This Project is about doing simulation of SINGLE-PHASE HYBRID ACTIVE POWER FILTER to reduce harmonics. I already build the non linear load in the simulink. Now by using the extension of pq theorem, The harmonics current need to be filtered out. I can post more precise detail about the project if someone are interested in doing it. I already attached the non linear simulnk file with the harmonics isolator. The non linear model is correct but the output of the harmonic isolator is incorrect . I need someone to troubleshoot it.