Multiobjective optimization approach to the active power filter control

The optimisation approach to voltage harmonic elimination and voltage symmetry improving is presented. The parallel filter used for the voltage shape improving in three-phase four wire systems is considered. The nonlinear inductor is applied as a source of current and voltage harmonics. Two cases are considered: harmonic reduction and unbalanced load correction. The multiobjective optimization functions are applied to acquire the reference signal for active power filter control.