热力发电2024，Vol.53Issue(3)：34-41,8.DOI:10.19666/j.rlfd.202308138
双馈型风电机组传动链降载控制技术研究与仿真
Research and simulation of load reduction control technology for the drive train of doubly-fed wind turbine
摘要
Abstract
A feedback control strategy based on Kalman filter was proposed to quantitatively study the drive train torsional vibration mitigation of doubly-fed wind turbine,and the control effect of drive train torsional vibration was compared through simulation calculation.Taking the drive train of 7.0 MW doubly-fed wind turbine as the research object,the Kalman filter was used to estimate the twist angle of the drive train,and an additional electromagnetic torque of the generator was designed for torque control based on the estimated torsional speed of low-speed shaft.The load and power generation calculations were compared with virtual damping control and no-damping control over 20 years full life cycle.The results show that,the correlation between the twist angle of the low-speed shaft estimated by the Kalman filter and the actual value can reach 0.99.The key differences between the feedback control based on the Kalman filter,the virtual damping control and the non-damping control are as follows.The equivalent fatigue load of the low-speed shaft of the drive train reduces by 2.11%and 4.89%,respectively.The equivalent fatigue load of the high-speed shaft of the drive train reduces by 1.99%and 4.78%,respectively.The power generation reduces by 200 kW·h and 700 kW·h,respectively.It can be concluded that the Kalman filter has a good estimating effect on the twist angle of drive train,and the designed additional electromagnetic torque based on the estimated torsional speed of low-speed shaft obtained by Kalman filtering has a very good suppression effect on the torsional vibration of the drive train.关键词
双馈型风电机组/传动链扭振/卡尔曼滤波/等效疲劳载荷/年发电量Key words
doubly fed wind turbine/drive train torsional vibration/Kalman filter/equivalent fatigue load/annual energy output引用本文复制引用
刘河生,雷航,张瑞刚..双馈型风电机组传动链降载控制技术研究与仿真[J].热力发电,2024,53(3):34-41,8.基金项目
西安热工研究院有限公司科技项目(TQ-22-TYK27)Science and Technology Project of Xi'an Thermal Power Research Institute Co.,Ltd.(TQ-22-TYK27) （TQ-22-TYK27）
