中国机械工程

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基于改进粒子滤波的重型燃气轮机跳机故障预测

滕伟;韩琛;赵立;武鑫;柳亦兵   

  1. 华北电力大学电站能量传递转化与系统教育部重点实验室,北京,102206
  • 出版日期:2021-01-25 发布日期:2021-02-01
  • 基金资助:
    国家自然科学基金(51775186);
    中央在京高校重大成果转化项目(ZDZH20141005401);
    中央高校基本科研业务费专项资金(2018MS013)

Tripping Fault Prediction of Heavy-duty Gas Turbines Based on Improved Particle Filter

TENG Wei;HAN Chen;ZHAO Li;WU Xin;LIU Yibing   

  1. Key Laboratory of Power Station Energy Transfer Conversion and System, Ministry of Education, North China Electric Power University, Beijing, 102206
  • Online:2021-01-25 Published:2021-02-01

摘要: 重型燃气轮机是清洁发电的重要装备,其轴系的振动水平是机组运行状态的直观表征。跳机故障是由于振动加大而触发的非计划突然停机,会对燃气轮机的核心部件(如叶片、拉杆等)产生较大冲击,造成设备损伤。提出基于改进粒子滤波的重型燃气轮机振动趋势预测方法,通过对粒子滤波方法的分析,提出一种二次重采样策略,使得改进粒子滤波对粒子匮乏现象更具抵抗力,具有更好的适应性。所提方法在某300 MW重型燃气轮机的跳机故障中得到验证,能够准确预测跳机的故障时刻,为燃气轮机的控制策略调整提供指导。

关键词: 重型燃气轮机, 跳机故障预测, 改进粒子滤波, 二次重采样

Abstract: Heavy-duty gas turbine was the significant equipment in clear energy, and the vibration level of the shafting system is a visual representation of the operating states. Tripping faults were as a kind of unplanned sudden shutdown triggered by increasing vibrations, which would cause a large impact on the core components of the gas turbine, such as blades and tie rods, resulting in equipment damages. A method for predicting the vibration trend of heavy-duty gas turbines was proposed based on improved particle filter. By analyzing the particle filter, a secondary resampling strategy was proposed to make the improved particle filter more resistant to particle degeneracy and improve the adaptability of particle filter. The improved method was verified in a tripping fault of a 300 MW heavy-duty gas turbine, which shows a superior prediction accuracy of tripping fault time. The proposed approach may guide the control strategy of gas turbines.

Key words: heavy-duty gas turbine, tripping fault prediction, improved particle filter, secondary resampling

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