Optimal control of shunt active filter based on Permanent Magnet Synchronous Generator (PMSG) using ant colony optimization algorithm

An optimal control technique of the injected reference current waveform of shunt active power filter is proposed in this paper using ant colony optimization algorithm. The application of the instantaneous P-Q concept in wind energy conversion system (WECS) is introduced. The planned WECS is formed by permanent magnet synchronous generator (PMSG) wind turbine connected to the electrical network through shunt active filter. SAF uses the generated wind energy to feed loads connected at the point of common coupling (PPC), compensates current harmonics and injects the excess of this energy into the electrical network. Firstly, the controller designed according to Fuzzy logic rules is such that the system is fundamentally robust. In the second case, the optimal adjustment of the membership functions and normalization gains are realized by using Ant Colony Optimization. Simulations results show the best dynamic behaviour and performance control compared with traditional Fuzzy controller, as well as effective in reducing harmonic and power factor improvement.