Solving Power Quality Problem of 750 V DC Railway Substation With DSTATCOM Using SVPWM

Voltage stability in power systems is critical. The fault or any case cause voltage unstability that may occur in three-phase and single-phase electrical power systems emerge power quality problems. Voltage stability in railways is important because of the operation continuity. The fault that occur in the AC part of the system may affect also DC voltage due to the usage of the AC grid for the generation of the DC voltage in substations. In this study, solving power quality problem of 750 V DC railway substation with Dstatcom (Distribution Static Synchronous Compensator ) using SVPWM (Space Vector Pulse Width Modulation) is investigated. The fault that may occur in the substation is simulated and the voltage stability problem is eliminated with Dstatcom. Comparative analyzes results are given for the AC and DC voltage about the simulation findings and the improvement of the system is revealed