公开(公告)号：US20130265013A1

公开(公告)日：2013-10-10

申请号：US13729705

申请日：2012-12-28

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Shu Yu CAO ,  Anshuman TRIPATHI ,  Swee Yee FONN ,  Ramasamy ANBARASU ,  Amit Kumar GUPTA

IPC: H02P9/02

CPC classification number: H02P9/02 ,  H02P21/12 ,  H02P21/141 ,  H02P25/024 ,  H02P25/28 ,  H02P25/30 ,  H02P27/02

Abstract: Parameters of PM machines, especially for IPM machine, are known to vary by significant amounts. This affects the controllability of such machines, which may lead to reduced power loading capability and increased losses. The present invention relates to a method for PM machine inductance profile identification based on voltage mode stator flux observation which could be easily integrated to the generator start-up process in wind turbine application for both stator flux vector feedback control system and current vector feedback control system.

Abstract translation: 已知PM机器，特别是IPM机器的参数变化很大。 这会影响这种机器的可控性，这可能导致功率负载能力下降和损失增加。 本发明涉及一种基于电压模式定子磁链观测的PM机电感轮廓识别方法，可以容易地集成到定子通量矢量反馈控制系统和电流矢量反馈控制系统的风力发电机应用中的发电机启动过程 。

公开(公告)号：US20140252768A1

公开(公告)日：2014-09-11

申请号：US14206113

申请日：2014-03-12

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Shu Yu CAO ,  Anshuman TRIPATHI ,  Kim B. LARSEN ,  Gert Karmisholt ANDERSEN ,  Lars HELLE

IPC: F03D7/02

CPC classification number: F03D7/0272 ,  H02J3/386 ,  H02P9/48 ,  H02P21/141 ,  H02P2101/15 ,  Y02E10/763

Abstract: A method of controlling a wind turbine generator is provided, the wind turbine generator converting mechanical energy to electrical. The method comprises: determining an electromagnetic power reference representing the electromagnetic power generated by the wind turbine generator, wherein the electromagnetic power reference is determined based on a desired output of the wind turbine generator; controlling the electrical power generated by the wind turbine generator using a control signal, wherein the control signal is derived from the electromagnetic power reference and is modified in dependence on an inverse power function of the wind turbine generator by incorporating minimal copper loss constraint and stator voltage limiting constraint such that non-linearity of the wind turbine generator is compensated in the control loop and it operates at its maximum efficiency. One effect of the method is that classical linear control loop design can be employed in spite of the plant being a non-linear identity.

Abstract translation: 提供了一种控制风力发电机的方法，风力发电机将机械能转换为电力。 该方法包括：确定表示由风力涡轮发电机产生的电磁功率的电磁功率参考，其中基于风力涡轮发电机的期望输出来确定电磁功率基准; 使用控制信号来控制由风力涡轮发电机产生的电力，其中控制信号是根据电磁功率参考导出的，并且根据风力涡轮发电机的反功率函数，通过并入最小铜损约束和定子电压 使得风力涡轮发电机的非线性在控制回路中得到补偿，并以其最大效率运行。 该方法的一个效果是尽管植物是非线性身份，但是可以采用经典的线性控制回路设计。

公开(公告)号：US20130200620A1

公开(公告)日：2013-08-08

申请号：US13728656

申请日：2012-12-27

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Amit Kumar GUPTA ,  Anshuman TRIPATHI ,  Ramasamy ANBARASU ,  Ove STYHM ,  Gil Lampong OPINA, Jr. ,  Yugarajan KARUPPANAN ,  Bing LI ,  Shu Yu CAO

IPC: H02P9/10

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。