The simulation of hybrid filter connected in series APF with PF base on grey prediction control

A hybrid active filter with grey prediction controller is presented which is connected in series APF with PF. The configuration design and the harmonic detection method is developed. The proposed method use grey model to achieve predictive control, according the actual sampling data from system as the original information, establish grey model (GM) and use it to forecast the development of behavior of the system, and compare it to the value of behavior, then make the decision. A simulation model of hybrid active filter based on EMTDC is presented. The simulation results show that the PHAPF with grey prediction controller gives a satisfactory performance in harmonic and reactive power compensation.