华电技术 ›› 2017, Vol. 39 ›› Issue (4): 15-18.

• 研究与开发 • 上一篇    下一篇

基于叶片摆振控制降低风机故障率

  

  1. 中国华电科工集团有限公司,北京〓100160
  • 出版日期:2017-04-25 发布日期:2017-05-23

Simulation study of fan blade shimmy control to reduce wind turbine fault rate

  1. China Huadian Engineering Company Limited, Beijing 100160, China
  • Online:2017-04-25 Published:2017-05-23

摘要:

我国风电行业经过近年来迅速增长,伴随着大量风电机组出质保期,风电机组运维日趋迫切,叶片摆振是造成风电机组故障的主要原因之一。针对风机运维中遇到的叶片摆振问题,提出了最小最大线性二次型高斯最优控制方法。该方法应用欧拉-拉格朗日方程对风机叶片的振动系统建立数学模型,并设计最小最大LQG控制器。仿真结果显示:控制器对叶片的摆振有很好的控制作用,达到了降低风电机组故障率、提高风电机组发电效率的目的。

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Abstract:

Wind power industry has been rapidly increasing in recent years. With the warranty of wind turbine expired, operation maintenance is critical, especially the fan blade shimmy was already one of the main causes of wind turbine unit failure. To solve the problem of fan blade shimmy, minimum and maximum linear quadratic Guass optimal control theory was indicated. This method using EulerianLagrange equation of the vibration of the fan blade system mathematical model is established, and the minimum and maximum LQG controller scheme design. The simulation results show that the controller has good control effect to blade shimmy, reach the wind generator to reduce failure rate, to enhance the efficiency of the wind power generating units.

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