keywords

• auxiliary railway power supplies&cr; dc/ac conversion&cr; inverters&cr; optimization methods&cr; railway applications&cr; thd&cr; harmonic spectrum&cr; modulation techniques&cr; optimal switching&cr; optimization method&cr; optimized modulation&cr; output voltages&cr; overmodulation region&cr; power supply&cr; railway applications&cr; selective harmonic elimination&cr; space vector pwm&cr; thd&cr; theoretical performance&cr; third harmonic&cr; voltage generations&cr; voltage source inverter&cr; electric inverters&cr; exhibitions&cr; frequency modulation&cr; power electronics&cr; railroads&cr; optimization&cr