Abstract
Aiming at the centrifugal fan which is widely used in power plants, in this paper using the strong nonlinear approaching capacity of RBFNN model and good generalizing ability of mathematic model, a monitoring model of fan performance based on hybrid NN is presented, which combines RBFNN model and partial least squares (PLS) model. The performance curves of 4-73No.8D are approached by experimental data and study results show that the model has higher precision than normal RBFNN model. In the last part of the paper, the application of the model under different conditions in studied.
