预测水轮机轴瓦温度故障的状态观测器的研究与应用

应用状态观测器理论建立了水电机组轴瓦温度预测模型 ,可描述水轮机轴瓦温度与影响其变化的主要因素之间客观存在的映射关系 ,并对轴瓦温度及其变化趋势作出预测 ,以实现对轴瓦温升和烧瓦故障的早期预警 。

Prediction model of hydropower unit bearing bush temperature is established based on state observer , which describes the relationship of mapping among main factors that influence on hydro-turbine bearing bush temperature. It predicts hydro-turbine bearing bush temperature and variational tendency. It can early predict the temperature rising of bearing bush and the fault of burning tile so that we can avoid the fault of burning tile.