WIND TURBINE
    2.
    发明申请
    WIND TURBINE 审中-公开
    风力涡轮机

    公开(公告)号:WO2012000508A2

    公开(公告)日:2012-01-05

    申请号:PCT/DK2011/050243

    申请日:2011-06-29

    CPC classification number: H02P9/10 F03D7/0284 H02P2101/15 Y02E10/723

    Abstract: A wind turbine is provided. The wind turbine includes a generator, an output thereof being connectable to a power grid via a power transmission path, the power transmission path comprising a generator side converter coupled to the output of the generator, a grid side converter coupled to the power grid, and a DC link coupled between the generator side converter and the grid side converter. For diverting the generator power, a load dump arrangement is provided which includes at least one resistor, a plurality of switches, and a plurality of electrical connections which electrically connect the at least one resistor to the output of the generator and across the DC link via the plurality of switches. One common and configurable load dump is used for both converter system failures and grid failures. As compared to two separate load dumps for converter failures and grid failures, the single load dump will require a smaller space for a wind turbine. Thus, the weight and size of the power converter system may be reduced.

    Abstract translation: 提供风力涡轮机。 风力涡轮机包括发电机,其输出端经由电力传输路径可连接到电网,该电力传输路径包括耦合到发电机的输出端的发电机侧转换器,耦合到电网的电网侧转换器,以及 耦合在发电机侧转换器和电网侧转换器之间的DC链路。 为了转移发电机功率,提供负载突降装置,其包括至少一个电阻器,多个开关和多个电连接,其将至少一个电阻器电连接到发电机的输出端并跨越DC链路经由 多个开关。 一个通用和可配置的负载转储用于转换器系统故障和电网故障。 与用于转换器故障和电网故障的两个单独的负载转储相比,单个负载转储将需要较小的风力发电机空间。 因此,可以减小功率转换器系统的重量和尺寸。

    A METHOD OF OPERATING A WIND TURBINE PLANT
    3.
    发明申请
    A METHOD OF OPERATING A WIND TURBINE PLANT 审中-公开
    一种风力涡轮机的运行方法

    公开(公告)号:WO2014124644A1

    公开(公告)日:2014-08-21

    申请号:PCT/DK2013/050039

    申请日:2013-02-15

    Abstract: A method of operating a wind turbine plant is provided. Such a wind turbine plant comprises at least one transmission branch comprising a plurality of wind turbine generators and coupled to an electrical grid at a point of common coupling through at least one circuit breaker comprising a breaking capacity. The method comprises monitoring the electrical grid for a low voltage fault event; and if a low voltage fault event is detected: calculating a grid short circuit strength, determining a short circuit current limit if the grid short circuit strength requires an initial fault current contribution which exceeds the breaking capacity of the circuit breaker to be passed through the circuit breaker, determining a maximum fault current contribution based on the short circuit current limit and operating the wind turbine generators to provide to the electrical grid the maximum fault current contribution.

    Abstract translation: 提供了一种操作风力涡轮机设备的方法。 这种风力涡轮机设备包括至少一个包括多个风力涡轮发电机的传输分支,并且通过包括断路能力的至少一个断路器在公共耦合点处耦合到电网。 该方法包括监测低压故障事件的电网; 并且如果检测到低电压故障事件:计算电网短路强度,如果电网短路强度需要超过断路器通过电路的分断能力的初始故障电流贡献,则确定短路电流限制 断路器,基于短路电流限制确定最大故障电流贡献,并操作风力涡轮发电机以向电网提供最大故障电流贡献。

    A WIND TURBINE GENERATOR
    6.
    发明公开
    A WIND TURBINE GENERATOR 有权
    风力涡轮发电机

    公开(公告)号:EP2633596A1

    公开(公告)日:2013-09-04

    申请号:EP11776077.7

    申请日:2011-10-25

    CPC classification number: H02P9/006 H02H7/065 H02M1/32 Y02E10/76

    Abstract: A system for a wind turbine generator comprising: a set of voltage limiting elements, and a controller configured to bypass the voltage limiting elements when a line voltage is below a predetermined threshold, and configured to connect each voltage limiting element in series between a grid side converter and a turbine transformer of the wind turbine generator, and to determine a current control reference signal for controlling the grid side converter (to generate a determined current) when the line voltage is above the predetermined threshold.

    Abstract translation: 1。一种用于风力涡轮发电机的系统,包括:一组电压限制元件以及控制器,所述控制器被配置为当线电压低于预定阈值时旁路所述电压限制元件,并且被配置为将每个电压限制元件串联连接在电网侧 转换器和风力涡轮发电机的涡轮变压器,并且当线电压高于预定阈值时确定用于控制电网侧转换器(以产生确定的电流)的电流控制参考信号。

    A METHOD OF OPERATING A WIND TURBINE PLANT
    7.
    发明公开
    A METHOD OF OPERATING A WIND TURBINE PLANT 有权
    VERFAHRENFÜRDEN BETRIEB EINER WINDKRAFTANLAGE

    公开(公告)号:EP2957012A1

    公开(公告)日:2015-12-23

    申请号:EP13706162.8

    申请日:2013-02-15

    Abstract: A method of operating a wind turbine plant is provided. Such a wind turbine plant comprises at least one transmission branch comprising a plurality of wind turbine generators and coupled to an electrical grid at a point of common coupling through at least one circuit breaker comprising a breaking capacity. The method comprises monitoring the electrical grid for a low voltage fault event; and if a low voltage fault event is detected: calculating a grid short circuit strength, determining a short circuit current limit if the grid short circuit strength requires an initial fault current contribution which exceeds the breaking capacity of the circuit breaker to be passed through the circuit breaker, determining a maximum fault current contribution based on the short circuit current limit and operating the wind turbine generators to provide to the electrical grid the maximum fault current contribution.

    Abstract translation: 提供了一种操作风力涡轮机设备的方法。 这样的风力涡轮机设备包括至少一个包括多个风力涡轮发电机的传输分支,并通过包括断路能力的至少一个断路器在公共耦合点处耦合到电网。 该方法包括监测低压故障事件的电网; 并且如果检测到低电压故障事件:计算电网短路强度,如果电网短路强度需要超过断路器通过电路的分断能力的初始故障电流贡献,则确定短路电流限制 断路器,基于短路电流限制确定最大故障电流贡献,并操作风力涡轮发电机以向电网提供最大故障电流贡献。

    WIND TURBINE
    8.
    发明公开
    WIND TURBINE 有权
    风力涡轮机

    公开(公告)号:EP2589129A2

    公开(公告)日:2013-05-08

    申请号:EP11729050.2

    申请日:2011-06-29

    Abstract: A wind turbine is provided. The wind turbine includes a generator, an output thereof being connectable to a power grid via a power transmission path, the power transmission path comprising a generator side converter coupled to the output of the generator, a grid side converter coupled to the power grid, and a DC link coupled between the generator side converter and the grid side converter. For diverting the generator power, a load dump arrangement is provided which includes at least one resistor, a plurality of switches, and a plurality of electrical connections which electrically connect the at least one resistor to the output of the generator and across the DC link via the plurality of switches. One common and configurable load dump is used for both converter system failures and grid failures. As compared to two separate load dumps for converter failures and grid failures, the single load dump will require a smaller space for a wind turbine. Thus, the weight and size of the power converter system may be reduced.

    Abstract translation: 提供风力涡轮机。 风力涡轮机包括发电机,其输出端可经由动力传输路径连接到电力网,电力传输路径包括耦合到发电机的输出端的发电机侧转换器,耦合到电力网的电网侧转换器,以及 耦合在发电机侧转换器和电网侧转换器之间的DC链路。 为了转移发电机功率,提供了负载突降装置,其包括至少一个电阻器,多个开关以及多个电连接件,其通过至少一个电阻器将发电机的输出端与直流链路电连接 多个开关。 转换器系统故障和电网故障都使用一种常见且可配置的负载转储。 与两个单独的负载转储相比,转换器故障和电网故障相比,单个负载转储将需要较小的风力涡轮机空间。 因此,功率转换器系统的重量和尺寸可以减小。

Patent Agency Ranking