地的输出。 为了减少雷击期间电压浪涌的影响，浪涌保护装置也连接在中性点间。 导体7和地球。 通过检测在中性导体7中流动的电流的存在来补偿正和负导体6,8中的电流的任何不平衡。从一个逆变器的输出，例如， 测量风力涡轮机的10a，并补偿正，负导体中的电流之间的任何不平衡。 在连接交流电的导体中发生漏电故障的情况。 当隔离的隔离检测继电器25被提供时，逆变器的输出到电网。

公开(公告)号：WO2014032668A1

公开(公告)日：2014-03-06

申请号：PCT/DK2012/050329

申请日：2012-09-03

Applicant: VESTAS WIND SYSTEMS A/S ,  KJÆR, Philip Carne ,  VALCAN, Dumitru-Mihai ,  HELLE, Lars

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，以从发电机接收交流电力，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：WO2008040350A2

公开(公告)日：2008-04-10

申请号：PCT/DK2007/000423

申请日：2007-10-02

Applicant: VESTAS WIND SYSTEMS A/S ,  HELLE, Lars ,  NIELSEN, John, Godsk ,  JENSEN, Mark, James

Inventor： HELLE, Lars ,  NIELSEN, John, Godsk ,  JENSEN, Mark, James

CPC classification number: H02J3/386 ,  Y02E10/763 ,  Y10T307/305 ,  Y10T307/313 ,  Y10T307/328 ,  Y10T307/344 ,  Y10T307/505

Abstract: The invention relates to a method for operating a wind turbine connected to a utility grid during a utility grid disturbance. The method comprises the steps of controlling active current in dependency of the frequency deviation from a reference frequency, and controlling reactive current in dependency of the voltage deviation from a reference voltage. The invention also relates to a wind turbine and wind park.

Abstract translation: 本发明涉及在公用电网干扰期间操作连接到公用电网的风力涡轮机的方法。 该方法包括以下步骤：依据频率偏离参考频率来控制有功电流，并根据电压偏离参考电压来控制无功电流。 本发明还涉及风力涡轮机和风力发电场。

公开(公告)号：WO2021052546A1

公开(公告)日：2021-03-25

申请号：PCT/DK2020/050256

申请日：2020-09-17

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： PARKHOU, Masoud ,  HELLE, Lars ,  GERÇEK, Cem Özgür

IPC: H02M1/36 ,  H02M7/483

Abstract: According to embodiments described herein a Modular Multilevel Converter (MMC) is pre-charged by: driving a bypass current from an auxiliary power source through a plurality of bypass switches included in a corresponding plurality of cells; in response to a summed voltage across a plurality of cell capacitors included in the plurality of cells satisfying a drive threshold, driving an insert current through a plurality of insert switches included in the plurality of cells; and in response to a voltage across a Direct Current (DC) link capacitor satisfying a pre-charge threshold when driving the insert current, opening a circuit breaker connecting the auxiliary power source with the plurality of cells and connecting a generator with external power line rails between which the DC link capacitor is connected.

公开(公告)号：WO2019120402A1

公开(公告)日：2019-06-27

申请号：PCT/DK2018/050316

申请日：2018-11-30

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： HELLE, Lars ,  LUND, Torsten

IPC: H02M5/44 ,  H02J3/38 ,  H02M1/32

Abstract: The present invention relates to a method for simultaneous operation of a plurality of chopper circuits of a wind turbine power converter, the method comprising the steps of operating a controllable switching member of a first chopper circuit in accordance with a first switching pattern, and operating a controllable switching member of a second chopper circuit in accordance with a second switching pattern, wherein the first switching pattern is different from the second switching pattern during a first time period. In order to reduce switching losses the first switching pattern may involve that the controllable switching member of the first chopper circuit is clamped during the first time period. Additional chopper circuits may be provided in parallel to the first and second chopper circuits. The present invention further relates to a power dissipation chopper being operated in accordance with the before mentioned method.

公开(公告)号：WO2017198268A1

公开(公告)日：2017-11-23

申请号：PCT/DK2017/050154

申请日：2017-05-16

Applicant: VESTAS WIND SYSTEMS A/S

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

IPC: F03D1/00 ,  F03D1/02 ,  F03D9/25 ,  F03D80/80 ,  H02J3/38 ,  H02M5/40

Abstract: Aspects of the present disclosure are generally directed to configurations of power conversion systems for wind turbine generators. For example, certain aspects are directed to a multi-rotor wind turbine. The multi-rotor wind turbine generally includes a plurality of rotors, each coupled to a plurality of electrical generators, one or more machine-side converters, MSCs, coupled to the electrical generators of each of the plurality of rotors and configured to generate at least one direct-current, DC, signal, and one or more line-side converters, LSCs, coupled to the MSCs and configured to generate at least one AC signal based on the at least one DC signal.

Abstract translation: 本公开的各方面总体上针对风力涡轮发电机的功率转换系统的配置。 例如，某些方面针对多转子风力涡轮机。 多转子风力涡轮机通常包括多个转子，每个转子联接到多个发电机，一个或多个机器侧转换器MSC，联接到多个转子中的每个转子的发电机，并且构造成至少产生 一个直流DC信号以及一个或多个线路侧转换器LSC，所述线路侧转换器LSC耦合到所述MSC并被配置为基于所述至少一个DC信号生成至少一个AC信号。