[TRNSYS-users] Problem with TYPE190 (HYDROGEMS wind turbine)

[Michaël Kummert]

Todd,

There is a bug in Type 190, it is not allocating storage correctly to 
keep the power curve data. A side effect is that all units are storing / 
retrieveing their data from the same place, which explains why all units 
use data from the last one in the deck.

That bug was also present in Type 90 but it was fixed in 2002. Please 
remember that the HYDROGEMS library is a free add-on provided "as-is".

If you want to fix the problem, you just have to change the following 
section in the code (lines 1332 and after):

--- BEFORE ---

C    SET NUMBER OF S ARRAY STORAGE SPOTS NEEDED (10 + 2 FOR EACH DATA PAIR)
		INFO(10) = 10 + 2*NUM_PAIR

C    READ DATA FILE AND STORE IT IN S ARRAY


--- AFTER ---

C    SET NUMBER OF S ARRAY STORAGE SPOTS NEEDED (10 + 2 FOR EACH DATA PAIR)
           INFO(10)=10 + 2*NUM_PAIR
           ! Allocate storate in the S Array by calling Typeck
           CALL TYPECK(1,INFO,4,7,0)

C    READ DATA FILE AND STORE IT IN S ARRAY


Note that the first comment line might be wrapped in this email, 
everything up to "PAIR)" is on the same line.

I hope this helps,

Michaël Kummert





Todd Houstein wrote:
> I am using TRNSYS 15 with IISiBat 3 to build a model of a Remote Area Power 
> System with two different types of wind turbine. I have previously written 
> in about this. Michael Kummert was correct in his reply... I had not given 
> the two components unique Logical Unit numbers (thanks Michael!)... Since I 
> have corrected this the simulation runs without error. However I now have a 
> different problem...
> 
> Both wind turbines end up being simulated with the same parameters.
> 
> The two components have different external files specified for them. The 
> external files have different power vs wind speed relationships defined 
> within them. I have tested them individually in a simulation and have 
> verified that they are being simulated as desired. But when I put them both 
> in the same project together they both take on the parameters from only one 
> of the external files. Interestingly, they both take on the parameters from 
> the external file of the one that is last in the specified component order!
> 
> Regards,
> Todd Houstein
> Hydrogen & Allied Renewable Technologies (HART) research team
> School of Engineering
> University of Tasmania
> +61 3 6226 2094
> 
> -----Original Message-----
> From:	Michael Kummert
> Sent:	Wednesday, 13 October 2004 3:45
> To:	'trnsys-users at engr.wisc.edu'
> Subject:	Re: [TRNSYS-users] Problem with TYPE190 (HYDROGEMS wind turbine)
> 
> Todd,
> 
> 
>>I'm using TRNSYS 15 with IISiBat 3 to build a model of a Remote Area 
> 
> Power
> 
>>System (RAPS) with two different types of wind turbine (both modeled 
> 
> using
> 
>>Type 190 from the HYDROGEMS library). The .dck file has no errors, but 
> 
> the
> 
>>.lst file shows one error...
>>
>> ***** ERROR *****        TRNSYS ERROR #  71
>> LOGICAL UNIT FOR ASSIGN STATEMENT HAS BEEN PREVIOUSLY ASSIGNED
>> *|? File with WECS parameters? |1000
> 
> 
> It looks like you did not change the logical unit number (par(7)) in
> Type 190. All logical unit numbers must be given a unique value.
> 
> I hope this helps,
> 
> Michael Kummert
> 
> --
> _________________________________________________________
> 
> Michael Kummert
> 
> Solar Energy Laboratory - University of Wisconsin-Madison
> 1303 Engr Res Bldg, 1500 Engineering Drive
> Madison, WI 53706
> 
> Tel: +1 (608) 263-1589
> Fax: +1 (608) 262-8464
> E-mail: kummert at engr.wisc.edu
> 
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-- 
_________________________________________________________

Michaël Kummert

Solar Energy Laboratory - University of Wisconsin-Madison
1303 Engr Res Bldg, 1500 Engineering Drive
Madison, WI 53706

Tel: +1 (608) 263-1589
Fax: +1 (608) 262-8464
E-mail: kummert at engr.wisc.edu

SEL Web Site: http://sel.me.wisc.edu
TRNSYS Web Site: http://sel.me.wisc.edu/trnsys