THD Reduction in Onboard Three Phase AC Voltage by Means of an Improved Modulator Articles uri icon

publication date

  • October 2009

start page

  • 272

end page

  • 276


  • 10


  • 85

International Standard Serial Number (ISSN)

  • 0033-2097


  • AC voltage generation in rail applications (auxiliary services), usually employs optimized PWM feedforward schemes in order to control the inverter. In this kind of applications the THD reduction of the filtered output voltage together with
    the reduced weight of the static converters are the main goals to be reached. In
    order to achieve these objectives, the most commonly used optimized PWM
    techniques are going to be compared and an improved modulator is proposed. The
    theoretical comparison as well as the modulator performance has been validated