GONG Huanchun. Double hidden layer RBF process neural network based online prediction of steam turbine exhaust enthalpy[J]. Thermal power generation, 2014, 43(7): 32-35.
GONG Huanchun. Double hidden layer RBF process neural network based online prediction of steam turbine exhaust enthalpy[J]. Thermal power generation, 2014, 43(7): 32-35.DOI:
In order to diagnose the unit economic performance online
the radial basis function(RBF)process neural network with two hidden layers was introduced to online prediction of steam turbine exhaust enthalpy.Thus
the model reflecting complicated relationship between the steam turbine exhaust enthalpy and the relative operation parameters was established.Moreover
the enthalpy of final stage extraction steam and exhaust from a 300MW unit turbine was taken as the example to perform the online calculation.The results show that
the average relative error of this method is less than 1%
so the accuracy of this algorithm is higher than that of the BP neutral network.Furthermore
this method has advantages of high convergence rate