This paper investigates Power-quality improvement of the traction power-supply system (TPSS) of the trains. The integration of renewable energy and distributed generation to railway trains supply systems combined to the power quality constitutes technically a major contribution in the paper. The present work deals with the design and control of PV solar and two single-phase five level inverters associated with LeBlanc transformer to supply two single phases' loads and generate a 750 V for utilities for the train. The supply of railway system from three-phase grid to two phases constitutes a challenge when the loads in the train side are unbalanced. The proposed configuration ensures complete compensation of unbalanced loads, the reactive power, and the current harmonics in three phase grid system. The control of both inverters uses a sliding mode and an indirect control respectively. The first inverter control regulates the dc bus voltage, compensates the reactive and the current harmonics for the correspondent phase. The second indirect control applied to the second inverter compensates the reactive, the unbalance secondary current and the current harmonics for the correspondent phase. The current balance between the two single-phase sources ensures a balance of three phase's current in the grid side. The proposed system is modeled; simulated using Matlab Simulink/Power Systems and the performance of the proposed system is analyzed and discussed.