DC traction power substation using eighteen-pulse rectifier transformer system

<span lang="EN-US">Twelve-pulse rectification system had been widely integrated in today’s DC traction power sub-station (DC-TPSS). This configuration successfully mitigated low order harmonic distortion. As some research findings confirmed that the dc voltage and current ripple factors may further minimize by increasing number of pulses to 18, 24, or 36. paper presented a simulation study investigate prospect implementing an eighteen-pulse DC-TPSS. The theory phase-shifting transformer used produce 18-pulse rectifier is with verification. Simulation result shows 3.69% grid distortion index recorded without installing any filters. In addition, also be reduced for about 30% compared conventional twelve-pulse system.</span>