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Recent content by flkris

  1. flkris

    PWM converter effects in a generator

    Yes, I do, LionelHutz. What I understood from "operational differences" mentioned by LiteYear was that there may be something different about the voltage overshoots and pulse rise time to be considered, other than being exactly the case for motors. If the changing in the power flow direction has...
  2. flkris

    PWM converter effects in a generator

    LiteYear: thanks a lot. All of this is important in order to evaluate the necessity of PD testing the generator, and for that I wanted to follow IEC standard 60034-18-41, which is meant for "converter-fed machines" - so I conclude I can only consider my generator as a converter-fed machine for...
  3. flkris

    PWM converter effects in a generator

    Thanks for answering LionelHutz, but what do you mean by back to back inverters? The only thing I was told about the type of converter was that: Active switching IGBT (AC-DC-AC), Leading PF control f: 2-4kHz, dv/dt < 1200V/µs, 1 converter/system. So should I believe this dv/dt value may occur...
  4. flkris

    PWM converter effects in a generator

    All, I've been reading IEC standard 60034-18-41 on PD testing type I insulation machines fed by voltage converters. It talks about all the hazards (for the electrical machine) coming with the utilization of these drives (PWM converters), and how there may be voltage overshoots at the terminals...
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