New Artificial Neural Network Approach for Measuring Harmonics
Guangzhu Wang · 2004
A new approach based on artificial neural network (ANN) for measuring power harmonics is proposed.It analyses and calculates the three-phase current of current sample time and of the last by a multi-layer feedforward neural network(MLFNN),then the harmonic components of the three-phase current are got.The structure of this neural network and the learning algorithm for training it are presented.The simulation studies are carried out by using this neural network into harmonic measuring of rectifier.The simulation results show that the harmonic components can be detected at real time with high precision.It is validated further that this approach is more precise with shorter delay compared with that based on instantaneous reactive power theory.