Artificial Neural Network for static load models

For a given sets of input voltages and output power (active and reactive), I need to develop a neural network for training and testing this data using functional link ANN, BPANN and exponent model using least square method.

Given data is the input voltages and output power. I basically need algorithm for using ANN to train and test the given data.

So basically I want to know the training rule for functional link ANN and BPANN to implement the given input and output data for training and testing purpose.