A Genetic Algorithm Design Method for A Current Controller Employing "Two Ahead" Prediction

Milijana Odavic, Pericle Zanchetta, Mark Sumner
2006 2006 IEEE International Conference on Industrial Technology  
This paper introduces an improved predictive control for the control of the current in a three-phase active shunt power filter (ASF). The proposed control system compensates for unavoidable digital controller delays, and provides an accurate prediction of the ASF behaviour in the next sampling period. A "Two Ahead" current reference prediction is proposed which estimates the filter current two samples in advance. The predictor is based on a second order extrapolation method, and can also
more » ... and can also account for sudden changes in the reference waveform. A Genetic Algorithm is used for parameter optimisation in the reference prediction/extrapolation formula. In addition to good tracking performance, the proposed controller is insensitive to measurement noise. The effectiveness of the proposed method is verified through experiment.
doi:10.1109/icit.2006.372364 fatcat:iefxvudwdjd4vkz4diirqvx2bm