公开(公告)号：US09496813B2

公开(公告)日：2016-11-15

申请号：US14407592

申请日：2013-07-12

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Amit Kumar Gupta ,  Ryan Arya Pratama

IPC: F03D9/00 ,  H02P9/10 ,  F03D7/02 ,  H02P101/15

CPC classification number: H02P9/102 ,  F03D7/0224 ,  F03D7/0284 ,  F03D9/255 ,  F05B2270/107 ,  F05B2270/337 ,  H02P2101/15 ,  Y02E10/723

Abstract: A method of operating a wind turbine is provided. The wind turbine comprises a turbine rotor with at least one blade having a variable pitch angle, a power generator, and a power converter connected to the power generator via a first circuit breaker and to a power grid via a second circuit breaker. According to the method, overvoltage events at the power grid are monitored. If an overvoltage event is detected, the method comprises opening the first circuit breaker and the second circuit breaker, disabling active operation of the power converter, connecting a power dissipating unit to the power generator to dissipate power output from the power generator, and moving the pitch angle of the at least one blade towards a feathered position.

Abstract translation: 提供了一种操作风力涡轮机的方法。 风力涡轮机包括具有至少一个具有可变俯仰角的叶片的涡轮转子，发电机和经由第一断路器连接到发电机的功率转换器，以及经由第二断路器连接到电网的电力转换器。 根据该方法，监测电网过电压事件。 如果检测到过电压事件，则该方法包括打开第一断路器和第二断路器，禁用功率转换器的主动操作，将功率消耗单元连接到功率发生器，以耗散从发电机输出的功率，并移动 所述至少一个叶片的俯仰角朝向羽状位置。

公开(公告)号：US20150155809A1

公开(公告)日：2015-06-04

申请号：US14407592

申请日：2013-07-12

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Amit Kumar Gupta ,  Ryan Arya Pratama

IPC: H02P9/10 ,  F03D7/02 ,  F03D9/00

CPC classification number: H02P9/102 ,  F03D7/0224 ,  F03D7/0284 ,  F03D9/255 ,  F05B2270/107 ,  F05B2270/337 ,  H02P2101/15 ,  Y02E10/723

Abstract: A method of operating a wind turbine is provided. The wind turbine comprises a turbine rotor with at least one blade having a variable pitch angle, a power generator, and a power converter connected to the power generator via a first circuit breaker and to a power grid via a second circuit breaker. According to the method, overvoltage events at the power grid are monitored. If an overvoltage event is detected, the method comprises opening the first circuit breaker and the second circuit breaker, disabling active operation of the power converter, connecting a power dissipating unit to the power generator to dissipate power output from the power generator, and moving the pitch angle of the at least one blade towards a feathered position.

Abstract translation: 提供了一种操作风力涡轮机的方法。 风力涡轮机包括具有至少一个具有可变俯仰角的叶片的涡轮转子，发电机和经由第一断路器连接到发电机的功率转换器，以及经由第二断路器连接到电网的电力转换器。 根据该方法，监测电网过电压事件。 如果检测到过电压事件，则该方法包括打开第一断路器和第二断路器，禁用功率转换器的主动操作，将功率消耗单元连接到功率发生器，以耗散从发电机输出的功率，并移动 所述至少一个叶片的俯仰角朝向羽状位置。