公开(公告)号：EP3213383A1

公开(公告)日：2017-09-06

申请号：EP15787448.8

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

Abstract translation: 具有整流器（4）和逆变器（5）以及转换器控制器（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）。 变流器系统由主变流器控制器（13）和从变流器控制器（12）控制。 主变换器控制器（13）控制第一变换器串（25），并且从变换器控制器（12）控制第二变换器串（24）。 主变流器控制器（13）接收来自上级风力涡轮机控制器（21）的命令，基于上级控制命令向从变流器控制器（12）提供串控制命令，并且控制 第一转换器串（25）基于上级控制命令。 从变换器控制器（12）接收来自主变换器控制器（13）的串控制命令，并基于接收到的串控制命令来控制第二变换器串的变换操作。 第一和第二转换器串（24,25）可以布置成能够进入中性点（62）的双极配置。 故障检测可以基于通过中性线（62）的电流进行。 该系统能够进行故障穿越。 而且，在主变换器控制器（13）发生故障的情况下，冗余单元取代它。

公开(公告)号：EP3169899A1

公开(公告)日：2017-05-24

申请号：EP15737974.4

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 facility in 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 facility for performing this method.

Abstract translation: 本发明涉及一种关闭风力发电设施的方法，所述风力发电设施包括发电机，包括发电机侧和电网侧转换器的功率转换器，所述发电机侧和电网侧转换器由中间直流电路分开，并且功率耗散或功率存储装置 所述方法包括以下步骤：确定风力发电设施需要关闭;以及根据风力发电设施停机期间的负载时间曲线操作发电机侧转换器以避免过载 选定的发电机侧转换器部件和功率消耗或功率存储装置。 此外，本发明涉及用于执行该方法的风力发电设备。

公开(公告)号：EP2788619A2

公开(公告)日：2014-10-15

申请号：EP12812514.3

申请日：2012-12-07

Applicant: Vestas Wind Systems A/S

Inventor： DOAN, Duy Duc

IPC: F03D7/02 ,  H02P9/08 ,  H02P3/18

Abstract: The present invention relates to a method for controlled shutdown of wind turbines. The method involves using a generator side converter, and optionally a DC chopper, as a generator load during controlled shutdown. In this way gearbox back-lashing and drive train oscillations can be avoided. The present invention also relates to a wind turbine capable of performing controlled shutdown in accordance with the before-mentioned method.

Abstract translation: 本发明涉及风力发电机的受控停机方法。 该方法包括在受控停机期间使用发电机侧转换器和可选的DC斩波器作为发电机负载。 这样就可以避免齿轮箱的回扣和传动系的摆动。 本发明还涉及能够根据前述方法执行受控关闭的风力涡轮机。