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：WO2016008492A1

公开(公告)日：2016-01-21

申请号：PCT/DK2015/050202

申请日：2015-07-02

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： DOAN, Duy Duc ,  NIELSEN, John Godsk ,  BISGAARD, Per

IPC: F03D7/02 ,  H02P3/18 ,  H02P9/08

CPC classification number: F03D7/0264 ,  F03D7/0272 ,  F03D9/255 ,  H02P3/18 ,  H02P3/22 ,  H02P9/08 ,  Y02E10/723

Abstract: The present invention relates to a method for shutting down a wind power facility, said wind power facility comprising a power generator, a power converter comprising generator side and grid side converters being separated by an intermediate DC circuit, and power dissipation or power storage means being operatively connected to the intermediate DC circuit, the method comprising the steps of determining that the wind power facility needs to be shut down, and operating the generator side converter in accordance with a load time curve during shutdown of the wind power facilityin order to avoid overloading of selected generator side converter components and the power dissipation or power storage means. Moreover, the present invention relates to a wind power facilityfor performing this method..

Abstract translation: 本发明涉及一种关闭风力发电设备的方法，所述风力发电设备包括发电机，包括发电机侧的电力转换器和由中间直流电路隔开的电网侧转换器，以及功率耗散或蓄电装置 可操作地连接到中间DC电路，该方法包括以下步骤：确定风力设备需要关闭，并且在风力设备关闭期间根据负载时间曲线操作发电机侧转换器，以避免过载 选择的发电机侧转换器部件和功率消耗或电力存储装置。 此外，本发明涉及一种用于执行该方法的风力发电设备。

公开(公告)号：WO2020057707A3

公开(公告)日：2020-03-26

申请号：PCT/DK2019/050274

申请日：2019-09-19

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： BIRIS, Ciprian ,  TANGE, Kent ,  DOAN, Duy Duc ,  ANDERSEN, Gert Karmisholt ,  LUND, Torsten ,  MEYER, Lars

IPC: H02M5/458 ,  H02M7/5387

Abstract: This invention concerns a method of controlling a power converter system 26 operating in an overmodulation region. The power converter system 26 comprises more than two current controllers 71, 73, 77, 79 a modulator 76 and a power converter 78, and the modulator 76 is configured to provide at least one modulated drive signal 87 to the power converter 78 based on voltage reference vector signals 82a, 82b, 82c, 82d from the more than two current controllers 71, 73, 77, 79. The method comprises determining the voltage reference vector signals 82a, 82b, 82c, 82d; determining compensated voltage reference vector signals 84a, 84b, 84c, 84d indicative of a fundamental frequency of a respective voltage reference vector signal 82a, 82b, 82c, 82d; and, determining the at least one modulated drive signal 87 based on a combination of the compensated voltage reference vector signals 84a, 84b, 84c, 84d.

公开(公告)号：WO2020057703A1

公开(公告)日：2020-03-26

申请号：PCT/DK2019/050266

申请日：2019-09-11

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： BIRIS, Ciprian ,  TANGE, Kent ,  ANDERSEN, Gert Karmisholt ,  DOAN, Duy Duc ,  LUND, Torsten ,  MEYER, Lars

IPC: H02M7/5395 ,  H02M7/5387

Abstract: This invention concerns a method of controlling a line side converter 46 of a power converter system 26 operating in an over-modulation range. The line side converter 46 comprises a controller 64 comprising a feedback control module 72 configured to output a feedback control signal 74 for modifying a drive signal 67 received by a modulator 68. The method comprises determining a modulation index within the over-modulation range; and, controlling the feedback control module 72 to adjust the feedback control signal 74 based on the modulation index.

公开(公告)号：WO2019120404A1

公开(公告)日：2019-06-27

申请号：PCT/DK2018/050327

申请日：2018-12-05

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： ANDERSEN, Gert Karmisholt ,  HELLE, Lars ,  DYRLUND, Poul Møhl ,  RABI, Morteza ,  DOAN, Duy Duc

IPC: H02J3/38 ,  F03D7/02 ,  F03D7/04

Abstract: A method for use in controlling a wind turbine generator (1) of a wind power plant based on a condition of a power converter or a component forming part of a power converter in the wind power plant. The method comprises determining the initial condition of the power converter or a component forming part of a power converter and determining the evolution of the condition from the initial condition based on notional power reference values of the wind turbine generator (1). The method further comprises comparing the evolution of the condition to a predetermined threshold and determining, from the comparison, a time period by which the condition of the power converter or a component forming part of a power converter will substantially equal the predetermined threshold.

公开(公告)号：WO2018036596A1

公开(公告)日：2018-03-01

申请号：PCT/DK2017/050261

申请日：2017-08-11

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： ANDERSEN, Gert Karmisholt ,  TANGE, Kent ,  ANDERSEN, Søren ,  DOAN, Duy Duc ,  BILTOFT, Jens Peter ,  HELLE, Lars ,  NIELSEN, John Godsk

IPC: H02P9/02 ,  H02M5/44

Abstract: A method of controlling a wind turbine generator (1) comprising an electrical generator (10) and a power converter (12), the power converter (12) comprising an electrical switch (14a, 14b) that is configured to process electrical power produced by the electrical generator (10), the method comprising: controlling an output from the electrical switch (14a, 14b) using a variable pulse-width modulated control signal, thereby to control characteristics of output power from the power converter (12); acquiring sample data (26) relating to an electronic signal within the wind turbine generator (1), wherein the sample data (26) is used for controlling the wind turbine generator (1); and dynamically adjusting a frequency (30) at which the sample data is acquired to synchronise data acquisition with a carrier frequency (24) of the control signal.

Abstract translation: （10）和功率转换器（12）的风力涡轮发电机（1）的控制方法，所述功率转换器（12）包括电气开关（14a，14b），所述电气开关 被配置为处理由所述发电机（10）产生的电力，所述方法包括：使用可变脉宽调制控制信号来控制来自所述电开关（14a，14b）的输出，由此控制来自所述发电机 功率转换器（12）; 获取与所述风力涡轮发电机（1）内的电子信号有关的采样数据（26），其中所述采样数据（26）用于控制所述风力涡轮发电机（1）; 以及动态地调整采样数据被采集的频率（30）以使数据采集与控制信号的载波频率（24）同步。

公开(公告)号：WO2016165718A1

公开(公告)日：2016-10-20

申请号：PCT/DK2016/050101

申请日：2016-04-11

Applicant: VESTAS WIND SYSTEMS A/S

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

IPC: H02M1/32 ,  H02J3/36 ,  H02H7/12 ,  H02H7/122 ,  H02H7/125 ,  H02M7/02 ,  H02M7/483 ,  H02M7/42 ,  H02M7/797 ,  H02M5/00

CPC classification number: H02M1/32 ,  H02H7/261 ,  H02M5/00 ,  H02M7/02 ,  H02M7/42 ,  H02M7/797 ,  H02M2007/4835 ,  Y02E10/76

Abstract: A wind-turbine-converter system with inverter controllers for inverters and a distributed error- handling system as well as a method of controlling the same is provided. The inverter controllers are linked by a communication bus with one or more communication rings. The communication bus enables a control word to circulate between the inverter controllers. When an inverter controller detects a fault of an associated inverter, the inverter controller produces a control word indicative of the detected fault. The control word indicative of the detected fault circulates to all other inverter controllers over the communication bus and the inverter controllers perform a given fault-response action.

Abstract translation: 提供了一种具有用于逆变器的逆变器控制器和分布式错误处理系统的风力涡轮机转换器系统以及其控制方法。 逆变器控制器由具有一个或多个通信环的通信总线链接。 通信总线使控制字能够在变频器控制器之间循环。 当逆变器控制器检测到相关逆变器的故障时，逆变器控制器产生指示检测到的故障的控制字。 指示检测到的故障的控制字通过通信总线循环到所有其他逆变器控制器，并且逆变器控制器执行给定的故障响应动作。

公开(公告)号：WO2016107625A1

公开(公告)日：2016-07-07

申请号：PCT/DK2015/050384

申请日：2015-12-08

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： ANDERSEN, Søren ,  ANDERSEN, Gert Karmisholt ,  DOAN, Duy Duc ,  NIELSEN, John Godsk

IPC: H02M5/458 ,  F03D9/00 ,  H02M1/00

CPC classification number: H02M5/4585 ,  F03D9/255 ,  H02M2001/0025 ,  H02M2001/0077 ,  H02P2101/15 ,  Y02E10/76

Abstract: A method of setting a reference DC-link voltage of a wind-turbine converter system is provided. At least at least one DC voltage demand from at least one generator-side inverter and at least one DC voltage demand are received from at least one grid-side inverter. A generator-side DC voltage demand value on the basis of the at least one DC voltage demand received from the at least one generator-side inverter. Also a grid-side DC voltage demand value is determined on the basis of the at least one DC voltage demand received from the at least one grid-side inverter. The highest DC voltage demand value out of the generator-side and grid-side DC voltage demand values is chosen. This chosen value corresponds to the set reference DC-link voltage.

Abstract translation: 提供了一种设置风力涡轮转换器系统的参考直流链路电压的方法。 至少一个电网侧逆变器至少接收来自至少一个发电机侧逆变器的至少一个DC电压需求和至少一个DC电压需求。 基于从至少一个发电机侧逆变器接收的至少一个DC电压需求来生成发电机侧DC电压需求值。 还基于从至少一个并网逆变器接收的至少一个DC电压需求来确定电网侧DC电压需求值。 选择发电机侧和电网侧直流电压需求值以外的最高直流电压需求值。 该选择的值对应于设定的参考直流母线电压。

公开(公告)号：WO2020057704A1

公开(公告)日：2020-03-26

申请号：PCT/DK2019/050267

申请日：2019-09-11

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： LUND, Torsten ,  BIRIS, Ciprian ,  TANGE, Kent ,  DOAN, Duy Duc ,  ANDERSEN, Gert Karmisholt

IPC: H02J3/38 ,  H02J3/01

Abstract: This invention relates to a method of controlling at least one wind turbine (10) of a plurality of wind turbines connected to an electrical grid (28) at a predefined point in the electrical grid (28). The wind turbine comprises a DC link (48) connecting a generator side converter (44) to a line side converter (46), where the line side converter (46) is controlled according to a modulation index requested by a power converter controller (56). The method comprises determining a harmonic frequency signal 66 indicative of a harmonic frequency value at the predefined point in the electrical grid (28); determining a deviation (70) between the harmonic frequency signal (66) and a permissible harmonic frequency value; determining a permissible modulation index (78) based on the deviation (70); comparing the permissible modulation index (78) to the modulation index requested by the power converter controller (56); and, altering a DC link (48) voltage set-point based on the comparison between the permissible modulation index (78) and the requested modulation index.

公开(公告)号：WO2018121821A1

公开(公告)日：2018-07-05

申请号：PCT/DK2017/050399

申请日：2017-11-29

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： BIRIS, Ciprian ,  DOAN, Duy Duc ,  NIELSEN, John Godsk

IPC: H02M7/483 ,  H02J3/38 ,  H02M1/00

Abstract: A power conversion system for a wind turbine generator, comprising a machine-side converter having an AC voltage input from a generator and a DC voltage output to a DC link, wherein the machine-side converter is a modular multi-level converter comprising one or more converter legs corresponding to a respective one or more electrical phases of the generator, each of the converter legs comprising a plurality of converter cells, the system further comprising: a converter control module which provides the machine-side converter with a gate signal, and an electrical frequency estimation module configured to estimate the mean electrical frequency of the generator; wherein the gate signal has at least one mean switching frequency corresponding to at least one electrical phase of the generator; wherein the converter control module is configured to modulate the mean switching frequency of the gate signal in dependence on the mean electrical frequency of the generator.