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 Post subject: Xantrex: Nice efficiency, fun with fishbowl
PostPosted: Sat Mar 22, 2003 12:50 am GMT EndGMT 
I got my first partial day of fishbowl logs. My first plot of the efficiency (DC watts in/AC watts out) looked mighty impressive.

The inverter stays in high 80s down to a little over 200 watts.

Of course I have the inverter pegged at around 2500 watts from 9:30 am to 12:30 pm. Fishbowl reported a peak of 2525 watts.

The two inverters with 44 BP-585s did over 18 kWh today, the one with 40 did a little over 16.

I guess the output from inverter is just a data dump of the instrumentation. I take it the lifetime kWh is not readable by Fishbowl.

BTW what is the last column in the fishbowl log, it's usually zero but occasionally I saw a value that looks similar to the voltage.

arnold


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 Post subject: Nice efficiency, fun with fishbowl
PostPosted: Sat Mar 22, 2003 12:27 pm GMT EndGMT 
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Goldfish
Goldfish

Joined: Fri Jan 31, 2003 2:01 am GMT EstGMT
Posts: 97
Location: Long Island, NY
Hi,

The last col. is inverter status. Normally it will be at 0 except durring the early morning startup and evening shud down where it will be reporting low DC voltage (code 245 if I remember correctly.)

The odometer on the right shows the lifetime KWh of only the time that fishbowl is connected.

Ron

[ March 22, 2003: Message edited by: Ron Schroeder ]


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 Post subject: Nice efficiency, fun with fishbowl
PostPosted: Sat Mar 22, 2003 12:53 pm GMT EndGMT 
Thanks. I just found the column headers today. I guess the headers are written at the beginning of the day (yesterday was a partial day).

arnold


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 Post subject: Nice efficiency, fun with fishbowl
PostPosted: Sat Mar 22, 2003 10:06 pm GMT EndGMT 
<BLOCKQUOTE><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><HR>Originally posted by Ron Schroeder:
The odometer on the right shows the lifetime KWh of only the time that fishbowl is connected.
<HR></BLOCKQUOTE>

The lifetime reading is stored in the fishbowl.ini file (life=xxxxx). You can modify that setting to have the the Fishbowl odometer match what your system has generated since originally being put on line or whatever starting point you want. Be sure to exit Fishbowl before changing it. On starting Fishbowl, it will read the new value.

[ March 22, 2003: Message edited by: Mark Lopez ]


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 Post subject: Nice efficiency, fun with fishbowl
PostPosted: Sun Mar 23, 2003 1:20 am GMT ErdGMT 
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Red Cobra Delta Guppy
Red Cobra Delta Guppy
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Joined: Sun Jun 02, 2002 1:01 am GMT EndGMT
Posts: 1158
Location: Lakeland Florida
Ron,

useful codes are

The codes , under status in FishBowl Logs

255 ac over 264 vac
253 ac under 211 vac
251 freq over 60.5
249 freq under 59.3
247 dc input volts over 125 VDC
245 dc input volts under 40VDC

You will probably see the DC input near 40 volts everytime there is a 245 code ... very common first and end of day in the logs

The Header is written when the FishBowl is started or when new log file is created

Henry [img]images/smiles/icon_razz.gif[/img] [img]images/smiles/icon_razz.gif[/img]


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 Post subject: Nice efficiency, fun with fishbowl
PostPosted: Sun Mar 23, 2003 1:31 am GMT ErdGMT 
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Red Cobra Delta Guppy
Red Cobra Delta Guppy
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Joined: Sun Jun 02, 2002 1:01 am GMT EndGMT
Posts: 1158
Location: Lakeland Florida
Arnold,

The Suntie Manual has a very accurate efficiency graph on page A5 of the manual.

This was done by Sandia using Yokogawa power meters which are .1% accuracy. The XR/GP is about 1% better than the ST/XR , this is due to internal electronics changes as well as better fan management

Peak efficiency is 91% @ 1400 watts , the curve is remarkably flat which makes for very linear scaling from small to large systems

Henry [img]images/smiles/icon_razz.gif[/img] [img]images/smiles/icon_razz.gif[/img]


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 Post subject: Nice efficiency, fun with fishbowl
PostPosted: Tue Mar 25, 2003 2:16 pm GMT EthGMT 
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Red Cobra Delta Guppy
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Joined: Sun Jun 02, 2002 1:01 am GMT EndGMT
Posts: 1158
Location: Lakeland Florida
<BLOCKQUOTE><font size="1" face="Verdana, Helvetica, sans-serif">quote
Quote:
ability to select logging once every 1, 2, 3, 4, 5, or 6 seconds


I aggree , I'll work on getting a 1.3 done , the one second logging is good for beta testing and debug , but is a bit much for everyday watching. You would figure , in 2003, Microsoft Excel could handle for than 32k data points !!

<BLOCKQUOTE><font size="1" face="Verdana, Helvetica, sans-serif">quote
Quote:
another file that records once per day with WHr, peak watts


Would it be OK if this is done at the new day roll over ? , the only issue I can think of is knowning when the day is really over and midnight seems like a safe bet

Henry [img]images/smiles/icon_razz.gif[/img] [img]images/smiles/icon_razz.gif[/img]


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 Post subject: Nice efficiency, fun with fishbowl
PostPosted: Tue Mar 25, 2003 4:35 pm GMT EthGMT 
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Goldfish
Goldfish

Joined: Fri Jan 31, 2003 2:01 am GMT EstGMT
Posts: 97
Location: Long Island, NY
<BLOCKQUOTE><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><HR>Originally posted by Solar Guppy:
Would it be OK if this is done at the new day roll over ? , the only issue I can think of is knowning when the day is really over and midnight seems like a safe bet

Henry [img]images/smiles/icon_razz.gif[/img] [img]images/smiles/icon_razz.gif[/img]
<HR></BLOCKQUOTE>

Yes, I think so since current day info is on the fishbowl window. Another possability would be to over write the current day record each hour or each minute.


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 Post subject: Nice efficiency, fun with fishbowl
PostPosted: Tue Mar 25, 2003 8:57 pm GMT EthGMT 
Henry et al,

Is there any way to get Excel to combine or average data points to reduce the data set below 32,000 points?

Gordon


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 Post subject: Nice efficiency, fun with fishbowl
PostPosted: Wed Mar 26, 2003 1:39 am GMT EthGMT 
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Goldfish
Goldfish

Joined: Fri Jan 31, 2003 2:01 am GMT EstGMT
Posts: 97
Location: Long Island, NY
I have been using Fishbowl for a couple of weeks now and really like it.

I do have a couple of "Wish List" features that I would like.

1. the ability to select logging once every 1, 2, 3, 4, 5, or 6 seconds and possably also once per minute instead of just every second to allow for smaller files/ day. (Excel limits files to 32,000 records for graphing which is less than 12 hrs at once per second.)

2. another file that records once per day with WHr, peak watts, any status errors other than 245, and time connected for that day plus cumulative WHr for current month.

[ March 25, 2003: Message edited by: Ron Schroeder ]


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 Post subject: Nice efficiency, fun with fishbowl
PostPosted: Wed Mar 26, 2003 2:20 am GMT EthGMT 
<BLOCKQUOTE><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><HR>Originally posted by Gordon:
Henry et al,

Is there any way to get Excel to combine or average data points to reduce the data set below 32,000 points?

Gordon
<HR></BLOCKQUOTE>

I was trying to use "subtotals" in Excel to do this but I didn't have something to key the summarization on. So that didn't get anywhere.

Now I'm playing with perl scripts do create summary data sets. I wrote a quick script to take 60 seconds worth of data and write out a summary (average) of the interesting values. Now I can generate a full graph for the entire day.

BTW it appears there are some padding/lead characters in front of the "whr" field.

arnold


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 Post subject: Nice efficiency, fun with fishbowl
PostPosted: Wed Mar 26, 2003 2:22 am GMT EthGMT 
BTW, does anyone have any secrets to neat cabling from the diag port.

There is very little clearance between the covers and the port. All the standard cables and adapters I have won't fit with the inside cover on.

I've been on a quest for premade low profile DB-9 male cable but it looks like I'm going to have to make my own if I want to put all the covers back on (without making any sheet metal changes).

arnold


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 Post subject: Nice efficiency, fun with fishbowl
PostPosted: Wed Mar 26, 2003 8:16 am GMT EthGMT 
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Red Cobra Delta Guppy
Red Cobra Delta Guppy
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Joined: Sun Jun 02, 2002 1:01 am GMT EndGMT
Posts: 1158
Location: Lakeland Florida
Standard DB9 will fit , the Key is it will be in front of the breaker cover , I did this on one of my inverters but removed the two thumb screws on on the db9.

Making your own db9 is really easy , the only pins used are pin #2 and pin #5

Henry [img]images/smiles/icon_razz.gif[/img]


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 Post subject: Nice efficiency, fun with fishbowl
PostPosted: Wed Mar 26, 2003 9:50 pm GMT EthGMT 
Ok, it's a bit primitive but it's so small I figure I should share the source code to the little perl script I used to reduce the data. I'm sure it can be done better and in other ways. You don't have to know perl to figure out what is doing.

I used the following link to install perl:
http://activestate.com/Products/Download/Register.plex?id=ActivePerl

I called the program convert.pl and I run it like:

convert.pl "input" "output"

It spits out a comma separated file the excel can easily load.


-------------------------------------------
$input=shift;
$output=shift;
$filler=6;
$interval=60;


open (OUT, ">$output");
open (IN, "<$input");
$count = 0;
$AC_PWR_A = 0;

while(<IN> ) {
if ($filler) {
$filler--;
next;
}

($Date, $Time, $VDC, $DC_Amps, $MPPT, $DC_PWR, $AC_PWR, $VAC, $whr, $AmbTemp, $HS_Temp,

$Freq, $Status) = split;
$count++;
$AC_PWR_S += $AC_PWR;
$DC_PWR_S += $DC_PWR;
if (!($count % $interval)) {
$AC_PWR_A = $AC_PWR_S/$interval;
$DC_PWR_A = $DC_PWR_S/$interval;
print OUT "$Date, $Time, $VDC, $DC_Amps, $MPPT, $DC_PWR_A, $AC_PWR_A, $VAC, ";
print OUT "$whr, $AmbTemp, $HS_Temp, $Freq, $Status\n";
$AC_PWR_S = 0;
$DC_PWR_S = 0;
}

}


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 Post subject: Nice efficiency, fun with fishbowl
PostPosted: Thu Mar 27, 2003 1:15 am GMT EthGMT 
<BLOCKQUOTE><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><HR>Originally posted by Solar Guppy:
Would it be OK if this is done at the new day roll over ? , the only issue I can think of is knowning when the day is really over and midnight seems like a safe bet
<HR></BLOCKQUOTE>

These wishlists sound familiar. [img]images/smiles/icon_wink.gif[/img]


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