Hello,
I would like to simulate a PV system with energy storage and I think
that I can´t use the type 194b PV-Inverter. I have to use the type 194 then a
regulator-inverter (type 48d) and finally the battery (type 47c). Am I right?
Thanks in advance,
Carol
De:
David Bradley [mailto:bradley@tess-inc.com]
Enviado el: 12 March 2010 18:51
Para: Dimas Firmanda Al Riza
CC: Maria Victoria Cambronero Vazquez; trnsys-users@cae.wisc.edu
Asunto: Re: [TRNSYS-users] batteries models
Dimas,
I am not sure that changing the cell voltage is valid. I think that the
Shepherd model assumes a certain shape to the battery's charge / discharge
curve that is inherent to lead acid batteries and not as valid to other battery
types. Someone please correct me if I am wrong about that.
Best,
David
Dimas Firmanda Al Riza wrote:
Dear David and Maria,
I'm also doing simulation that required different type of battery from the
existing battery type available in TRNSYS library,
I need to simulate 12V battery bank, that consist of 4 @12V 100Ah battery. Type
47b in TRNSYS library have a default voltage value of 2,5V each cell, Can I
simply change this value? or do I need to make some other modification for this
component?
David, I'd like to read the paper you've offered to maria, would you send me
also?
Thank you very much
-dimas-
ME Student
UTP
On Sat, Mar 13, 2010 at 12:18 AM, David Bradley <bradley@tess-inc.com> wrote:
Maria,
You are correct that the battery models in TRNSYS are for lead-acid
cells. I was directed to a paper some years ago that suggested a method for
modeling lithium-ion batteries. The method comes down to curve fitting the data
that you get from a manufacturer's catalog into a few polynomials. I had a hard
time following the some parts of the paper and never got a chance to implement
the model but it seemed to me as though the method could be extended to other
battery types. I'll forward you the paper in a separate email. If anyone else
has seen some modeling research in this area, I'd be quite interested in
hearing about it to improve on the existing battery models.
Best,
David
Maria Victoria Cambronero Vazquez wrote:
Hi,
I´d need
to know if there is a model of Li-Ion Battery or if I´m able to characterize
any kind of battery using an existing type (in spite of being lead-acid
battery).
Thank you
very much!
Maria
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USA
P: +1.608.274.2577
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***********************************************************************
Thermal Energy System Specialists (TESS), LLC
David BRADLEY 22 N. Carroll Street - Suite 370
Partner Madison, WI 53703
USA
P: +1.608.274.2577
F: +1.608.278.1475
E-mail: bradley@tess-inc.com
Web Pages: http://www.tess-inc.com and http://www.trnsys.com
***********************************************************************