direct drive a inverter with a solar panel

[hamlet]

I can't find a DC-DC 12v-90v Linear Current Booster. So, I am considering using

an inverter hooked straight to the panels, run the AC thru 2/0 wire to my pump that

is about 1000 feet away, then rectify it. I'm already using a battery/inverter/rectifier to do the same thing, but it would be better for me to do this task without batteries.  

Does anybody see a problem with this? My panels are BP275 (75w), 17volts, 4.4A. I might need to use 2 or 3 of them, wired parallel. I've found an inverter that accepts up to 16.5 volts, so I'm thinking I'd have to drop the voltage from the panels with a 20A diode to get a match.

Otherwise, does anyone here have a curcuit for an Linear Current Booster? Any circuit would be helpful, even if it isn't 90v.

Thanks guys,

Hamlet

[ghurd]

I don't expect it would work at all.

The inverter will supply the power to the pump.

But what happens when the sun isn't perfect?  

The panel amps are low, they charge the cap in the inverter, the inverter kicks on, the cap drains faster than the solar can make, the inverter goes LVD, the caps charge up, etc...  And it would happen very quickly.

I expect the motor and inverter would be ruined in a very short time.

G-

[shah]

I am now days working on the same project, to lift water upto 200 ft head ,

I am using APC-UPS 2200W, SINE WAVE, CONNECTD DIRECTLY WITH UPS no batteries,and a submercible pump of 1 hp connected with UPS.

This UPS is 48 volt in DC, SO I arrange solar pannal 4x80 w 12 volt 4.5 Amp pannel in

series,  two set so volt same, ampare doubles. 9 amp.

when I started UP, it started working with  220 volt ac, I connected pump, the

UPS switch off. did run pump.

I revised the exercise with 4 batteries in series, and them connectd with UPS.

I started UPS on AC, 220 volt, then I connected pump, it start running,

I swtich off AC, the UPS run on battery, and pump didnt stop,

I checked following noting

when running on 220 volt AC  pump show 5amp load

when running on batteries dc pump show 15 amp load,

so what I concluded, that I have to increase no of solar pannal upto 15 or above

15amp, to run pump directly with solar panals, via UPS.

as soon as this all complete I will again post all the details in this forum,

with photo graph,

If some one did this exercise before, they send their comments

Shah Kamal

Pakistan