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In order to solve the problem of unified setting of yaw control parameters of wind turbines and the delay of yaw startup of wind operation, a yaw control parameter optimization method based on wind direction fluctuation characteristic evaluation and multiobjective particle swarm optimization algorithm was proposed. The yaw control parameters under different wind speed ranges were optimized by taking the power generation of the unit and the rotation Angle of the engine room under yaw control as optimization objectives. A yaw control strategy optimization method based on VMDEEMD –LSTM –LSSVM wind condition prediction model is proposed. Through predicting the average wind speed in a period of time, the optimized yaw control parameters are set in advance, and through predicting the wind direction, whether yaw starts in advance to the wind action is judged and controlled. The results of example analysis show that this strategy can effectively improve the power generation of wind turbines and reduce the cabin rotation Angle under yaw control, which is beneficial to the economic benefit of wind farms.
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为解决风电机组偏航控制参数统一设定与偏航对风动作启动滞后的问题,文章提出了一种基于风向波动特征评估与多目标粒子群算法的偏航控制参数优化方法。以一段时间内机组的发电量与偏航控制下机舱转过角度为优化目标,对不同风速区间下的偏航控制参数进行优化。基于VMDEEMDLSTMLSSVM 风况预测模型的偏航控制策略优化方法,通过对一段时间内平均风速的预测,提前设定优化后的偏航控制参数,通过风向的预测,判断并控制偏航对风动作是否提前启动。算例分析结果表明,该策略可以有效地提高风电机组的发电量,减少偏航控制下的机舱转过角度,有利于提高风电场的经济效益。
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VMD-EEMD-LSTM-LSSVM 预测模型原理, figureFileSmall=Plm02lPWgCssmIrhOQ73Sg==, figureFileBig=48kt2TQw4enG36XYBTtABQ==, tableContent=null), ArticleFig(id=1154428711945360278, tenantId=1146029695717560320, journalId=1146119893612605453, articleId=1154428674284704343, language=EN, label=Fig. 3, caption=
Flow chart of yaw control optimization strategy based on wind condition prediction, figureFileSmall=IjD4m3oeujpoGH5gob5XVg==, figureFileBig=bKRaC86mp2OVECw6RTAsBg==, tableContent=null), ArticleFig(id=1154428712012469147, tenantId=1146029695717560320, journalId=1146119893612605453, articleId=1154428674284704343, language=CN, label=图 3, caption=
基于风况预测的偏航控制优化策略流程图, figureFileSmall=IjD4m3oeujpoGH5gob5XVg==, figureFileBig=bKRaC86mp2OVECw6RTAsBg==, tableContent=null), ArticleFig(id=1154428712066995103, tenantId=1146029695717560320, journalId=1146119893612605453, articleId=1154428674284704343, language=EN, label=Fig. 4, caption=
DBSCAN and K-Means filter Weibull parameters of wind direction, figureFileSmall=bAZJ1F6r+PiNzNep5SAGpQ==, figureFileBig=ZRFSno3u1RCDg5TU0z2AIQ==, tableContent=null), ArticleFig(id=1154428712125715365, tenantId=1146029695717560320, journalId=1146119893612605453, articleId=1154428674284704343, language=CN, label=图 4, caption=
DBSCAN 与 K-Means 筛选后的风向 Weibull 参数, figureFileSmall=bAZJ1F6r+PiNzNep5SAGpQ==, figureFileBig=ZRFSno3u1RCDg5TU0z2AIQ==, tableContent=null), ArticleFig(id=1154428712213795754, tenantId=1146029695717560320, journalId=1146119893612605453, articleId=1154428674284704343, language=EN, label=Fig. 5, caption=
Pareto optimal solution set of yaw control parameters in each wind speed range, figureFileSmall=DKuPdmMR++7x2uTHbdeTbQ==, figureFileBig=SSaS4a4eqPVFKS2rO9eaiA==, tableContent=null), ArticleFig(id=1154428712272516012, tenantId=1146029695717560320, journalId=1146119893612605453, articleId=1154428674284704343, language=CN, label=图 5, caption=
各风速区间下偏航控制参数的 Pareto 最优解集, figureFileSmall=DKuPdmMR++7x2uTHbdeTbQ==, figureFileBig=SSaS4a4eqPVFKS2rO9eaiA==, tableContent=null), ArticleFig(id=1154428712335430575, tenantId=1146029695717560320, journalId=1146119893612605453, articleId=1154428674284704343, language=EN, label=Fig. 6, caption=
Yaw control parameter optimization and cabin position comparison before and after yaw early start, figureFileSmall=O2Y7+5BVZ50eSjTqFiH8eQ==, figureFileBig=2iDiWP8DF5+6WxENOAVJ1Q==, tableContent=null), ArticleFig(id=1154428712394150833, tenantId=1146029695717560320, journalId=1146119893612605453, articleId=1154428674284704343, language=CN, label=图 6, caption=
偏航控制参数优化与偏航提前启动前、后机舱位置对比, figureFileSmall=O2Y7+5BVZ50eSjTqFiH8eQ==, figureFileBig=2iDiWP8DF5+6WxENOAVJ1Q==, tableContent=null), ArticleFig(id=1154428712452871095, tenantId=1146029695717560320, journalId=1146119893612605453, articleId=1154428674284704343, language=EN, label=Table 1, caption=
The number of wind data in each wind speed interval, figureFileSmall=null, figureFileBig=null, tableContent=
| 风速/m | 数据组数 | 区间 | 数据组数 |
| 0~3 | 814 | 7~9 | 487 |
| 3~5 | 717 | 9~11 | 287 |
| 5~7 | 712 | 11 以上 | 346 |
), ArticleFig(id=1154428712515785660, tenantId=1146029695717560320, journalId=1146119893612605453, articleId=1154428674284704343, language=CN, label=表 1, caption=
各风速区间的风数据组数, figureFileSmall=null, figureFileBig=null, tableContent=
| 风速/m | 数据组数 | 区间 | 数据组数 |
| 0~3 | 814 | 7~9 | 487 |
| 3~5 | 717 | 9~11 | 287 |
| 5~7 | 712 | 11 以上 | 346 |
), ArticleFig(id=1154428712574505919, tenantId=1146029695717560320, journalId=1146119893612605453, articleId=1154428674284704343, language=EN, label=Table 2, caption=
Yaw control parameters are optimized for each wind speed range, figureFileSmall=null, figureFileBig=null, tableContent=
| 风速/m | | |
| 3~5 | 15 | 25 |
| 5~7 | 16 | 20 |
| 7~9 | 10 | 15 |
| 9~11 | 8 | 15 |
), ArticleFig(id=1154428712641614789, tenantId=1146029695717560320, journalId=1146119893612605453, articleId=1154428674284704343, language=CN, label=表 2, caption=
各风速区间优化后偏航控制参数, figureFileSmall=null, figureFileBig=null, tableContent=
| 风速/m | | |
| 3~5 | 15 | 25 |
| 5~7 | 16 | 20 |
| 7~9 | 10 | 15 |
| 9~11 | 8 | 15 |
), ArticleFig(id=1154428712708723658, tenantId=1146029695717560320, journalId=1146119893612605453, articleId=1154428674284704343, language=EN, label=Table 3, caption=
Prediction accuracy index of wind speed and wind direction of three forecasting models, figureFileSmall=null, figureFileBig=null, tableContent=
| 预测模型 | 单步风速预测指标 | 12 步风向预测指标 |
| MAE | RMSE | MAE | RMSE |
| VMD-LSTM | 0.23 | 0.31 | 0.73 | 0.85 |
| VMD-EEMD | 0.13 | 0.16 | 0.54 | 0.61 |
| VMD-EEMD- LSTM-LSSVM | 0.11 | 0.13 | 0.31 | 0.39 |
), ArticleFig(id=1154428712767443918, tenantId=1146029695717560320, journalId=1146119893612605453, articleId=1154428674284704343, language=CN, label=表 3, caption=
3 种预测模型风速与风向预测精度指标, figureFileSmall=null, figureFileBig=null, tableContent=
| 预测模型 | 单步风速预测指标 | 12 步风向预测指标 |
| MAE | RMSE | MAE | RMSE |
| VMD-LSTM | 0.23 | 0.31 | 0.73 | 0.85 |
| VMD-EEMD | 0.13 | 0.16 | 0.54 | 0.61 |
| VMD-EEMD- LSTM-LSSVM | 0.11 | 0.13 | 0.31 | 0.39 |
), ArticleFig(id=1154428712851330005, tenantId=1146029695717560320, journalId=1146119893612605453, articleId=1154428674284704343, language=EN, label=Table 4, caption=
Data comparison before and after yaw control strategy optimization, figureFileSmall=null, figureFileBig=null, tableContent=
| 数据 序号 | 风速 m/s | 参数优化前 发电量 | 参数优化后 发电量 | 偏航提前启 动后发电量 | 参数优化前 机舱转过 角度/(°) | 参数优化后 机舱转过 角度/(°) | 偏航提前启 动后机舱转 过角度/(°) | 参数优化前 偏航启动 次数 | 参数优化后 偏航启动 次数 | 偏航提前 启动后偏航 启动次数 |
| 1 | 9~11 | 762.185 9 | 770.368 5 | 776.3625 | 132.992 5 | 81.130 0 | 52.125 0 | 16 | 12 | 9 |
| 2 | 9~11 | 867.986 4 | 877.197 9 | 877.201 3 | 10.502 5 | 7.8375 | 10.2375 | 2 | 2 | 2 |
| 3 | 9~11 | 685.589 2 | 694.482 3 | 697.316 5 | 93.645 0 | 86.262 5 | 46.662 5 | 9 | 14 | 7 |
| 4 | 7~9 | 675.506 6 | 681.615 6 | 686.857 8 | 5.3150 | 69.955 0 | 63.220 0 | 1 | 9 | 10 |
| 5 | 3~5 | 43.4120 | 43.296 7 | 43.583 2 | 95.420 0 | 51.235 0 | 87.930 0 | 9 | 3 | 7 |
| 6 | 5~7 | 208.250 5 | 211.004 1 | 213.872 4 | 101.235 0 | 80.475 0 | 94.9875 | 6 | 5 | 7 |
| 7 | 7~9 | 432.334 4 | 436.215 4 | 439.983 2 | 0 | 58.232 5 | 51.4950 | 0 | 9 | 9 |
| 8 | 5~7 | 253.718 0 | 255.168 8 | 256.003 1 | 74.880 0 | 14.675 0 | 15.2750 | 8 | 2 | 2 |
), ArticleFig(id=1154428712918438877, tenantId=1146029695717560320, journalId=1146119893612605453, articleId=1154428674284704343, language=CN, label=表 4, caption=
偏航控制策略优化前、后数据对比, figureFileSmall=null, figureFileBig=null, tableContent=
| 数据 序号 | 风速 m/s | 参数优化前 发电量 | 参数优化后 发电量 | 偏航提前启 动后发电量 | 参数优化前 机舱转过 角度/(°) | 参数优化后 机舱转过 角度/(°) | 偏航提前启 动后机舱转 过角度/(°) | 参数优化前 偏航启动 次数 | 参数优化后 偏航启动 次数 | 偏航提前 启动后偏航 启动次数 |
| 1 | 9~11 | 762.185 9 | 770.368 5 | 776.3625 | 132.992 5 | 81.130 0 | 52.125 0 | 16 | 12 | 9 |
| 2 | 9~11 | 867.986 4 | 877.197 9 | 877.201 3 | 10.502 5 | 7.8375 | 10.2375 | 2 | 2 | 2 |
| 3 | 9~11 | 685.589 2 | 694.482 3 | 697.316 5 | 93.645 0 | 86.262 5 | 46.662 5 | 9 | 14 | 7 |
| 4 | 7~9 | 675.506 6 | 681.615 6 | 686.857 8 | 5.3150 | 69.955 0 | 63.220 0 | 1 | 9 | 10 |
| 5 | 3~5 | 43.4120 | 43.296 7 | 43.583 2 | 95.420 0 | 51.235 0 | 87.930 0 | 9 | 3 | 7 |
| 6 | 5~7 | 208.250 5 | 211.004 1 | 213.872 4 | 101.235 0 | 80.475 0 | 94.9875 | 6 | 5 | 7 |
| 7 | 7~9 | 432.334 4 | 436.215 4 | 439.983 2 | 0 | 58.232 5 | 51.4950 | 0 | 9 | 9 |
| 8 | 5~7 | 253.718 0 | 255.168 8 | 256.003 1 | 74.880 0 | 14.675 0 | 15.2750 | 8 | 2 | 2 |
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