Hello, you may want to look for AC voltage regulators. They are usually used for this exact purpose when the line voltage is not "clean". Depending on type, they regulate the voltage, frequency, phases, etc. However they may end up being more expensive than just using DC (if possible). So if your equipment can work with DC, I'd just get some high quality DC power supplies which would provide nice, smooth DC output you can run your devices. If you absolutely need AC, regulator is the option with least power loss, an online UPS with a good battery block would be my first choice, if it is feasible budget wise. You can also try a line interactive UPS, in your case I think this would also provide a clean enough solution, as long as your generator is able to provide an acceptable level of power, even if it is a little "dirty". Lastly you can just convert your AC to DC and then use an inverter, but this would cause the most power loss/heat and I think this would be more expensive than a line interactive UPS.
So depending on your budget a line interactive UPS might be the way to go. It may have small "gaps"in power delivery depending on input though. As long as you have a continuous power delivery from your generator with dirty but stable output you should not have any problem though. Lastly I'm pretty sure there are people here with much deeper knowledge than me, so feel free to correct me if I'm wrong on any of this :) With my best regards to my new community! Gokhan On Mon, Jun 15, 2020 at 4:40 PM Will Gray via BVARC <[email protected]> wrote: > Fellows I did find a AC-AC inverter. Don't know the price but have > asked. ABSOPULSE > > The FC 2KP-EW/A Series modular ac-ac frequency converter system was > designed to deliver a clean sine-wave output from ″dirty″ generator voltage > under extreme environmental conditions. > > 73s > > Will, KB7QL > > On Mon, Jun 15, 2020 at 4:00 PM Robert Polinski via BVARC <[email protected]> > wrote: > >> Lots of generators have bad outputs. Most inverters made in the last few >> years have very good outputs as the older units produced a square wave or >> mortified square wave. Advances in electronics have allowed sine wave >> inverters to be produced at a much lower cost than they could a few years >> ago. Many generators are capacitor excited, (use a cap to provide >> excitation current) these have lower quality output, bad brushes or >> slip-rings can also cause poor output. One option is to operate the radio >> on a 12v battery with a charger running off the generator keeping the >> battery charged. A UPS will not work, most will switch to battery if the >> input power is not up to line spec. They do make online UPS that will >> smooth out the power but they are very expensive. They convert incoming >> power to DC and the batteries float on line, so there is no switching >> between the line & battery. I have installed these in data centers, but >> like I said are real pricey. The newer inverter generators have very good >> output but you get what you pay for. A generator you pay $200 for not going >> to preform like the $900 one. Most newer quality generators will be marked >> with their total harmonic distortion, or indicate they are low in it. Best >> for electronic equipment. I have worked on generators that by a volt meter >> had 120v output but the freq was 75hz. causing it to destroy equipment >> plugged into it . The speed affects the HZ. I know a ham that blew out his >> rig plugging it into a Colman generator with a bad output. Robert KD5YVQ >> >> >> >> *From:* BVARC <[email protected]> *On Behalf Of *Jonathan Guthrie >> via BVARC >> *Sent:* Monday, June 15, 2020 1:44 PM >> *To:* Will Gray via BVARC <[email protected]> >> *Cc:* Jonathan Guthrie <[email protected]> >> *Subject:* Re: [BVARC] Emergency Power Quality >> >> >> >> Perhaps I'm showing my ignorance, but I would think that an actual AC >> generator would have a better waveform than any inverter that isn't >> intended to tie into the grid. That makes me think that your generator is >> not working correctly. >> >> On 6/15/2020 1:14 PM, Will Gray via BVARC wrote: >> >> I have a 5500 watt diesel generator that gives me plenty of power but the >> waveform of the 60Hz power is flat topped and very rough (bad power for >> good equipment). I am looking for a source of an AC-AC inverter that would >> take that bad power and convert it to pure sine wave. Does anyone have any >> knowledge of a source of such an inverter. Lots of DC to AC inverters >> around small to very large (solar panel). But I have been unable to locate >> a an AC-AC inverter. >> >> >> >> 73s >> >> Will Gray, KB7QL >> >> >> >> -- >> >> 431 Forest Circle >> >> Ruston, LA 71270-2642 >> >> H:318-251-2219 >> >> C:318-265-2976 (text) >> >> [email protected] >> >> >> >> >> >> ________________________________________________ >> >> Brazos Valley Amateur Radio Club >> >> >> >> BVARC mailing list >> >> [email protected] >> >> http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org >> >> ________________________________________________ >> Brazos Valley Amateur Radio Club >> >> BVARC mailing list >> [email protected] >> http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org >> > > > -- > 431 Forest Circle > Ruston, LA 71270-2642 > H:318-251-2219 > C:318-265-2976 (text) > [email protected] > > ________________________________________________ > Brazos Valley Amateur Radio Club > > BVARC mailing list > [email protected] > http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org > -- Gokhan KORALTURK
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