公开(公告)号：US20150357819A1

公开(公告)日：2015-12-10

申请号：US14762047

申请日：2014-01-21

Applicant: ALSTOM RENEWABLE TECHNOLOGIES

Inventor： Isaac PINEDA AMO

IPC: H02J3/18 ,  H02J3/16 ,  H02P9/14 ,  F03D9/00

CPC classification number: H02J3/16 ,  F03D7/0284 ,  F03D9/257 ,  G05F1/70 ,  H02J3/18 ,  H02J3/386 ,  H02P9/14 ,  H02P2101/15 ,  Y02E10/563 ,  Y02E10/723 ,  Y02E10/725 ,  Y02E10/763 ,  Y02E40/34 ,  Y02P80/14 ,  Y02P80/152

Abstract: Methods and arrangements for controlling the reactive power of a power generator from an initial reactive power state to a desired reactive power state are disclosed. The power generator belongs to a power farm coupled to an electrical grid. During a transition state, changes in voltage and reactive power demand are detected and control of reactive power is passed from the power farm to the power generator controller, then to a transition controller and finally back to the power farm. The power generator may be a wind turbine and the power farm a wind farm.

Abstract translation: 公开了用于将发电机的无功功率从初始无功功率状态控制到期望的无功功率状态的方法和装置。 发电机属于与电网耦合的电力场。 在过渡状态期间，检测到电压和无功功率需求的变化，并且无功功率的控制从功率场传递到发电机控制器，然后传递到过渡控制器，最后返回到电力场。 发电机可以是风力发电机和电力场一个风电场。

公开(公告)号：US20150354534A1

公开(公告)日：2015-12-10

申请号：US14760415

申请日：2014-01-17

Applicant: ALSTOM RENEWABLE TECHNOLOGIES

Inventor： Isaac PINEDA AMO

IPC: F03D7/02

CPC classification number: F03D7/026 ,  F03D7/0224 ,  Y02E10/723

Abstract: Methods of starting a wind turbine from a standstill substantially until generator connection, the wind turbine having a rotor with one or more blades, a pitch system for rotating the blades along their longitudinal axes and a generator operationally connected with the rotor. In standstill, the blades are substantially in a feathered position and the generator is not generating electrical power. The methods may comprise measuring the wind speed representative for the wind turbine and measuring the rotor speed of the wind turbine, and when the rotor speed is not equal to zero, determining the tip speed ratio for the wind turbine, and determining the pitch angle of the blades as a function of the tip speed ratio to optimize the torque produced by the blades of the wind turbine rotor.

Abstract translation: 风力涡轮机从静止状态起动到发电机连接的方法，风力涡轮机具有带有一个或多个叶片的转子，用于沿其纵向轴线旋转叶片​​的俯仰系统和与转子可操作地连接的发电机。 在静止状态下，叶片基本处于顺桨位置，并且发电机不产生电力。 该方法可以包括测量代表风力涡轮机的风速并测量风力涡轮机的转子速度，并且当转子速度不等于零时，确定风力涡轮机的叶尖速度比，并确定风力涡轮机的桨距角 作为叶片速度比的函数的叶片，以优化由风力涡轮机转子的叶片产生的扭矩。

公开(公告)号：US20150354535A1

公开(公告)日：2015-12-10

申请号：US14760687

申请日：2014-01-17

Applicant: ALSTOM RENEWABLE TECHNOLOGIES

Inventor： Isaac PINEDA AMO

IPC: F03D7/02 ,  F03D7/04

CPC classification number: F03D7/0224 ,  F03D7/042 ,  F05B2270/1011 ,  F05B2270/32 ,  F05B2270/322 ,  Y02E10/723

Abstract: Methods of operating a variable speed wind turbine as a function of a wind speed, the wind turbine having a rotor with a plurality of blades, and one or more pitch mechanisms for rotating the blades. The method comprising a sub-nominal zone of operation for wind speeds below the nominal wind speed and a supra-nominal zone of operation for wind speeds above the nominal wind speed. In the supra-nominal zone, the blades are pitched so as to maintain the rotor speed substantially constant, and a tip speed ratio of the wind turbine is substantially continuously being determined and wherein an instantaneous minimum pitch angle is substantially continuously being determined based on the instantaneous tip speed ratio, and the blades are never pitched below the instantaneous minimum pitch angle. The disclosure further relates to a wind turbine suitable for carrying out such methods.

Abstract translation: 作为风速的函数操作变速风力涡轮机的方法，所述风力涡轮机具有带有多个叶片的转子和用于旋转叶片的一个或多个俯仰机构。 该方法包括用于低于标称风速的风速的次命名区域，以及高于标称风速的风速的超标称操作区域。 在超标称区域中，叶片被倾斜以便保持转子速度基本恒定，并且确定风力涡轮机的叶尖速度比基本上连续地被确定，并且其中瞬时最小桨距角基本上连续地被确定 瞬时尖端速度比，并且叶片从不倾斜到瞬时最小桨距角以下。 本公开还涉及适于执行这种方法的风力涡轮机。

公开(公告)号：US20150275860A1

公开(公告)日：2015-10-01

申请号：US14668633

申请日：2015-03-25

Applicant: ALSTOM RENEWABLE TECHNOLOGIES

Inventor： Carlo Enrico CARCANGIU ,  Isaac PINEDA AMO

IPC: F03D7/02 ,  F03D7/04 ,  F03D9/00

CPC classification number: F03D7/0292 ,  F03D7/0224 ,  F03D7/024 ,  F03D7/044 ,  F03D7/046 ,  F03D9/25 ,  F03D17/00 ,  F05B2270/332 ,  Y02E10/723 ,  Y02E10/725

Abstract: Methods of operating a wind turbine having one or more sensors for determining loads in selected wind turbine components, the methods comprising determining loads in the selected wind turbine components during a measuring period under a first wind condition, calculating a real power spectral density of one or more selected loads for each of the selected wind turbine components during the measuring period, obtaining a reference power spectral density for the selected loads for each of the selected wind turbine components under a wind condition that is comparable to the first wind condition, determining accumulated fatigue damage in time equivalent loads for each of the selected wind turbine components, verifying for each of the selected wind turbine components whether the accumulated fatigue damage in time equivalent loads is within acceptable limits, and performing one or more operational changes in case of negative result. Wind turbines suitable for these methods are also disclosed.

Abstract translation: 操作具有一个或多个传感器以确定所选择的风力涡轮机部件中的负载的风力涡轮机的方法，所述方法包括在第一风力条件下的测量周期期间确定所选择的风力涡轮机部件中的负载，计算一个或 在测量期间为每个所选择的风力涡轮机组件选择更多选择的载荷，在与第一风力条件相当的风力条件下获得每个所选择的风力涡轮机部件的选定负载的参考功率谱密度，确定累积疲劳 对于每个所选择的风力涡轮机部件的时间等效负载的损坏，验证每个所选择的风力涡轮机部件，无论时间等效负载中的累积疲劳损伤是否在可接受的限度内，以及在否定结果的情况下执行一个或多个操作改变。 也公开了适用于这些方法的风力涡轮机。