Recent content by Zrakk

Mandy D.- Exactly. I'm doing an investigation of a circuit -S1 and S2- located between rectifier output and DC link in order to transmit a lot of power between a.c. networks (point-to-point configuration). Windadct.- As you can see in the circuit linked above (S1 and S2), at that time I...

Thanks a lot for your answer. So, in order to ask a manufacturer, should I need the following parameters right?: Rated Power - Sn Rated Voltage - Un Rated Freq - Fn Also, citing from J&P Transformer Book, 13ed. I can assume Un > 400 kV. "In both cases, however, system interconnections are...

As common I mean inductances and eq resistances. I've been searching for high voltage transformers (to use with a 12-pulse rectifier) but I only see catalogues just trying to sell the thing. Do you have any recommendation as a book or another reference?. Thanks in advance!

That's correct. This circuit is 'supposed' to represent the rectifier side of a HVDC link. Those inductors before both rectifiers represent the transformer's inductance (as it more easy to modify on software instead of going into the transformer). Those IGBTs are for discharging the capacitor...

Both rectifiers. I call 'snubber' that IGBT+DIODE+CAP configuration (D1, D2, IGBT1, IGBT2 and C). The DC Link will be a +/- link at the right of those 300uF cap in a way that the AC component of this "triangular current" circulates through 'Diode Rectifier', 'Snubber 1' and C1.

In a nutshell, this capacitor should be able to charge and discharge to follow a triangular reference. Also, this snubber is supposed to be used in a HVDC system so that's why for the DC Voltage Sources case I used 250kV and of course elements like IGBTs is just to represent an idea as it is...

Hello, I'm new and I want to try asking here for any comment or suggestion. What I have, is a common 12-pulse rectifier with its bridges in series and I included an snubber between DC-link and rectifier output. Is important to note that all inductances before the rectifier are small in order to...