基于小波分析水轮机导叶开度的自适应控制研究

Adaptive Controlling Study on the Opening Degree of the Guide Vane of Hydroturbine Generator Based on Wavelet Analysis

为了能够提高水轮机导叶开度的控制效果,提高水轮机组的运行稳定性,研究了利用小波分析控制方法对其进行控制。首先,分析了水轮机导叶开度在开机和关机时的数学模型;接着,分析了小波分析的基本理论,讨论了其多分辨分析的性能;最后,进行了水轮机导叶开度的控制仿真分析,分析结果表明该方法具有较好的控制效果。

In order to improve the controlling effective of opening degree of the guide vane of hydroturbine, and improve the working stability of the hydroturbine set, the method of using wavelet analysis to control it was studied. Firstly, the mathematical model of opening degree of the guide vane of hydroturbine was analyzed when the hydroturbine was open or shutdown; and then the basic theory of the wavelet analysis was studied, and the multi-analysis of it was discussed; and finally the controlling simulation analysis of opening degree of the guide vane of hydr-turbine was carried out, and results showed that this method had better controlling effective.