基于小波分析凝结水泵变频调速系统的参数辨识研究

Study on Parameter Identification for Varying Frequency Speed Control System of Condensate Pump Based on Wavelet Analysis

为了能够提高燃煤供热机组凝结水泵变频调速系统参数辨识的准确性,深入地分析了小波分析在其中的应用。阐述了小波变换的基本理论,研究了信号的小波基展开和重构,讨论了燃煤供热机组凝结水泵变频调速系统的理论模型,探讨了基于小波分析燃煤供热机组凝结水泵变频调速系统的参数辨识算法,进行了仿真实验,试验结果表明该方法具有较高的参数识别精度。

In order to improve correctness of parameter identification of varying frequency speed control system of condensate pump in coal heat supply unit,the application of wavelet analysis on it was studied in depth.The basic theory of wavelet transformation was described,the development and reconstruction of signal based on wavelet analysis was carried out,the theory model of varying frequency speed control system of condensate pump in coal heat supply unit was discussed,the algorithm of parameter identification of varying frequency speed control system of condensate pump in coal heat supply unit was discussed,the simulation test was carried out,results showed that this method had higher precious of parameter identification.