电抗率可调的交流调谐滤波器仿真研究

Recent years, power gird is being seriously polluted by harmonic with the mass use of non-linear load such as electronic power devices. Passive AC tunable filter is the most common harmonic suppression equipment in solving the harmonic pollution problems. However, this tunable filter has some disadvantages, such as detuning, over-current, reactive power optimization. This paper proposes an improved AC tunable filter based on adjustable reactance and carries out simulations under PSCAD/EMTDC. Simulation results show that this improved scheme of reactance-adjustable AC tuned filter is practicable.