By type, it is segmented into feedback artificial neural network,
feedforward artificial neural network, and others.
Then on the follow-up, especially important here is what I call a
feedforward, where they ask for ideas which is much more positive.'
An in-cylinder pressure
feedforward controller was designed firstly.
ANN type Training Forecasting Errors Errors
Feedforward backpropagation 1.1493 0.7732 Cascade
feedforward backpropagation 0.1689 0.2769 Layer recurrent 0.5380 0.6877 Elman backpropagation 0.5608 0.8863 iPSO-ANN 0.1307 0.1139 PSO-ANN 0.2285 0.3998 DEA-ANN 0.1653 0.2373 GA-ANN 0.2217 0.3154 TABLE III.
For the objectives of this nature,
feedforward networks are reasonably suitable.
The
feedforward control architecture is shown in Figure 4.
What needs to be specially mentioned is that, considering the phase delay in the sampling, grid voltage
feedforward sampling value [U.sub.st] is obtained by multiplying the fundamental RMS of [U.sub.s] with cos [theta].
In the experiment, we choose
feedforward backpropagation neural network and cascaded
feedforward backpropagation neural network, in which the hidden layer and output layer of the
feedforward BP neural network are only affected by the previous layer.
With each model change, the controller must be recalibrated and redeployed, which may involve adjustments to both the
feedforward and feedback portions of the controller.
In order to approximate f* we applied a deep
feedforward network with six hidden layers to our problem domain using the TensorFlow framework [12].
Wiener models are also used, for example as a robust nonlinear internal model control of stable Wiener systems [20], or block-oriented
feedforward control with demonstration to Wiener modelling [25], or modelling of memristor-based chaotic systems using nonlinear Wiener adaptive filters [24].
The feature vectors are then fed to a
feedforward neural network.
