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renewableMark Guru Joined: 09/12/2017 Location: AustraliaPosts: 1678
Posted: 07:38am 23 Aug 2018
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Jeez, always in a rush to get something done in little spare time, I didn't notice that was there. Thanks again mate!
This will be an interesting project, considering I'm using a diesel with double the HP than Highlander's petrol engine. Edited by renewableMark 2018-08-24Cheers Caveman Mark Off grid eastern Melb
Madness Guru Joined: 08/10/2011 Location: AustraliaPosts: 2498
Posted: 10:03am 23 Aug 2018
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You can reduce the RPM of the Diesel, it will run more efficiently. Have look at the manual for the Engine it should have a kW output verses RPM chart.There are only 10 types of people in the world: those who understand binary, and those who don't.
renewableMark Guru Joined: 09/12/2017 Location: AustraliaPosts: 1678
Posted: 10:54am 23 Aug 2018
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The graph only goes down to 1200 rpm, I'll see how it goes at a lower rpm as it will obviously make less noise.Cheers Caveman Mark Off grid eastern Melb
Madness Guru Joined: 08/10/2011 Location: AustraliaPosts: 2498
Posted: 11:51am 23 Aug 2018
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If you had 2 F&P motors running off it at 1200 RPM that is probably about right. You will get quite a bit of noise from the intake also so having some sort of muffler on it will help too.
With those Engines, you can take the radiator off and replace it with a steel plate with water connections if you want to use the heat.There are only 10 types of people in the world: those who understand binary, and those who don't.
renewableMark Guru Joined: 09/12/2017 Location: AustraliaPosts: 1678
Posted: 08:51pm 23 Aug 2018
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Just looking at the wiring diagram and schematic, so for delta it needs both the start and finish lines connected together correct? Like this?
Cheers Caveman Mark Off grid eastern Melb
Madness Guru Joined: 08/10/2011 Location: AustraliaPosts: 2498
Posted: 09:20pm 23 Aug 2018
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Each red etc is doing exactly the same thing in your diagram, nothing wrong with that but if the wiring used is sufficient then the duplication is not necessary.
Then connect each of the red, green and blue to a 3 Phase Rectifier, if you go with a dual generator (which I think you will need to) then you need 2 rectifiers as well and keep the 2 generators separate until the output of the of rectifiers. You could also use the DC - DC of one of my regulators or use one of the Regulator Auxilary outputs to turn off the engine once a set battery voltage is reached. For example, have a solenoid that is turned on below 59V, once 59V is reached the Solenoid turns off and the engine stops. I can give you the code required if you decide to go that way. Edited by Madness 2018-08-25There are only 10 types of people in the world: those who understand binary, and those who don't.
renewableMark Guru Joined: 09/12/2017 Location: AustraliaPosts: 1678
Posted: 09:23pm 23 Aug 2018
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Thanks mate, that will make it easier. Should have time to give it a run later today.Cheers Caveman Mark Off grid eastern Melb
Madness Guru Joined: 08/10/2011 Location: AustraliaPosts: 2498
Posted: 09:38pm 23 Aug 2018
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Which model F&P motor are you using?There are only 10 types of people in the world: those who understand binary, and those who don't.
renewableMark Guru Joined: 09/12/2017 Location: AustraliaPosts: 1678
Posted: 09:43pm 23 Aug 2018
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I wired a .8mm 42 pole.
Also have a 42 pole .6mm and a 36 pole .6mmCheers Caveman Mark Off grid eastern Melb
renewableMark Guru Joined: 09/12/2017 Location: AustraliaPosts: 1678
Posted: 07:58am 25 Aug 2018
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OK revved the diesel to full power and only got 58v open circ from the 7x2 delta, I'll try it in star next, but was wondering if just using an induction motor would be easier? Not too sure how to go about that though. pulley on motor is 110mm OD, pulley on FP is 180mm OD.Edited by renewableMark 2018-08-26Cheers Caveman Mark Off grid eastern Melb
johnmc Senior Member Joined: 21/01/2011 Location: AustraliaPosts: 282
Posted: 09:42am 25 Aug 2018
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Mark what is the maximum revs allowed for the generator and what is the maximum revs for the diesel .
May be you can reverse the pulleys to increase generator output
Car alternator max output at about 7000 RPM.
Cheers john johnmc
Tinker Guru Joined: 07/11/2007 Location: AustraliaPosts: 1904
Posted: 10:01am 25 Aug 2018
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That would be engine RPM John, you might find the pulleys under the car bonnet make the alternator spin 3 times as fast.
I do not think that the F&P bearings are designed to run much faster than the washing machine spin speed (1500RMP tops?). You might get melt down of the plastic if the bearing gets too hot .Klaus
renewableMark Guru Joined: 09/12/2017 Location: AustraliaPosts: 1678
Posted: 10:43am 25 Aug 2018
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Well the diesel runs at 2200 so if my math is correct the FP should have been doing 1375rpm.
Sadly the pulleys have a different shaft diameter, so I'll have to buy new ones or different wiring. Or an induction motor, from what I can see, all you need to do is spin them faster than their rated speed and provide some charged caps to excite them to initialise the process. Seems a lot easier, hook that into the 240 line and backcharge.Cheers Caveman Mark Off grid eastern Melb
renewableMark Guru Joined: 09/12/2017 Location: AustraliaPosts: 1678
Posted: 10:56am 25 Aug 2018
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Inside that plastic housing is actually a substantial lump of aluminium which the sealed ball bearings are seated in, I can't see that as a weak spot, the rotor that spins would probably be the failure point as it's the only fast moving part, however they are pretty solid and as long as the balance was ok should do 2000rpm easy I reckon. And that really isn't very high compared to other crap. I'll just stand clear when testing in case any magnets start to fly out, that could get ugly!Cheers Caveman Mark Off grid eastern Melb
renewableMark Guru Joined: 09/12/2017 Location: AustraliaPosts: 1678
Posted: 11:02am 25 Aug 2018
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Funny thing was as the rpm increased it really started to increase in power with small increments of speed input, with just 100-200 more rpm I think the power would have greatly increased. Reckon I was just on the cusp of it's lower potential.Cheers Caveman Mark Off grid eastern Melb
Warpspeed Guru Joined: 09/08/2007 Location: AustraliaPosts: 4406
Posted: 08:33am 03 Sep 2018
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Try it wired in star Mark, you will get x 1.73 the voltage at the same rpm with the same pulley.Cheers, Tony.
renewableMark Guru Joined: 09/12/2017 Location: AustraliaPosts: 1678
Posted: 11:08am 03 Sep 2018
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I only hooked up two phases and got max of 500w, looks like the little turd needs to be spun faster for that wiring. Might wire up another differently and get some different pulleys, ideally the motor would be run reasonably low revs.
Have to fix some crap on the caravan as the wife wants to go on a trip.
Ohhhhh F money just grows on trees doesn't it? "Lets just go away for a few weeks"
Anyway always a juggle with work, wife, family, AND my own sanity.Cheers Caveman Mark Off grid eastern Melb
Warpspeed Guru Joined: 09/08/2007 Location: AustraliaPosts: 4406
Posted: 10:06pm 03 Sep 2018
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It needs all three phases star connected, and a proper six diode bridge rectifier. That is going to make a very big difference. Cheers, Tony.
brucedownunder2 Guru Joined: 14/09/2005 Location: AustraliaPosts: 1548
Posted: 12:25am 04 Sep 2018
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Been thinking ,Mark .
You got the inverter sussed out ,got ya extra panels on the roof ...
You definitely need a holiday ,forget the genie, hook up the caravan ,store 2 boxes of grog ,make sure the frog is working ,and hit the frog and toad ?
Mate, been following you for yonks, you done well , keep the cheese and kisses happy ,pack the billy lids and shove off to the beach. They'll love ya for it !.
havagoodweekend and dontforgettobringyagrogalong.
Bruce, the idiot from up here.Bushboy
renewableMark Guru Joined: 09/12/2017 Location: AustraliaPosts: 1678
Posted: 12:35am 04 Sep 2018
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Probably right Bruce.
Warp, the star was connected, I was just measuring the output from two phases from 1 bridge rectifier, the third phase was connected to a separate bridge rectifier, which wasn't measured/connected, my thinking was the measurement would be 2/3 of total. Cheers Caveman Mark Off grid eastern Melb
Notice. New forum software under development. It's going to miss a few functions and look a bit ugly for a while, but I'm working on it full time now as the old forum was too unstable. Couple days, all good. If you notice any issues, please contact me.
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