Power Quality Improvement In Electrical Railway Power System With Fuzzy Based Railway Power Flow Controller

Abstract

A power factor oriented railway power flow controller (RPFC) for the power quality improvement of ERPS using fuzzy is proposed in this paper. This power can be produced only by a balanced system without current and voltage harmonics. Fuzzy Logic compensation is proposed to diminish the Total Harmonic Distortion (THD) to International standards. Here we are using the fuzzy controller compared to other controllers i.e. The fuzzy controller is the most suitable for the human decision-making mechanism, providing the operation of an electronic system with decisions of experts. The comprehensive relationship of the primary power factor, converter capacity, and the two phase load currents are built in this paper. Besides, as the main contribution of this paper, the optimal compensating strategy suited the random fluctuated two phase loads is analyzed and designed based on a real traction substation, for the purposes of satisfying the power quality standard, enhancing RPFC’s control flexibility, and decreasing converter’s capacity. Finally, by using the simulation results we can analyze the proposed method.