Recent content by GregoryGr

Thank you, I will check this out. What you are suggesting I am currently experimenting with (and even though I haven't managed to work it out, it seems to be responding in the right direction! ). Truth be told, current control without classic hysterysis or bandwidth control seems strange to me...

Hm, I haven't really modeled the grid, it's a fixated 3ph sine source with 400 polar voltage/50Hz and an inductance. What did you have in mind for the grid? The approach was to orient the grid voltage so Vq = 0 as to use Iq and Id for decoupled power control (sensors are placed in the PCC). So...

Does anyone have experience modeling active/reactive management in an inverter? I'm working on it for a project, more precisely I'm trying to implement that PQ control with references of voltage, as is seen in this image: Problem is I've tried many PI regulators, and my I_dq doesn't want to...

So here's the update: I went to an electronics store with my multimeter and spare fuses, the guy working there was kind enough to solder it for free so I bought some 555 IC and capacitors from him. The multimeter works like a charm! :D But I'm considering getting a soldering iron myself, I...

Thanks for the help. I'll update you tomorrow. Unfortunately there isn't enough space for such fixes, it's a "portable" multimeter...

Well I can't find someone who has a soldiering gun so I guess I'll take it to an electronics store and see if they'll repair it...

Here you go

No that was actually very easy. Got a pack of 10 for 1 euro in an electronics store. The problem is I have no gun so if it's expensive I'll probably buy a new multi...

So if I got a gun I could melt the sides and stick another fuse there?

Since it's my first time playing around with a multimeter, i finally short-circuited it, tried to measure a current incorrectly, so now my fuse is burnt... The problem is, the fuse is soldered on my multimeter. What should I do, get another multimeter or get a soldering gun and try to fix it...

nope, sorry... But I think it's this one: http://cpc.farnell.com/1/1/11782-breadboard-round-hole-840-points-bx-4112n-pros-kit.html

Here's the breadboard...

Homework Statement Basically construct the circuit on a breadboard and take some measurements: http://ithaki.eng.auth.gr/aetos/elab/image.php?x=44 Homework Equations - The Attempt at a Solution - My only question is how am I supposed to do the GND grounding that it wants? o.O

Yes, I found out that you need to put these in \usepackage[english,greek]{babel} \usepackage[iso-8859-7]{inputenc} But it still doesn't work...

I am using ubuntu, and downloaded "Gummi" latex editor to make latex papers. However, even though it is nice and easy to use, I need it to show Greek characters as well. And I'm not talking about the latex symbols like \lambda , but I need to be able to write sentences in Greek but unfortunately...