公开(公告)号：US20190063406A1

公开(公告)日：2019-02-28

申请号：US15771842

申请日：2016-11-10

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Carsten Krogh NIELSEN ,  Sven Jesper KNUDSEN

IPC: F03D17/00 ,  F03D9/25

Abstract: A method for monitoring and assessing power performance changes of one or more wind turbines of a wind farm, the method comprising the steps of: for each wind turbine to be monitored, defining a group of reference wind turbines, the group of reference wind turbines comprising two or more wind turbines, operating the wind turbines of the wind farm, while obtaining locally measured wind speeds at each of the wind turbines, during a training period, obtaining the power performance data in relation to the locally measured wind speed for each of the monitored wind turbines, during the training period, for each of the monitored wind turbines, generating a wind speed transfer function establishing a relationship between the locally measured wind speeds at each of the reference wind turbines and the locally measured wind speed at the monitored wind turbine, operating the wind turbines of the wind farm, while obtaining locally measured wind speeds, at least at the reference wind turbines during one or more test periods following the training period, estimate the wind speed for the monitored wind turbines during the test periods based on the measured wind speeds at the reference wind turbines, and the transfer function generated during the training period for the monitored wind turbine, obtain, power performance data for each of the monitored wind turbines in relation to the estimated wind speed, asses power performance by comparing the power performance data obtained during the test periods with the power performance data obtained during the training period.

公开(公告)号：US20180320667A1

公开(公告)日：2018-11-08

申请号：US15772793

申请日：2016-11-10

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Dan BELTOFT ,  Sven Jesper KNUDSEN ,  Carsten Krogh NIELSEN

IPC: F03D17/00 ,  F03D7/04

CPC classification number: F03D17/00 ,  F03D7/046 ,  F03D7/048 ,  F05B2230/80 ,  F05B2260/821 ,  F05B2260/83 ,  F05B2270/32 ,  F05B2270/335 ,  F05B2270/504 ,  Y02E10/723

Abstract: Assessing performance impact of a power upgrade of one or more wind turbines of a wind farm that includes a group of target wind turbines and a group of reference wind turbines. For each of the target wind turbines, a transfer function is generated, establishing a relationship between the locally measured wind speed at the target wind turbine and locally measured wind speeds at each of the reference wind turbines. A power upgrade is performed on each of the target wind turbines, and subsequently power performance data is obtained for the reference wind turbines and the target wind turbines, within one or more wind speed intervals. For the target wind turbines, the wind speed intervals are based on estimated wind speeds, based on locally measured wind speeds at the reference wind turbines and the transfer functions.

公开(公告)号：US20180335019A1

公开(公告)日：2018-11-22

申请号：US15776115

申请日：2016-11-09

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Sven Jesper KNUDSEN ,  Carsten Krogh NIELSEN

IPC: F03D7/04 ,  F03D17/00 ,  G06N99/00 ,  G06F17/50 ,  G01R21/133

CPC classification number: F03D7/046 ,  F03D7/048 ,  F03D17/00 ,  F05B2260/821 ,  F05B2260/83 ,  F05B2260/845 ,  F05B2270/32 ,  F05B2270/335 ,  F05B2270/70 ,  G01R21/1331 ,  G06F17/5009 ,  G06F2217/16 ,  G06N99/005 ,  Y02E10/723

Abstract: Monitoring and assessing power performance changes of one or more wind turbines of a wind farm. For each wind turbine to be monitored, a group of reference wind turbines is defined. During a training period a transfer function is generated for each monitored wind turbine. The transfer function establishes a relationship between locally measured wind speeds at each of the reference wind turbines and the power performance data for the monitored wind turbine obtained during the training period. During one or more subsequent test periods, measured power performance data for the monitored wind turbines is compared to predicted power performance data. The predicted power performance data is obtained by means of the locally measured wind speeds at the corresponding reference wind turbines during the test period(s) and the previously generated transfer function for the monitored wind turbine. This allows even small and/or gradual power performance degradation to be detected.

公开(公告)号：US20150278405A1

公开(公告)日：2015-10-01

申请号：US14230801

申请日：2014-03-31

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Kim Emil ANDERSEN ,  Sven Jesper KNUDSEN

IPC: G06F17/50

CPC classification number: G06F17/5009 ,  F05B2260/821 ,  G06Q10/04 ,  G06Q10/06375 ,  G06Q50/06 ,  H02J3/386 ,  Y02E10/763

Abstract: A method for evaluating a performance prediction for a wind farm comprising a plurality of wind turbines is disclosed. The method comprises providing a siting model, said siting model being capable of predicting performance of a wind farm, based on performance estimates of individual wind turbines forming part of the wind farm; applying the siting model to one or more existing wind farms, thereby predicting performance of the existing wind farms; and comparing the predicted performance of the existing wind farms to historical performance data of the existing wind farms. The performance prediction provided by the siting model is evaluated, based on the comparison.

Abstract translation: 公开了一种用于评估包括多个风力涡轮机的风电场的性能预测的方法。 该方法包括提供选址模型，所述选址模型能够基于形成风力发电场的一部分的各个风力涡轮机的性能估计来预测风力发电场的性能; 将选址模型应用于一个或多个现有风电场，从而预测现有风电场的性能; 并将现有风电场的预测性能与现有风电场的历史性能数据进行比较。 基于比较，对选址模型提供的绩效预测进行了评估。